[android-developers] Re: can not see the files after yaffs2 image mounted

[ebmajor]

Hi Rajesh,

thank you for your reply.

Here are the details.
First of all, I try to create my own yaffs2 image so I don't use
system.img and userdata.img.
My test environment is 'x86 desktop Ubuntu + MTD Nand flash simulator'
since I want to verify only if my yaffs2 image works well

I downloaded yaffs2 source code and compiled on my desktop Ubuntu to
generate mkyaffs2image.
and downloaded also MTD-Utils for flash tools and nandwrite.

After that, I created 'test' directory and copied several files in it
and then did the commands as steps
1. 'mkyaffs2image ./test img.yaffs2'
2. flash_eraseall /dev/mtd0
3. nandwrite -a -o /dev/mtd0 img.yaffs2
4. mount -t yaffs2 /dev/mtdblock0 /mnt/yaffs2

I've done all the steps without errors.
However when I typed 'ls -l /mnt/yaffs2', it shows only 'lost+found'
directory

I've googled about the trouble so saw some of people have the same
error but there is no solution on the web I searched.

Regards.
On 2월8일, 오후12시59분, Rajesh N  wrote:
> Hi,
>
>  Can u mention the steps which u have used to create yaffs2 image from u
> android file system?
>
>  Did u do u yaffs2 file system image for both data.img and system.img?
>
>  In android SDK1.0 data.img is read only, u should not create yaffs2 image
> for it, rather u need to create RAMFS or CRAMFS image for it. only
> system.img needs to be yaffs2 formated and mounted on system!
>
>  How r u burning yaffs2 image? from boot loader or from kernel?
>
> Please elaborate steps u did from creating an image to mounting the file
> system, it will rather give clear picture on what mistake u could have done
> in installing yaffs2 image!
>
> Best Regards,
> Rajesh N
>
> 2009/2/8 ebmajor 
>
>
>
> > Dear all,
>
> > I created img.yaffs2 using mkyaffs2image
> > and then mounted it into Ubuntu MTD NAND flash simulator.
> > so if I use 'cat /proc/filesystems' I can see yaffs and yaffs2
> > and by 'cat /proc/mtd' I can see
> > /dev/mtd0에 Nand simulator partition 0. (block size is 0x4000)
>
> > after that using mtd-utils, I did
>
> > 'flash_eraseall /dev/mtd0'
>
> > 'nandwrite -a -o /dev/mtd0 img.yaffs2
>
> > so I can see the image is writing as
>
> > writeing data to block 0
> > writeing data to block 4000
> > writeing data to block 8000
>
> > after that to see the files I mounted
>
> > mount -t yaffs2 /dev/mtdblock0 /mnt/yaffs2
>
> > but when I type the command 'ls -l /mnt/yaffs2'
> > there is only 'lost+found' directory
>
> > What's wrong with me?
>
> > regards.
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[android-developers] Re: Read/write JPEG metadata (e.g. in EXIF format)

[GiladH]

Hi Mike,

The standard staff - creation date and location, original rotation
etc.

The thing is, and correct me if you see otherwise,  that while an
imported jpeg get added to the MediaStore,
all this info stored in its metadata is not converted to MediaStore
metadata, hence the need for direct jpeg acces.

GiladH
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[android-developers] Re: Graphics question: bilinear interpolation

[Dianne Hackborn]

How about this:

http://code.google.com/android/reference/android/graphics/Paint.html#FILTER_BITMAP_FLAG

On Sat, Feb 7, 2009 at 8:06 PM, j  wrote:

>
> Is there an Android API for performing bilinear interpolation?  I
> discovered that my own interpolation implementation is extremely slow
> running on the G1 so it's pretty useless.
> >
>


-- 
Dianne Hackborn
Android framework engineer
hack...@android.com

Note: please don't send private questions to me, as I don't have time to
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[android-developers] Possible Bug in Dialog-Persistence (onCreateDialog / onPrepareDialog)

[plusminus]

Hi all,

I'm not 100% sure whether this is a bugs, so I'm asking on here.

Issue #1:
In my Acticity the user is passing trough some dialogs:

D/OPENSTREETMAP( 1468): Creating dialog: 1
D/OPENSTREETMAP( 1468): Preparing dialog: 1
D/OPENSTREETMAP( 1468): Creating dialog: 0
D/OPENSTREETMAP( 1468): Preparing dialog: 0
D/OPENSTREETMAP( 1468): Creating dialog: 5
D/OPENSTREETMAP( 1468): Preparing dialog: 5

>While a dialog is open<, the screenorientation is changed manually.

// Change in ScreenOrientation
D/OPENSTREETMAP( 1468): Creating dialog: 0
D/OPENSTREETMAP( 1468): Creating dialog: 1
D/OPENSTREETMAP( 1468): Creating dialog: 5

The Bug is in my opinion that onPrepareDialog is not called after the
change of the Screenorientation.
I assume it would happen to the currently opened Dialog.

Any suggestion is welcomed.

Best Regards,
plusminus
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[android-developers] Re: access to internal telephony

[Dianne Hackborn]

Not any time soon.  Most of the classes there will only work when running
code in the phone process, and making them work in other process would be
significant work.

Also on the G1 I don't believe that anything in the application processor
even has access the voice data stream, so it just wouldn't be able to do
what you want even if you were modifying the platform itself.

On Sat, Feb 7, 2009 at 11:04 AM, Gero Mudersbach  wrote:

> Hello,
>
>
> are there plans to make com.android.internal.telephony available public? As
> far as I understand it is currently not possible to write e.g. an answering
> machine "within" the current framework (standard sdk), because direct access
> to "acceptCall" and hangup methods is missing.
>
>
> Best
> G. Mudersbach
>
>
>
> >
>


-- 
Dianne Hackborn
Android framework engineer
hack...@android.com

Note: please don't send private questions to me, as I don't have time to
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[android-developers] Re: Reusing the +/- number spinner from TimePickerDialog?

[Dianne Hackborn]

DO NOT DO THIS.

See the word "internal" in there?  That means internal.  Do not touch.  Your
code will break in the future.  In fact some platform engineer just may go
rename that class for no reason at all and break your code.

2009/2/4 solomonk 

>
> No need to clone it if you really don't want to. You can use it in XML
> layot like
>
>android:id="@+id/picker"
>  android:layout_width="wrap_content"
>  android:layout_height="wrap_content"/>
>
> and then use reflection to set settings:
>
>Object o = findViewById(R.id.picker);
>Class c = o.getClass();
>try {
>Method m = c.getMethod("setRange", int.class, int.class);
>m.invoke(o, 0, 9);
>} catch (Exception e) {
>Log.e("", e.getMessage());
>}
>
> It sucks but it works :)
>
> On 28 янв, 20:17, Mark Murphy  wrote:
> > Will wrote:
> > > Setting a breakpoint when a DatePickerDialog is open on the emulator's
> > > screen shows a com.android.internal.widget.NumberPicker for month,
> > > year, and date (1numberpickereach for a total of three
> > > NumberPickers).  It looks like the same widget used for a timepicker;
> > > based on the name I'm sure it is.
> >
> > > Importing android.internal.widget doesn't work.  It was worth a shot.
> >
> > The source to it is probably available on source.android.com. Clone your
> > own until they open that one up in the SDK.
> >
> > --
> > Mark Murphy (a Commons Guy)http://commonsware.com
> > _The Busy Coder's Guide to Android Development_ Version 2.0 Available!
>
> >
>


-- 
Dianne Hackborn
Android framework engineer
hack...@android.com

Note: please don't send private questions to me, as I don't have time to
provide private support.  All such questions should be posted on public
forums, where I and others can see and answer them.

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[android-developers] Graphics question: bilinear interpolation

[j]

Is there an Android API for performing bilinear interpolation?  I
discovered that my own interpolation implementation is extremely slow
running on the G1 so it's pretty useless.
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[android-developers] Re: native C++ SIP stack on Android

[Dianne Hackborn]

You are posting to android-developers, for talking about writing
applications using the SDK, which does not currently support native code, so
you can't use JNI at all.

If you post on android-platform or android-framework, however, about adding
code to the platform itself, the answer may be very different. ;)

On Fri, Jan 9, 2009 at 1:37 AM, pinguin  wrote:

>
> Ok, thanks. So it would be able when i have a SIP stack written in C.
> Is there any restrictions using JNI in adroid. Can i load all libs of
> my sip stack ?
>
> On 8 Jan., 18:08, "David Turner"  wrote:
> > first, you cannot have C++ code in the kernel.
> >
> > however, depending on how your stack is designed, you may be able to use
> it
> > from Java through JNI
> >
> > given that you give absolutely no information about your stack's
> interface,
> > it's really difficult to answer your question
> >
> > On Thu, Jan 8, 2009 at 5:57 PM, pinguin  wrote:
> >
> > > Can i port SIP stack written in C++ to android and let it running as
> > > service in kernel ?
> > > and the GUI will communicate with SIP stack through JNI ?
> >
> >
> >
>


-- 
Dianne Hackborn
Android framework engineer
hack...@android.com

Note: please don't send private questions to me, as I don't have time to
provide private support.  All such questions should be posted on public
forums, where I and others can see and answer them.

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[android-developers] Re: can not see the files after yaffs2 image mounted

[Rajesh N]

Hi,

 Can u mention the steps which u have used to create yaffs2 image from u
android file system?

 Did u do u yaffs2 file system image for both data.img and system.img?

 In android SDK1.0 data.img is read only, u should not create yaffs2 image
for it, rather u need to create RAMFS or CRAMFS image for it. only
system.img needs to be yaffs2 formated and mounted on system!

 How r u burning yaffs2 image? from boot loader or from kernel?

Please elaborate steps u did from creating an image to mounting the file
system, it will rather give clear picture on what mistake u could have done
in installing yaffs2 image!


Best Regards,
Rajesh N


2009/2/8 ebmajor 

>
> Dear all,
>
> I created img.yaffs2 using mkyaffs2image
> and then mounted it into Ubuntu MTD NAND flash simulator.
> so if I use 'cat /proc/filesystems' I can see yaffs and yaffs2
> and by 'cat /proc/mtd' I can see
> /dev/mtd0에 Nand simulator partition 0. (block size is 0x4000)
>
> after that using mtd-utils, I did
>
> 'flash_eraseall /dev/mtd0'
>
> 'nandwrite -a -o /dev/mtd0 img.yaffs2
>
> so I can see the image is writing as
>
> writeing data to block 0
> writeing data to block 4000
> writeing data to block 8000
>
> after that to see the files I mounted
>
> mount -t yaffs2 /dev/mtdblock0 /mnt/yaffs2
>
> but when I type the command 'ls -l /mnt/yaffs2'
> there is only 'lost+found' directory
>
> What's wrong with me?
>
> regards.
> >
>

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[android-developers] can not see the files after yaffs2 image mounted

[ebmajor]

Dear all,

I created img.yaffs2 using mkyaffs2image
and then mounted it into Ubuntu MTD NAND flash simulator.
so if I use 'cat /proc/filesystems' I can see yaffs and yaffs2
and by 'cat /proc/mtd' I can see
/dev/mtd0에 Nand simulator partition 0. (block size is 0x4000)

after that using mtd-utils, I did

'flash_eraseall /dev/mtd0'

'nandwrite -a -o /dev/mtd0 img.yaffs2

so I can see the image is writing as

writeing data to block 0
writeing data to block 4000
writeing data to block 8000

after that to see the files I mounted

mount -t yaffs2 /dev/mtdblock0 /mnt/yaffs2

but when I type the command 'ls -l /mnt/yaffs2'
there is only 'lost+found' directory

What's wrong with me?

regards.
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[android-developers] Re: SlidingDrawer not working with RC33

[Dianne Hackborn]

When a new SDK is posted, there is a complete API diff and overview of the
changes.  However, there is very little change to the platform APIs in 1.1,
so there isn't much to say about this one.  I'm not sure when an SDK for it
will be available.

Also, out of curiosity, how did you go about using the private class?  If
you are actually using the SDK, you shouldn't be able to use any of the
private classes, just to protect people from accidentally using things that
will break on them.

Finally, if there is a class like this in the internal implementation that
you really want to use, just copy it out and build the copy in to your own
code.  That way your code won't break when the system changes.

On Sat, Feb 7, 2009 at 4:10 PM, Stefan  wrote:

>
> Yes, I do agree that relying on private APIs is dangerous and should
> be avoided for all the reasons you mention.
>
> (The only reason I posted my findings is to save somebody the
> debugging time as it was not obvious what was the reason at first)
>
> This brings another related question. Is there a single place where we
> as developers can see what has changed between the public releases of
> the API's for example from RC30 => RC33? - (preferably both internal
> and external changes)?
>
> The only thing I could find is that RC33 has fixed several bugs and
> added several features, but nothing specific about what has changed
> and what bugs have been fixed.
>
> Stefan
>
>
> On Feb 7, 6:21 pm, Jean-Baptiste Queru  wrote:
> > Even worse, it hurts the entire ecosystem, by making users believe
> > that plaftorm upgrades have bugs when in fact the applications are
> > broken to start with.
> >
> > JBQ
> >
> >
> >
> > On Sat, Feb 7, 2009 at 3:18 PM, Romain Guy  wrote:
> > > That means your app will break in cupcake though.
> >
> > > Please, please don't use private APIs, it only hurts the users :(
> >
> > > On Feb 7, 2009 1:43 PM, "Stefan"  wrote:
> >
> > > After digging a bit around in the source code, it looks like the
> > > namespace used for the attributes of the "internal" widgets has
> > > changed in RC33 from xmlns:android="
> http://schemas.android.com/apk/res/
> > > android" to some other namespace
> > > (probably something likehttp://
> schemas.android.com/apk/res/android.intenral
> > > ??) and that caused the SlidingDrawer to not
> > > find its attributes.
> >
> > > Well... one should never rely on internal classes, but... the
> > > SlidingDrawer is actually so useful...
> > > I am glad it will make it as an officially supported class.
> >
> > > On Feb 7, 4:34 pm, Romain Guy  wrote: > Even
> worse,
> > > SlidingDrawer will move ...
> >
> > >> On Sat, Feb 7, 2009 at 12:14 PM, Jean-Baptiste Queru <
> j...@android.com>
> > >> wrote: > > > Oh, ah, I had...
> >
> > >> > On Sat, Feb 7, 2009 at 11:28 AM, Romain Guy 
> > >> > wrote: > > >> No, SlidingDraw...
> >
> > >> >> On Sat, Feb 7, 2009 at 7:18 AM, Jean-Baptiste Queru <
> j...@android.com>
> > >> >> wrote:
> >
> > >> >>> Can you please report this issue 
> > >> >>> inhttp://b.android.com/?(aplain
> >
> > >> >>> copy-paste will do). > > >>> Thanks, > >>> JBQ >
> >
> > >> >>> On Sat, Feb 7, 2009 at 6:54 AM, Stefan 
> wrote: >
> > >> >>> >  It appears that  ...
> >
> > >> >> romain...@android.com
> >
> > >> > >> Note: please don't send private questions to me, as I don't have
> time
> > >> > >> > >> to provide private...
> >
> > >> Romain Guy > Android framework engineer
> >
> > >> romain...@android.com
> >
> > >> > Note: please don't send private questions to me, as I don't have
> time >
> > >> > to provide private suppo...
> >
> > --
> > Jean-Baptiste M. "JBQ" Queru
> > Android Engineer, Google.
> >
>


-- 
Dianne Hackborn
Android framework engineer
hack...@android.com

Note: please don't send private questions to me, as I don't have time to
provide private support.  All such questions should be posted on public
forums, where I and others can see and answer them.

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[android-developers] Re: App source from Git not compatible with current SDK?

[Dianne Hackborn]

They are compiled against the framework library, before the non-SDK symbols
have been stripped from it.  The platform build system -can- build against
the SDK version, but that feature didn't exist until very late in to the 1.0
platform, so many of the apps don't use it, and so as much as one tries to
avoid it they will end up unintentionally using non-SDK methods.  Also there
was a lot of cleanup of the SDK that happened late in 1.0, when there wasn't
time to update all of the existing apps to use new official SDK APIs.

As for the Intent flag, that is actually a new feature in Cupcake (which is
in the SDK), so it just means you are trying to build a post-1.0 application
against the 1.0 SDK.  There is a very good chance this won't work, like
here.  If you want to build against the 1.0 SDK, you really should do this
from the 1.0 version of the app.  I don't know about the Vibrator thing;
there is certaily a public API for controlling the vibrator.

Some specific answers:

On Sat, Feb 7, 2009 at 6:39 PM, Rich  wrote:

> If that's the case, how were they compiled? Do you have a private SDK
> different from our SDK?


Build it with the platform build system, as everyone else who currently
works on the app does.  There is nothing hidden about this.


> So what should I do.. Will I be able to clean this code up and use it,
> or should I just wait for the GPowers to be release a full SDK?


There is nothing being kept from you.  The full complete source to the
platform is right up there in git for you to do whatever you want with it.


> I'm fairly miffed about this quite honestly, as what is the point of
> having this as an open source project if we can't even compile the
> code to be working on.


Before publicly getting miffed at people (about stuff they gave you for free
no less), it is good to have an idea of what you are getting miffed about.
:}

-- 
Dianne Hackborn
Android framework engineer
hack...@android.com

Note: please don't send private questions to me, as I don't have time to
provide private support.  All such questions should be posted on public
forums, where I and others can see and answer them.

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[android-developers] Re: App source from Git not compatible with current SDK?

[Rich]

I see..

If that's the case, how were they compiled? Do you have a private SDK
different from our SDK?

Is there anyway I would be able to get this code to compile?

As far as I can tell, the only two unresolvable problems seem to be a
missing intent, Intent.FLAG_ACTIVITY_NO_USER_ACTION and reference to a
Vibrator() class (heh). The Intent seems like a possibly unsolvable
part.

So what should I do.. Will I be able to clean this code up and use it,
or should I just wait for the GPowers to be release a full SDK?

I'm fairly miffed about this quite honestly, as what is the point of
having this as an open source project if we can't even compile the
code to be working on.

Rich

On Feb 7, 6:20 pm, Romain Guy  wrote:
> The system apps are not SDK compliant yet. We'd like to fix them but no eta
> yet.
>
> On Feb 7, 2009 2:07 PM, "Rich"  wrote:
>
> I loaded up the Alarm Clock app from the current git (http://
> android.git.kernel.org/?p=platform/packages/apps/
> AlarmClock.git;a=snapshot;h=c8208f9f6ff76479da3b1eb0cedbd5500b8be1f4;sf=tgz)
> into eclipse, and there are a lot of errors, unfound imports and
> things like that.
>
> Are the 'cupcake' versions of the /apps/ incompatible with the current
> SDK? Should I bother trying to fix them?
>
> Thanks!
> Rich
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[android-developers] Re: Context.startService - The service does not stay running...

[Jon Colverson]

Look into the PowerManager:

http://code.google.com/android/reference/android/os/PowerManager.html

--
Jon

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[android-developers] Re: Please Help! Service seems to sleep when phone is inactive

[clarkbriancarl]

Wow, some great information here. Thanks for taking the time!


On Feb 7, 6:38 pm, Christoph Studer  wrote:
> Android uses a very proactive power management approach. Basically,
> the policy is to go to sleep if not told otherwise.
>
> The way to signal to the system that it should stay awake are
> wakelocks. As soon as there's at least one app holding a wakelock, the
> system won't go to sleep and all the running processes can do their
> work (even those that are not holding a wakelock at that moment).
>
> Any application with the according permission can acquire a wakelock
> and thus prevent the system from sleeping. There are several "wakelock
> levels", you can read all the details 
> here:http://code.google.com/android/reference/android/os/PowerManager.html
>
> In your case, as a background service, you probably want to hold a
> PARTIAL_WAKE_LOCK which will keep the CPU running as long as it's
> acquired.
>
> Please be very careful with using the wakelock, as this affects
> battery life a lot and it is hard for users to determine which
> application is causing the drainage and uninstall it. For every
> acquire(), make sure you have a matching release() call that is
> guaranteed to be executed* and only hold the lock for the minimal
> amount of time.
>
> Also ask yourself whether it's crucial that your service is preventing
> the system to go to sleep or whether it would be enough to do work
> only when the system is awake anyway (e.g. because the user is
> interacting with the phone).
>
> The AlarmManager can be used to get an intent delivered to you at a
> certain time, regardless of the sleep-state of the system. The
> AlarmManager will wake the system up if necessary and hold a wakelock
> until the intent has been delivered to you.
>
> As you should not do long-lasting work on the main thread of your
> service (which is receiving the intent), you should spawn a thread and
> manually acquire a wakelock.
>
> Sorry for the long post and I hope this information is helpful (and
> accurate :-)).
>
> Christoph
>
> * One has to pay special attention to the control flow in the case of
> exceptions. Make sure that a thrown exception won't prevent release()
> from being called:
>
> void doSomeWork() throws SomeException { ... }
>
> void barWrong() {
>   try {
>       wakelock.acquire();
>       doSomeWork();
>       wakelock.release(); // <- Won't be called on exception
>   } catch (SomeException  e) {
>       Log.w(...);
>   }
>
> }
>
> void barRight() {
>   try {
>       wakelock.acquire();
>       doSomeWork();
>   } catch (SomeException e) {
>       Log.w(...);
>   } finally {
>       wakelock.release();
>   }
>
> }
>
> On Sat, Feb 7, 2009 at 11:19 PM, clarkbriancarl
>
>  wrote:
>
> > Thanks for the reply. I've been reading and tweaking for over a week
> > trying to figure this out. Thats a good idea to use the Alarm Manager.
> > I think I will give that a try. I would still like to hear from a more
> > experienced devloper or a google engineer if this is the way an
> > Android service is supposed to behave.
>
> > On Feb 7, 3:29 pm, Greg White  wrote:
> >> On Sat, Feb 7, 2009 at 11:50 AM, Brian  wrote:
> >> > While testing the service, I have come across something interesting.
>
> >> > My problem is that the service appears to sleep or pause for a few
> >> > hours, run a short time, and then sleep for a few more hours, then run
> >> > a short time, etc when the phone has become inactive.
>
> >> I'm interested to hear what others say.  My experience mirrors yours.  I
> >> believe the phone is going to sleep and freezing the service.
>
> >> What I did was to use the AlarmManager to wake the service to do its work.
> >> While it was working, I used a wake lock to keep the phone from sleeping.
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[android-developers] Re: WebView responding to touch events

[kolby]

Sorry,
obviously you have. Nevermind.

Michael

On Feb 7, 8:48 pm, kolby  wrote:
> Mark,
>
> I'm not sure it would work, but have you tried to just
> setFocusableInTouchMode(true) on the WebView object? Seems a lot
> easier than messing with the touch handler.
>
> Michael
>
> On Feb 7, 3:45 pm, Mark Nuetzmann  wrote:
>
> > Sergey,
> > I ended up doing basically what you posted but only for the
> > ACTION_DOWN as that seemed to handle it.
>
> > Fred,
> > I tried adding an OnClickListener but never got any callbacks.  I
> > assume that the WebView is designed to handle this internally and
> > expects you to use the WebViewClient.shouldOverrideUrlLoading() to
> > respond to the clicks.  As to whether it happens in the emulator I am
> > not sure.  I learned a long time ago with WM not to trust emulators so
> > I only debug on-device...
>
> > Thanks for the comments guys!
> > Mark
>
> > On Feb 7, 11:28 am, Sergey Ten  wrote:
>
> > > Mark,
>
> > > I think I had this problem myself and could solve it by using the 
> > > following
> > > code:
>
> > >        webView.setOnTouchListener(new View.OnTouchListener() {
> > >            public boolean onTouch(View v, MotionEvent event) {
> > >                switch (event.getAction()) {
> > >                    case MotionEvent.ACTION_DOWN:
> > >                    case MotionEvent.ACTION_UP:
> > >                        if (!v.hasFocus()) {
> > >                            v.requestFocus();
> > >                        }
> > >                        break;
> > >                }
> > >                return false;
> > >            }
> > >        });
>
> > > Hope this would help,
> > > Sergey
>
> > > On Sat, Feb 7, 2009 at 12:07 AM, Mariano Kamp 
> > > wrote:
>
> > > > Mark, maybe you should post some code?
>
> > > > On Thu, Feb 5, 2009 at 4:36 PM, Mark Nuetzmann 
> > > > wrote:
>
> > > >> I have an Activity that has a WebView that contains some simple html
> > > >> that allows me to display a Terms & Conditions link that if touched or
> > > >> clicked calls another activity.  My problem is unless the link in the
> > > >> WebView has focus (ie, the text is wrapped with that little orange
> > > >> focus) I cannot touch the link and have it work.  If any other view on
> > > >> the activity has focus, touching the WebView with the link does
> > > >> nothing.  The other Views that had focus loose focus, but the WebView
> > > >> does not receive focus.  I have tried calling setFocusable(true) and
> > > >> setFocusableInTouchMode(true) but that does not do any good...
>
> > > >> I would really like to know what you have to do to get a WebView to
> > > >> respond to touch events without using the trackball to scroll to the
> > > >> view before touching it.
>
> > > >> thank you,
> > > >> Mark
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[android-developers] Re: WebView responding to touch events

[kolby]

Mark,

I'm not sure it would work, but have you tried to just
setFocusableInTouchMode(true) on the WebView object? Seems a lot
easier than messing with the touch handler.

Michael

On Feb 7, 3:45 pm, Mark Nuetzmann  wrote:
> Sergey,
> I ended up doing basically what you posted but only for the
> ACTION_DOWN as that seemed to handle it.
>
> Fred,
> I tried adding an OnClickListener but never got any callbacks.  I
> assume that the WebView is designed to handle this internally and
> expects you to use the WebViewClient.shouldOverrideUrlLoading() to
> respond to the clicks.  As to whether it happens in the emulator I am
> not sure.  I learned a long time ago with WM not to trust emulators so
> I only debug on-device...
>
> Thanks for the comments guys!
> Mark
>
> On Feb 7, 11:28 am, Sergey Ten  wrote:
>
> > Mark,
>
> > I think I had this problem myself and could solve it by using the following
> > code:
>
> >        webView.setOnTouchListener(new View.OnTouchListener() {
> >            public boolean onTouch(View v, MotionEvent event) {
> >                switch (event.getAction()) {
> >                    case MotionEvent.ACTION_DOWN:
> >                    case MotionEvent.ACTION_UP:
> >                        if (!v.hasFocus()) {
> >                            v.requestFocus();
> >                        }
> >                        break;
> >                }
> >                return false;
> >            }
> >        });
>
> > Hope this would help,
> > Sergey
>
> > On Sat, Feb 7, 2009 at 12:07 AM, Mariano Kamp wrote:
>
> > > Mark, maybe you should post some code?
>
> > > On Thu, Feb 5, 2009 at 4:36 PM, Mark Nuetzmann 
> > > wrote:
>
> > >> I have an Activity that has a WebView that contains some simple html
> > >> that allows me to display a Terms & Conditions link that if touched or
> > >> clicked calls another activity.  My problem is unless the link in the
> > >> WebView has focus (ie, the text is wrapped with that little orange
> > >> focus) I cannot touch the link and have it work.  If any other view on
> > >> the activity has focus, touching the WebView with the link does
> > >> nothing.  The other Views that had focus loose focus, but the WebView
> > >> does not receive focus.  I have tried calling setFocusable(true) and
> > >> setFocusableInTouchMode(true) but that does not do any good...
>
> > >> I would really like to know what you have to do to get a WebView to
> > >> respond to touch events without using the trackball to scroll to the
> > >> view before touching it.
>
> > >> thank you,
> > >> Mark
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[android-developers] Re: RC33 for Dev Phone

[Brad Fuller]

On Sat, Feb 7, 2009 at 11:42 AM, Brad Fuller  wrote:
> On Fri, Feb 6, 2009 at 6:16 PM, Disconnect  wrote:
>> Install jf's 1.41-rc33. http://andblogs.net/tag/jf
>>
>> It is signed with test keys -and- its a full install instead of a patch, so
>> no perquisites.
>
> Has anyone tried this on their devphone? I only have one devphone so
> I'm reluctant to try.
>

I did it and it seems to work. I commented on the site on the procedure I used:

Ok, I found out why I couldn't load the update package, I didn't have
the right sequence. It is:
1. Rename file that you would like to update to "update.zip"
2. Copy to SD card. Make sure you unmount from your PC so it'll copy
completely over.
3. Turn off G1
5. Power back on holding down END_CALL+Home+Back keys. You'll have to
hold it down until it responds.
6. When icon screen appears, Hold down Alt-L. You will get a list of
operations to perform.
7 - You might have to delete your User Data by selecting Alt-W. I had
to do this to prevent the Android icon from hanging when rebooting.
Unfortunatley, all user data is gone. If you are using ATT, you'll
have to add your APN again.
8. Hold down Alt-S to load update. This will take a minute. A list of
operations will be shown. WAIT until it says to Press Home+Back to
reboot.
9. After loading, Hold down Home+Back keys. It'll reboot a couple of times.

That should be it.




-- 
Brad Fuller

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[android-developers] Re: XML parsing problem (stops at non-utf characters)

[Tim Bray]

On Sat, Feb 7, 2009 at 9:25 AM, John Doe  wrote:

>
> I am having difficulty while parsing some Turkish sites.Here is the
> part of the code. The problem is when the title contains some non-UTF
> characters like ç,ü,ı,ö,ğ it stops parsing and doesnt read the rest.
> For example if the title is "Ebru Gündeş askere gitti" it only reads
> until "ş" which is "Ebru G". Or when reading "Serdar Ortaç sünnet
> oldu" it only read "Serdar Or"
> How can I fix the problem? Any suggestions???


Well, what you probably mean is "non-ASCII".  Those are all perfectly
satisfactory Unicode characters.  What you need to do is figure out what
"encoding" your text is in.  At the top of the XML there should be a thing
that looks like



If the encoding of your file is UTF-8 (the default) you don't need the
encoding= bit.  So one thing would be to convert your file to UTF-8; there
are a bunch of encoding conversion tools around.  Another would be to figure
out out the encoding, quite possibly it's in ISO-Latin-1, and put in
"ISO-Latin-1" for "XXX" above.  Another would be to convert the non-ASCII
characters to what are called "numeric character references".  For
example, ç is U+00E7 in Unicode, so you can include it as ç in your XML
and everything will be fine.

The real lesson is that internationalization is hard.  I've written a couple
of things on this that are widely read and might be useful.

http://www.tbray.org/ongoing/When/200x/2003/04/06/Unicode
http://www.tbray.org/ongoing/When/200x/2003/04/26/UTF

 -Tim

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[android-developers] Re: Please Help! Service seems to sleep when phone is inactive

[Christoph Studer]

Android uses a very proactive power management approach. Basically,
the policy is to go to sleep if not told otherwise.

The way to signal to the system that it should stay awake are
wakelocks. As soon as there's at least one app holding a wakelock, the
system won't go to sleep and all the running processes can do their
work (even those that are not holding a wakelock at that moment).

Any application with the according permission can acquire a wakelock
and thus prevent the system from sleeping. There are several "wakelock
levels", you can read all the details here:
http://code.google.com/android/reference/android/os/PowerManager.html

In your case, as a background service, you probably want to hold a
PARTIAL_WAKE_LOCK which will keep the CPU running as long as it's
acquired.

Please be very careful with using the wakelock, as this affects
battery life a lot and it is hard for users to determine which
application is causing the drainage and uninstall it. For every
acquire(), make sure you have a matching release() call that is
guaranteed to be executed* and only hold the lock for the minimal
amount of time.

Also ask yourself whether it's crucial that your service is preventing
the system to go to sleep or whether it would be enough to do work
only when the system is awake anyway (e.g. because the user is
interacting with the phone).

The AlarmManager can be used to get an intent delivered to you at a
certain time, regardless of the sleep-state of the system. The
AlarmManager will wake the system up if necessary and hold a wakelock
until the intent has been delivered to you.

As you should not do long-lasting work on the main thread of your
service (which is receiving the intent), you should spawn a thread and
manually acquire a wakelock.

Sorry for the long post and I hope this information is helpful (and
accurate :-)).

Christoph

* One has to pay special attention to the control flow in the case of
exceptions. Make sure that a thrown exception won't prevent release()
from being called:

void doSomeWork() throws SomeException { ... }

void barWrong() {
  try {
  wakelock.acquire();
  doSomeWork();
  wakelock.release(); // <- Won't be called on exception
  } catch (SomeException  e) {
  Log.w(...);
  }
}

void barRight() {
  try {
  wakelock.acquire();
  doSomeWork();
  } catch (SomeException e) {
  Log.w(...);
  } finally {
  wakelock.release();
  }
}



On Sat, Feb 7, 2009 at 11:19 PM, clarkbriancarl
 wrote:
>
> Thanks for the reply. I've been reading and tweaking for over a week
> trying to figure this out. Thats a good idea to use the Alarm Manager.
> I think I will give that a try. I would still like to hear from a more
> experienced devloper or a google engineer if this is the way an
> Android service is supposed to behave.
>
> On Feb 7, 3:29 pm, Greg White  wrote:
>> On Sat, Feb 7, 2009 at 11:50 AM, Brian  wrote:
>> > While testing the service, I have come across something interesting.
>>
>> > My problem is that the service appears to sleep or pause for a few
>> > hours, run a short time, and then sleep for a few more hours, then run
>> > a short time, etc when the phone has become inactive.
>>
>> I'm interested to hear what others say.  My experience mirrors yours.  I
>> believe the phone is going to sleep and freezing the service.
>>
>> What I did was to use the AlarmManager to wake the service to do its work.
>> While it was working, I used a wake lock to keep the phone from sleeping.
> >
>

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[android-developers] Re: SlidingDrawer not working with RC33

[Stefan]

Yes, I do agree that relying on private APIs is dangerous and should
be avoided for all the reasons you mention.

(The only reason I posted my findings is to save somebody the
debugging time as it was not obvious what was the reason at first)

This brings another related question. Is there a single place where we
as developers can see what has changed between the public releases of
the API's for example from RC30 => RC33? - (preferably both internal
and external changes)?

The only thing I could find is that RC33 has fixed several bugs and
added several features, but nothing specific about what has changed
and what bugs have been fixed.

Stefan


On Feb 7, 6:21 pm, Jean-Baptiste Queru  wrote:
> Even worse, it hurts the entire ecosystem, by making users believe
> that plaftorm upgrades have bugs when in fact the applications are
> broken to start with.
>
> JBQ
>
>
>
> On Sat, Feb 7, 2009 at 3:18 PM, Romain Guy  wrote:
> > That means your app will break in cupcake though.
>
> > Please, please don't use private APIs, it only hurts the users :(
>
> > On Feb 7, 2009 1:43 PM, "Stefan"  wrote:
>
> > After digging a bit around in the source code, it looks like the
> > namespace used for the attributes of the "internal" widgets has
> > changed in RC33 from xmlns:android="http://schemas.android.com/apk/res/
> > android" to some other namespace
> > (probably something likehttp://schemas.android.com/apk/res/android.intenral
> > ??) and that caused the SlidingDrawer to not
> > find its attributes.
>
> > Well... one should never rely on internal classes, but... the
> > SlidingDrawer is actually so useful...
> > I am glad it will make it as an officially supported class.
>
> > On Feb 7, 4:34 pm, Romain Guy  wrote: > Even worse,
> > SlidingDrawer will move ...
>
> >> On Sat, Feb 7, 2009 at 12:14 PM, Jean-Baptiste Queru 
> >> wrote: > > > Oh, ah, I had...
>
> >> > On Sat, Feb 7, 2009 at 11:28 AM, Romain Guy 
> >> > wrote: > > >> No, SlidingDraw...
>
> >> >> On Sat, Feb 7, 2009 at 7:18 AM, Jean-Baptiste Queru 
> >> >> wrote:
>
> >> >>> Can you please report this issue inhttp://b.android.com/?(a plain
>
> >> >>> copy-paste will do). > > >>> Thanks, > >>> JBQ >
>
> >> >>> On Sat, Feb 7, 2009 at 6:54 AM, Stefan  wrote: >
> >> >>> >  It appears that  ...
>
> >> >> romain...@android.com
>
> >> > >> Note: please don't send private questions to me, as I don't have time
> >> > >> > >> to provide private...
>
> >> Romain Guy > Android framework engineer
>
> >> romain...@android.com
>
> >> > Note: please don't send private questions to me, as I don't have time >
> >> > to provide private suppo...
>
> --
> Jean-Baptiste M. "JBQ" Queru
> Android Engineer, Google.
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[android-developers] Re: Android Developers in Atlanta, GA

[BarbieDahl]

Hello mission4u,

We would love to checkout your app.  You can join our group if you
want, we want to do some meetups since the group so far is made up of
Atlanta area folks but we will post some stuff to our group website as
well.  The group is called Droidlanta, you can join the group and
check out our posts.  Welcome aboard, we would love to have you.

Thanks,
Barbara

On Feb 5, 7:32 pm, mission4u  wrote:
> I am in Charlotte, NC and have designed app named iTubeStatus... it
> wont be available in US Android market but you can search its
> description online. Let me know if you guys wanna see the app. I can
> change a setting for a while I can join your team too...Thanks
>
> On Jan 30, 9:10 am, BarbieDahl  wrote:
>
> > Are there any developers in Atlanta, GA that would like to meet and
> > discuss android app ideas as well as learn new and advanced android
> > topics? I would like to network with some other developers in and
> > around Atlanta, GA for help, mentoring and support.  Please reply if
> > you are interested.
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[android-developers] Re: Android Developers in Atlanta, GA

[BarbieDahl]

Hey Alton,

I saw that you already joined Droidlanta, great to have you.  We are
planning a meetup to discuss various things to get this group going.
We would love to have you attend.  We tentatively have the 4th Tuesday
of the month setup to meet.  Check the meetup post in Droidlanta for
more information.

Again, Welcome!

On Feb 7, 3:12 pm, Alton  wrote:
> Hi there,
>
> I'm in Marietta and would be interested.
>
> Alton
>
> On Jan 30, 9:10 am, BarbieDahl  wrote:
>
> > Are there any developers inAtlanta, GA that would like to meet and
> > discuss android app ideas as well as learn new and advanced android
> > topics? I would like to network with some other developers in and
> > aroundAtlanta, GA for help, mentoring and support.  Please reply if
> > you are interested.
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[android-developers] Re: SlidingDrawer not working with RC33

[Jean-Baptiste Queru]

Even worse, it hurts the entire ecosystem, by making users believe
that plaftorm upgrades have bugs when in fact the applications are
broken to start with.

JBQ

On Sat, Feb 7, 2009 at 3:18 PM, Romain Guy  wrote:
> That means your app will break in cupcake though.
>
> Please, please don't use private APIs, it only hurts the users :(
>
> On Feb 7, 2009 1:43 PM, "Stefan"  wrote:
>
>
> After digging a bit around in the source code, it looks like the
> namespace used for the attributes of the "internal" widgets has
> changed in RC33 from xmlns:android="http://schemas.android.com/apk/res/
> android" to some other namespace
> (probably something like http://schemas.android.com/apk/res/android.intenral
> ??) and that caused the SlidingDrawer to not
> find its attributes.
>
> Well... one should never rely on internal classes, but... the
> SlidingDrawer is actually so useful...
> I am glad it will make it as an officially supported class.
>
> On Feb 7, 4:34 pm, Romain Guy  wrote: > Even worse,
> SlidingDrawer will move ...
>
>> On Sat, Feb 7, 2009 at 12:14 PM, Jean-Baptiste Queru 
>> wrote: > > > Oh, ah, I had...
>
>> > On Sat, Feb 7, 2009 at 11:28 AM, Romain Guy 
>> > wrote: > > >> No, SlidingDraw...
>
>> >> On Sat, Feb 7, 2009 at 7:18 AM, Jean-Baptiste Queru 
>> >> wrote:
>>
>> >>> Can you please report this issue inhttp://b.android.com/? (a plain
>
>> >>> copy-paste will do). > > >>> Thanks, > >>> JBQ >
>
>> >>> On Sat, Feb 7, 2009 at 6:54 AM, Stefan  wrote: >
>> >>> >  It appears that  ...
>
>> >> romain...@android.com
>
>> > >> Note: please don't send private questions to me, as I don't have time
>> > >> > >> to provide private...
>
>> Romain Guy > Android framework engineer
>
>> romain...@android.com
>
>> > Note: please don't send private questions to me, as I don't have time >
>> > to provide private suppo...
>
> >
>



-- 
Jean-Baptiste M. "JBQ" Queru
Android Engineer, Google.

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[android-developers] Re: App source from Git not compatible with current SDK?

[Romain Guy]

The system apps are not SDK compliant yet. We'd like to fix them but no eta
yet.

On Feb 7, 2009 2:07 PM, "Rich"  wrote:


I loaded up the Alarm Clock app from the current git (http://
android.git.kernel.org/?p=platform/packages/apps/
AlarmClock.git;a=snapshot;h=c8208f9f6ff76479da3b1eb0cedbd5500b8be1f4;sf=tgz)
into eclipse, and there are a lot of errors, unfound imports and
things like that.

Are the 'cupcake' versions of the /apps/ incompatible with the current
SDK? Should I bother trying to fix them?

Thanks!
Rich

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[android-developers] Re: SlidingDrawer not working with RC33

[Romain Guy]

That means your app will break in cupcake though.

Please, please don't use private APIs, it only hurts the users :(

On Feb 7, 2009 1:43 PM, "Stefan"  wrote:


After digging a bit around in the source code, it looks like the
namespace used for the attributes of the "internal" widgets has
changed in RC33 from xmlns:android="http://schemas.android.com/apk/res/
android" to some other namespace
(probably something like http://schemas.android.com/apk/res/android.intenral
??) and that caused the SlidingDrawer to not
find its attributes.

Well... one should never rely on internal classes, but... the
SlidingDrawer is actually so useful...
I am glad it will make it as an officially supported class.

On Feb 7, 4:34 pm, Romain Guy  wrote: > Even worse,
SlidingDrawer will move ...

> On Sat, Feb 7, 2009 at 12:14 PM, Jean-Baptiste Queru 
wrote: > > > Oh, ah, I had...

> > On Sat, Feb 7, 2009 at 11:28 AM, Romain Guy 
wrote: > > >> No, SlidingDraw...
> >> On Sat, Feb 7, 2009 at 7:18 AM, Jean-Baptiste Queru 
wrote:
>
> >>> Can you please report this issue inhttp://b.android.com/? (a plain

> >>> copy-paste will do). > > >>> Thanks, > >>> JBQ >

> >>> On Sat, Feb 7, 2009 at 6:54 AM, Stefan  wrote: >
>  It appears that  ...
> >> romain...@android.com

> > >> Note: please don't send private questions to me, as I don't have time
> >> to provide private...

> Romain Guy > Android framework engineer
> romain...@android.com

> > Note: please don't send private questions to me, as I don't have time >
to provide private suppo...

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[android-developers] Solved Preferences Reset Problem

[Eric B]

A while ago, I posted (see links below) about a problem with my app.
Whenever the app was killed by the OS, either memory cleanup or device
restart, all the preferences were reset.  Since my app worked entirely
from those preferences, it made it pretty much useless.

I found out that persistent for SharedPreferences is not turned on by
default.  If you add the following attribute to the root element,
PreferenceScreen, of your preferences xml file, then it will turn
persistence on and your preferences will not get reset any more.

android:persistent="true"

I hope this helps some of you out there, as it was very frustrating
for me.

Thanks,
Eric

http://groups.google.com/group/android-developers/browse_frm/thread/a1f4cb597689374e
http://groups.google.com/group/android-developers/browse_frm/thread/afdecee0355fb700

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[android-developers] Re: Local communication with a service from another APK that runs in the same process

[Uri.Kanonov]

In case it would help, here is the relevant code:

The two classes (LocalServiceBinder and LocalService) used to bind to
the service and obtain a reference to it:

-
package localservice;

import android.os.Binder;

public abstract class LocalServiceBinder extends Binder{
public abstract LocalService getLocalService();
}

-

package localservice;

public interface LocalService{
public String getPid();
}

-

A sample activity in APK #1 that binds with the service and also
implements the ServiceConnection interface
-

package kanonov.t1;

import localservice.LocalService;
import localservice.LocalServiceBinder;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;

public class T1 extends Activity implements ServiceConnection{
public static final String TAG = "Test";

@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

Log.d(TAG, "T1 onCreate");
bindService(new Intent("kanonov.localservice"), this,
BIND_AUTO_CREATE);
}

@Override
public void onServiceConnected(ComponentName name, IBinder service){
Log.d(TAG, "T1 onServiceConnected " + 
android.os.Process.myPid());
if (service == null){
try{
LocalServiceBinder lsb = 
(LocalServiceBinder)service;
LocalService ls = lsb.getLocalService();
Log.i(TAG, "My PID is: " + 
android.os.Process.myPid());
Log.i(TAG, "LocalService Process' PID is: " + 
ls.getPid());
}catch(Exception e){
Log.e(TAG, "Error in connection: " + 
e.getMessage(), e);
}
unbindService(this);
}else{
Log.e(TAG, "Binder is null!");
}

}
@Override
public void onServiceDisconnected(ComponentName name){}
}


The actual service in APK #2
-
package kanonov.t2;

import localservice.LocalService;
import localservice.LocalServiceBinder;
import android.app.Service;
import android.content.Intent;
import android.util.Log;

public class LS extends Service implements LocalService{
public static final String TAG = "Test";

@Override
public LocalServiceBinder onBind(Intent intent){
Log.d(TAG, "LocalService onBind " + android.os.Process.myPid());
return new LocalServiceBinder(){

@Override
public LocalService getLocalService(){
Log.d(TAG, "T2LS getLocalService");
return LS.this;
}

};

}

@Override
public String getPid(){
Log.d(TAG, "LocalService getPid");
return "" + android.os.Process.myPid();
}
}


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[android-developers] Re: Please Help! Service seems to sleep when phone is inactive

[clarkbriancarl]

Thanks for the reply. I've been reading and tweaking for over a week
trying to figure this out. Thats a good idea to use the Alarm Manager.
I think I will give that a try. I would still like to hear from a more
experienced devloper or a google engineer if this is the way an
Android service is supposed to behave.

On Feb 7, 3:29 pm, Greg White  wrote:
> On Sat, Feb 7, 2009 at 11:50 AM, Brian  wrote:
> > While testing the service, I have come across something interesting.
>
> > My problem is that the service appears to sleep or pause for a few
> > hours, run a short time, and then sleep for a few more hours, then run
> > a short time, etc when the phone has become inactive.
>
> I'm interested to hear what others say.  My experience mirrors yours.  I
> believe the phone is going to sleep and freezing the service.
>
> What I did was to use the AlarmManager to wake the service to do its work.
> While it was working, I used a wake lock to keep the phone from sleeping.
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[android-developers] App source from Git not compatible with current SDK?

[Rich]

I loaded up the Alarm Clock app from the current git (http://
android.git.kernel.org/?p=platform/packages/apps/
AlarmClock.git;a=snapshot;h=c8208f9f6ff76479da3b1eb0cedbd5500b8be1f4;sf=tgz)
into eclipse, and there are a lot of errors, unfound imports and
things like that.

Are the 'cupcake' versions of the /apps/ incompatible with the current
SDK? Should I bother trying to fix them?

Thanks!
Rich
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[android-developers] Re: Help debugging frequent garbage collection

[snctln]

Thank you very much, that was exactly what I was looking for... I had
always just used the eclipse plugin and never thought to try the stand
alone tool.  DDMS was very helpful and I was pleasantly surprised to
see that it even gave me the line number of my code where the
allocations were happening.

It turns out that I was building the top message string (Level # Lives
# Score #) every time the onDraw was called and that was doing a lot
of allocating char buffers.  Now I just build the string whenever the
data has changed, so once ever few seconds rather than 30+ times a
second.  I have not had a single garbage collection related stutter
since then probably because I am calling System.gc() whenever the
state of the game has changed (lost a life, end of game, advancing
level)

Thanks again, I am sure the users of my game will greatly appreciate
this bug fix

---Sean Catlin
www.snctln.com

On Feb 7, 1:27 pm, Romain Guy  wrote:
> Hi,
>
> It's pretty easy. Launch the tool called DDMS (the standalone one, not
> the one that comes with the Eclipse plugin.) Inside the tool, go to
> the Allocations Tracker tab. Click Start Tracking, use your app a
> little, then click Get Allocations. You will get a list of all
> allocations with, for each one of them, the stack trace to the
> allocation.
>
>
>
> On Sat, Feb 7, 2009 at 9:48 AM, snctln  wrote:
>
> > I am having an issue with my latest game (available in the market as
> > "BreakTheBlocks Lite")
>
> > This is a simple "arcade" style game, It started with a thread
> > controlling the game loop but now I just have a runnable that performs
> > the game loop functions and then posts back to itself.
>
> > In its original release there was a noticeable "stutter" in the game
> > every other second or so.  After a great deal of time debugging I
> > finally realized that every time the stutter happened LogCat showed
> > that garbage collection was taking place.
>
> > I went through my code and got rid of creating as many "temporary"
> > objects as possible.  After that the stutter went from happening every
> > 1.5 seconds to happening every 13-16 seconds.  This is much better,
> > but I can't seem to reduce the time any further.
>
> > According to LogCat the garbage collector is still running on my game
> > thread every 15 seconds I see the message "GC freed 19833 objects /
> > 878848 bytes in 131ms"... and since my game runs at about 30 frames a
> > second a 131 millisecond stutter causes about 4 frames to be dropped
> > which is an annoyance for me and the users of my game.
>
> > So my question is What can I do to further debug this problem?  I have
> > always known garbage collection existed but I have never bothered to
> > care about it until now because it is finally affecting the
> > performance of my app (and I am a C++ programmer by day so I usually
> > forget about the GC)
>
> > Is there any way to see what the garbage collector is collecting?  Is
> > there any way that I can tweak the behavior of the GC for my app?
>
> > Sorry for the long winded question and thank you in advance for any
> > responses
>
> --
> Romain Guy
> Android framework engineer
> romain...@android.com
>
> Note: please don't send private questions to me, as I don't have time
> to provide private support.  All such questions should be posted on
> public forums, where I and others can see and answer them
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[android-developers] Re: SlidingDrawer not working with RC33

[Stefan]

After digging a bit around in the source code, it looks like the
namespace used for the attributes of the "internal" widgets has
changed in RC33 from xmlns:android="http://schemas.android.com/apk/res/
android" to some other namespace
(probably something like http://schemas.android.com/apk/res/android.intenral
??) and that caused the SlidingDrawer to not
find its attributes.

Well... one should never rely on internal classes, but... the
SlidingDrawer is actually so useful...
I am glad it will make it as an officially supported class.


On Feb 7, 4:34 pm, Romain Guy  wrote:
> Even worse, SlidingDrawer will move to android.widget in Cupcake :))
> (And thus become public API.)
>
>
>
> On Sat, Feb 7, 2009 at 12:14 PM, Jean-Baptiste Queru  wrote:
>
> > Oh, ah, I hadn't seen that it was android.INTERNAL.SlidingDrawer
> > (emphasis mine).
>
> > There's no guarantee of compatibility of private APIs between versions.
>
> > JBQ
>
> > On Sat, Feb 7, 2009 at 11:28 AM, Romain Guy  wrote:
>
> >> No, SlidingDrawer is a private widget. It is not supported.
>
> >> On Sat, Feb 7, 2009 at 7:18 AM, Jean-Baptiste Queru  
> >> wrote:
>
> >>> Can you please report this issue inhttp://b.android.com/? (a plain
> >>> copy-paste will do).
>
> >>> Thanks,
> >>> JBQ
>
> >>> On Sat, Feb 7, 2009 at 6:54 AM, Stefan  wrote:
>
>  It appears that  android.internal.widget.SlidingDrawer widget had
>  changed between RC30 and RC33.
>
>  On RC33 it fails to inflate the layout XML complaining  that: "The
>  handle attribute is required and must refer to a valid child"
>
>  This is the XML I am trying to inflate:
>
>                   android:id="@+id/drawer" 
>  android:layout_width="fill_parent"
>                 android:layout_height="wrap_content"
>                 android:topOffset="5px"
>         android:bottomOffset="7px"
>                 android:handle="@+id/playlistHeader"
>                 android:content="@+id/playList">
>
>                                          android:focusable="true"
>                         android:clickable="true"
>                         android:scaleType="center"
>                         android:src="@drawable/ic_mp_current_playlist_btn"
>                         android:layout_height="56dip"
>                         android:layout_width="fill_parent" />
>
>                                          android:id="@+id/playList"
>                         android:layout_width="fill_parent"
>                         android:layout_height="fill_parent"
>                         android:background="@color/grid_dark_background"/>
>
>  
>
>  The XML above has both the "content" and the "handle" attribute and
>  worked fine in RC30?
>  Does anyone know what has changed and how to fix it?
>
>  Stefan
>
> >>> --
> >>> Jean-Baptiste M. "JBQ" Queru
> >>> Android Engineer, Google.
>
> >> --
> >> Romain Guy
> >> Android framework engineer
> >> romain...@android.com
>
> >> Note: please don't send private questions to me, as I don't have time
> >> to provide private support.  All such questions should be posted on
> >> public forums, where I and others can see and answer them
>
> > --
> > Jean-Baptiste M. "JBQ" Queru
> > Android Engineer, Google.
>
> --
> Romain Guy
> Android framework engineer
> romain...@android.com
>
> Note: please don't send private questions to me, as I don't have time
> to provide private support.  All such questions should be posted on
> public forums, where I and others can see and answer them
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[android-developers] Re: SlidingDrawer not working with RC33

[Romain Guy]

Even worse, SlidingDrawer will move to android.widget in Cupcake :))
(And thus become public API.)

On Sat, Feb 7, 2009 at 12:14 PM, Jean-Baptiste Queru  wrote:
>
> Oh, ah, I hadn't seen that it was android.INTERNAL.SlidingDrawer
> (emphasis mine).
>
> There's no guarantee of compatibility of private APIs between versions.
>
> JBQ
>
> On Sat, Feb 7, 2009 at 11:28 AM, Romain Guy  wrote:
>>
>> No, SlidingDrawer is a private widget. It is not supported.
>>
>> On Sat, Feb 7, 2009 at 7:18 AM, Jean-Baptiste Queru  wrote:
>>>
>>> Can you please report this issue in http://b.android.com/ ? (a plain
>>> copy-paste will do).
>>>
>>> Thanks,
>>> JBQ
>>>
>>> On Sat, Feb 7, 2009 at 6:54 AM, Stefan  wrote:

 It appears that  android.internal.widget.SlidingDrawer widget had
 changed between RC30 and RC33.

 On RC33 it fails to inflate the layout XML complaining  that: "The
 handle attribute is required and must refer to a valid child"

 This is the XML I am trying to inflate:

 >>>android:id="@+id/drawer" android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:topOffset="5px"
android:bottomOffset="7px"
android:handle="@+id/playlistHeader"
android:content="@+id/playList">

>>>android:focusable="true"
android:clickable="true"
android:scaleType="center"
android:src="@drawable/ic_mp_current_playlist_btn"
android:layout_height="56dip"
android:layout_width="fill_parent" />

>>>android:id="@+id/playList"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/grid_dark_background"/>

 

 The XML above has both the "content" and the "handle" attribute and
 worked fine in RC30?
 Does anyone know what has changed and how to fix it?

 Stefan
 >

>>>
>>>
>>>
>>> --
>>> Jean-Baptiste M. "JBQ" Queru
>>> Android Engineer, Google.
>>>
>>> >
>>>
>>
>>
>>
>> --
>> Romain Guy
>> Android framework engineer
>> romain...@android.com
>>
>> Note: please don't send private questions to me, as I don't have time
>> to provide private support.  All such questions should be posted on
>> public forums, where I and others can see and answer them
>>
>> >
>>
>
>
>
> --
> Jean-Baptiste M. "JBQ" Queru
> Android Engineer, Google.
>
> >
>



-- 
Romain Guy
Android framework engineer
romain...@android.com

Note: please don't send private questions to me, as I don't have time
to provide private support.  All such questions should be posted on
public forums, where I and others can see and answer them

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[android-developers] Re: Please Help! Service seems to sleep when phone is inactive

[Greg White]

On Sat, Feb 7, 2009 at 11:50 AM, Brian  wrote:

> While testing the service, I have come across something interesting.
>
> My problem is that the service appears to sleep or pause for a few
> hours, run a short time, and then sleep for a few more hours, then run
> a short time, etc when the phone has become inactive.
>

I'm interested to hear what others say.  My experience mirrors yours.  I
believe the phone is going to sleep and freezing the service.

What I did was to use the AlarmManager to wake the service to do its work.
While it was working, I used a wake lock to keep the phone from sleeping.

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[android-developers] Re: Making ListView stop on a finger press

[Gw1921]

Any one? It's just that the List View isn't receiving the touch events
for some reason (being consumed by the Button/TextView above),
although it still scrolls if I flick the finger. On a tap I need the
listview to receive the touch events so that the scroll is controlled.
Any ideas?

On Feb 7, 2:35 pm, Gw1921  wrote:
> Okay more on this - it seems my custom view for each row inside the
> list is grabbing the touch event and not passing it through to the
> list. I have set "setItemsCanFocus" on the ListView to True (as its
> required) and now I can't make the listview stop it's scrolling on a
> tap. It only stops when it stops scrolling eventually.
>
> Any idea how I can pass the touch back to its parent? I've tried
> returning "false" from a TouchListener as well but no luck
>
> On Feb 7, 11:56 am, Gw1921  wrote:
>
> > How can I make the ListView immediately stop scrolling on a finger
> > down event? It keeps scrolling if I give it a big swipe and doesn't
> > stop immediately if my finger is pressed down again. Any idea? Thanks
>
>
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[android-developers] sip ua in android

[bc]

i port a sip ua(osip) for android,it can work in android,but,how can i
warp this as a part of android phone,jast like gsm?

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[android-developers] Context.startService - The service does not stay running...

[Brian]

I rarely post to groups, because I can usually find the answer
somewhere on the web. So I apologize in advance if I have violated any
ettiquette. But this time I am truly stumped, and would appreciate any
help, insight, or suggestion from a more experienced Android
developer.

I've written a test service to understand how android implements a
service. I believe I understand the difference between
Context.startService and Context.bindService. If I am not mistaken,
Context.startService will tell android to keep the service running,
even after the Activity that started it has ended.

While testing the service, I have come across something unexpected.

The service appears to sleep or pause for a few hours, run a short
time, and then sleep for a few more hours, then run a short time, etc
when the phone has become inactive. In other words, when I am doing
things on the phone the service is doing what it is supposed to. But
after I have finished doing things on the phone and the screen goes
blank the service appears to sleep or pause. I don't know if I have
implemented the service wrong or if this is how Android services work.

The test service I have written simply sets a postDelayed handler to
increment++ a variable in the Runnable every minute, and then write
the value of that variable and a timestamp to a file (log.txt) on the
sd card. This how I know that the service appears to sleep. Because
there are gaps in the timstamp that correspond to when the phone was
inactive. If the service were truly active the whole time, there
should be a line item in the log.txt file every minute.

>From the log.txt file below you can see that over an eleven hour
period there are only 36 line items with time stamps ranging from
10:27 PM through 9:23 AM. If the service was running and active the
whole time there should be over 600 lines in the text file. The phone
was on AC power the whole time so Android should not have tried to
stop services due to power issues. The phone was not used or touched
from about midnight to 9 the next morning, so there should not have
been a low resource clean up.

I have spent several days looking for an answer and everything I can
find seems to validate that when a service is started and not bound,
it will stay running (http://code.google.com/android/reference/android/
app/Service.html). However, it appears it does not. Unless I have
completely missed the ball on this.

I have included the service.java and activity.java as well as the log
file. Any help/ideas would be greatly appreciated. I am truly
stumped...




Here is the log.txt file

02/05/2009 10:27:02 PM: Service Created.
02/05/2009 10:27:02 PM: Service Started.
02/05/2009 10:27:07 PM: iCount = 1
02/05/2009 10:28:07 PM: iCount = 2
02/05/2009 10:29:07 PM: iCount = 3
02/05/2009 11:20:49 PM: iCount = 4
02/05/2009 11:31:11 PM: iCount = 5
02/05/2009 11:32:11 PM: iCount = 6
02/05/2009 11:33:16 PM: iCount = 7
02/05/2009 11:34:16 PM: iCount = 8
02/05/2009 11:35:16 PM: iCount = 9
02/05/2009 11:36:16 PM: iCount = 10
02/05/2009 11:37:16 PM: iCount = 11
02/05/2009 11:38:16 PM: iCount = 12
02/05/2009 11:39:16 PM: iCount = 13
02/05/2009 11:40:16 PM: iCount = 14
02/05/2009 11:41:16 PM: iCount = 15
02/05/2009 11:42:16 PM: iCount = 16
02/05/2009 11:43:17 PM: iCount = 17
02/05/2009 11:44:17 PM: iCount = 18
02/05/2009 11:45:17 PM: iCount = 19
02/05/2009 11:46:17 PM: iCount = 20
02/05/2009 11:47:17 PM: iCount = 21
02/05/2009 11:48:17 PM: iCount = 22
02/05/2009 11:55:58 PM: iCount = 23
02/06/2009 01:06:56 AM: iCount = 24
02/06/2009 03:07:41 AM: iCount = 25
02/06/2009 04:38:32 AM: iCount = 26
02/06/2009 06:54:49 AM: iCount = 27
02/06/2009 08:03:14 AM: iCount = 28
02/06/2009 08:57:50 AM: iCount = 29
02/06/2009 08:58:50 AM: iCount = 30
02/06/2009 08:59:50 AM: iCount = 31
02/06/2009 09:05:24 AM: iCount = 32
02/06/2009 09:06:24 AM: iCount = 33
02/06/2009 09:07:24 AM: iCount = 34
02/06/2009 09:08:24 AM: iCount = 35
02/06/2009 09:23:09 AM: iCount = 36
02/06/2009 09:23:17 AM: Service Destroyed.







Here is the service java file:

Java:

package bSoft.bService;


import java.io.FileWriter;
import java.text.SimpleDateFormat;
import java.util.Calendar;

import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.Handler;
import android.os.IBinder;

public class bService extends Service
{
 private long _iCount = 0;


 private Handler objHandler = new Handler();



 @Override
 public void onCreate()
 {
  super.onCreate();

 SaveStatusData("Service Created.\n\n");
 }

@Override
public void onDestroy()
{
 super.onDestroy();

 objHandler.removeCallbacks(doMonitoringTasks);

 SaveStatusData("Service Destroyed.\n\n");
}


 @Override
 public void onStart(Intent intent, int startId)
 {
 SaveStatusData("Service Started.\n\n");

  objHandler.postDelayed(doMonitoringTasks, 5000);
 }

 @Override
 public IBinder onBind(Intent intent)
 

[android-developers] Re: Android Developers in Atlanta, GA

[Alton]

Hi there,

I'm in Marietta and would be interested.

Alton

On Jan 30, 9:10 am, BarbieDahl  wrote:
> Are there any developers inAtlanta, GA that would like to meet and
> discuss android app ideas as well as learn new and advanced android
> topics? I would like to network with some other developers in and
> aroundAtlanta, GA for help, mentoring and support.  Please reply if
> you are interested.

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[android-developers] Re: Can we start a new activity or at least display a Toast in TimerTask.run()?

[Brian]

>From my experience, timers are a finicky thing in android. I have
always had much better luck using a postDelayed to a handler.

public class MyClass extends Activity
{
private Handler objHandler = new Handler();

public void MyFunction()
{
//Or put this in your onCreate()
objHandler.postDelayed(doTasks, 6);
}


private Runnable doTasks = new Runnable()
{
public void run()
{
Context context = getApplicationContext();

Toast toast = Toast.makeText(context, strMsg, 100);

toast.show();

//And if you want it to fire again do this, otherwise 
delete this
line
objHandler.postDelayed(doTasks, 6);
}
};



//And you can destroy the call back with a user interaction if you
want
private void SomeUserFunction()
{
objHandler.removeCallbacks(doTasks);
}
}

On Feb 6, 8:38 pm, Xin Zhao  wrote:
> I tried to deploy a timer and switch the user to another dialog for setting
> if times out. But the dialog just cannot display. No error/exception
> reported. Vibration works fine though.
>
> What's wrong?
>
> Code:
>
>   private void setAutoPhonecardSelector(int interval) {
>     Date timeToRun = new Date(System.currentTimeMillis() + interval);
>     Timer timer = new Timer();
>
>     mAutoPhonecardSelector = new TimerTask() {
>       @Override
>       public void run() {
>         mVibrator.vibrate(100);
>         Toast.makeText(PhoneCardSelector.this, "test",
> Toast.LENGTH_LONG).show();
>       }
>     };
>
>     timer.schedule(mAutoPhonecardSelector, timeToRun);
>   }
>
> Please help!
>
> Thanks in advance!

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[android-developers] Local communication with a service from another APK that runs in the same process

[Uri.Kanonov]

Hello,

In my application I have a need to separate components into two
different APKs.
One component (the first APK) needs to communicate with a service
provided by the other component (the second APK).

I was hoping I could use the shared-user-id mechanism, have both
applications run in the same process and by so avoid AIDL using the
same scheme as presented in the LocalService example in the ApiDemos.
The idea was to declare the following two classesin APK #1:
"LocalService" interface: would represent the service
"LocalServiceBinder": would have a "getService()" method that would
return a "LocalService" object
The two classes would be exported into a JAR and added to APK #2's
build path.

The actual service in the APK #2 would implement "LocalService" and
it's "onBind()" method would return an instance of
"LocalServiceBinder" whereas "getService()" would be overriden to
return a reference to the service itself.

I tried implementing it but failed due to a class-cast exception being
thrown in "onServiceConnected" when attempting to cast the Binder
returned by the Service to LocalServiceBinder. I gave up on the idea
and implemented the communication using AIDL.

As a result my application took quite a performance hit, primarily due
to the "serialization" and "deserialization" of the data being sent to
Service.
So now I'm again trying to implement the "local-communication" scheme.
However, when I tried to reconstruct the aforementioned implementation
the Binder received in "onServiceConnected" is null (even though I'm
definitely not returning null in the service's "onBind" method).

Bottom line is I would like to know if whether I'm attempting to do is
even possible using the Android framework, and if so how to do it. If
not, any suggestions on how to minimize the performance hit.

Thanks in advance!

Best regards,
Uri Kanonov




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[android-developers] Re: Reusing the +/- number spinner from TimePickerDialog?

[$§Kalle§$]

"setCurrent" to set values works:
---
  try {
  Method m = c.getMethod("setCurrent", int.class);
  m.invoke(o, mDauer%60);
  } catch (Exception e) {
Log.e("", e.getMessage());
  }
---

But how to get values? Any idea?

On 4 Feb., 18:43, solomonk  wrote:
> No need to clone it if you really don't want to. You can use it in XML
> layot like
>
>    android:id="@+id/picker"
>   android:layout_width="wrap_content"
>   android:layout_height="wrap_content"/>
>
> and then use reflection to set settings:
>
>         Object o = findViewById(R.id.picker);
>         Class c = o.getClass();
>         try {
>                 Method m = c.getMethod("setRange", int.class, int.class);
>                 m.invoke(o, 0, 9);
>         } catch (Exception e) {
>                 Log.e("", e.getMessage());
>         }
>
> It sucks but it works :)
>
> On 28 янв, 20:17, Mark Murphy  wrote:
>
> > Will wrote:
> > > Setting a breakpoint when a DatePickerDialog is open on the emulator's
> > > screen shows a com.android.internal.widget.NumberPicker for month,
> > > year, and date (1numberpickereach for a total of three
> > > NumberPickers).  It looks like the same widget used for a timepicker;
> > > based on the name I'm sure it is.
>
> > > Importing android.internal.widget doesn't work.  It was worth a shot.
>
> > The source to it is probably available on source.android.com. Clone your
> > own until they open that one up in the SDK.
>
> > --
> > Mark Murphy (a Commons Guy)http://commonsware.com
> > _The Busy Coder's Guide to Android Development_ Version 2.0 Available!

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[android-developers] Re: Central service scheduler

[Christoph Studer]

Sweet! Thanks for the reply and looking forward to that API.

Christoph


On Sat, Feb 7, 2009 at 8:57 PM, Jean-Baptiste Queru  wrote:
>
> There is something like that in cupcake. I forgot the exact API name, sorry.
>
> JBQ
>
> On Sat, Feb 7, 2009 at 10:19 AM, Christoph Studer  wrote:
>>
>> Would it make sense to create a central scheduler for services that
>> need to run periodically?
>>
>> There are a lot of application that want to run at periodic intervals,
>> require network access and need to keep the device awake during their
>> work. Instead of each app having to use an AlarmManager, a WakeLock
>> and its own network availability checking / auto-retry, wouldn't it
>> make sense to provide an API that would do that work?
>>
>> Also, if you have a lot of apps on your device with background checks,
>> they run on different schedules and wake the device up more frequently
>> than if they'd run on a synchronized schedule.
>>
>> Ideally, I'd imagine this service scheduler to provide the following:
>> * Application can register and unregister service intents for a
>> certain schedule.
>> * Provide schedules an app can register for. These could be constant
>> such as a frequent schedule (every 10mins) and a less frequent one
>> (every 60mins), or maybe user configurable.
>> * Apps can specify a network filter, i.e. only run when connected via
>> wifi, 3g, 2g...
>> * Services would signal to the scheduler when they're done, possibly
>> with an error code such that the scheduler could retry automatically
>> out of the ordinary schedule.
>> * Provide a UI for users to change schedules, unregister services, etc.
>> * Define and require permissions for schedules such that users could
>> see how much "battery drainage" an app is causing.
>>
>> I really think this would be quite useful for developers and users
>> likewise. This central service scheduler could be part of the
>> platform/SDK or it could be a user APK, much like some of the OI
>> components already available.
>>
>> Any thoughts?
>>
>> Christoph
>>
>> P.S.: Not sure whether android-developers is the right mailinglist,
>> but it does not quite fit into any of the others, either.
>>
>> >
>>
>
>
>
> --
> Jean-Baptiste M. "JBQ" Queru
> Android Engineer, Google.
>
> >
>

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[android-developers] Re: native C++ SIP stack on Android

[bc]

i port a sip stack,and use jni,it can work now,but,how can i let phone
use the stack,just like gsm?

On Jan 9, 1:08 am, "David Turner"  wrote:
> first, you cannot have C++ code in the kernel.
>
> however, depending on how your stack is designed, you may be able to use it
> from Java through JNI
>
> given that you give absolutely no information about your stack's interface,
> it's really difficult to answer your question
>
> On Thu, Jan 8, 2009 at 5:57 PM, pinguin  wrote:
>
> > Can i port SIP stack written in C++ to android and let it running as
> > service in kernel ?
> > and the GUI will communicate with SIP stack through JNI ?

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[android-developers] Problem with sound on Notifications on Emulator

[pperotti]

Hi Everyone,

The reason Im posting this question is because I cannot make a
notification to reproduce a sound or a vibration sequence.

For the case of the vibration I have permissions properly set and
logcat do not show log message indicating a problem.

For the case of sound, I have an mp3 saved in the res/raw folder and I
always got an error saying: error loading sound in logcat.

I add an snipplet with the code I´m using. Probably anyone can let me
know if I am making a newbie mistake.

Notification note=new Notification(R.drawable.red_ball, "Status
message!", System.currentTimeMillis());

note.vibrate = new long[] {100,200,150};

Uri uri = Uri.parse("android.resource://com.pp/" +
R.raw.test_cbr);
note.sound = uri;

PendingIntent i=PendingIntent.getActivity(this, 0,
new Intent(this, NotifyMessage.class), 0);

note.setLatestEventInfo(this, "Notification Title", "This is the
notification message", i);

mgr.notify(NOTIFY_ME_ID, note);

Where com.pp is the package of my application.

I will be more than glad if someone can be me a hint or a working
snipplet about reproducing sound, vibration and lights. There is
actually very few documentation about how to make notifications work
properly.

Thanks in advance, Pablo

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[android-developers] access to internal telephony

[Gero Mudersbach]

Hello,

are there plans to make com.android.internal.telephony available public? As 
far as I understand it is currently not possible to write e.g. an answering 
machine "within" the current framework (standard sdk), because direct access 
to "acceptCall" and hangup methods is missing.

Best
G. Mudersbach


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[android-developers] XML parsing problem (stops at non-utf characters)

[John Doe]

I am having difficulty while parsing some Turkish sites.Here is the
part of the code. The problem is when the title contains some non-UTF
characters like ç,ü,ı,ö,ğ it stops parsing and doesnt read the rest.
For example if the title is "Ebru Gündeş askere gitti" it only reads
until "ş" which is "Ebru G". Or when reading "Serdar Ortaç sünnet
oldu" it only read "Serdar Or"
How can I fix the problem? Any suggestions???

NodeList nl=docEle.getElementsByTagName("item");
if(nl!=null && nl.getLength()>0){
for(int i=0;ihttp://groups.google.com/group/android-developers?hl=en
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[android-developers] android.app.Service question

[clarkbriancarl]

The android.content.Context api exposes two methods for starting a
service. startService and bindService. The api docs state that when a
service is started with Context.startService, that requires the
service to remain running until stopService(Intent) is called,
regardless of whether any clients are connected to it.

I have made a test service that uses a postDelayed event. The Runnable
for the postDelayed increments++ a counter and writes that counter and
a timestamp to a text file every minute.

However, when the phone becomes inactive (screen times out) the
service seems to pause for a few hours, run a short while, then pause
for a few hours, then run a short while, and on and on...

Here is the log file. The service ran intermittently for 11 hours. I
can post the Service.java and Activity.java if requested. I am leaving
it out for berevity.

02/05/2009 10:27:07 PM: iCount = 1
02/05/2009 10:28:07 PM: iCount = 2
02/05/2009 10:29:07 PM: iCount = 3
02/05/2009 11:20:49 PM: iCount = 4
02/05/2009 11:31:11 PM: iCount = 5
02/05/2009 11:32:11 PM: iCount = 6
02/05/2009 11:33:16 PM: iCount = 7
02/05/2009 11:34:16 PM: iCount = 8
02/05/2009 11:35:16 PM: iCount = 9
02/05/2009 11:36:16 PM: iCount = 10
02/05/2009 11:37:16 PM: iCount = 11
02/05/2009 11:38:16 PM: iCount = 12
02/05/2009 11:39:16 PM: iCount = 13
02/05/2009 11:40:16 PM: iCount = 14
02/05/2009 11:41:16 PM: iCount = 15
02/05/2009 11:42:16 PM: iCount = 16
02/05/2009 11:43:17 PM: iCount = 17
02/05/2009 11:44:17 PM: iCount = 18
02/05/2009 11:45:17 PM: iCount = 19
02/05/2009 11:46:17 PM: iCount = 20
02/05/2009 11:47:17 PM: iCount = 21
02/05/2009 11:48:17 PM: iCount = 22
02/05/2009 11:55:58 PM: iCount = 23
02/06/2009 01:06:56 AM: iCount = 24
02/06/2009 03:07:41 AM: iCount = 25
02/06/2009 04:38:32 AM: iCount = 26
02/06/2009 06:54:49 AM: iCount = 27
02/06/2009 08:03:14 AM: iCount = 28
02/06/2009 08:57:50 AM: iCount = 29
02/06/2009 08:58:50 AM: iCount = 30
02/06/2009 08:59:50 AM: iCount = 31
02/06/2009 09:05:24 AM: iCount = 32
02/06/2009 09:06:24 AM: iCount = 33
02/06/2009 09:07:24 AM: iCount = 34
02/06/2009 09:08:24 AM: iCount = 35
02/06/2009 09:23:09 AM: iCount = 36
02/06/2009 09:23:17 AM: Service Destroyed.

My questions are:

1) Is this what is supposed to happen for an Android service?
2) If so, What should one do to get an application to run a specific
task at user-specified intervals in the background. Like retrieving
data from a web service...

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[android-developers] WPA2 Enterprise Support

[Holkre]

Hello Guys,
is there a way to alter the wpa_supplicant on an non rooted G1 with
the actual firmware RC33 which is installed on the german devices, I
will need to have access to WPA2 Enterprise Networks with my G1 ,
and i actually could not get root access with the current release of
Android on the Phone.
So my question is , is it possible to write a Programm which can build
in the possibility to connect to WPA2 Enterpise networks on a G1
without root access, and when there is one how could this be done?

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[android-developers] Please Help! Service seems to sleep when phone is inactive

[Brian]

Hi everybody,

I'm new to android, but I am picking up speed quickly. I've spent the
last several years writing Windows services. So I am not a complete
newbie in this area.

I've written a test service to understand how android implements a
service. I believe I understand the difference between
Context.startService and Context.bindService. If I am not mistaken,
Context.startService will tell android to keep this service running,
even after the Activity that started it has ended.

While testing the service, I have come across something interesting.

My problem is that the service appears to sleep or pause for a few
hours, run a short time, and then sleep for a few more hours, then run
a short time, etc when the phone has become inactive. In other words,
when I am doing things on the phone the service is doing what is is
supposed to. But after I have finished doing things on the phone and
the screen goes blank the service appears to sleep or pause. I don't
know if I have implemented the service wrong or if this is how Android
services work.

The test service I have written simply sets a postDelayed handler to
increment++ a variable in the Runnable every minute, and then write
the value of that variable and a timestamp to a file (log.txt) on the
sd card. This how I know that the service appears to sleep. Because
there are gaps in the timestamp that correspond to when the phone was
inactive. If the service were truly active the whole time, there
should be a line item in the log.txt file every minute.

>From the log.txt file below you can see that over an eleven hour
period there are only 36 line items with time stamps ranging from
10:27 PM through 9:23 AM. If the service was running and active the
whole time there should be over 600 lines in the text file. The phone
was on AC power the whole time so Android should not have tried to
stop services due to power issues. The phone was not used or touched
from about midnight to 9 the next morning, so there should not have
been a low resource clean up.

I have spent several days looking for an answer and everything I can
find seems to validate that when a service is started and not bound,
it will stay running (http://code.google.com/android/reference/android/
app/Service.html). However, it appears it does not. Unless I have
completely missed the ball on this.


I have included the service.java and activity.java as well as the log
file. Any help/ideas would be greatly appreciated. I am truly
stumped...




Here is a sample log.txt

02/05/2009 10:27:02 PM: Service Created.
02/05/2009 10:27:02 PM: Service Started.
02/05/2009 10:27:07 PM: iCount = 1
02/05/2009 10:28:07 PM: iCount = 2
02/05/2009 10:29:07 PM: iCount = 3
02/05/2009 11:20:49 PM: iCount = 4
02/05/2009 11:31:11 PM: iCount = 5
02/05/2009 11:32:11 PM: iCount = 6
02/05/2009 11:33:16 PM: iCount = 7
02/05/2009 11:34:16 PM: iCount = 8
02/05/2009 11:35:16 PM: iCount = 9
02/05/2009 11:36:16 PM: iCount = 10
02/05/2009 11:37:16 PM: iCount = 11
02/05/2009 11:38:16 PM: iCount = 12
02/05/2009 11:39:16 PM: iCount = 13
02/05/2009 11:40:16 PM: iCount = 14
02/05/2009 11:41:16 PM: iCount = 15
02/05/2009 11:42:16 PM: iCount = 16
02/05/2009 11:43:17 PM: iCount = 17
02/05/2009 11:44:17 PM: iCount = 18
02/05/2009 11:45:17 PM: iCount = 19
02/05/2009 11:46:17 PM: iCount = 20
02/05/2009 11:47:17 PM: iCount = 21
02/05/2009 11:48:17 PM: iCount = 22
02/05/2009 11:55:58 PM: iCount = 23
02/06/2009 01:06:56 AM: iCount = 24
02/06/2009 03:07:41 AM: iCount = 25
02/06/2009 04:38:32 AM: iCount = 26
02/06/2009 06:54:49 AM: iCount = 27
02/06/2009 08:03:14 AM: iCount = 28
02/06/2009 08:57:50 AM: iCount = 29
02/06/2009 08:58:50 AM: iCount = 30
02/06/2009 08:59:50 AM: iCount = 31
02/06/2009 09:05:24 AM: iCount = 32
02/06/2009 09:06:24 AM: iCount = 33
02/06/2009 09:07:24 AM: iCount = 34
02/06/2009 09:08:24 AM: iCount = 35
02/06/2009 09:23:09 AM: iCount = 36
02/06/2009 09:23:17 AM: Service Destroyed.







Here is the service java file:

Java:

package bSoft.bService;


import java.io.FileWriter;
import java.text.SimpleDateFormat;
import java.util.Calendar;

import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.Handler;
import android.os.IBinder;

public class bService extends Service
{
 private long _iCount = 0;


 private Handler objHandler = new Handler();



 @Override
 public void onCreate()
 {
  super.onCreate();

 SaveStatusData("Service Created.\n\n");
 }

@Override
public void onDestroy()
{
 super.onDestroy();

 objHandler.removeCallbacks(doMonitoringTasks);

 SaveStatusData("Service Destroyed.\n\n");
}


 @Override
 public void onStart(Intent intent, int startId)
 {
 SaveStatusData("Service Started.\n\n");

  objHandler.postDelayed(doMonitoringTasks, 5000);
 }

 @Override
 public IBinder onBind(Intent intent)
 {
  return binder;
 }


 private final IBinder binder = new MyBi

[android-developers] Local communication with a service from another APK that runs in the same process

[Uri.Kanonov]

Hello,

In my application I have a need to separate components into two
different APKs.
One component (the first APK) needs to communicate with a service
provided by the other component (the second APK).

I was hoping I could use the shared-user-id mechanism, have both
applications run in the same process and by so avoid AIDL using the
same scheme as presented in the LocalService example in the ApiDemos.
The idea was to declare the following two classesin APK #1:
"LocalService" interface: would represent the service
"LocalServiceBinder": would have a "getService()" method that would
return a "LocalService" object
The two classes would be exported into a JAR and added to APK #2's
build path.

The actual service in the APK #2 would implement "LocalService" and
it's "onBind()" method would return an instance of
"LocalServiceBinder" whereas "getService()" would be overriden to
return a reference to the service itself.

I tried implementing it but failed due to a class-cast exception being
thrown in "onServiceConnected" when attempting to cast the Binder
returned by the Service to LocalServiceBinder. I gave up on the idea
and implemented the communication using AIDL.

As a result my application took quite a performance hit, primarily due
to the "serialization" and "deserialization" of the data being sent to
Service.
So now I'm again trying to implement the "local-communication" scheme.
However, when I tried to reconstruct the aforementioned implementation
the Binder received in "onServiceConnected" is null (even though I'm
definitely not returning null in the service's "onBind" method).

Bottom line is I would like to know if whether I'm attempting to do is
even possible using the Android framework, and if so how to do it. If
not, any suggestions on how to minimize the performance hit.

Thanks in advance!

Best regards,
Uri Kanonov

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[android-developers] Loading Partial Subset of a Bitmap

[Brendan]

So I have a huge image (2000 x 2000) that is way too big for the
Android VM to load in (there's a 16 MB limit per application). That's
fine with me, as I only want to load in one screen size (320 x 480) at
a time, which Android should more than be able to handle. The problem
is, how do you load in just one piece of a bitmap? I've tried the
following:

Bitmap bmp1 = BitmapFactory.decodeResource(res, R.drawable.image);
Bitmap bmp2 = Bitmap.createBitmap(bmp1, 0, 0, 320, 480);

But of course the loading is really done in that first line, so the VM
crashes.

I also tried using BitmapFactory.Options and specifying an outWidth
and outHeight, but those just scale the image rather than translate/
crop it. Something along the lines of those options would be really
nice though.

Any ideas?
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[android-developers] Re: WebView responding to touch events

[Mark Nuetzmann]

Sergey,
I ended up doing basically what you posted but only for the
ACTION_DOWN as that seemed to handle it.


Fred,
I tried adding an OnClickListener but never got any callbacks.  I
assume that the WebView is designed to handle this internally and
expects you to use the WebViewClient.shouldOverrideUrlLoading() to
respond to the clicks.  As to whether it happens in the emulator I am
not sure.  I learned a long time ago with WM not to trust emulators so
I only debug on-device...


Thanks for the comments guys!
Mark

On Feb 7, 11:28 am, Sergey Ten  wrote:
> Mark,
>
> I think I had this problem myself and could solve it by using the following
> code:
>
>        webView.setOnTouchListener(new View.OnTouchListener() {
>            public boolean onTouch(View v, MotionEvent event) {
>                switch (event.getAction()) {
>                    case MotionEvent.ACTION_DOWN:
>                    case MotionEvent.ACTION_UP:
>                        if (!v.hasFocus()) {
>                            v.requestFocus();
>                        }
>                        break;
>                }
>                return false;
>            }
>        });
>
> Hope this would help,
> Sergey
>
> On Sat, Feb 7, 2009 at 12:07 AM, Mariano Kamp wrote:
>
> > Mark, maybe you should post some code?
>
> > On Thu, Feb 5, 2009 at 4:36 PM, Mark Nuetzmann 
> > wrote:
>
> >> I have an Activity that has a WebView that contains some simple html
> >> that allows me to display a Terms & Conditions link that if touched or
> >> clicked calls another activity.  My problem is unless the link in the
> >> WebView has focus (ie, the text is wrapped with that little orange
> >> focus) I cannot touch the link and have it work.  If any other view on
> >> the activity has focus, touching the WebView with the link does
> >> nothing.  The other Views that had focus loose focus, but the WebView
> >> does not receive focus.  I have tried calling setFocusable(true) and
> >> setFocusableInTouchMode(true) but that does not do any good...
>
> >> I would really like to know what you have to do to get a WebView to
> >> respond to touch events without using the trackball to scroll to the
> >> view before touching it.
>
> >> thank you,
> >> Mark
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[android-developers] Re: SlidingDrawer not working with RC33

[Jean-Baptiste Queru]

Oh, ah, I hadn't seen that it was android.INTERNAL.SlidingDrawer
(emphasis mine).

There's no guarantee of compatibility of private APIs between versions.

JBQ

On Sat, Feb 7, 2009 at 11:28 AM, Romain Guy  wrote:
>
> No, SlidingDrawer is a private widget. It is not supported.
>
> On Sat, Feb 7, 2009 at 7:18 AM, Jean-Baptiste Queru  wrote:
>>
>> Can you please report this issue in http://b.android.com/ ? (a plain
>> copy-paste will do).
>>
>> Thanks,
>> JBQ
>>
>> On Sat, Feb 7, 2009 at 6:54 AM, Stefan  wrote:
>>>
>>> It appears that  android.internal.widget.SlidingDrawer widget had
>>> changed between RC30 and RC33.
>>>
>>> On RC33 it fails to inflate the layout XML complaining  that: "The
>>> handle attribute is required and must refer to a valid child"
>>>
>>> This is the XML I am trying to inflate:
>>>
>>> >>android:id="@+id/drawer" android:layout_width="fill_parent"
>>>android:layout_height="wrap_content"
>>>android:topOffset="5px"
>>>android:bottomOffset="7px"
>>>android:handle="@+id/playlistHeader"
>>>android:content="@+id/playList">
>>>
>>>>>android:focusable="true"
>>>android:clickable="true"
>>>android:scaleType="center"
>>>android:src="@drawable/ic_mp_current_playlist_btn"
>>>android:layout_height="56dip"
>>>android:layout_width="fill_parent" />
>>>
>>>>>android:id="@+id/playList"
>>>android:layout_width="fill_parent"
>>>android:layout_height="fill_parent"
>>>android:background="@color/grid_dark_background"/>
>>>
>>> 
>>>
>>> The XML above has both the "content" and the "handle" attribute and
>>> worked fine in RC30?
>>> Does anyone know what has changed and how to fix it?
>>>
>>> Stefan
>>> >
>>>
>>
>>
>>
>> --
>> Jean-Baptiste M. "JBQ" Queru
>> Android Engineer, Google.
>>
>> >
>>
>
>
>
> --
> Romain Guy
> Android framework engineer
> romain...@android.com
>
> Note: please don't send private questions to me, as I don't have time
> to provide private support.  All such questions should be posted on
> public forums, where I and others can see and answer them
>
> >
>



-- 
Jean-Baptiste M. "JBQ" Queru
Android Engineer, Google.

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[android-developers] Re: multiple tables in sqlite

[Mark Murphy]

intbt wrote:
> Hopefully some one will nmotice my 'obvious' mistake.
> 
> I have created 2 tables in the database (below). When I access table
> c, no problem. But when I attempt to access table s I get an error
> message that column name x (all names give the same error) does not
> exist. How can 1 table get created but not the other?

Have you looked at the actual database and seen what is in it? Perhaps
use sqlite3's .dump command to dump the schema and contents out, and
maybe that will help determine the source of the discrepancy.

-- 
Mark Murphy (a Commons Guy)
http://commonsware.com
_The Busy Coder's Guide to Android Development_ Version 2.0 Published!

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[android-developers] Re: Using bindView to Customize ListView

[Mark Murphy]

Nmix wrote:
> In all the examples I've found to manipulate each view in a ListView,
> the method always seems to be getView(). But these were never Adapters
> backed by a cursor. I decided to try bindView() within a
> SimpleCursorAdapter, and so far it works very nicely, especially with
> the cursor all set up for my use.
> 
> My question is, is this usage good practice, and could I run into a
> problem in future? My question may be dumb but I just couldn't find a
> good example code snippet that uses a cursor.

Cursors are a bit of a pain to set up, if you're trying to show a
complete example -- you need a database, etc.

But using newView()/bindView() should be just fine.

-- 
Mark Murphy (a Commons Guy)
http://commonsware.com
_The Busy Coder's Guide to Android Development_ Version 2.0 Published!

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[android-developers] Re: Central service scheduler

[Jean-Baptiste Queru]

There is something like that in cupcake. I forgot the exact API name, sorry.

JBQ

On Sat, Feb 7, 2009 at 10:19 AM, Christoph Studer  wrote:
>
> Would it make sense to create a central scheduler for services that
> need to run periodically?
>
> There are a lot of application that want to run at periodic intervals,
> require network access and need to keep the device awake during their
> work. Instead of each app having to use an AlarmManager, a WakeLock
> and its own network availability checking / auto-retry, wouldn't it
> make sense to provide an API that would do that work?
>
> Also, if you have a lot of apps on your device with background checks,
> they run on different schedules and wake the device up more frequently
> than if they'd run on a synchronized schedule.
>
> Ideally, I'd imagine this service scheduler to provide the following:
> * Application can register and unregister service intents for a
> certain schedule.
> * Provide schedules an app can register for. These could be constant
> such as a frequent schedule (every 10mins) and a less frequent one
> (every 60mins), or maybe user configurable.
> * Apps can specify a network filter, i.e. only run when connected via
> wifi, 3g, 2g...
> * Services would signal to the scheduler when they're done, possibly
> with an error code such that the scheduler could retry automatically
> out of the ordinary schedule.
> * Provide a UI for users to change schedules, unregister services, etc.
> * Define and require permissions for schedules such that users could
> see how much "battery drainage" an app is causing.
>
> I really think this would be quite useful for developers and users
> likewise. This central service scheduler could be part of the
> platform/SDK or it could be a user APK, much like some of the OI
> components already available.
>
> Any thoughts?
>
> Christoph
>
> P.S.: Not sure whether android-developers is the right mailinglist,
> but it does not quite fit into any of the others, either.
>
> >
>



-- 
Jean-Baptiste M. "JBQ" Queru
Android Engineer, Google.

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[android-developers] Re: RC33 for Dev Phone

[Brad Fuller]

On Fri, Feb 6, 2009 at 6:16 PM, Disconnect  wrote:
> Install jf's 1.41-rc33. http://andblogs.net/tag/jf
>
> It is signed with test keys -and- its a full install instead of a patch, so
> no perquisites.

Has anyone tried this on their devphone? I only have one devphone so
I'm reluctant to try.

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[android-developers] Re: SlidingDrawer not working with RC33

[Romain Guy]

No, SlidingDrawer is a private widget. It is not supported.

On Sat, Feb 7, 2009 at 7:18 AM, Jean-Baptiste Queru  wrote:
>
> Can you please report this issue in http://b.android.com/ ? (a plain
> copy-paste will do).
>
> Thanks,
> JBQ
>
> On Sat, Feb 7, 2009 at 6:54 AM, Stefan  wrote:
>>
>> It appears that  android.internal.widget.SlidingDrawer widget had
>> changed between RC30 and RC33.
>>
>> On RC33 it fails to inflate the layout XML complaining  that: "The
>> handle attribute is required and must refer to a valid child"
>>
>> This is the XML I am trying to inflate:
>>
>> >android:id="@+id/drawer" android:layout_width="fill_parent"
>>android:layout_height="wrap_content"
>>android:topOffset="5px"
>>android:bottomOffset="7px"
>>android:handle="@+id/playlistHeader"
>>android:content="@+id/playList">
>>
>>>android:focusable="true"
>>android:clickable="true"
>>android:scaleType="center"
>>android:src="@drawable/ic_mp_current_playlist_btn"
>>android:layout_height="56dip"
>>android:layout_width="fill_parent" />
>>
>>>android:id="@+id/playList"
>>android:layout_width="fill_parent"
>>android:layout_height="fill_parent"
>>android:background="@color/grid_dark_background"/>
>>
>> 
>>
>> The XML above has both the "content" and the "handle" attribute and
>> worked fine in RC30?
>> Does anyone know what has changed and how to fix it?
>>
>> Stefan
>> >
>>
>
>
>
> --
> Jean-Baptiste M. "JBQ" Queru
> Android Engineer, Google.
>
> >
>



-- 
Romain Guy
Android framework engineer
romain...@android.com

Note: please don't send private questions to me, as I don't have time
to provide private support.  All such questions should be posted on
public forums, where I and others can see and answer them

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[android-developers] Re: Help debugging frequent garbage collection

[Romain Guy]

Hi,

It's pretty easy. Launch the tool called DDMS (the standalone one, not
the one that comes with the Eclipse plugin.) Inside the tool, go to
the Allocations Tracker tab. Click Start Tracking, use your app a
little, then click Get Allocations. You will get a list of all
allocations with, for each one of them, the stack trace to the
allocation.

On Sat, Feb 7, 2009 at 9:48 AM, snctln  wrote:
>
> I am having an issue with my latest game (available in the market as
> "BreakTheBlocks Lite")
>
> This is a simple "arcade" style game, It started with a thread
> controlling the game loop but now I just have a runnable that performs
> the game loop functions and then posts back to itself.
>
> In its original release there was a noticeable "stutter" in the game
> every other second or so.  After a great deal of time debugging I
> finally realized that every time the stutter happened LogCat showed
> that garbage collection was taking place.
>
> I went through my code and got rid of creating as many "temporary"
> objects as possible.  After that the stutter went from happening every
> 1.5 seconds to happening every 13-16 seconds.  This is much better,
> but I can't seem to reduce the time any further.
>
> According to LogCat the garbage collector is still running on my game
> thread every 15 seconds I see the message "GC freed 19833 objects /
> 878848 bytes in 131ms"... and since my game runs at about 30 frames a
> second a 131 millisecond stutter causes about 4 frames to be dropped
> which is an annoyance for me and the users of my game.
>
> So my question is What can I do to further debug this problem?  I have
> always known garbage collection existed but I have never bothered to
> care about it until now because it is finally affecting the
> performance of my app (and I am a C++ programmer by day so I usually
> forget about the GC)
>
> Is there any way to see what the garbage collector is collecting?  Is
> there any way that I can tweak the behavior of the GC for my app?
>
> Sorry for the long winded question and thank you in advance for any
> responses
> >
>



-- 
Romain Guy
Android framework engineer
romain...@android.com

Note: please don't send private questions to me, as I don't have time
to provide private support.  All such questions should be posted on
public forums, where I and others can see and answer them

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[android-developers] Re: Central service scheduler

[Christoph Studer]

That's a good suggestion, and might actually work for a lot of cases.

It just came to my mind that scheduling them at the exact same time
might actually cause performance and memory problems. Maybe one
would've to start them a bit more sequentially.


On Sat, Feb 7, 2009 at 7:56 PM, Greg White  wrote:
>
>
> On Sat, Feb 7, 2009 at 1:19 PM, Christoph Studer  wrote:
>>
>> Would it make sense to create a central scheduler for services that
>> need to run periodically?
>>
>> There are a lot of application that want to run at periodic intervals,
>> require network access and need to keep the device awake during their
>> work. Instead of each app having to use an AlarmManager, a WakeLock
>> and its own network availability checking / auto-retry, wouldn't it
>> make sense to provide an API that would do that work?
>
> I think this is a great idea and something that could be of great value, but
> all I want is something much simpler.  I think that a flag to
> AlarmManager.setRepeating  specifying that the alarm can be adjusted in
> order to synchronize multiple background tasks would be entirely
> sufficient.  Alternatively, a note that background tasks should adjust their
> alarms to fire on the minute (or on five minute boundaries) would serve a
> similar purpose.
>
> >
>

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[android-developers] Re: Central service scheduler

[Greg White]

On Sat, Feb 7, 2009 at 1:19 PM, Christoph Studer  wrote:

>
> Would it make sense to create a central scheduler for services that
> need to run periodically?
>
> There are a lot of application that want to run at periodic intervals,
> require network access and need to keep the device awake during their
> work. Instead of each app having to use an AlarmManager, a WakeLock
> and its own network availability checking / auto-retry, wouldn't it
> make sense to provide an API that would do that work?
>

I think this is a great idea and something that could be of great value, but
all I want is something much simpler.  I think that a flag to
AlarmManager.setRepeating  specifying that the alarm can be adjusted in
order to synchronize multiple background tasks would be entirely
sufficient.  Alternatively, a note that background tasks should adjust their
alarms to fire on the minute (or on five minute boundaries) would serve a
similar purpose.

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[android-developers] Re: SharedPreferences - is it secure?

[Christoph Studer]

If you're interested in Google auth tokens, you might want to take a
look at this:
http://www.cyrket.com/asset/-2921053538409761500

I have not tried this out myself and do not know whether they store a
password or just cache the token and ask the user for the password
each time it expired.

Christoph


On Sat, Feb 7, 2009 at 7:42 PM, Teo  wrote:
> An auth token would be great, coincidentally it's a Google service i need a
> password for.
> @JP: Wouldn't a finder of a lost phone have access to the user's Google
> account in the first place? From what i know, the signing in is done
> automatically after setup.
>
> On Sat, Feb 7, 2009 at 8:18 PM, JP  wrote:
>>
>>
>>
>> On Feb 7, 9:43 am, Christoph Studer  wrote:
>> > (Note that rooted devices do not provide this security, because any
>> > application can possibly become root and do whatever it wants on the
>> > phone, AFAIK. But that's the user's risk when rooting a device.)
>>
>> Suppose user loses phone. Finder then roots it and uses adb to pull
>> the database and preferences files -> Damage done. I consider it good
>> practice to assume *anything* that's stored on the device is "up for
>> grabs".
>>
>> Even with encryption things may be dicey. Finder may have success
>> retrieving the original password through a reverse lookup. Just by
>> what Google does (crawling the web), they've indexed a sizeable number
>> of MD5 passwords for a reverse lookup.
>>
>>
>
>
>
> --
> Teo (a.k.a. Teominator a.k.a. Teodor Filimon)
> site www.teodorfilimon.com | blog www.teodorfilimon.blogspot.com
> GMT +2
>
> >
>

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[android-developers] Re: SharedPreferences - is it secure?

[Christoph Studer]

That's right. It's unfortunately a trade-off between convenience and security.

Somewhere on your device, there's also your Gmail password or some
sort of ling-living token that can be used to authenticate against
Google services. Is it worth the risk of having others read your Gmail
messages and chat with your friends (and do other things with your
Google account), but in turn not having to frequently enter your
Google password? That's something everybody should ask himself when
storing passwords, even more so with mobile devices. (I for one think
it's worth it, otherwise I'd not use my G1.)

The only way to provide real security (or shall I say "better
security") would be in hardware, i.e. having some sort of TC chip that
would provide encryption/decryption to properly signed code only. And
even though there are "bad" uses of TC, I surely think techniques like
this should be used to provide better security to users.

Christoph


On Sat, Feb 7, 2009 at 7:18 PM, JP  wrote:
>
>
>
> On Feb 7, 9:43 am, Christoph Studer  wrote:
>> (Note that rooted devices do not provide this security, because any
>> application can possibly become root and do whatever it wants on the
>> phone, AFAIK. But that's the user's risk when rooting a device.)
>
> Suppose user loses phone. Finder then roots it and uses adb to pull
> the database and preferences files -> Damage done. I consider it good
> practice to assume *anything* that's stored on the device is "up for
> grabs".
>
> Even with encryption things may be dicey. Finder may have success
> retrieving the original password through a reverse lookup. Just by
> what Google does (crawling the web), they've indexed a sizeable number
> of MD5 passwords for a reverse lookup.
>
> >
>

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[android-developers] Re: SharedPreferences - is it secure?

[Teo]

An auth token would be great, coincidentally it's a Google service i need a
password for.
@JP: Wouldn't a finder of a lost phone have access to the user's Google
account in the first place? From what i know, the signing in is done
automatically after setup.

On Sat, Feb 7, 2009 at 8:18 PM, JP  wrote:

>
>
>
> On Feb 7, 9:43 am, Christoph Studer  wrote:
> > (Note that rooted devices do not provide this security, because any
> > application can possibly become root and do whatever it wants on the
> > phone, AFAIK. But that's the user's risk when rooting a device.)
>
> Suppose user loses phone. Finder then roots it and uses adb to pull
> the database and preferences files -> Damage done. I consider it good
> practice to assume *anything* that's stored on the device is "up for
> grabs".
>
> Even with encryption things may be dicey. Finder may have success
> retrieving the original password through a reverse lookup. Just by
> what Google does (crawling the web), they've indexed a sizeable number
> of MD5 passwords for a reverse lookup.
>
> >
>


-- 
Teo (a.k.a. Teominator a.k.a. Teodor Filimon)
site www.teodorfilimon.com | blog www.teodorfilimon.blogspot.com
GMT +2

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[android-developers] Re: debugging integrated Java and native code

[Dave Sparks]

A few of our developers use Eclipse as a front-end for gdb. I recall
that the setup is a bit tricky. Maybe someone can post the magic
formula.

I use gdb myself, but then I still use vi and makefiles. IDE's are for
wimps. :)

On Feb 7, 9:22 am, Sergey Ten  wrote:
> Hi,
>
> I am trying to figure out what is the best way to debug a mix of Java
> and native code? Please notice, that I am NOT trying to develop a native
> app. The app will be written entirely in Java, using Android SDK.
> However, I noticed that some pieces of the SDK use native methods (e.g.
> AssetManager, WebKit, etc). I wonder which tools Google developers use
> if/when they need to debug a mix of Java and C/C++ code? Eclipse/gdb or
> there are commercial tools which make the debugging experience less
> painful?
>
> I googled on this topic and the results returned do not look very
> encouraging.
>
> Thanks,
> Sergey
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[android-developers] Central service scheduler

[Christoph Studer]

Would it make sense to create a central scheduler for services that
need to run periodically?

There are a lot of application that want to run at periodic intervals,
require network access and need to keep the device awake during their
work. Instead of each app having to use an AlarmManager, a WakeLock
and its own network availability checking / auto-retry, wouldn't it
make sense to provide an API that would do that work?

Also, if you have a lot of apps on your device with background checks,
they run on different schedules and wake the device up more frequently
than if they'd run on a synchronized schedule.

Ideally, I'd imagine this service scheduler to provide the following:
* Application can register and unregister service intents for a
certain schedule.
* Provide schedules an app can register for. These could be constant
such as a frequent schedule (every 10mins) and a less frequent one
(every 60mins), or maybe user configurable.
* Apps can specify a network filter, i.e. only run when connected via
wifi, 3g, 2g...
* Services would signal to the scheduler when they're done, possibly
with an error code such that the scheduler could retry automatically
out of the ordinary schedule.
* Provide a UI for users to change schedules, unregister services, etc.
* Define and require permissions for schedules such that users could
see how much "battery drainage" an app is causing.

I really think this would be quite useful for developers and users
likewise. This central service scheduler could be part of the
platform/SDK or it could be a user APK, much like some of the OI
components already available.

Any thoughts?

Christoph

P.S.: Not sure whether android-developers is the right mailinglist,
but it does not quite fit into any of the others, either.

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[android-developers] Re: SharedPreferences - is it secure?

[JP]

On Feb 7, 9:43 am, Christoph Studer  wrote:
> (Note that rooted devices do not provide this security, because any
> application can possibly become root and do whatever it wants on the
> phone, AFAIK. But that's the user's risk when rooting a device.)

Suppose user loses phone. Finder then roots it and uses adb to pull
the database and preferences files -> Damage done. I consider it good
practice to assume *anything* that's stored on the device is "up for
grabs".

Even with encryption things may be dicey. Finder may have success
retrieving the original password through a reverse lookup. Just by
what Google does (crawling the web), they've indexed a sizeable number
of MD5 passwords for a reverse lookup.

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[android-developers] Using bindView to Customize ListView

[Nmix]

In all the examples I've found to manipulate each view in a ListView,
the method always seems to be getView(). But these were never Adapters
backed by a cursor. I decided to try bindView() within a
SimpleCursorAdapter, and so far it works very nicely, especially with
the cursor all set up for my use.

My question is, is this usage good practice, and could I run into a
problem in future? My question may be dumb but I just couldn't find a
good example code snippet that uses a cursor.
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[android-developers] Help debugging frequent garbage collection

[snctln]

I am having an issue with my latest game (available in the market as
"BreakTheBlocks Lite")

This is a simple "arcade" style game, It started with a thread
controlling the game loop but now I just have a runnable that performs
the game loop functions and then posts back to itself.

In its original release there was a noticeable "stutter" in the game
every other second or so.  After a great deal of time debugging I
finally realized that every time the stutter happened LogCat showed
that garbage collection was taking place.

I went through my code and got rid of creating as many "temporary"
objects as possible.  After that the stutter went from happening every
1.5 seconds to happening every 13-16 seconds.  This is much better,
but I can't seem to reduce the time any further.

According to LogCat the garbage collector is still running on my game
thread every 15 seconds I see the message "GC freed 19833 objects /
878848 bytes in 131ms"... and since my game runs at about 30 frames a
second a 131 millisecond stutter causes about 4 frames to be dropped
which is an annoyance for me and the users of my game.

So my question is What can I do to further debug this problem?  I have
always known garbage collection existed but I have never bothered to
care about it until now because it is finally affecting the
performance of my app (and I am a C++ programmer by day so I usually
forget about the GC)

Is there any way to see what the garbage collector is collecting?  Is
there any way that I can tweak the behavior of the GC for my app?

Sorry for the long winded question and thank you in advance for any
responses
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[android-developers] Re: SharedPreferences - is it secure?

[Christoph Studer]

Teo, using SharedPreferences with MODE_PRIVATE should be "safe" in the
sense that other application cannot snoop in there.

Using an SQLite database is not more or less secure than
SharedPreferences. Both are stored in the data folder of your
application, the security of which is provided by the underlying linux
system.

(Note that rooted devices do not provide this security, because any
application can possibly become root and do whatever it wants on the
phone, AFAIK. But that's the user's risk when rooting a device.)

Also, there's currently no central password store provided by the
Android SDK. There's a project called CryptoIntents that you could
make use of to store the password encrypted. This requires the user to
enter a master password whenever you want to access the unencrypted
password (with some timeout).
http://code.google.com/p/openintents/wiki/CryptoIntents

For authentication at Google services, I think there's a plan to allow
apps to obtain an auth token for the Google account associated with
the device. See this discussion:
http://groups.google.com/group/android-developers/browse_thread/thread/f63f19acb691c980/ddc37cd8e23d56c8?lnk=raot

Christoph


On Sat, Feb 7, 2009 at 4:54 PM, Teo  wrote:
> Thanks for the reply. I'll only have one password per device - as for the
> device borrowing (if i understood correctly what you said) i'm not sure i
> can do anything about that :)
> The thing is, i asked this question becase it's called 'Shared'Preferences.
> But i've seen that it also has a MODE_PRIVATE parameter, and according to
> the docs:
>
> the created file can only be accessed by the calling application (or all
> applications sharing the same user ID).
>
> And again, according to the docs:
>
> Each Android package (.apk) file installed on the device is given its own
> unique Linux user ID, creating a sandbox for it and preventing it from
> touching other applications (or other applications from touching it). This
> user ID is assigned to it when the application is installed on the device,
> and remains constant for the duration of its life on that device.
>
> So i guess this should be enough, unless i'm missing something... (SQLite
> would be a nice solution but it doesn't seem natural to me for individual
> settings)
> Thanks,
> Teo
> On Sat, Feb 7, 2009 at 5:29 PM, Fred Grott(shareme) 
> wrote:
>>
>> SQLite stores user  data by the app package name. if you did a db
>> scehma that allowed for more than one user than it would be a safe way
>> to go assuming that your popular app is borrowed along with device
>> among friends..
>>
>>
>>
>> On Feb 7, 8:31 am, Teo  wrote:
>> > Hi,
>> >
>> > i'm implementing a feature that requires a password, is it safe to
>> > store using SharedPreferences.Editor? Is there another recommended way
>> > for storing passwords?
>> >
>> > Thanks,
>> > Teo
>>
>
>
>
> --
> Teo (a.k.a. Teominator a.k.a. Teodor Filimon)
> site www.teodorfilimon.com | blog www.teodorfilimon.blogspot.com
> GMT +2
>
> >
>

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[android-developers] Android Developers Needed in Singapore

[Zi Yong Chua]

Dear fellow developers,

I am working on a mobile application that relates to media content
delivery that I am building on the Android platform. Now I am trying
to look for Android developers in Singapore who is interested in
taking on this project. If you are from Singapore and is interested,
please contact me via my email (chu...@gmail.com) and we can meet up
to discuss about the details. Thank you.

Cheers
Zi Yong
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[android-developers] Re: WebView responding to touch events

[Sergey Ten]

Mark,

I think I had this problem myself and could solve it by using the following
code:

   webView.setOnTouchListener(new View.OnTouchListener() {
   public boolean onTouch(View v, MotionEvent event) {
   switch (event.getAction()) {
   case MotionEvent.ACTION_DOWN:
   case MotionEvent.ACTION_UP:
   if (!v.hasFocus()) {
   v.requestFocus();
   }
   break;
   }
   return false;
   }
   });

Hope this would help,
Sergey

On Sat, Feb 7, 2009 at 12:07 AM, Mariano Kamp wrote:

> Mark, maybe you should post some code?
>
>
> On Thu, Feb 5, 2009 at 4:36 PM, Mark Nuetzmann 
> wrote:
>
>>
>> I have an Activity that has a WebView that contains some simple html
>> that allows me to display a Terms & Conditions link that if touched or
>> clicked calls another activity.  My problem is unless the link in the
>> WebView has focus (ie, the text is wrapped with that little orange
>> focus) I cannot touch the link and have it work.  If any other view on
>> the activity has focus, touching the WebView with the link does
>> nothing.  The other Views that had focus loose focus, but the WebView
>> does not receive focus.  I have tried calling setFocusable(true) and
>> setFocusableInTouchMode(true) but that does not do any good...
>>
>> I would really like to know what you have to do to get a WebView to
>> respond to touch events without using the trackball to scroll to the
>> view before touching it.
>>
>> thank you,
>> Mark
>>
>>
>
> >
>

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[android-developers] Re: Writing files to SD card failing

[Tane Piper]

Yea, I checked the SD card and there was a file there, I remove it and
also moved the mkdirs up to the second File, now works fine.  Thanks
for the tip on closing the file too.

On Feb 7, 5:10 pm, David Given  wrote:
> Tane Piper wrote:
>
> [...]
>
> >                            File k = new File(j, rowId + ".jpg");
> >                            k.mkdirs();
> >                            k.createNewFile();
> [...]
> > However, it keeps failing on the line k.createNewFile(); with the
> > error:
> > WARN/System.err(10727): java.io.IOException: Parent of file is not a
> > directory: /sdcard/twitcast/1.jpg
>
> It looks like there's a file on your SD card called '/sdcard/twitcast'
> that's preventing the directory from being created. Is File.mkdirs()
> returning non-zero? (Remember that it doesn't throw an IOException on
> error.)
>
> Also, in the interests of pedantry, it's a good idea to close your
> FileOutputStream after use --- while the garbage collector will take
> care of it *eventually*, leaving the file open may cause you problems
> later if you need to open the file again.
>
> --
> ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ─http://www.cowlark.com─
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>
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[android-developers] debugging integrated Java and native code

[Sergey Ten]

Hi,

I am trying to figure out what is the best way to debug a mix of Java 
and native code? Please notice, that I am NOT trying to develop a native 
app. The app will be written entirely in Java, using Android SDK. 
However, I noticed that some pieces of the SDK use native methods (e.g. 
AssetManager, WebKit, etc). I wonder which tools Google developers use 
if/when they need to debug a mix of Java and C/C++ code? Eclipse/gdb or 
there are commercial tools which make the debugging experience less 
painful?

I googled on this topic and the results returned do not look very 
encouraging.

Thanks,
Sergey

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[android-developers] Re: Writing files to SD card failing

[David Given]

Tane Piper wrote:
[...]
>   File k = new File(j, rowId + ".jpg");
>   k.mkdirs();
>   k.createNewFile();
[...]
> However, it keeps failing on the line k.createNewFile(); with the
> error:
> WARN/System.err(10727): java.io.IOException: Parent of file is not a
> directory: /sdcard/twitcast/1.jpg

It looks like there's a file on your SD card called '/sdcard/twitcast'
that's preventing the directory from being created. Is File.mkdirs()
returning non-zero? (Remember that it doesn't throw an IOException on
error.)

Also, in the interests of pedantry, it's a good idea to close your
FileOutputStream after use --- while the garbage collector will take
care of it *eventually*, leaving the file open may cause you problems
later if you need to open the file again.

-- 
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│ "A line dancer near a graduated cylinder, the blithe spirit inside
│ some wheelbarrow, and a tomato are what made America great!" ---
│ received via spam



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[android-developers] Writing files to SD card failing

[Tane Piper]

Hi there,

I'm writing an podcast playing application.  The application has pre-
defined feeds but I want to cache the image of the feed for 30 days.
However, on the initial creation of the podcast I am downloading the
image, and trying to save it to the SD card using the code below:

public long createPodcast(RssFeed feed, String feedUrl) {
ContentValues insertValues = new ContentValues();
insertValues.put(KEY_FEED_TITLE, feed.title);
insertValues.put(KEY_FEED_FEED_URL, feedUrl);
insertValues.put(KEY_FEED_LINK, feed.link);
insertValues.put(KEY_FEED_DESCRIPTION, feed.description);
insertValues.put(KEY_FEED_PUBDATE, feed.pubDate);
insertValues.put(KEY_FEED_IMAGE_URL, feed.imageUrl);
insertValues.put(KEY_FEED_IMAGE_WIDTH, feed.imageWidth);
insertValues.put(KEY_FEED_IMAGE_HEIGHT, feed.imageHeight);
insertValues.put(KEY_FEED_SUBSCRIBED, false);

long rowId = mDb.insert(TABLE_PODCAST_LIST, null,
insertValues);

String storage_state = Environment.getExternalStorageState
();
if (storage_state.contains("mounted")) {
File f = Environment.getExternalStorageDirectory();
File j = new File(f, "twitcast");
try {
URL users_avatar = new URL(feed.imageUrl);
HttpURLConnection conn = (HttpURLConnection)
users_avatar.openConnection();
conn.setDoInput(true);
conn.connect();
InputStream is = conn.getInputStream();
Bitmap bmImg = BitmapFactory.decodeStream(is);

File k = new File(j, rowId + ".jpg");
k.mkdirs();
k.createNewFile();
FileOutputStream fos = new FileOutputStream(k);
bmImg.compress(Bitmap.CompressFormat.JPEG, 100, 
fos);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return rowId;
}

However, it keeps failing on the line k.createNewFile(); with the
error:
WARN/System.err(10727): java.io.IOException: Parent of file is not a
directory: /sdcard/twitcast/1.jpg

I've checked and I have write permission and the SD card is mounted,
and I have android.permission.MOUNT_UNMOUNT_FILESYSTEMS included in my
manifest.

Does anyone have any ideas why this keeps failing?

Thanks,
Tane Piper

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[android-developers] Re: SharedPreferences - is it secure?

[Teo]

Thanks for the reply. I'll only have one password per device - as for the
device borrowing (if i understood correctly what you said) i'm not sure i
can do anything about that :)
The thing is, i asked this question becase it's called 'Shared'Preferences.
But i've seen that it also has a MODE_PRIVATE parameter, and according to
the docs:

the created file can only be accessed by the calling application (or all
applications sharing the same user ID).


And again, according to the docs:

Each Android package (.apk) file installed on the device is given its own
unique Linux user ID, creating a sandbox for it and preventing it from
touching other applications (or other applications from touching it). This
user ID is assigned to it when the application is installed on the device,
and remains constant for the duration of its life on that device.


So i guess this should be enough, unless i'm missing something... (SQLite
would be a nice solution but it doesn't seem natural to me for individual
settings)

Thanks,
Teo

On Sat, Feb 7, 2009 at 5:29 PM, Fred Grott(shareme) wrote:

>
> SQLite stores user  data by the app package name. if you did a db
> scehma that allowed for more than one user than it would be a safe way
> to go assuming that your popular app is borrowed along with device
> among friends..
>
>
>
> On Feb 7, 8:31 am, Teo  wrote:
> > Hi,
> >
> > i'm implementing a feature that requires a password, is it safe to
> > store using SharedPreferences.Editor? Is there another recommended way
> > for storing passwords?
> >
> > Thanks,
> > Teo
> >
>


-- 
Teo (a.k.a. Teominator a.k.a. Teodor Filimon)
site www.teodorfilimon.com | blog www.teodorfilimon.blogspot.com
GMT +2

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[android-developers] Re: SharedPreferences - is it secure?

[Fred Grott(shareme)]

SQLite stores user  data by the app package name. if you did a db
scehma that allowed for more than one user than it would be a safe way
to go assuming that your popular app is borrowed along with device
among friends..



On Feb 7, 8:31 am, Teo  wrote:
> Hi,
>
> i'm implementing a feature that requires a password, is it safe to
> store using SharedPreferences.Editor? Is there another recommended way
> for storing passwords?
>
> Thanks,
> Teo
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[android-developers] WebView-Security/Privacy

[Fred Grott(shareme)]

For those developing webview apps..

Recommended Security and Privacy Settings:

webVew websettings:

savePassword false
save form data false

Save username password pair allowing multiuser using SQlite
set an app username password pair to ask on app start up.

This avoids the concerns complained about with Loopt and Google
Latitude.

This way you prepare app for being borrowed among device owner's
friends and other privacuy/security concerns.
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[android-developers] Re: SlidingDrawer not working with RC33

[Jean-Baptiste Queru]

Can you please report this issue in http://b.android.com/ ? (a plain
copy-paste will do).

Thanks,
JBQ

On Sat, Feb 7, 2009 at 6:54 AM, Stefan  wrote:
>
> It appears that  android.internal.widget.SlidingDrawer widget had
> changed between RC30 and RC33.
>
> On RC33 it fails to inflate the layout XML complaining  that: "The
> handle attribute is required and must refer to a valid child"
>
> This is the XML I am trying to inflate:
>
> android:id="@+id/drawer" android:layout_width="fill_parent"
>android:layout_height="wrap_content"
>android:topOffset="5px"
>android:bottomOffset="7px"
>android:handle="@+id/playlistHeader"
>android:content="@+id/playList">
>
>android:focusable="true"
>android:clickable="true"
>android:scaleType="center"
>android:src="@drawable/ic_mp_current_playlist_btn"
>android:layout_height="56dip"
>android:layout_width="fill_parent" />
>
>android:id="@+id/playList"
>android:layout_width="fill_parent"
>android:layout_height="fill_parent"
>android:background="@color/grid_dark_background"/>
>
> 
>
> The XML above has both the "content" and the "handle" attribute and
> worked fine in RC30?
> Does anyone know what has changed and how to fix it?
>
> Stefan
> >
>



-- 
Jean-Baptiste M. "JBQ" Queru
Android Engineer, Google.

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[android-developers] Pygame on Android

[funkydude]

Hey hi,

Does anyone have any guess about, any support for pygame based
applications/games on Android.

If someone has ported a game made in pygame to Android platform, or
knows of any such way. It would be great if you could share it.

Thanks in advance!!
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[android-developers] SlidingDrawer not working with RC33

[Stefan]

It appears that  android.internal.widget.SlidingDrawer widget had
changed between RC30 and RC33.

On RC33 it fails to inflate the layout XML complaining  that: "The
handle attribute is required and must refer to a valid child"

This is the XML I am trying to inflate:









The XML above has both the "content" and the "handle" attribute and
worked fine in RC30?
Does anyone know what has changed and how to fix it?

Stefan
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[android-developers] Re: Making ListView stop on a finger press

[Gw1921]

Okay more on this - it seems my custom view for each row inside the
list is grabbing the touch event and not passing it through to the
list. I have set "setItemsCanFocus" on the ListView to True (as its
required) and now I can't make the listview stop it's scrolling on a
tap. It only stops when it stops scrolling eventually.

Any idea how I can pass the touch back to its parent? I've tried
returning "false" from a TouchListener as well but no luck

On Feb 7, 11:56 am, Gw1921  wrote:
> How can I make the ListView immediately stop scrolling on a finger
> down event? It keeps scrolling if I give it a big swipe and doesn't
> stop immediately if my finger is pressed down again. Any idea? Thanks
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[android-developers] SharedPreferences - is it secure?

[Teo]

Hi,

i'm implementing a feature that requires a password, is it safe to
store using SharedPreferences.Editor? Is there another recommended way
for storing passwords?

Thanks,
Teo
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[android-developers] Re: Market statistics for apps targeting The Netherlands are not correct

[Ronald van der Lingen]

That seems to have been a different problem. As of now, the market
statistics have still not been updated.

Kind Regards,
Ronald


On Feb 6, 11:27 pm, blindfold  wrote:
> Maybe Google fixed things a moment ago? I had a related issue that
> although I live in The Netherlands, I could not even find the Dutch
> "ING Wegwijzer" (for finding local ATMs) today when searching Android
> Market with my dev phone 1. However, now I suddenly can, and I also
> find PimPam (did not try it though).
>
> Regards
>
> On Feb 6, 9:24 pm, Ronald van der Lingen  wrote:
>
> > Thanks for the update. I hope you can find the cause of the problem
> > and that the download count for the last week can still be recovered.
>
> > Kind Regards,
> > Ronald
>
> > On Feb 6, 9:00 pm, "Justin (Google Employee)"  wrote:
>
> > > There does appear to be some problem here. We're looking into it
> > > further.
>
> > > Cheers,
> > > Justin
> > > Android Team @ Google
>
>
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[android-developers] Sensors: Does orientation depend on acceleration?

[Markus Junginger]

I played around with the G1 sensors a bit and my impression was that
the orientation and the gravity sensor relate. Maybe the orientation
"sensor" even just uses the acceleration data to calculate the
orientation?

What led me to this question: when you try keep the device in the same
orientation and move/shake it, the orientation values are very much
affected.

Thanks,
Markus

--
http://jars.de
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[android-developers] Re: "Native code is not supported in the current SDK."

[Greg White]

On Fri, Feb 6, 2009 at 2:29 AM, Dave Sparks  wrote:

> We do intend to support native code development in the future. We just
> want to take time to refine the native API's before we make them
> public. There is nothing more painful than changing an API because you
> overlooked something and then having to support the legacy API for
> years to come.
>

With all respect, there is at least one thing more painful than that, as
Microsoft could tell you: not providing sufficient API's in a timely
fashion, having app developers work around obvious deficiencies, and then
being stuck supporting those applications anyway.

IMO, based on the traffic on the various Android lists, you are risking
having that happen.  The specific scenario would be that a group of
developers (probably game developers) get together and agree on a native
extension mechanism and work together to use it, and it becomes a de facto
standard.  As games are probably your most important application group and
as they are the most likely to require native speed, you could get yourself
into a real pickle unless you release something very, very soon.  If it is
just a couple of apps that do this, no problem.  If it is many, if it is
your most popular apps, breaking them may not be an option for you.

Something to mull over as Google thinks about scheduling this particular
platform change and worry about getting it "just right".   We all might be
better served if you stuck with JNI, and if that's not good enough, some
clear guidelines about what underlying APIs should and should not be used by
native code would be a very, VERY good idea - and getting those guidelines
out very VERY soon an even better one.

My two cents.  Worth at least what you paid for it, etc, etc.

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[android-developers] how to obtain asset file uri

[Prashant]

Hi

I am sending email from my application. I need to send an attachment
along with email. The attachment files are audio files and are stored
as application assets (assets folder).

To send an attachment along with the email. I need to provide uri for
the asset file. I tried this

Uri.parse("file:///android_asset/" + fileName);

but the file did not get attached to the email.

Can any one tell me how to obtain the uri for the files stored in
application assets folder.

Please help.

Regards,
Prashant
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[android-developers] Making ListView stop on a finger press

[Gw1921]

How can I make the ListView immediately stop scrolling on a finger
down event? It keeps scrolling if I give it a big swipe and doesn't
stop immediately if my finger is pressed down again. Any idea? Thanks
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[android-developers] After install ADT0.9,failed to launch APP as no VM compatible with android 1.5

[tony]

The error info is:
[2009-02-07 18:11:06 - CameraTest] --
[2009-02-07 18:11:06 - CameraTest] Android Launch!
[2009-02-07 18:11:06 - CameraTest] adb is running normally.
[2009-02-07 18:11:06 - CameraTest] Launching: com.CameraTest
[2009-02-07 18:11:06 - CameraTest] Failed to find a VM compatible with
target 'Android 1.5'. Launch aborted.

Who knows any clue of such problem?
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[android-developers] Re: How to pass arguments to emulator using ADT 0.9

[tony]

There's a line "Additional Emulator command line options" and the
input box is actually below the line but is invisible.

You can move the focus to  "Disable Boot Animation" checkbox and press
TAB to focus on the input box,then you can set your option.

Although we can set the argument this way,I still can't launch as
error "Failed to find a VM compatible with target 'Android 1.5'.
Launch aborted"

B.R
Tony

On Jan 30, 9:29 pm, Breno  wrote:
>           Hi,
>
>                     After generatingADT0.9, using Cupcake SDk, i
> need to specify a sdcard to emulator, in eclipse. InADT0.8 there is
> a field in Run Configuration, but inADT0.9 no. How can i do that?
> Thanks a lot
>
> Breno
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[android-developers] Re: access to class not allowed

[johnny]

So from which version, rc1, 1.0 or cupcake, the bug in Dalvik is
fixed? Just want to make it easier when communicating with the author
of the apk file.

Thanks,
Johnny

On Feb 7, 4:22 am, fadden  wrote:
> On Feb 6, 7:38 am, johnny  wrote:
>
> > I get an apk file from somewhere. I tried to install it the emulator
> > successfully. (The emulator is built from the latest code in AOSP
> > which should be cupcake or later). But I can't launch the application
> > from the GUI. It complains "The application xxx has stopped
> > unexpectedly." After checking the logcat, I find the message "access
> > to class not allowed". It seems that that process is not allowed to
> > instantiate the Activity class.
>
> This usually happens when the class that the app framework is trying
> to instantiate isn't declared "public".  In some older versions of
> Dalvik this was mistakenly allowed, so if the APK is old enough it
> might need to be rebuilt with a corrected class declaration.
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[android-developers] Re: WebView starts with a delay

[Mariano Kamp]

Nice video - love the transitional effect between the screens ;-) How did
you implement them?

On Sat, Feb 7, 2009 at 2:03 AM, Fred Grott(shareme) wrote:

>
> The delay is it is processing these items in your head..loading
> javascript, css and etc.
>
> The way I handled it was setting background color to zero for
> transparency and using style to load a application logo image that
> user sees while stuff loads.
>
> You will not be able to speed it up however.
>
> You can see video examples here:
>
> http://www.youtube.com/user/memine44
>
>
>
>
> On Feb 6, 6:48 pm, Inderjeet Singh  wrote:
> > I am using WebView in a number of screens in my application, and
> > notice that it takes couple of seconds when starting up for the first
> > time.
> >
> > What can I do to speed it up besides trying to create one in a
> > separate thread beforehand?
> > Thanks
> > Inder
> >
>

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[android-developers] Re: WebView responding to touch events

[Mariano Kamp]

Mark, maybe you should post some code?

On Thu, Feb 5, 2009 at 4:36 PM, Mark Nuetzmann wrote:

>
> I have an Activity that has a WebView that contains some simple html
> that allows me to display a Terms & Conditions link that if touched or
> clicked calls another activity.  My problem is unless the link in the
> WebView has focus (ie, the text is wrapped with that little orange
> focus) I cannot touch the link and have it work.  If any other view on
> the activity has focus, touching the WebView with the link does
> nothing.  The other Views that had focus loose focus, but the WebView
> does not receive focus.  I have tried calling setFocusable(true) and
> setFocusableInTouchMode(true) but that does not do any good...
>
> I would really like to know what you have to do to get a WebView to
> respond to touch events without using the trackball to scroll to the
> view before touching it.
>
> thank you,
> Mark
> >
>

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[android-developers] Re: Application storage data growing

[Mariano Kamp]

I guess we're talking about /data/data/
Did you check there?

You can use "adb -d shell" to open a shell on your device and the cd there.
adb -d shell
cd /data/data/
ls -l

Btw. Do you use WebView in your app? It caches stuff until you remove it by
calling WebView.clearCache() or tell WebView not to cache.

On Fri, Feb 6, 2009 at 11:45 PM, Rmac  wrote:

>
> Thanks Dianne.  The odd thing is that I am NOT creating any files.
> And let me make sure we are talking the same thing... when I say
> "data", I don't mean the data directory... I am talking about going to
> Settings/Applications/Manage applications/myapp/Storage/Data... if
> that is the data directory then we are talking about the same thing.
> What else could go there besides files that are explicitly created by
> the app?  Preferences?  SQLite databases?  Anything else?  The data
> storage value seems to gradually grow over time while using the app...
> from initial size of 76K to nearly a meg.
>
>
> On Feb 6, 11:51 am, Dianne Hackborn  wrote:
> > Unfortunately it's a little tricky, because only your app (and some very
> > very low-level parts of the system) can touch your data.  You can,
> however,
> > just add some code to your app that iterates through your data
> directories
> > with the standard Java File APIs and prints out what it finds.
> >
> > On Fri, Feb 6, 2009 at 8:36 AM, Rmac  wrote:
> >
> > > I've had debugging on from the beginning.  What I need is something
> > > that can tell me exactly what is in the application's "data" area that
> > > Android reports via Settings for managing applications.  I am sure my
> > > application is adding to it somehow, but I have no handle to tell what
> > > content is stored there.
> >
> > > On Feb 5, 5:08 am, Chander Pechetty  wrote:
> > > > Not sure if you can do this, but check outhttp://
> > > code.google.com/android/intro/develop-and-debug.html#developin...
> > > > to understand the tools and limitations
> >
> > --
> > Dianne Hackborn
> > Android framework engineer
> > hack...@android.com
> >
> > Note: please don't send private questions to me, as I don't have time to
> > provide private support.  All such questions should be posted on public
> > forums, where I and others can see and answer them.
> >
>

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