[android-developers] Our App has been removed from Google Play.

[Johnny]

The email is :


After review, xx-App , has been removed from Google Play because it 
violates our *personal and sensitive information* policy. This app won’t be 
available to users until you submit a compliant update.


We will show the dialog on the first Activity, if user click "ok"，then 
continue，the dialog content is : 

In using xx-App  the User agrees and accepts that xx-App can process and 
collect your information retrieved from the phone in this Application for a 
secure purpose and xx-App undertakes not to disclose any information of 
User to any third party.



is OK?  and the app is  reloaded on Google Play,  other people can search 
it ? 

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[android-developers] Re: How to check which button is clicked

[Johnny]

In your Java code, you can get these three buttons by:
findViewById(); - assume that you have already set id for these
buttons in the xml file

Then you can add OnClickListener to each of them, to perform specific
task seperately.

--Johnny

On Feb 23, 9:13 pm, gganesh  wrote:
> hi friends,
> I have 3 buttons on the screen and i have to perform different task
> according to the button clicked ,how can i check which button is
> clicked
> Thanks in Advance
> ganesh
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[android-developers] Style Guide for Android application development

[johnny]

I find there was many discussions about the Style Guide when Android
was still in Beta and RC. Now Android 1.0 has been released. The new
release cupcake also went out. I am curious about whether Google has a
plan to release a Style Guide for Android app development.

Thanks,
Johnny
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[android-developers] Re: Style Guide for Android application development

[johnny]

Great! But when can we expect it? Is there any estimated time line?

On Feb 3, 12:39 am, Romain Guy  wrote:
> There will be one.
>
> On Feb 2, 2009 12:47 AM, "johnny"  wrote:
>
> I find there was many discussions about the Style Guide when Android
> was still in Beta and RC. Now Android 1.0 has been released. The new
> release cupcake also went out. I am curious about whether Google has a
> plan to release a Style Guide for Android app development.
>
> Thanks,
> Johnny
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[android-developers] Re: How to Lock the phone by application

[Johnny]

According to a previous thread:
http://groups.google.com/group/android-developers/browse_thread/thread/94312b8093042beb/ae00cf5ad4d176e7?#ae00cf5ad4d176e7

The permission DEVICE_POWER is not available for applications.

On Feb 3, 6:46 pm, shahzad ahmad  wrote:
> Hi,
>
> I'm trying to lock the phone through my application .I'm using following
> code
>
>         PowerManager pm =
> (PowerManager)context.getSystemService(Context.POWER_SERVICE);
>         pm.goToSleep(16);
>
> I've added following permission to AndroiManifest.xml file
>
>     
>
> But the application crashes by throwing following exception
>
> *E/AndroidRuntime(  436): Caused by: java.lang.SecurityException: Neither
> user 10032 nor current process has android.permission.DEVICE_POWER.*
>
> Please help me to avoid the above mentioned exception or tell me some other
> way to lock the screen
>
> thanks,
> shahzad
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[android-developers] access to class not allowed

[johnny]

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.

Since I can install the apk successfully, I am curious why I can't
launch it as a user.

BTW, I tried two ways to install the app. 1) by copying it to /system/
app and rebuild the system.img 2) by using "adb install". Both getting
the same error message.

I tried to extract the AndroidManifest.xml file from the apk.  But it
seems that the file is scrambled and can't read.

Any idea?

Thanks,
Johnny
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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: access to class not allowed

[johnny]

I am sure that is the problem. I hacked the dalvik and uncommented the
line to check if the class is public. And then the application can be
launched. So thank you very much for the hints.

On Feb 10, 5:34 am, fadden  wrote:
> On Feb 7, 1:09 am, johnny  wrote:
>
> > 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.
>
> I don't remember precisely.  Since I'm not sure this is the problem
> you're experiencing, it would probably be best to send the author some
> information about what version of the platform you're running, along
> with a healthy snippet from the log file.
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[android-developers] The status of Donut and HTC hero

[johnny]

Hi,

Any one knows the status of Donut. There is already leaked HTC Hero
phone. I wonder which version that Hero phone will be based.

Regards,
Johnny Xia.
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[android-developers] File Browser Integration

[johnny]

Hi,

I want to integrate a file browser with my application. Does anyone
know where I could get the source code for a pretty good file browser?
(With the developer's permission of course). The more, the better...

Thanks,

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[android-developers] Re: how to use adb tool on SAMSUNG GALAXY?

[johnny]

I'm running into the same problem but i have Vodafone's Htc Magic...do
i require a different version of the adb tool as well?

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[android-developers] Re: File Browser Integration

[johnny]

Thank you very much!!

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[android-developers] View Files on a remove server/PC

[johnny]

Is anyone aware of a way to view the directory structure and files on
a remote server or PC? Is there an existing app for this?

Thanks in advance!
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[android-developers] Re: how can i install App in the sdcard?

[johnny]

have you tried this?

http://androidforums.com/android-tips-tricks/5316-running-apps-sd-card-now-easier.html



On Aug 18, 12:27 pm, zeeshan  wrote:
> Hi Experts,
>
> i am trying to installl android app but it gives me insufficient
> memory exception.
> i already have 35 Apps and there is 5mb internal storage left.
>
> is that mean i can install applications only upto 125MB.
>
> my sdcard is almost empty , is there any way to install my App in the
> sdcard?
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[android-developers] View Files on a remove server/PC

[johnny]

Hi,

I'm looking for a solution to view and select files residing on a
remote server or PC. Is there a "known" way to do this or better yet,
an existing application which does this with an intent which I can
utilize?

Thanks!
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[android-developers] Re: View Files on a remove server/PC

[johnny]

Thanks for your reply. I should have been more clear. Yes, i'm trying
to view files from my android device. Hmm, i hadn't thought about
SugarSync. I was thinking more along the lines of some sort of file
system explorer for a remote location - an FTP server. Connect to the
server and view the directory structure and it's files.

Thanks,

- Johnny

On Jul 30, 9:36 am, "Yusuf T. Mobile"  wrote:
> Are you trying to viewremotefiles on a PC from another PC? In that
> case WinSCP is a good way.
>
> If you are using a non-Windows machine, then scp is the command-line
> version that ships with most unix distributions, include OSX.
>
> If by change you are trying to viewremotefiles with your Android
> phone, then SugarSync is one application you can use.Or are you trying
> to do this programmatically?
>
> Yusuf Saib
> Android
> ·T· · ·Mobile· stick together
> The views, opinions and statements in this email are those of the
> author solely in their individual capacity, and do not necessarily
> represent those of T-Mobile USA, Inc.
>
> On Jul 28, 12:14 pm, Gopal Biyani  wrote:
>
>
>
> > Just google for WinSCP.
>
> > On Tue, Jul 28, 2009 at 3:11 PM, johnny  wrote:
>
> > > Is anyone aware of a way to view the directory structure and files on
> > > aremoteserveror PC? Is there an existing app for this?
>
> > > Thanks in advance!
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[android-developers] Re: About SQLite (query)

[Johnny]

You should use

"select * from notes2 where title=\"" + str + "\""

On 5月14日, 上午10时12分, Daehoon Jeon  wrote:
> How to use rawQuery with Variable?
>
> Cursor mCursor = mDb.rawQuery("select * from notes2 where title=\"title1\"",
> null);
> it's worked
> but I want to use variable instead of String... like this
> String str = "title1";
> Cursor mCursor = mDb.rawQuery("select * from notes2 where title= str",
> null);
> it's stopped unexpected. Could anyone tell me how to use?
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[android-developers] Re: problems with my htc magic

[Johnny]

Have you tried this:
http://developer.android.com/guide/developing/device.html#setting-up ?

On May 14, 7:25 am, petunio  wrote:
> Hi everybody
>
> I am trying to install apk's in my new htc magic
>
> I had before a G1 and I didn't found any problem, just doing adb
> install myapp.apk and that's it
>
> now, when I do the same with my htc, it says "error: device not found"
> Also, I noticed that if I type "adb devices", I dont get any device
> shown...
>
> I have also done the following settings in the mobile, with no luck:
>
> settings->applications->unknown sources (checked)
> settings->applications->development->usb debugging (checked)
> settings->applications->development->allow mock locations (checked)
>
> I know that is not a problem with the usb cable, as I have tried a few
> of them, including the one that was working with the G1...
> It could be a problem with the usb drivers, but everything seems fine
> in my device manager...
>
> has anybody come across this problem?
>
> Thanks
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[android-developers] Re: how to know whether an app is installed or not

[Johnny]

Settings -> Applications -> Manage Applications

On May 14, 10:53 am, android app  wrote:
> how to know whether an app is installed or not?
>
> Can an app access the list of application in "My Downloads"?
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[android-developers] Re: where to download android 1.5 r1 source code ?

[Johnny]

I'm afraid you'll have to get familiar with git and repo.

If you want to work with the source code.

There is nowhere to find a single zip file of the source code, that's
a too old way for code distributions.

On May 14, 10:51 am, rain  wrote:
> I know I can find the source code 
> fromhttp://android.git.kernel.org/?p=platform/frameworks/base.git;a=summary
>
> but I'm not familiar with git, don't know how to download it from
> there.
>
> where to find a zip archive file about the source code?
>
> I donot know why the sdk don't contain the source code.
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[android-developers] Re: how to know whether an app is installed or not

[Johnny]

Yes, as Jeff suggested, PackageManager#getInstalledApplication and
getInstalledPackages is what you need.

On May 14, 11:00 am, android app  wrote:
> I mean programatically in an application.
>
> How to write code in an application to know whether another app is
> installed or not?
>
> Thanks
>
> On May 13, 10:57 pm, Johnny  wrote:
>
> > Settings -> Applications -> Manage Applications
>
> > On May 14, 10:53 am, android app  wrote:
>
> > > how to know whether an app is installed or not?
>
> > > Can an app access the list of application in "My Downloads"?- Hide quoted 
> > > text -
>
> > - Show quoted text -
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[android-developers] Re: ActivityInfo is null in Intrumentation class

[Johnny]

Could you paste also the two manifest file?

On Apr 28, 7:05 pm, "a...@lg"  wrote:
> @Override
>     public void onStart() {
>         super.onStart();
> _intent = new Intent(Intent.ACTION_MAIN);
> _intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
> _intent = _intent.setClass(getTargetContext(), ClassUnderTest.class);
> ActivityInfo ai = _intent.resolveActivityInfo(getTargetContext
> ().getPackageManager(), 0);
>         if (ai != null) {
>                    ClassUnderTest activity = (ClassUnderTest)
> startActivitySync(_intent);
>         }
>
> }
>
> This a part of my code in my Instrumentation class. Earlier, i got a
> run time Exception,Quote:
> java.lang.RuntimeException: Unable to resolve activity for: Intent
> { flags=0x1000 comp={com.android.test.ui/
> com.android.test.ui.ClassUnderTest} }.
>
> Later on, i checked the activity info which is always null. How to set
> the ActivityInfo..? What is required to update in the code?
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[android-developers] Re: how to know whether an app is installed or not

[Johnny]

I think the results from the PackageManager is accurate.

The "My Downloads" is propobably saved the downloaded info in its own
provider.

One test, can you launch the application from "My Downloads" after
uninstall it?

On May 14, 11:07 am, android app  wrote:
> Thanks, Jeff.
>
> Can an app know whether another app was installed if it was
> uninstalled and is still in the "My Downloads" list?  A purchased
> application will still in the list of "My Downloads" even after it is
> uninstalled.
>
> On May 13, 11:00 pm, android app  wrote:
>
> > I mean programatically in an application.
>
> > How to write code in an application to know whether another app is
> > installed or not?
>
> > Thanks
>
> > On May 13, 10:57 pm, Johnny  wrote:
>
> > > Settings -> Applications -> Manage Applications
>
> > > On May 14, 10:53 am, android app  wrote:
>
> > > > how to know whether an app is installed or not?
>
> > > > Can an app access the list of application in "My Downloads"?- Hide 
> > > > quoted text -
>
> > > - Show quoted text -- Hide quoted text -
>
> > - Show quoted text -
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[android-developers] Re: TouchUtils.tapView doesn't work.

[Johnny]

Is there anyone has an idea about this please?

On May 26, 6:06 pm, Johnny Lee  wrote:
> Hi,
>
> When I'm using theTouchUtils.tapView in my instrumentation tests, it
> doesn't work. Here is the code snip:
> """
>         final TextView popupText = new TextView(mActivity);
>         popupText.setText("Popup Text");
>         popupText.setBackgroundColor(0xffff);
>         popupText.setFocusableInTouchMode(true);
>         popupText.setOnTouchListener(new OnTouchListener() {
>
>                         public boolean onTouch(View v, MotionEvent event) {
>                                 Log.d("PopupWindowTest", 
> "popupText::onTouch>> event: " + event);
>
>                                 return false;
>                         }
>
>         });
>
>         mPopupWindow = new PopupWindow(mActivity);
>         mPopupWindow.setContentView(popupText);
>         mPopupWindow.setWidth(50);
>         mPopupWindow.setHeight(50);
>         mPopupWindow.setOutsideTouchable(true);
>         // FIXME:
>         //   This is weird, but the touch interceptor only works when
>         //       the background drawable is not null.
>         mPopupWindow.setBackgroundDrawable(new BitmapDrawable());
>
>         MockOnTouchListener onTouchListener = new MockOnTouchListener();
>         mPopupWindow.setTouchInterceptor(onTouchListener);
>
>         runTestOnUiThread(new Runnable() {
>             public void run() {
>                 if (mPopupWindow == null || mPopupWindow.isShowing()) {
>                     return;
>                 }
>
>                 mPopupWindow.showAsDropDown(mActivity.getUpperView());
>                 assertTrue(mPopupWindow.isShowing());
>             }
>         });
>
>        TouchUtils.tapView(this, popupText);
>         mInstrumentation.waitForIdleSync();
>         Thread.sleep(3000);
>         assertEquals(1, onTouchListener.getOnTouchCalledCount());
> """
>
> I've already declared the android.permission.INJECT_EVENTS in my
> manifest, and this permission has been granted sucessfully. But it
> seems the tapView didn't work at all.
>
> I've also tried to touch the poped out window manually, and it works.
>
> Do you have any idea about this? Thanks for your help and consideration.
>
> Regards,
> Johnny
> --
> we all have our crosses to bear
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[android-developers] BroadcastReceiver::onReceive Question

[Johnny]

Hi All,

I am trying to develop a feature for my Android phone. Basically, I'd
like to export some files whenever a sdcard is inserted into the
phone.

So, I had a broadcast receiver registered to the system. I override
the onReceive (Context, Intent) function such that I can create a file
in the SDCard.

What I can not figure out is how to create a file with the 'Context'
variable passed in from the 'onReceive'. I know I can create a private
file with this 'Context' variable but I just don't know how to use
this 'Context' to create an external file.

I have added the permission for my service in the manifest file
already, that is the reason why I have to use my service's Context to
create the file.

Any one knows how to create an external file stream using the
'Context'?

Thanks and have a good one.
-Johnny

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[android-developers] Re: TextView visibility problem

[Johnny]

I'm not at home right now so I can't test it, maybe tomorrow: swap the
root linear layout for a relative layout. Move up the TextView, set
its alignBottom to the root RelativeLayout and set its height to
wrap_content. Then configure your inner RelativeLayout's alignBottom
to the TextView. Its height should be set to fill_parent. I could post
the code and some links tomorrow.

On Oct 20, 4:07 pm, sisko  wrote:
> I had began with the layout_width set to wrap_content but it did not
> have the desired effect.
> I'll admit I don't fully understand the layout concepts so I'm
> experienting alot.
>
> Any good material that can bring me up to speed is welcome, please!
>
> On 19 Oct, 15:50, letlite  wrote:
>
>
>
> > The default orientation for LinearLayout is horizontal. It looks odd
> > that the last TextView view has android:layout_width="fill_parent".
>
> > On Oct 18, 2:43 pm,sisko wrote:
>
> > > Hi guys,
>
> > > the code I pasted below works great with the exception of the last
> > > view - the textView.
>
> > > The TextView does not display:
>
> > >  > >         xmlns:android="http://schemas.android.com/apk/res/android";
> > >         android:id="@+id/LinearLayout01"
> > >         android:background="@drawable/bkgrnd"
> > > android:layout_height="fill_parent"
> > > android:layout_width="fill_parent">
> > >          > >                 android:id="@+id/RelativeLayout01"
> > >                 android:layout_width="wrap_content"
> > > android:layout_height="wrap_content">
> > >                          > >                                 android:id="@+id/ImageView01"
> > >                                 android:layout_width="wrap_content"
> > >                                 android:layout_height="wrap_content"
> > >                                 android:background="@drawable/quizicon"
> > >                                 android:layout_alignParentLeft="true"
> > >                                 android:layout_alignParentTop="true">
> > >                         
> > >                          > >                                 android:id="@+id/TextView01"
> > >                                 android:layout_width="wrap_content"
> > >                                 android:layout_height="wrap_content"
> > >                                 android:text="@string/help"
> > >                                 android:layout_alignParentTop="true"
> > >                                 android:layout_centerHorizontal="true"
> > >                                 android:textSize="@dimen/menuxmlTitleSize"
> > >                                 
> > > android:textColor="@color/menuxmlTitleColor">
> > >                         
> > >                          > >                                 android:id="@+id/ImageView02"
> > >                                 android:layout_width="wrap_content"
> > >                                 android:layout_height="wrap_content"
> > >                                 android:background="@drawable/quizicon"
> > >                                 android:layout_alignParentRight="true"
> > >                                 android:layout_alignParentTop="true">
> > >                         
>
> > > 
> > >  > > android:text="@+id/TextView02"
> > > android:id="@+id/TextView_HelpText"
> > > android:layout_width="fill_parent"
> > > android:layout_height="wrap_content">
> > > 
> > > 
>
> > > I had a similar problem which came down to an XML layout issue and I'm
> > > sure it's a similar issue here only I don't know how to resolve it.
>
> > > Can someone please help and tell me how I can get the TextView to
> > > display and perhaps more importantly, direct me to some good android
> > > xml layout material?
>
> > > Thanks.

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[android-developers] Re: Regarding sync contacts with Facebook

[Johnny]

have you got the answer? Actually I am also wanted to do similar task.

On Wednesday, February 1, 2012 12:24:56 PM UTC+5:30, Raghupal Reddy wrote:
>
> Hi all, 
>
> In my project I want to sync phone book contacts with Facebook. Is It 
> possible using SyncAdapter , I am developing using GingerBread, if 
> anyone knows thistell me the procedure to develop. 
> Thanks in advance

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[android-developers] Re: Android Contacts backup and sync application

[Johnny]

Have you got the solution? Actually I am also trying to do this task.

On Thursday, March 31, 2011 5:55:01 PM UTC+5:30, UD wrote:
>
> Hi,
>
> I am working on a contacts backup and sync.
>
> The target is to send all details of all contacts to a server (custom 
> protocol defined) as a backup.
>
> During initial launch of application, all the contacts will be queued and 
> sent to the server. And after that, a background service will be running 
> all time which will listen to new contact addition/ contact update, and 
> this new/updated contact will be sent to server by the background service.
>
> I am using 
> RawContactsEntity
>  for 
> fetching the records.
>
> I tried using ContentObserver on RawContacts/Data tables to get 
> notification of contact addition or contact-change. But, AFAIK, the 
> ContentObserver gives notification (onChange()) of changed data in table 
> as a whole and not ID of individual record.
>
> Now my problem is, how to get the exact id's of changed/new records?
>
> I thought of creating a backup-table to compare with native contacts table 
> and get the changed records. But as the number of contacts increase, the 
> performance will decease drastically and this will hamper the battery life 
> too.
>
> Can you suggest me, The best way for achieving this contacts backup 
> operation from performance and memory usage point of view? Is there any 
> other way for contacts sync operation?
>
> It would be very helpful if anyone can share examples which can help me in 
> this.
>
> --
> Regards,
> *Udayan  Warnekar*
>
>
>  

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[android-developers] Re: Sync contacts

[Johnny]

have you got the answer? Actually I am also trying to do this task.

On Tuesday, May 8, 2012 1:51:50 PM UTC+5:30, Tarilo wrote:
>
> Hi
>  
> We need to implement a contact sync. When a contact is adden on the phone 
> or updated, we need to make action. This is implemented by whatsapp. I read 
> about intents.
>  
> Thanks
>  
>

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[android-developers] Android 4.0 Start service on reboot

[Johnny]

Hello,

Does anyone have a code example of starting a service with a broadcast
receiver using Android 4.0. Right now the same code that works on
Android Honeycomb does not work on 4.0. This code is a simple xml
based broadcast receiver.

Thanks in advance!

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[android-developers] Re: Android 4.0 Start service on reboot

[Johnny]

Found the sound of the post; The user just needs to start the app
once. From the point forward; on reboot code works as expected; is
that correct?

On Mar 20, 6:15 am, Mark Murphy  wrote:
> Your code probably does work on 4.0.
>
> However, the user will have to launch one of your activities before
> you will start to receive any broadcasts, including BOOT_COMPLETED:
>
> http://commonsware.com/blog/2011/07/13/boot-completed-regression-conf...
>
>
>
>
>
>
>
>
>
> On Tue, Mar 20, 2012 at 1:00 AM, Johnny  wrote:
> > Hello,
>
> > Does anyone have a code example of starting a service with a broadcast
> > receiver using Android 4.0. Right now the same code that works on
> > Android Honeycomb does not work on 4.0. This code is a simple xml
> > based broadcast receiver.
>
> > Thanks in advance!
>
> > --
> > You received this message because you are subscribed to the Google
> > Groups "Android Developers" group.
> > To post to this group, send email to android-developers@googlegroups.com
> > To unsubscribe from this group, send email to
> > android-developers+unsubscr...@googlegroups.com
> > For more options, visit this group at
> >http://groups.google.com/group/android-developers?hl=en
>
> --
> Mark Murphy (a Commons 
> Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy
>
> Warescription: Three Android Books, Plus Updates, One Low Price!

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[android-developers] want to be a game programmer.

[Johnny]

Is it necessary to learn NDK for game programming. if yes , How do I start? 
 where can i get the resources and sample programmer? .
Please suggest me.
Thanks in advance.

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Re: [android-developers] want to be a game programmer.

[Johnny]

Thanks for reply, I agreed with this sentences."There are no *good*programmers 
who dont know how to use Google!!" . But I am not getting the 
good resource what I want. thatswhy I am posting my question here.

If you can help me out, I am very garteful to all.




On Sunday, August 18, 2013 1:00:59 PM UTC+5:30, Piren wrote:
>
> You should follow this group more closely... evidence show the contrary 
> ;-) 
> I'm more inclined to: "There are no *good* programmers who dont know how 
> to use Google!!  :-D
>
>
> as for the OP: No, not necessary. 
>
> On Saturday, August 17, 2013 12:21:20 PM UTC+3, Paul-Peter Tournaris wrote:
>>
>> There are no programmers who dont know how to use Google!!
>>
>>
>>
>> On Sat, Aug 17, 2013 at 11:14 AM, Johnny  wrote:
>>
>>> Is it necessary to learn NDK for game programming. if yes , How do I 
>>> start?  where can i get the resources and sample programmer? .
>>> Please suggest me.
>>> Thanks in advance.
>>>
>>> -- 
>>> You received this message because you are subscribed to the Google
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>>> an email to android-developers+unsubscr...@googlegroups.com.
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>>>
>>
>>
>>
>> -- 
>> *Παύλος-Πέτρος Τουρνάρης*
>> *Android  & Software Developer*
>>
>>- *http://goo.gl/TsJ8u*
>>- *http://acschedule.org*
>>
>> 

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Re: [android-developers] want to be a game programmer.

[Johnny]

 
 I want to do game programming through OpenGL ES in Android, Actually I am 
a Android Developer. Want to shift in Gaming. 
 
 I asked about NDK becaust I think its good for fast rendering in c/c++ 
compare to java. Am I right?

 But not getting good stuff.
 
 Any Suggestion or any good links..

On Tuesday, August 20, 2013 7:35:43 PM UTC+5:30, carol wrote:
>
> I started out using AndEngine. It's free, there are some samples and 
> tutorials out there. I do recommend reading the book AndEngine for Android 
> Game Development.
>
>
> On Tue, Aug 20, 2013 at 9:26 AM, Rafael Maas 
> > wrote:
>
>> Hi johnny!
>>
>> You can try Corona (http://www.coronalabs.com/) to 2d 
>> game development or Unity (http://unity3d.com/) , project (anarchy 
>> http://www.projectanarchy.com/) to 3d game development. :D
>>
>>
>> 2013/8/20 Michael Banzon >
>>
>>> Game programming is all fun and dandy... But the question that pops into 
>>> my mind is: What great game idea do you have? ;-)
>>>
>>> Secondly: If the quest is to make a fantastic game you could start with 
>>> the Unity engine (or something like it) and don't concentrate that much 
>>> about the platform before you get to "know game development".
>>>
>>>
>>> On Tue, Aug 20, 2013 at 9:10 AM, Johnny 
>>> > wrote:
>>>
>>>>
>>>> Thanks for reply, I agreed with this sentences."There are no 
>>>> *good*programmers who dont know how to use Google!!" . But I am not 
>>>> getting the 
>>>> good resource what I want. thatswhy I am posting my question here.
>>>>
>>>> If you can help me out, I am very garteful to all.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Sunday, August 18, 2013 1:00:59 PM UTC+5:30, Piren wrote:
>>>>>
>>>>> You should follow this group more closely... evidence show the 
>>>>> contrary ;-) 
>>>>> I'm more inclined to: "There are no *good* programmers who dont know 
>>>>> how to use Google!!  :-D
>>>>>
>>>>>
>>>>> as for the OP: No, not necessary. 
>>>>>
>>>>> On Saturday, August 17, 2013 12:21:20 PM UTC+3, Paul-Peter Tournaris 
>>>>> wrote:
>>>>>>
>>>>>> There are no programmers who dont know how to use Google!!
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Sat, Aug 17, 2013 at 11:14 AM, Johnny  wrote:
>>>>>>
>>>>>>> Is it necessary to learn NDK for game programming. if yes , How do I 
>>>>>>> start?  where can i get the resources and sample programmer? .
>>>>>>> Please suggest me.
>>>>>>> Thanks in advance.
>>>>>>>
>>>>>>> -- 
>>>>>>> You received this message because you are subscribed to the Google
>>>>>>> Groups "Android Developers" group.
>>>>>>> To post to this group, send email to android-d...@googlegroups.com
>>>>>>> To unsubscribe from this group, send email to
>>>>>>> android-developers+**unsubscr...@googlegroups.com
>>>>>>> For more options, visit this group at
>>>>>>> http://groups.google.com/**group/android-developers?hl=en<http://groups.google.com/group/android-developers?hl=en>
>>>>>>> --- 
>>>>>>> You received this message because you are subscribed to the Google 
>>>>>>> Groups "Android Developers" group.
>>>>>>> To unsubscribe from this group and stop receiving emails from it, 
>>>>>>> send an email to android-developers+**unsubscr...@googlegroups.com.
>>>>>>> For more options, visit 
>>>>>>> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out>
>>>>>>> .
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> -- 
>>>>>> *Παύλος-Πέτρος Τουρνάρης*
>>>>>> *Android  & Software Developer*
>>>>>>
>>>>>>- *http://goo.gl/TsJ8u*
>>>>>>- *http://acschedule.org*
>>>>>>
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[android-developers] Implementing WiFi proxy support in the master branch

[Johnny]

Hi everyone,

I am a CS student and pursuing my Bachelors degree, currently in the
3rd year. I will have some university free time in the following weeks
thanks to the winter break. I would like to implement WiFi proxy
support on Android. If I do so, are there any plans to merge it into
Eclari, Froyo and Gingerbread?

A previous bugfix of mine was merged into the Master branch long ago,
but I haven't seen the fix in the latest Froyo update. Should I
request a merge into the Froyo branch or should I switch to the Froyo
branch and commit the same changes?

Kind regards,
Janos "Johnny" Levai

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[android-developers] Re: Implementing WiFi proxy support in the master branch

[Johnny]

I should have posted this message on android-contrib. Nevermind :)

On Dec 14, 1:58 pm, Johnny  wrote:
> Hi everyone,
>
> I am a CS student and pursuing my Bachelors degree, currently in the
> 3rd year. I will have some university free time in the following weeks
> thanks to the winter break. I would like to implement WiFi proxy
> support on Android. If I do so, are there any plans to merge it into
> Eclari, Froyo and Gingerbread?
>
> A previous bugfix of mine was merged into the Master branch long ago,
> but I haven't seen the fix in the latest Froyo update. Should I
> request a merge into the Froyo branch or should I switch to the Froyo
> branch and commit the same changes?
>
> Kind regards,
> Janos "Johnny" Levai

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[android-developers] Problem with getting GPS data when using Camera

[Johnny]

Hi,

  I have a similar problem as this link mention (Problem with
getting GPS data when using CameraPreview:):

http://stackoverflow.com/questions/3950026/problem-with-getting-gps-data-when-using-camerapreview

The problem is: the GPS will stop receiving data if you turn on the
camera  !


I wrote a simple code to test the conflict as follows:

package com.example.helloandroid;
import android.app.Activity;
import android.content.Context;
import android.hardware.Camera;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
public class HelloAndroid extends Activity
{
LocationManager mlocManager;
LocationListener mlocListener;
Camera camera;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

/* Use the LocationManager class to obtain GPS
locations */
mlocManager =
(LocationManager)getSystemService(Context.LOCATION_SERVICE);
mlocListener = new MyLocationListener();
 
mlocManager.requestLocationUpdates( LocationManager.GPS_PROVIDER, 0,
0, mlocListener);

camera = Camera.open();// This is just for test, if
you comment this line, the GPS will work
}

@Override
protected void onDestroy()
{
mlocManager.removeUpdates(mlocListener);
super.onDestroy();
}

/* Class My Location Listener */
public class MyLocationListener implements LocationListener
{
public void onLocationChanged(Location loc)
{
String Text = "My current location is:\n" +
"Latitud = " + loc.getLatitude() + "\nLongitud = " + loc.getLongitude()
+ "\nAccuracy = "+ loc.getAccuracy();
 
Toast.makeText(getApplicationContext(),Text,Toast.LENGTH_SHORT).show();
Log.d("GPS", "getSpeed = " + loc.getSpeed()+"
Latitud = " + loc.getLatitude()+" Longitud = " + loc.getLongitude());
}

public void onProviderDisabled(String provider)
{
Toast.makeText(getApplicationContext(),"Gps
Disabled",Toast.LENGTH_SHORT ).show();
}

public void onProviderEnabled(String provider)
{
Toast.makeText(getApplicationContext(),"Gps
Enabled",Toast.LENGTH_SHORT).show();
}

public void onStatusChanged(String provider, int
status, Bundle extras){}
 }
}



 Anyone have solution?  I appreciate your help.

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[android-developers] Problem with getting GPS data when using Camera

[Johnny]

Similar to this problem:
http://stackoverflow.com/questions/3950026/problem-with-getting-gps-data-when-using-camerapreview

Any suggestion about the conflicts between using GPS and Camera?

The following is a code to test the conflict.

package com.example.helloandroid;
import android.app.Activity;
import android.content.Context;
import android.hardware.Camera;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
public class HelloAndroid extends Activity
{
LocationManager mlocManager;
LocationListener mlocListener;
Camera camera;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

/* Use the LocationManager class to obtain GPS locations */
mlocManager =
(LocationManager)getSystemService(Context.LOCATION_SERVICE);
mlocListener = new MyLocationListener();
mlocManager.requestLocationUpdates( 
LocationManager.GPS_PROVIDER, 0,
0, mlocListener);

camera = Camera.open();// If you comment this line, the GPS will
work
}

@Override
protected void onDestroy()
{
mlocManager.removeUpdates(mlocListener);
super.onDestroy();
}

/* Class My Location Listener */
public class MyLocationListener implements LocationListener
{
public void onLocationChanged(Location loc)
{
String Text = "My current location is:\n" + 
"Latitud = " +
loc.getLatitude() + "\nLongitud = " + loc.getLongitude()+ "\nAccuracy
= "+ loc.getAccuracy();

Toast.makeText(getApplicationContext(),Text,Toast.LENGTH_SHORT).show();
Log.d("GPS", "getSpeed = " + loc.getSpeed()+" Latitud = 
" +
loc.getLatitude()+" Longitud = " + loc.getLongitude());
}

public void onProviderDisabled(String provider)
{
Toast.makeText(getApplicationContext(),"Gps
Disabled",Toast.LENGTH_SHORT ).show();
}

public void onProviderEnabled(String provider)
{
Toast.makeText(getApplicationContext(),"Gps
Enabled",Toast.LENGTH_SHORT).show();
}

public void onStatusChanged(String provider, int status, Bundle
extras){}
}
}

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[android-developers] Stagefright: unable to set frame rate

[Johnny]

hi,

I have an application streaming video from the device to a remote
computer. When trying to set the frame rate I keep getting:
ERROR/StagefrightRecorder(131): Failed to set frame rate to 15 fps.
The actual frame rate is 30

The code I use is:
video = new MediaStreamer();
video.setVideoSource(MediaRecorder.VideoSource.CAMERA);
video.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
video.setVideoFrameRate(frameRate);

Any ideas on how to fix this?

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[android-developers] Is there a way to backup and restore a Cursor?

[Johnny Lee]

Hello all,

I'm always get stuck when I want to do some testing with my Classes  
which are working against the default providers.

For example, one method of my class meant to get all audio from  
MediaStore.Audio.Media.EXTERNAL_CONTENT_URI.

That's ok for implementation, but when I want to test it, problem comes.

I want to insert a data into  
MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, and get all audio from it  
to see whether the data I inserted has been got by my method.

In order not to break the existed data on emulator/device, I want to  
back up the data first.

But when I look at the Cursor returned by query that URI, I found  
there are 27 columns!
Even I can list these columns and get the correct data to backup,  
there is still a problem of maintenance of this test.

At first I tried to use getBlob to get data from each column, but the  
SQL checks failed.

Is there a way to easy back the data from a cursor?

Thanks for your consideration,
Johnny
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[android-developers] How to get the resource ID from android.content.res.Resources.Theme

[Johnny Lee]

Hi,

I'm wondering whether there is a way to get the resource ID of an Theme object?

I tried the following:
mContextWrapper.setTheme(com.android.internal.R.style.Theme);
Theme theme = mContextWrapper.getTheme();
Log.d("ContextWrapperTest", "Resource ID: " +
com.android.internal.R.style.Theme);
Log.d("ContextWrapperTest", "Theme hash code: " + theme.hashCode());

But got:
05-19 08:48:29.314 D/ContextWrapperTest(  559): Resource ID: 16973829
05-19 08:48:29.314 D/ContextWrapperTest(  559): Theme hash
code: 1129730008

The things I want to do here is trying to back up the original Theme
before playing with several other themes.

But after I get the original theme, I found there is no way to set
back this theme.

Do you have any ideas on this?

Regards,
Johnny

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[android-developers] Re: Camera application 1.5 on emulator does nothing

[Johnny Song]

you must make sure that you have already implemented libcamera in your
source code.

2009/5/22 arnouf 

>
> Hi all,
>
> Strange behaviour with emulator running with Cupcake.
> When emulator is launched (via ADT), a SD card is mounted correctly,
> and I click on Camera, I have a black screen and nothing happens, I
> got the famous error with Wait or Force closewait, wait,
> waitnothing happens.
>
> I create with AVD the target 3.
>
> I'm on Windows XP SP2.
> >
>

Best Regards,
Johnny Song

>From China.

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[android-developers] Can't intercept the OnTouch event of PopupWindow

[Johnny Lee]

Hi all,

I want to intercept the OnTouch event in a PopupWindow, but it failes
everytime. Here is the code snip:

public class Demo extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

// Prepare the popup window
final TextView popupText = new TextView(this);
popupText.setText("Poping up...");
popupText.setBackgroundColor(Color.BLUE);
popupText.setFocusableInTouchMode(true);

final PopupWindow popupWindow = new PopupWindow(this);
popupWindow.setContentView(popupText);
popupWindow.setWidth(100);
popupWindow.setHeight(100);
popupWindow.setBackgroundDrawable(null);
popupWindow.setOutsideTouchable(true);
popupWindow.setTouchInterceptor(new OnTouchListener() {

public boolean onTouch(View v, MotionEvent event) {
Log.d("Demo", "popupWindow::onTouch >>> view: " 
+ v + ", event: " + event);
return false;
}

});

// Prepare the activity view
final LinearLayout layout = new LinearLayout(this);
layout.setOrientation(LinearLayout.VERTICAL);
layout.setOnTouchListener(new OnTouchListener() {

public boolean onTouch(View v, MotionEvent event) {
Log.d("Demo", "layout::onTouch >>> view: " + v 
+ ", event: " + event);
return false;
}

});

final TextView backgroundView = new TextView(this);
backgroundView.setWidth(240);
backgroundView.setHeight(300);
backgroundView.setBackgroundColor(Color.RED);
layout.addView(backgroundView);

final Button button = new Button(this);
button.setWidth(240);
button.setHeight(20);
button.setOnClickListener(new OnClickListener() {

public void onClick(View v) {
popupWindow.showAsDropDown(backgroundView);
}

});
layout.addView(button);

setContentView(layout);
}

When the activity started, I can click the button to show the popup
window correctly. But after that, nothing happens when I touch the
popup window's view. But if I touch any where outside the popup
window, the log
Log.d("Demo", "layout::onTouch >>> view: " + v + ", event: " + event);
will work.

It looks like when I touch the view of the popup window, the touch
event has been consumed somewhere?

Do you have any ideas on this? Thanks for your consideration.

Regards,
Johnny
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[android-developers] Re: Can't intercept the OnTouch event of PopupWindow

[Johnny Lee]

Found the problem.

After looking at the source code of PopupWindow, I found the
TouchInteceptor will only be called if the background drawable is not
null. Here is the snip:
private void preparePopup(WindowManager.LayoutParams p) {
if (mBackground != null) {
//...
PopupViewContainer popupViewContainer = new
PopupViewContainer(mContext);
// ...

mPopupView = popupViewContainer;
} else {
mPopupView = mContentView;
}
// ...
}

And the mTouchInterceptor.onTouch will only be called inside the
PopupViewContainer.

So in my code, after I set the background drawable to whatever, (I
used new BitmapDrawable()), the touch event will be intercepted here.

However, I still don't understand why this method only works when
there is a background drawable, here is what's said in doc:
"""
public void setTouchInterceptor (View.OnTouchListener l)

Set a callback for all touch events being dispatched to the popup window.
"""

Regards,
Johnny

On Tue, May 26, 2009 at 3:21 PM, Johnny Lee  wrote:
> Hi all,
>
> I want to intercept the OnTouch event in a PopupWindow, but it failes
> everytime. Here is the code snip:
>
> public class Demo extends Activity {
>
>       �...@override
>        protected void onCreate(Bundle savedInstanceState) {
>                super.onCreate(savedInstanceState);
>
>                // Prepare the popup window
>                final TextView popupText = new TextView(this);
>                popupText.setText("Poping up...");
>                popupText.setBackgroundColor(Color.BLUE);
>                popupText.setFocusableInTouchMode(true);
>
>                final PopupWindow popupWindow = new PopupWindow(this);
>                popupWindow.setContentView(popupText);
>                popupWindow.setWidth(100);
>                popupWindow.setHeight(100);
>                popupWindow.setBackgroundDrawable(null);
>                popupWindow.setOutsideTouchable(true);
>                popupWindow.setTouchInterceptor(new OnTouchListener() {
>
>                        public boolean onTouch(View v, MotionEvent event) {
>                                Log.d("Demo", "popupWindow::onTouch >>> view: 
> " + v + ", event: " + event);
>                                return false;
>                        }
>
>                });
>
>                // Prepare the activity view
>                final LinearLayout layout = new LinearLayout(this);
>                layout.setOrientation(LinearLayout.VERTICAL);
>                layout.setOnTouchListener(new OnTouchListener() {
>
>                        public boolean onTouch(View v, MotionEvent event) {
>                                Log.d("Demo", "layout::onTouch >>> view: " + v 
> + ", event: " + event);
>                                return false;
>                        }
>
>                });
>
>                final TextView backgroundView = new TextView(this);
>                backgroundView.setWidth(240);
>                backgroundView.setHeight(300);
>                backgroundView.setBackgroundColor(Color.RED);
>                layout.addView(backgroundView);
>
>                final Button button = new Button(this);
>                button.setWidth(240);
>                button.setHeight(20);
>                button.setOnClickListener(new OnClickListener() {
>
>                        public void onClick(View v) {
>                                popupWindow.showAsDropDown(backgroundView);
>                        }
>
>                });
>                layout.addView(button);
>
>                setContentView(layout);
>        }
>
> When the activity started, I can click the button to show the popup
> window correctly. But after that, nothing happens when I touch the
> popup window's view. But if I touch any where outside the popup
> window, the log
> Log.d("Demo", "layout::onTouch >>> view: " + v + ", event: " + event);
> will work.
>
> It looks like when I touch the view of the popup window, the touch
> event has been consumed somewhere?
>
> Do you have any ideas on this? Thanks for your consideration.
>
> Regards,
> Johnny
> --
> we all have our crosses to bear
>



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[android-developers] TouchUtils.tapView doesn't work.

[Johnny Lee]

Hi,

When I'm using the TouchUtils.tapView in my instrumentation tests, it
doesn't work. Here is the code snip:
"""
final TextView popupText = new TextView(mActivity);
popupText.setText("Popup Text");
popupText.setBackgroundColor(0xffff);
popupText.setFocusableInTouchMode(true);
popupText.setOnTouchListener(new OnTouchListener() {

public boolean onTouch(View v, MotionEvent event) {
Log.d("PopupWindowTest", "popupText::onTouch>> 
event: " + event);

return false;
}

});

mPopupWindow = new PopupWindow(mActivity);
mPopupWindow.setContentView(popupText);
mPopupWindow.setWidth(50);
mPopupWindow.setHeight(50);
mPopupWindow.setOutsideTouchable(true);
// FIXME:
//   This is weird, but the touch interceptor only works when
//   the background drawable is not null.
mPopupWindow.setBackgroundDrawable(new BitmapDrawable());

MockOnTouchListener onTouchListener = new MockOnTouchListener();
mPopupWindow.setTouchInterceptor(onTouchListener);

runTestOnUiThread(new Runnable() {
public void run() {
if (mPopupWindow == null || mPopupWindow.isShowing()) {
return;
}

mPopupWindow.showAsDropDown(mActivity.getUpperView());
assertTrue(mPopupWindow.isShowing());
}
});

TouchUtils.tapView(this, popupText);
mInstrumentation.waitForIdleSync();
Thread.sleep(3000);
assertEquals(1, onTouchListener.getOnTouchCalledCount());
"""

I've already declared the android.permission.INJECT_EVENTS in my
manifest, and this permission has been granted sucessfully. But it
seems the tapView didn't work at all.

I've also tried to touch the poped out window manually, and it works.

Do you have any idea about this? Thanks for your help and consideration.

Regards,
Johnny
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[android-developers] Unsure of SimpleCursorAdapter ? Need help

[Johnny Zen]

Hi all

Can I use the SimpleCursorAdapter to display data in textview rather
than a list??

Bit confused if the SimpleCursorAdapter is only used for displaying a list.

Do I need a custom Adapter called "TextViewAdapter" ?

I am trying to add some data from a linked table from a database into
an existing layout using a cursor. Think I have gotton myself all
confused.

Can anyone help me ?


Thanks


Johnny

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[android-developers] Issue with Catch Handler

[Johnny Molina]

Hello,

I have recently hit a snag using the Android plugin to Eclipse. For
some reason, ALL of my errors being thrown don't initialize and show
me the error. Has anyone ever seen this issue before and if so, what
did you do to correct it?

In particular, I am seeing it when I try to invoke the HTTPGet in a
HTTPClient object. If I have no connectivity, then I should get an
error. The Catch block does fire when this occurs...however, when I
check my general Exception object, the object is NULL (NULL Pointer).
Why would this happen if the catch is grabbing the exception?

My exceptions used to be workingand I was able to see the stack
trace. However, I can no longer see any stack trace regardless of the
Exception class I am using. Can someone please help me understand what
the heck is wrong with Eclipse, Android, or both? Is there something I
am missing on the configuration side?...is this a bug?

Mind you, I have already used Stack Overflow for this question. It has
been viewed 40 times but no answer yet. I hope anybody on here can
help me understand why this is occurring.

Thanks in advance,

John

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[android-developers] Re: Charging for upgrading from free to paid version with new features

[Rev. Johnny Healey]

While it makes sense to me that google would want to disallow people
from offering a free version in the market and then selling a paid
version on their own site without the commission going to google, the
idea that developers can't distribute a free version and then charge
for "content" seems like an overbroad restriction.  For instance: if
amazon offers their mp3 store app for free but charges money to
download songs into it, is that a violation of the terms?  Would they
be forced to first charge their users for the download in order to
then charge them to purchase music?  That seems like a pretty crappy
deal for the user.

Or alternately, what if someone writes an app that plays mp3s and then
runs a site that sells mp3s?  Can they not offer the app for free in
the android market?

I think the actual distribution agreement is vague in this case, and
an interpretation that prevents developers from charging for content
seems to forbid a business model that makes a lot of sense.

-Rev. Johnny Healey

On Feb 17, 7:09 pm, "David McLaughlin (Android Advocate)"
 wrote:
> Hi,
>
> You may not add a price to an existing app; instead, you will need to
> upload a new application version and add a price to that. Section 3.3
> states that people who download a free app can not be charged at a
> later date for what they have already downloaded. For example, they
> can't be charged an ongoing subscription fee for additional content.
> However, the user can be redirected back to the market to download a
> "full" version (this would be considered a different version) for a
> price.
>
> Thanks,
> David
>
> On Feb 17, 12:12 pm, Jay-andro  wrote:
>
> > I have a free app on the Market. With paid support finally arriving, I
> > want to be able to charge for my app. I have readied a new version
> > that includes new features. Can I publish this as a version 2.0 and
> > charge for it including to existing users?
>
> >http://market.android.com/support/bin/answer.py?answer=138412&topic=1...
> > says:
> > Please keep in mind, that in accordance with section 3.3 in the
> > Developer Distribution Agreement, any users who installed the free
> > version of your application are entitled to upgrades of that free
> > version for no extra charge.
>
> > However The Distribution Agreement 3.3 says:
> >  You may not collect future charges from users for copies of the
> > Products that those users were initially allowed to download for
> > free.
> > This is not intended to prevent distribution of free trial versions of
> > the Product with an “upsell” option to obtain the full version of the
> > Product: Such free trials for Products are encouraged.
> > -
> > If I release an upgrade that has new features, that is not "copies of
> > the Product that users initially downloaded". It is not a copy, it is
> > a new changed version. I should be able to charge for a version that
> > has new features. But Google seems to want to disallow that citing
> > 3.3
> > which doesn't disallow it in my view.
>
> > Can I charge existing users for upgrades to a version with new
> > features?
> > How do you other developers view this and what are you planning on
> > doing?
> > Jay

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[android-developers] Re: Unified Database Populating Solution

[Rev. Johnny Healey]

If you ever find yourself in need of a Trie, I've implemented one for
lexic and released it under the Apache-2 license:

http://code.google.com/p/lexic/source/browse/#svn/trunk/src/net/healeys/trie

It's capable of supporting multiple dialects and languages.  I've used
it to cram about 80,000 US & UK words into less than 800K.  Reading
the entire trie takes about 30 seconds, but it has the ability to
prune the trie based on 2-letter markov chains to drastically increase
the speed.  It's got a bit of lexic-specific code in it right now, but
I'd be interested in working with anyone who wants to adapt it to
their own project.

-Johnny

On Mar 11, 5:52 am, Al Sutton  wrote:
> http://en.wikipedia.org/wiki/Trie
>
> In my view the best way to do a static dictionary.
>
> Then populate the SQL database with and additions the user makes.
>
> Thing to remember; SQLites' design goals are read/write capabilities.
> That doesn't mean it's using the best way to handle read-only data.
>
> Al.
>
>
>
> Stoyan Damov wrote:
> > On Wed, Mar 11, 2009 at 3:52 AM, Mark Murphy  
> > wrote:
>
> >> Justin Allen Jaynes wrote:
>
> >>> I couldn't deal with a 5 minute startup time on an app, so I decided to
> >>> include the actual database file in my resource raw folder (others
> >>> suggested this to me).
>
> >> One potential flaw with put-the-database-file-in-the-APK approach is
> >> SQLite file format. Suppose Android 1.5 includes an update to SQLite
> >> that causes the SQLite file format to change, such that SQLite cannot
> >> read your binary database file you packaged up? Now your app is "broken"
> >> for newer Android devices.
>
> >> It may be that SQLite will be backwards compatible, or it may be that
> >> this is just unlikely to happen. However, it is a risk developers need
> >> to keep in mind.
>
> > This is not going to happen. If Google rolls out SQLite X.YY and it's
> > incompatible with the database file format used by currently installed
> > apps (some probably paid), would you think that the OTA upgrade will
> > kind of search for all SQLite databases on the device (some might be
> > on the SD card) and offer the user to upgrade them?
>
> >> The same general argument holds true for packaging the data in the form
> >> of SQL statements, though given that SQL is more or less a standard, I
> >> would expect fewer problems this way...performance notwithstanding.
>
> >> Obviously, given the performance characteristics in your case, if SQLite
> >> has to be the answer (see below), then you have no choice but to package
> >> the binary database and pray.
>
> > If I was building a dictionary app and it had to use database and not
> > some other binary format I'd compress a database with non-indexed
> > tables, put it as a resource, then on 1st run inflate it to SD card,
> > and create an index (if that's supported, I'm assuming running an
> > SQLite db off the SD card is). This would decrease my storage
> > requirements to the bare minimum.
>
> >>> (mine is a large word dictionary
> >>> and the whole app after first run takes 4 meg)
>
> >> Another thing to consider with large yet simple database structures is
> >> whether SQLite is the right answer at all. This is particularly true if
> >> the data is read-only or read-mostly. It may be you are better served
> >> finding a Java library implementing a lower-level data structure
> >> (red-black tree, AVL tree, etc.) that is better tuned for your scenario.
> >> You might even find one that can work efficiently with an InputStream,
> >> thereby allowing you to keep the data in the APK without a second copy.
>
> >> For example, when I see "large word dictionary", I think of
> >> spell-checkers, and implementing a spell-checker with a SQLite backend
> >> would seem likely to have poor performance. Of course, then again, it's
> >> been about two decades since I wrote my last spell-checker...
>
> >> --
> >> Mark Murphy (a Commons Guy)
> >>http://commonsware.com
> >> Android Training in Sweden --http://www.sotrium.com/training.php
>
> --
>
> * Written an Android App? - List it athttp://andappstore.com/*
>
> ==
> Funky Android Limited is registered in England & Wales with the
> company number  6741909. The registered head office is Kemp House,
> 152-160 City Road, London,  EC1V 2NX, UK.
>
> The views expressed in this email are those of the author and not
> necessarily those of Funky Android Limited, it's associates, or it's
> subsidiaries.
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[android-developers] Help developing an app

[Johnny Five(5)]

http://therentalsearch.com"; For Rent_The Rental Search
This is the site i am launching, and i am hoping to find some help
getting an app developed for users to browse on their mobile device.
I am adding a QR code for all of the listings as well and hope to
incoprorate that into it.

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