Re: [android-developers] Re: LoaderCallbacks.onLoadFinished unnecessarily called twice when rotating

[Matty]

There's a fair discussion on StackOverflow here:
http://stackoverflow.com/questions/11293441/android-loadercallbacks-onloadfinished-called-twice/22183247

I saw the behavior when re-loading a Fragment in a ViewPager, which may be 
very similar to rotation... Basically, I solved the problem by removing the 
loader when I was done with it: getLoaderManager().destroyLoader(LOADER_ID);



On Monday, July 2, 2012 4:49:50 PM UTC-4, Malcolm Evershed wrote:
>
> Your issue sounds like it could be different than mine since I'm generally 
> seeing onLoadFinished() called in initLoader(). You might want to do more 
> web or StackOverflow searching or search the Android bug database -- I 
> think somewhere I read about a problem where onLoadFinished() would not be 
> called, but I think it only happens if you don't do the stuff that 
> CursorLoader does. In other words, to solve your issue, you might have to 
> copy a bunch of code from CursorLoader.
>
> As to my issue, I never reported it since there didn't seem to be any 
> interest in it. I just worked around it in my app.
>
> Thanks.
>
> On Mon, Jul 2, 2012 at 5:17 AM, szakalinhoPL 
> > wrote:
>
>> Hi, I noticed same situation,  I'm not an expert but it seems like a bug 
>> because behaviour of onLoadFinished is not normal according to 
>> documentation which says that onLoadFinished should be called in 
>> initLoader, but it never does. In very simple application it happens as 
>> well. Did you report it or find out an answer?
>>
>>
>> On Wednesday, April 11, 2012 11:05:41 PM UTC+1, Malcolm Evershed wrote:
>>>
>>> *[My apologies if this is posted twice, it has been a few days and my 
>>> original post didn't show up yet, so I'm attempting to post again]*
>>>
>>>
>>> I think I've found an issue where LoaderManager.LoaderCallbacks.
>>> *onLoadFinished*() will be called unnecessarily twice when rotating the 
>>> device. *Is this expected behavior or should I open a bug?*
>>>
>>>  
>>>
>>> This can easily be reproduced by running *ApiDemos *-> *App *-> *Loader 
>>> *-> *Cursor *(which corresponds to the *LoaderCursor.java* example) and 
>>> rotating the device.
>>>
>>>  
>>>
>>> 1) Here's the first location where onLoadFinished() is called:
>>>
>>>  
>>>
>>> LoaderCursor$CursorLoaderListFragment.onLoadFinished(Loader, Cursor) 
>>> line: 159
>>>
>>> LoaderCursor$CursorLoaderListFragment.onLoadFinished(Loader, Object) 
>>> line: 1
>>>
>>> LoaderManagerImpl$LoaderInfo.callOnLoadFinished(Loader, Object) line: 
>>> 438
>>>
>>> *LoaderManagerImpl$LoaderInfo.reportStart() line: 318 *   
>>>
>>> LoaderManagerImpl.doReportStart() line: 778
>>>
>>> LoaderCursor$CursorLoaderListFragment(Fragment).performStart() line: 
>>> 1534
>>>
>>> FragmentManagerImpl.moveToState(Fragment, int, int, int) line: 
>>> 862
>>>
>>> FragmentManagerImpl.moveToState(int, int, int, boolean) line: 
>>> 1032
>>>
>>> FragmentManagerImpl.moveToState(int, boolean) line: 1014
>>>
>>> FragmentManagerImpl.dispatchStart() line: 1771
>>>
>>> *LoaderCursor(Activity).performStart()* line: 4481
>>>
>>> ActivityThread.performLaunchActivity(ActivityThread$ActivityClientRecord, 
>>> Intent) line: 1929
>>>
>>> ActivityThread.handleLaunchActivity(ActivityThread$ActivityClientRecord, 
>>> Intent) line: 1981
>>>
>>> ActivityThread.handleRelaunchActivity(ActivityThread$ActivityClientRecord) 
>>> line: 3351
>>>
>>> ActivityThread.access$700(ActivityThread, 
>>> ActivityThread$ActivityClientRecord) 
>>> line: 123
>>>
>>> ActivityThread$H.handleMessage(Message) line: 1151
>>>
>>> ActivityThread$H(Handler).dispatchMessage(Message) line: 99
>>>
>>> Looper.loop() line: 137
>>>
>>> ActivityThread.main(String[]) line: 4424
>>>
>>> Method.invokeNative(Object, Object[], Class, Class[], Class, int, 
>>> boolean) line: not available [native method]
>>>
>>> Method.invoke(Object, Object...) line: 511
>>>
>>> ZygoteInit$MethodAndArgsCaller.run() line: 784
>>>
>>> ZygoteInit.main(String[]) line: 551
>>>
>>> NativeStart.main(String[]) line: not available [native method]
>>>
>>>  
>>>
>>> Basically, as the Activity is starting up, *Activity.performStart*() 
>>> calls mFragments.dispatchStart() which eventually calls 
>>> Fragment.performStart(), which then calls mLoaderManager.doReportStart(). 
>>> Ultimately, *LoaderManagerImpl$LoaderInfo.reportStart*() checks if the 
>>> loader has been started and whether *mReportNextStart *is set (it was 
>>> set when Fragment.performDestroyView() was called on the old fragment) and 
>>> then it'll call onLoadFinished().
>>>
>>>  
>>>
>>> 2) Here's the second location where onLoadFinished() is called during 
>>> the same rotation:
>>>
>>>  
>>>
>>> LoaderCursor$CursorLoaderListFragment.onLoadFinished(Loader, Cursor) 
>>> line: 159
>>>
>>> LoaderCursor$CursorLoaderListFragment.onLoadFinished(Loader, Object) 
>>

[android-developers] Re: Problem with adjustPan andadjustResize

[Matty]

If you're currently supporting API 3, I'd try to bump it to API 4, and
see if that helps.  I had some similar issues, and while I lost a
small percentage of device support, it was worth it for the simplicity
of the fix.

On Jan 21, 9:09 am, Alok Kulkarni  wrote:
> Hi.
>  i am having an activity in which i am adding controls such as
> EditText and TextView at runtime in a listiiew.
> What happens is that for the Edittext the keyboard pops up and the
> controls at the bottom of the screen are not visible even when i
> scroll down.So when i add the property
> android:windowSoftInputMode="stateVisible|adjustResize|adjustPan"
> , things work.But suddenly i face the issue that i cannot type in the
> edit text pressing the keyboard.The focus automatically goes out of
> the EditText while typing on the keyboard.I have tried this on Devices
> like Nexus S , Moto Cliq . Both have the same problem.Any ideas.

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[android-developers] Re: change color of Button

[Matty]

I would recommend you specify  drawables in xml for the
background, using  to achieve your gradient.

See some details here:
http://developer.android.com/guide/topics/resources/drawable-resource.html#Shape

Also, you can specify different states, see:
http://developer.android.com/reference/android/content/res/ColorStateList.html





On Jan 19, 5:22 am, "pramod.deore"  wrote:
> Hi, everybody
> I want to change color of button. Now I am done this with
>
> button.getBackground().setColorFilter(new
> LightingColorFilter(0xFF9933, 0x0CC000));
>
> But is it possible to 1)change button color like - At the left top
> corner have dark color and color become faint as we move to the right
> bottom corner.
>
> 2) Can we change the color of border of button?
>
> Thanks

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[android-developers] Re: Beginning?????

[Matty]

I believe this will be useful:
http://insanitydesign.com/wp/projects/nehe-android-ports/



On Jan 14, 5:33 am, Vishal  wrote:
> hii developers...
>
> I am new to this journey and i want to make a 3d game using SDK 1.6
> version...i have installed eclipse and has added android plugin in
> thatcan any body tell me what should i do next for preparing a 3d
> game.i have gone through opengl also

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[android-developers] Re: Leave crashed app

[Matty]

I agree with TreKing.  If you're still very early in the development
process, you should be able to locate the null object and do some
if(obj==null) { } handling to prevent repetitive errors while
debugging/coding.



On Jan 14, 1:06 pm, TreKing  wrote:
> On Fri, Jan 14, 2011 at 2:55 AM, lou  wrote:
> > Else what are best practices to avoid this matter?
>
> Fix the bugs that are causing your app to crash "again and again" when going
> from one Activity to the next.
>
> -
> TreKing  - Chicago
> transit tracking app for Android-powered devices

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[android-developers] Re: How to extend intent

[Matty]

I believe the best way to do what you've described is create your own
Video Player Activity, which can contain a VideoView, and you can add
listeners for most events (like video stopped or ended).

On Oct 6, 5:51 am, zohar lerman  wrote:
> Hi,
>
> I am using the following code to play video:
>
> Intent myIntent = new Intent(Intent.ACTION_VIEW);
> Uri u = Uri.parse(path);
> myIntent.setDataAndType(u, "video/*");
> try {
>
>   context.startActivity(myIntent);} catch (ActivityNotFoundException e) {
>
>         Log.e(TAG, "cannot initiate video", e);
>
> }
>
> Is it possible to extend the intent and add it some abilities such
> as : notify when video complete to play? get user events (stop play
> etc),add new button?
> If yes how?
> I failed to find any example for it
>
> Zohar

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[android-developers] Re: bitmap magnification

[Matty]

I would advise calculating the scale of original image to screen
height/width, and adjusting your inSampleSize accordingly.  When it's
2, you're always loading half of the source bitmap, so if it's huge,
you're still loading half of huge.  You'll want to do something like
options.inSampleSize = srcWidth/screenWidth;
(maybe different, depending on your ratio, and if you want to fill the
screen, etc.  You might also want to round inSampleSize to the nearest
power of 2.

On Oct 4, 5:17 am, n2v2rda2  wrote:
> with imageview and network-thread,i am making live cam-view ,bitmap
> size is "360 240",
> after parsing network-data to bitmap
>                 BitmapFactory.Options options = new BitmapFactory.Options();
>                 options.inSampleSize = 2;
>                 Bitmap orgBitmap = BitmapFactory.decodeByteArray();
>                 Bitmap bitmap = Bitmap.createScaledBitmap(orgBitmap, width, 
> height /
> 2 , true);
>
>                 if (bitmap != null) {
>                         Message msg = Message.obtain(handler, 0, current_ch, 
> 0, bitmap);
>                         handler.sendMessage(msg);
>                  }
>
> send bitmap by Message to ImageView.setImageBitmap(bitmap);
>
> all thing is good ,i can see live-cam
> but, to fit image in screen like "
> Bitmap.createScaledBitmap(orgBitmap, width, height / 2 , true)"
> Seeing bitmap is getting slow , the bigger bitmap is , the more speed
> down
> finally, shut-downed
>
> how to fit image in screen without pain

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[android-developers] Re: Can we install Android SDK on windows 7 if yes then how ?

[Matty]

I followed the standard instructions on Windows 7, and everything
works great.

On Aug 25, 6:07 pm, Mark Murphy  wrote:
> On Wed, Aug 25, 2010 at 4:09 AM, Abbas  wrote:
> > Can we install Android SDK on windows 7
>
> Yes.
>
> > if yes then how ?
>
> By following the instructions for installing the Android SDK on
> Windows, presumably:
>
> http://developer.android.com/sdk/index.html
>
> --
> Mark Murphy (a Commons 
> Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy
>
> _The Busy Coder's Guide to Android Development_ Version 3.1 Available!

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[android-developers] Re: android manifest file from an unzipped apk cannot be read

[Matty]

Activites that are re-usable should have some published way of
invoking them...  Otherwise, perhaps they do something by file type,
like if you start an activity for an MP3, audio players should be able
to launch.  Why don't you just ask the developer how to invoke an
activity, instead of trying to hack through their apk?



On Aug 26, 9:41 am, Anil  wrote:
> I would like to read the android manifest from an apk file. I unzipped
> it using 7-zip. However, the manifest seems to be in binary with some
> ascii but a lot of control chars. Was it meant to be hidden? The
> philosophy behind Android is to share and reuse activities - but if
> the manifest cannot be read, then I dont know how it can be done.
> thanks,
> Anil

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[android-developers] Re: Need help getting app to play sounds

[Matty]

It depends on what type of audio you want to play... If you're playing
short WAV files, maybe you should look at AudioTrack instead of
MediaPlayer?  MediaPlayer has worked perfectly well for me with MP3s
though.  Maybe review the MediaPlayer State Diagram if you're having
trouble...



On Aug 26, 12:25 pm, ericmahlon  wrote:
> In my class I have an OnTouchEvent and when a certain area is clicked,
> it will play a sound (Not sure if this is the best way to go about
> this?).  However I have been running into bugs using the MediaPlayer.
> Sound will double play and then eventually sound will stop
> completely.  I am wondering how to efficiently play 5 sounds.  The
> user will be clicking the screen in different areas and different
> sounds will be playing.  I have the attached code below but it only
> has the first areasay I add in another area how would I go about
> changing the media player to play a different sound.
>
> @Override
>     public boolean onTouchEvent(MotionEvent e)
>     {
>
>         x = e.getX();
>         y = e.getY();
>
>         if (x >= 232 && x<=287 && y>=117 && y<=157) {
>              //PLAY SOUND
>     }
>
>         return true;
>
> }
>
>

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[android-developers] Re: Using reflection to overide 2.0 method

[Matty]

I agree with TreKing, but I believe you might have to omit the
'@Override' annotation.

On Aug 5, 11:07 am, TreKing  wrote:
> On Thu, Aug 5, 2010 at 6:01 AM, Neilz  wrote:
> > Any ideas please on how I can achieve this?
>
> I don't think you have to do anything. I'm no expert on Java reflection, but
> ... if you add this function to your Activity and it runs on an older
> platform where there's nothing to override, then it should just appear like
> any other function that you added to your class. Assuming this is a function
> the OS calls for you at some point, it will never get called.
>
> On newer versions it will override the base function and be called when it's
> supposed to be.
>
> Of course, if you make use of it yourself somewhere where it *could* be
> called on older platforms, a simple check of the OS build version can keep
> you from executing anything you shouldn't be.
>
> -
> TreKing  - Chicago
> transit tracking app for Android-powered devices

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[android-developers] Re: getAlpha for ImageView

[Matty]

If you're calling setAlpha, you should remember what you set the
ImageView to.  Maybe extend ImageView and add a "rememberedAlpha"
field, that gets it's value on setAlpha() but before a call to
super.setAlpha()?  It doesn't look like there's a straight forward way
to get the alpha...


On Aug 3, 9:18 pm, Ozymandias  wrote:
> How do you get the alpha of an ImageView? You can setAlpha, but I can
> find no way to retrieve it afterwords. Anyone know?

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[android-developers] Re: Thread

[Matty]

You should be able to read up on threads here:
http://download-llnw.oracle.com/javase/tutorial/essential/concurrency/index.html



On Aug 4, 4:43 am, perumal316  wrote:
> Hi All,
>
> I want to write a separate Thread within my application(to do
> Bluetooth connection). Any idea where I can find any reference for
> help to write Threads in Android?
>
> I searched online but could not find any proper reference.
>
> Thanks In Advance,
> Perumal

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[android-developers] Re: Connect to desktop application

[Matty]

Tom, are you on the same router as the "desktop"?  If so, you should
be able to make a request (http, for example) from the android device
to the desktop via it's local IP address (probably 192.168.x.x).  If
you're trying to access the "desktop" from a mobile network, or a
different router, you'll have to do some configuration... mainly
you'll want to set up port forwarding on your router, and if you have
a dynamic IP from your Internet Service Provider, you'll probably want
a service like http://www.dyndns.com/

Hope this helps.


On Aug 3, 4:57 pm, Tom  wrote:
> I have an application that will run on a desktop behind a router.  The
> application makes a call to a webservice and updates its connection
> information periodically.  The desktop has a database that I need to
> retrieve information from via an Android phone.  The phone needs to
> request the information from the application.  How do I connect the
> application on the phone to the desktop application behind the router?
> Thanks in advance,
> Tom

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[android-developers] Re: Specs for graphics

[Matty]

You can find UI Guidelines for icons here:
http://developer.android.com/guide/practices/ui_guidelines/icon_design.html

If you click around, you can find other info there too...

As for the market submission, here's what the form says (and validates
for)
 Screenshots
0 or 2
320w x 480h or 480w x 854h
24 bit PNG or JPEG (no alpha)
Full bleed, no border in art
Landscape thumbnails are cropped


Promotional Graphic
optional
180w x 120h
24 bit PNG or JPEG (no alpha)
Full bleed, no border in art

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[android-developers] Re: Deploying Custom Configuration with My Android App

[Matty]

If you have web services already, won't it be easy to add one that
allows clients to say "where should I look for content"?  They could
send version numbers, their own phone number, or other information so
you can decide where to point them.  Then the client could store that
information in a DB, or on the sdcard, or in memory...



On Aug 3, 8:42 am, TreKing  wrote:
> On Mon, Aug 2, 2010 at 9:28 AM, droidbm  wrote:
> > *Raw Resource:  If I unzip the apk and change the settings file, it becomes
> > invalid as I need to resign the apk.
>
> Why are you unzipping the APK to change the settings file?
> You can have several raw resources, one for each configuration, and on first
> run read the one that's appropriate and use it to set up your app, applying
> the settings to, say, a SharedPreferences object. Done. What's the problem?
>
> -
> TreKing  - Chicago
> transit tracking app for Android-powered devices

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[android-developers] Re: intent to play mp4 problems

[Matty]

maybe try your intent this way:

Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.parse(url), "video/mp4");
view.getContext().startActivity(intent);





On Aug 2, 4:58 pm, Kyle  wrote:
> Here is my code that I'm currently using:
>         final class MyWebViewClient extends WebViewClient {
>             @Override
>             public boolean shouldOverrideUrlLoading(WebView view, String
> url) {
>                 if (url.endsWith(".mp4"))  {
>                     Intent intent = new
> Intent("android.intent.action.VIEW", Uri.parse(url));
>                     view.getContext().startActivity(intent);
>                     return true;
>                 } else {
>                     return super.shouldOverrideUrlLoading(view, url);
>                 }
>             }
>         }
>
> On Aug 2, 3:00 pm, Matty  wrote:
>
> > Are you calling intent.setDataAndType(Uri Data, String Type)
> > ?
>
> > Sometimes specifying the right mime type makes a big difference.
>
> > On Aug 2, 1:26 am, Kyle  wrote:
>
> > > Hey,
> > > I've created a WebView which loads a webpage and will play any file
> > > that ends in mp4 on click. The problem is, is that when the
> > > application is loaded on Android 2.2 and I click a mp4 link, it will
> > > open the web browser and immediately close. I can take that same link
> > > and manually enter it into the web browser and the media player will
> > > launch and play the file properly. What I'm wondering is how can I get
> > > my application to properly load the media player and play the video?
>
>

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[android-developers] Re: Launch application or service from html link?

[Matty]

I would make up a scheme... and you can use an Intent-Filter to grab
any request to that scheme.

use an url like

shrenikvikam://some.data.for.your.activity

Then if your Activity listens for that scheme, a web link should start
your activity.

see
http://developer.android.com/guide/topics/intents/intents-filters.html



On Aug 3, 4:36 am, Shrenik Vikam  wrote:
> Can I get  the detailed description of how to launch application from
> web link or
>  A trusted link where I can get the steps to do the same
>
> Thanks in Advance
> Shrenik Vikam

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[android-developers] Re: intent to play mp4 problems

[Matty]

Are you calling intent.setDataAndType(Uri Data, String Type)
?

Sometimes specifying the right mime type makes a big difference.



On Aug 2, 1:26 am, Kyle  wrote:
> Hey,
> I've created a WebView which loads a webpage and will play any file
> that ends in mp4 on click. The problem is, is that when the
> application is loaded on Android 2.2 and I click a mp4 link, it will
> open the web browser and immediately close. I can take that same link
> and manually enter it into the web browser and the media player will
> launch and play the file properly. What I'm wondering is how can I get
> my application to properly load the media player and play the video?

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[android-developers] Re: Create Quick Launch of WAP site

[Matty]

I'm not positive what all the options are... You could certainly just
wrap your website in a WebView and offer it for free on the market...
If users visit your site, you can send them to the market with a market://
link, and you'll get visitors who found your app on the market without
even visiting the site first.



On Aug 2, 2:10 am, John B  wrote:
> On my website I would like to offer browsers, from an Android device,
> a button/link that would prompt the user to add the site as a quick
> launch icon on their screen.  I'm sure this is easy to do but have not
> seen any decent posts on this, though may have missed it.  Any
> recommendations?

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[android-developers] Re: either im only registering textview and webview clicks or im not getting my listitemclick

[Matty]

Are you perhaps listening to a ListView that doesn't exist any more???

Also, I don't know why you would use a WebView for this... It makes
much more sense to download the image into memory and display it as an
ImageView.  It sounds like you're reloading it every time now anyway.
If you don't want to reload it, or store it in a DB, what's wrong with
storing it on the filesystem?



On Aug 2, 11:36 am, charles berman 
wrote:
> i may get flamed for this question, but help me do it right. I was
> downloading images from a website and putting them into a database, and then
> displaying them in an imageview. well to reduce the size of my database, i
> changed from an imageview to a webview and now only do a
> Webview.Loaddata(ImageLink). all of this is contained within a listactivity.
> my problem seems to be that for whatever reason now i dont seem to be
> capturing the Listclick event any longer
>
> XML
>
> 
>
>     http://schemas.android.com/apk/res/android";
> android:background = "@color/ImageColor" android:orientation = "horizontal"
> android:layout_width="fill_parent" android:layout_height="wrap_content">
>
>     http://schemas.android.com/apk/res/android";
> android:background = "@drawable/bluebg" android:orientation = "vertical"
> android:layout_width="wrap_content" android:layout_height="wrap_content">
>
>          android:color="@color/ImageColor"
>                     android:paddingTop ="20pt"
> android:layout_width="80px"
>                     android:background = "@drawable/myimage"
>                     android:layout_height="95px"/>
>
>     
>     http://schemas.android.com/apk/res/android";
> android:background = "@drawable/bluebg" android:orientation = "vertical"
> android:layout_width="fill_parent" android:layout_height="wrap_content">
>
>                               android:paddingRight= "2pt"
>                      android:paddingLeft= "2pt"
>                      android:background = "@android:color/transparent"
>                      android:layout_width="fill_parent"
>                      android:layout_height="wrap_content"/>
> 
>
> 
>
> Charles Berman
> 313.790.9851
>
> www.charlesberman.com

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[android-developers] Re: new scene ?

[Matty]

1) Create a new activity for your second "scene"...
2) Add an OnClickListener to your button
3) When button is clicked, call startActivity() with an intent for
your second activity.

Hope that's what you were asking


On Aug 2, 2:05 pm, coy  wrote:
> hi.
> I'm beginning to study Android and have a doubt.
>  How do I open a new layout and code (xml and java) by clicking a
> button on the main scene?
> A simple help would be greatly appreciated (:

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[android-developers] Re: how to get which listitem is focused

[Matty]

You should be able to create an AdapterView.OnItemSelectedListener,
add it to your ListView using setOnItemSelectedListener and keep a
pointer to the currently selected item.




On Jul 31, 9:17 am, cindy  wrote:
> I have a listActivity which I use ArrayAdapter insider it. When user
> scrolls the scroll ball, one listitem would be focused. How canI
> know  itemlist is highlighted?
>
> It looks simple to me at first, however, it takes several days and
> still can't find answer.
>
> Thanks!
>
> April

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[android-developers] Re: How to store a drawable in database?

[Matty]

I can't help but wonder why you would want to do this?

On Aug 1, 9:12 am, Jerry Fan  wrote:
> Hi folks,
> is there anyway that I can store drawables into database?

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[android-developers] Re: How to convert a xml page to speech???

[Matty]

I think you will want to write your own xml parser/handler so that you
can decide what gets read to the user.  Maybe use SAX?


On Jul 22, 6:03 am, prachi  wrote:
> Hi all
>
> I have an xml page which im able to display on webview and also able
> to convert it to sppech by using text to speech API provided by
> android.
>
> I have stored that xml page in a string variable and hence able to
> convert it to speech which takes string variable as an input.
>
> But my problem is that if the xml has some href tags or imgsrc tags
> those are also read out by TTs.
>
> Can u pl tell me how to overcome this I jst want the text part
> which is displayed in webview to be read out not the image url or
> smething else
>
> Please help...Its urgent.
>
> Any help would be appreciated:)

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[android-developers] Re: how to upgrade the os of g1 mobile

[Matty]

What carrier are you on?  I believe T-Mobile allowed me to use the
"update" setting...  Otherwise I think you'll have to find
instructions online.  See an example I found with a simple google
search:

http://www.denraf.be/content/howto-android-21-g1adp1dream



On Jul 22, 4:54 am, Narendra Bagade  wrote:
> Hi All,
>
> I have android g1 mobile having os 1.5.I want to upgarde the os from 1.5 to
> higher version.
>
> Please help me how to do this.
>
> --
> Regards,
>
> Narendra

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[android-developers] Re: video playback problem

[Matty]

My guess is the video isn't the right size, so the device is
struggling to scale the video and/or the bitrate is just too high...
Try a lower bitrate, and check the dimensions of your video.



On Jul 22, 7:49 am, berliner  wrote:
> Hi,
>
> what could be the reason that a mp4 video file without sound doesn't
> play correctly when using the VideoView class? The video plays just
> fine in vlc, mplayer and ubuntu media player. It has been created on
> the device using ffmpeg. It is like 5 seconds long, so nothing
> especially big. Codec is H263 with AAC-Audio, though the audio signal
> is just empty. The problem is, that the video plays, but the image
> doesn't change, or at least doesn't change a lot. It seems more like a
> still image, though small movements is sometimes visible but not at
> all what has been encoded. I noticed that the VideoView stops playing
> but the time continues to step up, so it doesn't stop counting after 5
> seconds but just goes on counting.
>
> I'm using the emulator. Can that be related? I see the following
> messages in logcat:
> W/PlayerDriver: Using generic video MIO
> D/AudioSink: bufferCount (4) is too small and increased to 12
> E/SW_DEC: PV SW DECODER is used for MPEG4
> W/MediaPlayer: info/warning (1, 44)
> I/MediaPlayer: Info (1, 44)
> D/MediaPlayer: getMetadata
> W/AudioFlinger: write blocked for 118msecs, 1630 delayed writes,
> thread 0xb388
> W/MediaPlayer: Attempt to seek to past end of file: request = 5559,
> EOF 4018
> ...
>
> What could be the reason? Any ideas? Might it be an encoder problem?
>
> best regards,
> berliner

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[android-developers] Re: Detecting "lock_layer timed out"

[Matty]

That sounds most likely (bug in platform).  I've only been able to
reproduce it on 1.5 and 1.6, not 2.0 or 2.1...

So I guess that returns me to my original question:
Is there any way I can detect this state in my code (I guess I don't
mind polling when viewing this Activity).  If so, what's the right
thing to do? Is there a way to release the lock?  Can I just kill the
app?  I guess the main goal is to avoid timing out and show the "wait/
force close" message in this case.

Thanks.




On Jul 21, 7:34 pm, Dianne Hackborn  wrote:
> What version of the platform are you running against?  It could just be a
> bug in the platform.
>
>
>
> On Wed, Jul 21, 2010 at 11:17 AM, Matty  wrote:
> > My OpenGL stuff seems to draw just fine until some rotate (this is
> > most reproducible if you rotate back and forth with about a second
> > between).
>
> > Note that Activity B is "singleTop"
>
> > Here's a log from the normal startup:
> > I/System.out(17209): Activity A:onCreate()
> > I/System.out(17209): Start Activity B from Activity A
> > I/System.out(17209): Activity B:onCreate()
> > I/System.out(17209): Activity B:onResume()
>
> > When I rotate and things are fine:
> > I/System.out(17209): Activity B:onPause()
> > I/System.out(17209): Activity B:onDestroy()
> > I/System.out(17209): Activity B:onCreate()
> > I/System.out(17209): Activity B:onResume()
> > I/System.out(17209): Activity A:onCreate()
> > I/System.out(17209): Start Activity B from Activity A
> > I/System.out(17209): Activity B:onPause()
> > I/System.out(17209): Activity B:onResume()
>
> > So it's actually restoring B before re-creating activity A... But then
> > A resumes B...  I think it's doing B-then-A because A is shown through
> > the translucent activity B? For normal cases this works fine...
>
> > I was able to reproduce the issue by rotating back and forth
> > repeatedly...  I sort of had to do it while the screen stayed grey, so
> > I'm not sure exactly when the problem started, but I'm seeing
> > something useful from the log:
> > I/System.out(17910): Start Activity B from Activity A
> > I/System.out(17910): Activity B:onPause()
> > I/System.out(17910): Activity B:onResume()
> > I/System.out(17910): Activity B:onPause()
> > I/System.out(17910): Activity B:onDestroy()
> > I/System.out(17910): Activity B:onCreate()
> > I/System.out(17910): Activity B:onResume()
> > I/System.out(17910): Activity B:onPause()
> > I/System.out(17910): Activity B:onDestroy()
> > I/System.out(17910): Activity B:onCreate()
> > I/System.out(17910): Activity B:onResume()
> > I/System.out(17910): Activity B:onPause()
> > I/System.out(17910): Activity B:onDestroy()
> > I/System.out(17910): Activity B:onCreate()
> > I/System.out(17910): Activity B:onResume()
> > I/System.out(17910): Activity B:onPause()
> > I/System.out(17910): Activity B:onDestroy()
>
> > It looks like when you rotate that fast, Android doesn't even get to
> > tell anything to Activity A!  Somehow it got lost, and after that, I
> > see continuing messsages of:
> > W/SurfaceComposerClient(17910): lock_layer timed out (is the CPU
> > pegged?) layer=2, lcblk=0x420d0120, state=000e (was 000e)
>
> > Is there any way around this? Am I being to mean with my rotations?
>
> > On Jul 21, 1:12 pm, Dianne Hackborn  wrote:
> > > Have you made sure your SurfaceView UI is actually drawing regularly, and
> > > especially redrawing itself as soon as possible with the new size?
>
> > > On Wed, Jul 21, 2010 at 8:02 AM, Matty  wrote:
> > > > Thanks for the quick response Dianne.
>
> > > > I have an activity that uses OpenGL, and if I rotate  at just the
> > > > right time, the log prints
>
> > > > W/SurfaceComposerClient(  749): lock_layer timed out (is the CPU
> > > > pegged?) layer=2, lcblk=0x420d0120, state=000e (was 000e)
>
> > > > I basically don't want the Activity to hang.  I'm using a plain
> > > > android.opengl.GLSurfaceView.
>
> > > > There are 2 activities involved. A,B.  B is started from A using
> > > > startActivityForResult, and is "translucent".  On rotate, both finish,
> > > > and then I start A (which might work) which then starts an intent for
> > > > B.  If I rotate at the right time, I see the message above, and
> > > > sometimes Activity A draws properly, but usually not quite (only draws
> > > > some of the screen, or a rotated version of the opposite orientation),
> > > &

[android-developers] Re: Detecting "lock_layer timed out"

[Matty]

My OpenGL stuff seems to draw just fine until some rotate (this is
most reproducible if you rotate back and forth with about a second
between).

Note that Activity B is "singleTop"

Here's a log from the normal startup:
I/System.out(17209): Activity A:onCreate()
I/System.out(17209): Start Activity B from Activity A
I/System.out(17209): Activity B:onCreate()
I/System.out(17209): Activity B:onResume()

When I rotate and things are fine:
I/System.out(17209): Activity B:onPause()
I/System.out(17209): Activity B:onDestroy()
I/System.out(17209): Activity B:onCreate()
I/System.out(17209): Activity B:onResume()
I/System.out(17209): Activity A:onCreate()
I/System.out(17209): Start Activity B from Activity A
I/System.out(17209): Activity B:onPause()
I/System.out(17209): Activity B:onResume()

So it's actually restoring B before re-creating activity A... But then
A resumes B...  I think it's doing B-then-A because A is shown through
the translucent activity B? For normal cases this works fine...

I was able to reproduce the issue by rotating back and forth
repeatedly...  I sort of had to do it while the screen stayed grey, so
I'm not sure exactly when the problem started, but I'm seeing
something useful from the log:
I/System.out(17910): Start Activity B from Activity A
I/System.out(17910): Activity B:onPause()
I/System.out(17910): Activity B:onResume()
I/System.out(17910): Activity B:onPause()
I/System.out(17910): Activity B:onDestroy()
I/System.out(17910): Activity B:onCreate()
I/System.out(17910): Activity B:onResume()
I/System.out(17910): Activity B:onPause()
I/System.out(17910): Activity B:onDestroy()
I/System.out(17910): Activity B:onCreate()
I/System.out(17910): Activity B:onResume()
I/System.out(17910): Activity B:onPause()
I/System.out(17910): Activity B:onDestroy()
I/System.out(17910): Activity B:onCreate()
I/System.out(17910): Activity B:onResume()
I/System.out(17910): Activity B:onPause()
I/System.out(17910): Activity B:onDestroy()

It looks like when you rotate that fast, Android doesn't even get to
tell anything to Activity A!  Somehow it got lost, and after that, I
see continuing messsages of:
W/SurfaceComposerClient(17910): lock_layer timed out (is the CPU
pegged?) layer=2, lcblk=0x420d0120, state=000e (was 000e)

Is there any way around this? Am I being to mean with my rotations?




On Jul 21, 1:12 pm, Dianne Hackborn  wrote:
> Have you made sure your SurfaceView UI is actually drawing regularly, and
> especially redrawing itself as soon as possible with the new size?
>
>
>
> On Wed, Jul 21, 2010 at 8:02 AM, Matty  wrote:
> > Thanks for the quick response Dianne.
>
> > I have an activity that uses OpenGL, and if I rotate  at just the
> > right time, the log prints
>
> > W/SurfaceComposerClient(  749): lock_layer timed out (is the CPU
> > pegged?) layer=2, lcblk=0x420d0120, state=000e (was 000e)
>
> > I basically don't want the Activity to hang.  I'm using a plain
> > android.opengl.GLSurfaceView.
>
> > There are 2 activities involved. A,B.  B is started from A using
> > startActivityForResult, and is "translucent".  On rotate, both finish,
> > and then I start A (which might work) which then starts an intent for
> > B.  If I rotate at the right time, I see the message above, and
> > sometimes Activity A draws properly, but usually not quite (only draws
> > some of the screen, or a rotated version of the opposite orientation),
> > and it seems like B is somehow blocked because of the message above.
> > Activity B has the GLSurfaceView.
>
> > Any advice is greatly appreciated.
>
> > On Jul 21, 9:22 am, Dianne Hackborn  wrote:
> > > What problem is this causing you that you are trying to fix?
>
> > > On Wed, Jul 21, 2010 at 5:47 AM, Matty  wrote:
> > > > I have looked through many posts on this issue, and I've concluded
> > > > that there's not much I can do to prevent it... I am able to reproduce
> > > > this error when repeatedly rotating an Activity that uses OpenGL.
>
> > > > W/SurfaceComposerClient(  749): lock_layer timed out (is the CPU
> > > > pegged?) layer=2, lcblk=0x420d0120, state=000e (was 000e)
>
> > > > For reference:
> > > > I'm calling GLSurfaceView.onPause() and onResume() on activity pause
> > > > and resume...
>
> > > > My question is:
> > > > Can I detect this error in my java code, so I can try to do something
> > > > extra to correct it?
> > > > Is there an ErrorListener, or an object I can access to find out about
> > > > when this occurs? I have tried
> > > > ((EGL10) EGLContext.getEGL()).eglGetError();
> > > > but does not report an e

[android-developers] Re: Detecting "lock_layer timed out"

[Matty]

Thanks for the quick response Dianne.

I have an activity that uses OpenGL, and if I rotate  at just the
right time, the log prints

W/SurfaceComposerClient(  749): lock_layer timed out (is the CPU
pegged?) layer=2, lcblk=0x420d0120, state=000e (was 000e)

I basically don't want the Activity to hang.  I'm using a plain
android.opengl.GLSurfaceView.

There are 2 activities involved. A,B.  B is started from A using
startActivityForResult, and is "translucent".  On rotate, both finish,
and then I start A (which might work) which then starts an intent for
B.  If I rotate at the right time, I see the message above, and
sometimes Activity A draws properly, but usually not quite (only draws
some of the screen, or a rotated version of the opposite orientation),
and it seems like B is somehow blocked because of the message above.
Activity B has the GLSurfaceView.

Any advice is greatly appreciated.




On Jul 21, 9:22 am, Dianne Hackborn  wrote:
> What problem is this causing you that you are trying to fix?
>
>
>
> On Wed, Jul 21, 2010 at 5:47 AM, Matty  wrote:
> > I have looked through many posts on this issue, and I've concluded
> > that there's not much I can do to prevent it... I am able to reproduce
> > this error when repeatedly rotating an Activity that uses OpenGL.
>
> > W/SurfaceComposerClient(  749): lock_layer timed out (is the CPU
> > pegged?) layer=2, lcblk=0x420d0120, state=000e (was 000e)
>
> > For reference:
> > I'm calling GLSurfaceView.onPause() and onResume() on activity pause
> > and resume...
>
> > My question is:
> > Can I detect this error in my java code, so I can try to do something
> > extra to correct it?
> > Is there an ErrorListener, or an object I can access to find out about
> > when this occurs? I have tried
> > ((EGL10) EGLContext.getEGL()).eglGetError();
> > but does not report an error.  I'm guessing I'd need some sort of
> > Surface object?
>
> > --
> > 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
>
> --
> 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, and so won't reply to such e-mails.  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: how to get function call trace on android phones?

[Matty]

Can't you put a breakpoint (in eclipse) at the function you want
information about, then just run the code?  When you hit a breakpoint,
eclipse should show you a call stack.

On Jul 14, 2:44 am, Shuo Deng  wrote:
> Does anybody know how can I get the build-in function call trace on Android
> phone?
>
> Thanks!
>
> 2010/7/14 Shuo 
>
> > Hi,
>
> > I want to know which functions are called when I am running apps on
> > android phones. Does anyone know how can I get the function call
> > traces? Is there anything similar to the 'Detour' for windows?
>
> > Thanks a lot!
>
> > Shuo
>
>

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[android-developers] Re: Widget update problem

[Matty]

How are you delaying 5 seconds, and what operation are you doing once
that 5 seconds is complete?  Could it be taking more than 5 seconds,
thus slowly building up the number of processes that are running?

On Jul 21, 5:32 am, NightGospel  wrote:
> Hi all,
>
> I wrote one widget that updates per 5-seconds and I found that if it's
> run for a period of time, com.android.acore will occupy almost 100%
> cpu. Could somebody give me suggestions or help?
> Thanks in advance.
>
> NightGospel

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[android-developers] Re: Touch event noisy

[Matty]

I'm not positive, but maybe the issue is that you're getting touch
events for each time you draw your scene?  Try to skip drawing, and
just print debug about when your finger is down... I think that will
shed some light on the issue.  You could also just capture the
touchdown, record it's startTime, and if you haven't received an event
in some delta (probably like 50ms?) assume you should stop the
character.

Good Luck.



On Jul 21, 2:50 am, billconan  wrote:
> Hello everyone.
>
> I'm working on a simple game: when you press a button on the screen, a
> character will run to certain direction.
>
> it's easy to support keyboard input. but, some phone doesn't go with a
> keyboard or even no a track ball. so I decided to draw a virtual "run"
> key on the screen (with opengl). when the user press the virtual key,
> i apply a velocity to the character. and when the user release the
> key, i disable the velocity to stop the character.
>
> but there seems to be some touch event noisy.
>
> if my finger cannot press still, i will see millions of touch down and
> touch up events, instead of a single long pressing. and occasionally,
> my program captured the touch down  event when i touch the screen, but
> didn't capture touch up event. so my character will keep moving, even
> no finger is on the screen.
>
> I'm wondering if there is some way to reduce the touch event noisy and
> tell if the user is currently pressing on the screen, instead of only
> getting an event when touch up and down happen.
>
> it seems the system ui can detect long pressing, for example when you
> put a finger on one item of the list view widget, the entire item
> turns to orange.
>
> i just don't know how to detect pressing in my opengl game.
>
> thanks.

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[android-developers] Detecting "lock_layer timed out"

[Matty]

I have looked through many posts on this issue, and I've concluded
that there's not much I can do to prevent it... I am able to reproduce
this error when repeatedly rotating an Activity that uses OpenGL.

W/SurfaceComposerClient(  749): lock_layer timed out (is the CPU
pegged?) layer=2, lcblk=0x420d0120, state=000e (was 000e)

For reference:
I'm calling GLSurfaceView.onPause() and onResume() on activity pause
and resume...

My question is:
Can I detect this error in my java code, so I can try to do something
extra to correct it?
Is there an ErrorListener, or an object I can access to find out about
when this occurs? I have tried
((EGL10) EGLContext.getEGL()).eglGetError();
but does not report an error.  I'm guessing I'd need some sort of
Surface object?

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[android-developers] Re: Using a Handler in this code?

[Matty]

I'm not sure why you can't just use a thread (no handler)?

If you do need a handler, you can just create a new runnable, and post
it to the handler with something like:

new Handler().post(new Runnable(){
public void run(){
image = new GLCamTest().extractimage(q);
}
});




(Obviously, the code above isn't perfect, but hopefully it helps);

On Jul 20, 9:28 am, Aidan C  wrote:
> Hey guys,
>
> I've got 2 classes `GLLayer` and `GLCamTest`. I'm attempting to run a
> method located in `GLCamTest`...
>
>             public Bitmap extractimage(int pos){
>                 LocationData tweets;
>                 tweets = new LocationData(this);
>             SQLiteDatabase db = tweets.getWritableDatabase();
>                 //select the data
>             String query = "SELECT * FROM tweets;";
>             Cursor mcursor = db.rawQuery(query, null);
>             //Move to Position specified.
>                 mcursor.moveToPosition(pos);
>
>                 //get it as a ByteArray
>                 byte[] imageByteArray=mcursor.getBlob(7);
>                 //the cursor is not needed anymore
>                 mcursor.close();
>
>                 //convert it back to an image
>                 ByteArrayInputStream imageStream = new
> ByteArrayInputStream(imageByteArray);
>                 Bitmap theImage = BitmapFactory.decodeStream(imageStream);
>                 return theImage;
>                 }
>
> I'm looking to run in on a thread from `GLLayer` but from what I
> understand I need a Handler..
>
>                 public void run() {
>                 GLCamTest cam = new GLCamTest();
>         image = cam.extractimage(q);
>
>         }
>
> I'm starting the Thread from within `public void onDrawFrame(GL10 gl)
> {` my question is how would I implement said handler? I've 
> readhttp://developer.android.com/reference/android/os/Handler.htmlbut I
> still don't really understand how I'd implement it. could someone help
> me out?

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[android-developers] Re: Where is source code (or git file) for ContactsContract.QuickContact

[Matty]

I see ContactsContract here:

http://android.git.kernel.org/?p=platform/frameworks/base.git;a=blob;f=core/java/android/provider/ContactsContract.java

But I don't see a QuickContact...





On Jul 15, 5:33 pm, Agus  wrote:
> Hi all,
>
> What is the .git file corresponding to ContactsContract.QuickContact class?
>
> Agus.

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[android-developers] Re: debugging just the apk file

[Matty]

As a developer, I often find it useful enough if I get a logcat dump
with a crash or bug.

More information can be found about 'adb logcat' here:
http://developer.android.com/guide/developing/tools/adb.html



On Jul 14, 8:59 pm, rahul jain  wrote:
> Hi there !
>
> I am not sure how is this possible ?. But we would like to debug the
> apk files without having the source code (source code lies with
> developers).  But if something breaks I would like to report it to the
> developers. We would like to report the crash logs and the normal info
> about the app.
>
>  Rahul

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[android-developers] Re: Button pressed color

[Matty]

What are your "custom buttons"?  Why not make them extend the Button
class so you inherit the default behavior?  I have created some
default buttons, but I only did so to selectively override default
behavior.

Try inspecting (new Button(this)).getBackground();

and see if that helps you.





On Jul 14, 8:52 am, Ajay  wrote:
> Hi,
>    Is there a way I could get the color that is used when a button is
> pressed? I know that the button uses a default selector xml that
> consists of the pressed image. But, I am having some custom buttons
> for which I want it to be close to the default image used for pressed
> state.
>
> Thank you,
> AJ

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[android-developers] Re: drawing lines on top of a image view

[Matty]

If you want to draw on top of an ImageView, I would extend it and
override it's onDraw method.  This provides you a [relative] canvas to
draw on.  Just be sure to call super.onDraw() if you want the image to
show up also.



On Jul 13, 11:23 am, Jags  wrote:
> I am trying to put a background image and draw on top of that screen.
> I assumed activity will have a on draw method, but it does not have.
> it seems i need to use surfaceview. Can I put a surfaceview on top of
> the image view and make it transparent ? any example/tutorial i can
> refer to ?

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[android-developers] Re: Block Text

[Matty]

I'm not exactly sure why you would want to do this... What are you
doing with calls?  Maybe you can get away with turning off/disabling
all radios? (I don't know how feasible this is).

Maybe you just want to block the notifications, and not the actual
messages?






On Jul 12, 4:54 pm, ranjan ar  wrote:
> Hello,
> I want to block incoming and outgoing Text (as well as email). I am using
> the broadcast receiver that is not blocking the text but its blocking the
> outgoing calls. Can some one help me. Thank you.
>
> Here is the piece of code that blocks the SMS.
> -
> public void onReceive(Context context, Intent intent)
>     {
>      mContext=this;
>         String actionType = intent.getAction();
>
>           if ((actionType.equals(Intent.ACTION_SEND)))
>                          {
>                      setResultData(null);   // I tried
> with abortBroadcast();  this didn't work either
>                          }
>
>       }
> ---
> My androidmanifest has all the permissions required.

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[android-developers] Re: Support ECIES encryption?

[Matty]

I don't think it's natively supported... But there's some sample java
code here:

http://www.flexiprovider.de/examples/ExampleECIES.html

Might not help, I think they use 3rd party libraries, but perhaps it's
a good place to get started.



On Jul 13, 5:58 am, ricos  wrote:
> Hello.
> Does Java API of Android support the ECIES encryption?
> If it is, can anyone inform the reference or sample code for it?
>
> Regards,
> Ricos.

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[android-developers] Re: Button Long Click to increase Numeric Text View

[Matty]

I do something similar...

onLongClick -> Start a thread/timer
in Timer/Thread -> increment value, reschedule timer
onTouchListener.OnTouch() -> detect MotionEvent.ACTION_UP and stop the
timer

Hope that helps, sounds like you're on the right track.




On Jul 13, 5:48 am, Kris Skarbø  wrote:
> Thanks for the response. But I forgot to mention the part that:
> I want the numeric to increase, say 1 value pr 1/2 sec, while I hold
> down the button.

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[android-developers] Re: Force an Application to be alive

[Matty]

I believe you might want to use a service.

http://developer.android.com/reference/android/app/Service.html



On Jul 13, 3:49 am, perumal316  wrote:
> Hi All,
>
> I am writing an application to do fileobservation which can be done.
> Is there any way I can make the application to run in the background
> without killing it?
>
> Unless user restart the phone. Is there any way to do it?
>
> Thanks In Advance,
> Perumal

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[android-developers] Re: How to define some smart layout?

[Matty]

This simple layout seems to work for me:


http://schemas.android.com/apk/res/android";
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:gravity="center">






On Jul 9, 5:35 am, Jeruliu  wrote:
> I will have a list view on the top and a button on the bottom in the
> view.
>
> Regardless the height of the list view i would like to fix the button
> position on the bottom all the time.
>
> If the list view is too long then make it scrollable.
>
> How to do this? thanks.

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[android-developers] Re: Theme.NoTitleBar.Fullscreen not working when other activities use a custom title?

[Matty]

I found the solution here:

http://groups.google.com/group/android-developers/browse_thread/thread/2de77043f32835aa/f2a1357bf1335461


It's basically: "Add the following to your activity:
getWindow().setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS,
WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);"

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[android-developers] Re: OpenGL texture wrapping flickers. Why?

[Matty]

I was able to solve this...

I was calling the texture wrapping code on every draw, right before I
bound the texture.  Now, I set the texture parameters when the
textures are generated, and I don't need to specify wrapping every
time I draw a shape... No more flicker, and the code is probably more
efficient.

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[android-developers] Re: organizing the code

[Matty]

Well, as far as I can tell, the only error-handling you're doing in
that whole block is to set picvalues to an empty object if you get a
JSONException... If all you're going to do on Exception is log a
message, there's probably no reason to call out each Exception
seperately.  You can Log each step that might throw, and wrap the
whole method in a try/catch.  You'll still be able to pull out
specific types of Exceptions if you need to... Maybe something like
this:


public void something() {
try {
nameValuePairs.add(new BasicNameValuePair("id", picId));

InputStream content = null;
HttpClient httpclient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(

"http://www.pedroteixeira.org/thennnow/alg_showpopup.php";);

httpPost.setEntity(new 
UrlEncodedFormEntity(nameValuePairs));
response = httpclient.execute(httpPost);
content = response.getEntity().getContent();

StringBuilder sb = new StringBuilder();
String line;
BufferedReader reader;

reader = new BufferedReader(new 
InputStreamReader(content,
"UTF-8"));

while ((line = reader.readLine()) != null) {
sb.append(line);
String pic_values = sb.toString();
try {
picvalues = new JSONArray(pic_values);
} catch (JSONException e) {
// TODO Auto-generated catch block
picvalues = new JSONArray(""); // just 
so it's not null.
}
}
} catch (JSONException je) {
picvalues = new JSONArray();
} catch (Exception e) {
Log.d("TAG", "Exception:" + e);
}
}



On Jul 7, 6:03 am, Pedro Teixeira  wrote:
> I'm having a hard time keeping my code clean... mainlly because all
> the try's and catches...
> I'm simple doing an HTTP request on which the response is then
> converted to JSON Array.. but now it's a mess of {}'s .. is there
> anyway to agregate all this try and catches? The code really looks bad
> and unreadable like this...  and worst, it's executing correctly
> because I'm not finishing in the correct places..
>
> nameValuePairs.add(new BasicNameValuePair("id", picId));
>
>                                         InputStream content = null;
>                                         HttpClient httpclient = new 
> DefaultHttpClient();
>                                         HttpPost httpPost = new 
> HttpPost("http://www.pedroteixeira.org/
> thennnow/alg_showpopup.php");
>
>                                         try {
>                                                                 
> httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
>                                         }
>                                         catch (UnsupportedEncodingException 
> e1) {
>                                                                 // TODO 
> Auto-generated catch block
>                                                                 
> e1.printStackTrace();
>                                         }
>                                         try {
>                                                                 response = 
> httpclient.execute(httpPost);
>                                         } catch (ClientProtocolException e1) {
>                                                                 // TODO 
> Auto-generated catch block
>                                                                 
> e1.printStackTrace();
>                                         } catch (IOException e1) {
>                                                                 // TODO 
> Auto-generated catch block
>                                                                 
> e1.printStackTrace();
>                                         }
>                                         try {
>                                                                 content = 
> response.getEntity().getContent();
>                                         } catch (IllegalStateException e1) {
>                                                                 // TODO 
> Auto-generated catch block
>                                                                 
> e1.printStackTrace();
>                                         } catch (IOException e1) {
>                                                                 // TODO 
> Auto-generated catch block
>                                                                 
> e1.printStackTr

[android-developers] Re: Smooth Image Rotation with Gesture Control?

[Matty]

You should be able to override onDraw, and draw the bitmap using
something like:

canvas.drawBitmap(bitmap, matrix, paint)

I haven't used drawBitmap with a matrix before, but you can check out
some more info here:
http://www.anddev.org/resize_and_rotate_image_-_example-t621.html

You should be able to use a GestureDetector to control when it spins,
etc.

It might be easier to do this in OpenGL, but I think it's definitely
possible with just Canvas if you're not familiar with OpenGL.

Hope that helps.


On Jul 5, 11:49 pm, ocdtrekkie  wrote:
> Ah crud, now I feel fairly stupid.  ;)  People responded and I didn't
> see it and posted a seperate request.  I'm gonna upload the design
> document for it, I've got the UI "designed", I just can't figure out
> how to program it so it will behave right.  I've read a lot of
> examples/tutorials/help things regarding image rotation, but I haven't
> seen anything that's the same sort of thing, even though I would
> imagine it's a fairly simple idea.
>
> http://imgs.ocdtrekkie.com/MobileDHDConcept2.jpg
>
> This is only a portion of the UI, but it's the one I need help with.
> Basically I have a fancy circular image (it's a ring), and I want to
> situate it about there on the screen, and then let people rotate it
> with their finger.  (Only a certain portion of the ring will be
> visible on screen at a time, as you can see).  Looking at the
> different Layout formats though, I'm wondering if I have to go to
> OpenGL for something like this, or if it can be done without it.
>
> (Oh, TreKing, I just looked at your site... and I will use your app
> next time I go into the city for sure, I live in the Chicago suburbs,
> and public transit here baffles me.  ;) )
>
> On Jun 24, 10:38 am, TreKing  wrote:
>
> > On Fri, Jun 18, 2010 at 12:01 AM, ocdtrekkie  wrote:
> > > Can anyone help get me started?  I can program all the logic I need for my
> > > program really well, I just need some help with designing the UI to 
> > > function
> > > the way I want it to.
>
> > What exactly do you expect us to do for you?
> > How are we supposed to help you design a UI for your app?
>
> > -
> > TreKing - Chicago transit tracking app for Android-powered 
> > deviceshttp://sites.google.com/site/rezmobileapps/treking

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[android-developers] Theme.NoTitleBar.Fullscreen not working when other activities use a custom title?

[Matty]

My test involves 2 Activities, one with a GridView, and one with a
ListView.  The GridView is defined as "Theme.NoTitleBar.Fullscreen"
and works great on first launch.

The ListView defines a custom title bar using:
getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE,
R.layout.titlebar);

The app starts and you are presented with a GridView.  For simplicity
I added one item:
http://picasaweb.google.com/lh/photo/twm8eQBvUAQcajNr5Z5RRQ?feat=directlink

If you click the item you go to a ListView:
http://picasaweb.google.com/lh/photo/sFI7SNMjIC0iXjmxQVqKLg?feat=directlink

Now when I click "back" I'm back at the first Activity.  If I press
"up" on the dpad I can scroll up:
http://picasaweb.google.com/lh/photo/eRx06OVXFtPccmtgT_b0pw?feat=directlink

Is this because of the custom title? Can anyone give me advice to
avoid this?

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[android-developers] OpenGL texture wrapping flickers. Why?

[Matty]

I'm drawing 5 rectangles with OpenGL.  They are texture mapped, and
use the following parameters/binding:

...

gl.glTexParameterf(GL10.GL_TEXTURE_2D, 
GL10.GL_TEXTURE_WRAP_S,
GL10.GL_CLAMP_TO_EDGE);
gl.glTexParameterf(GL10.GL_TEXTURE_2D, 
GL10.GL_TEXTURE_WRAP_T,
GL10.GL_CLAMP_TO_EDGE);
gl.glBindTexture(GL10.GL_TEXTURE_2D, 
textures[textureid]);

...

I then draw them like this:

...

gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, smallTexBuffer);
gl.glDrawElements(GL10.GL_TRIANGLE_FAN, VERTS,
GL10.GL_UNSIGNED_SHORT,
mIndexBuffer);

...

When I start the activity, the shapes all flash as if the textures
were supposed to wrap (ie, i see more than one texture per shape),
then the screen quickly corrects itself.

Is there some manual buffering I'm supposed to do while the textures
get mapped and unwrapped?

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[android-developers] Complete Newbie - Looking for some help :)

[Matty Kyle]

Hi there.

Well i decided today that I want to create a very simple app to
compliment my website at http://www.gameworldplus.com.

I basically want to make a simple app with nice looking buttons,
leading to the different areas of help/tutorial, then work from there.

I have installed everything need, Eclipse etc and have made my first
"hello world" app in the process.

I am no stumped as to where to go next. So hoping for some friendly
advice :)

Cheers

Matt

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