[android-developers] WifiManager: Can't activate WiFi Hotspot with Android > v7.1

[Jens Doose]

 

We use a method of the WifiManager to open and close a WiFi Hotspot.
An external device (navi) connect via Bluetooth an Android smartphone and 
then our app open a WiFi hotspot.
After this, die navi have connection to the internet via the smartphone 
WiFi hotspot.


It works until Android 7.0.
Since Android 7.1 (and upper) it does not work, because the DHCP Service 
doesn't start (we think). 

My code snippet:
*WifiManager mWifiManager = (WifiManager) 
this.context.getSystemService(Context.WIFI_SERVICE);*


* Method method = mWifiManager.getClass().getMethod("setWifiApEnabled", 
WifiConfiguration.class, boolean.class); method.invoke(mWifiManager, 
wifiConfig, enabled); *


We test the Method ConnectivityManager::startTethering. But in this case 
the app needs MANAGE_USERS rights, but that is not possible for our app. 


Is there another class or method to activate the WiFi Hotspot?


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[android-developers] Problems using YouTubePlayerFragment, “the YouTubePlayerView is 0dp wide and 0dp high”

[Jens Wangenheim]

I am really struggling with using the `YouTubePlayerFragment` in my 
application. My implementation looks like this:

private void loadYouTubeVideo(final YouTubeViewHolder h, final Content 
content) {
final YouTubePlayerFragment youTubePlayerFragment = 
YouTubePlayerFragment.newInstance();
FragmentTransaction transaction = ((DetailActivity) 
getContext()).getFragmentManager().beginTransaction();
transaction.add(R.id.fl_youtube, youTubePlayerFragment).commit();
final ViewTreeObserver observer = h.mRlYouTube.getViewTreeObserver();
observer.addOnGlobalLayoutListener(new 
ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
youTubePlayerFragment.initialize(YOUTUBE_PLAYER_API_KEY, new 
YouTubePlayer.OnInitializedListener() {
@Override
public void onInitializationSuccess(YouTubePlayer.Provider provider, 
YouTubePlayer youTubePlayer, boolean wasRestored) {
if(!wasRestored) {
  
 youTubePlayer.setPlayerStyle(YouTubePlayer.PlayerStyle.DEFAULT);
youTubePlayer.loadVideo(content.getVideoId());
}
}

@Override
public void onInitializationFailure(YouTubePlayer.Provider provider, 
YouTubeInitializationResult youTubeInitializationResult) {
Log.e(getClass().getSimpleName(), "Error initializing YouTube Video 
with id ");
FragmentTransaction transaction = ((DetailActivity) 
getContext()).getFragmentManager().beginTransaction();
transaction.remove(youTubePlayerFragment);
}
});
}
});
}

The initialization is no problem, as a YouTubePlayer is displayed and the 
video is loaded. But it immediately stops after one second with the 
following message:

"YouTube video playback stopped due to the player's view being too 
small. The YouTubePlayerView is 0dp wide (minimum is 200dp) and 0dp high 
(minimum is 110dp)."

This is the XML layout with the `FrameLayout`, to which I add the 
`YouTubePlayerFragment` in the code above:


http://schemas.android.com/apk/res/android";
android:id="@+id/fl_youtube"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:minWidth="200dp"
android:minHeight="110dp"
android:layout_marginBottom="5dp"
>



I have no idea why the YouTubePlayer pretends to have width and height 0. 
When I log the size of the FrameLayout, its height is 607 and its width is 
1080 px. Any ideas how to solve this problem?

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Re: [android-developers] android.provider.Settings.System.FONT_SCALE -- Does this do anything (Android 2.0)?

[Jens]

...now, on Android 4.1.1 the following method still does NOT update the 
system's font scale:

Settings.System.putFloat( getContentResolver(), Settings.System.FONT_SCALE, 
newFontScale );

Any ideas?


On Friday, 13 November 2009 00:34:03 UTC+1, Romain Guy wrote:
>
> It's supposed to scale the size of fonts defined using the "sp" unit. 
> But this is not exposed to the user not really supported at the 
> moment. 
>
> On Thu, Nov 12, 2009 at 2:54 PM, Colin Brash 
> > 
> wrote: 
> > I've been playing around on Android 2.0 trying to globally change font 
> > sizes.  I call the following: 
> > 
> > Settings.System.putString(getContentResolver(), 
> > Settings.System.FONT_SCALE, scale); 
> > 
> > This does change FONT_SCALE, but the changed value seems to have no 
> > effect on the system. 
> > 
> > What does this actually do (if anything)? 
> > 
> > Thanks, 
> > Colin 
> > 
> > -- 
> > You received this message because you are subscribed to the Google 
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> > 
>
>
>
> -- 
> Romain Guy 
> Android framework engineer 
> roma...@android.com  
>
> Note: please don't send private questions to me, as I don't have time 
> to provide private support.  All such questions should be posted on 
> public forums, where I and others can see and answer them 
>

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[android-developers] Re: E/dalvikvm: Could not find class 'xxx', referenced from method yyy

[Jens Axelsson]

I have the same issue. Even just following the example
https://developers.google.com/mobile-ads-sdk/docs/android/fundamentals
I get "04-05 22:31:17.203: E/dalvikvm(28635): Could not find class
'com.google.ads.AdView', referenced from method
se.phidev.yxa.YxaActivity.onCreate", this was working fine until I
upgraded to ADT-17.

On 4 Apr, 17:56, Steve  wrote:
> I met this issue too. I can't find the way to work around or fix it
> Anyone can help me?
>
>
>
>
>
>
>
> On Friday, March 9, 2012 6:46:15 PM UTC+8, alex2k8 wrote:
>
> > I have migrated to adt-17-preview (http://tools.android.com/download/
> > adt-17-preview ),
> > because I had issues (http://code.google.com/p/
> > android/issues/detail?id=21031)
> > with previous versions... Now I have
> > such setup:
>
> > ProjC -> ProjB -> ProjA
>
> > Where
>
> >   ProjA: Java Project
>
> >   ProjB: Android Library
> >     - Properties > Android > Library > [x] Is Library
> >     - Properties > Java Build Path > Projects > ProjA
>
> >   ProjC: Android Project
> >     - Properties > Android > Library: ProjB
> >     - Properties > Java Build Path > Projects > ProjA
>
> > ProjA has:
>
> >     public class A {
> >         public void m1() {}
> >     }
>
> > ProjB has:
>
> >     public class B {
> >         public void m1() {
> >             new A().m1();
> >         }
> >     }
>
> > ProjC has:
>
> >     public void onCreate(Bundle savedInstanceState) {
> >         ...
> >         B b = new B();
> >         b.m1();
> >     }
>
> > The application crashes with such errors:
>
> > 03-09 14:33:05.730: E/dalvikvm(6508): Could not find class
> > 'com.test.A', referenced from method com.test.B.m1
> > 03-09 14:33:05.730: W/dalvikvm(6508): VFY: unable to resolve new-
> > instance 5 (Lcom/test/A;) in Lcom/test/B;
> > 03-09 14:33:05.730: D/dalvikvm(6508): VFY: replacing opcode 0x22 at
> > 0x
> > 03-09 14:33:05.730: D/dalvikvm(6508): DexOpt: unable to opt direct
> > call 0x0004 at 0x02 in Lcom/test/B;.m1
> > 03-09 14:33:05.730: D/AndroidRuntime(6508): Shutting down VM
> > 03-09 14:33:05.730: W/dalvikvm(6508): threadid=1: thread exiting with
> > uncaught exception (group=0x40a3b1f8)
> > 03-09 14:33:05.740: E/AndroidRuntime(6508): FATAL EXCEPTION: main
> > 03-09 14:33:05.740: E/AndroidRuntime(6508):
> > java.lang.NoClassDefFoundError: com.test.A
> > 03-09 14:33:05.740: E/AndroidRuntime(6508):         at
> > com.test.B.m1(B.java:
> > 6)
> > 03-09 14:33:05.740: E/AndroidRuntime(6508):         at
> > com.test.MainActivity.onCreate(MainActivity.java:14)
>
> > Q: What can I do to fix this error?

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[android-developers] Re: How to install both applications using 1 apk file?

[Jens]

If you mean "add/bind the widget to the users Homescreen" by
"installing" that is not supported for non-system/signed applications.
Otherwise, do as Mark said and put them both in the same APK.

On Sep 23, 2:59 pm, Oleksandr Fesak  wrote:
> Additionally to main application I need to install a widget
> application.
> Actually I have 2 apk files (for main application and for widget
> application). I need that this 2 applications to be installed from one
> apk package. Please suggest how to accomplish this task.

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[android-developers] Re: how to show numbers before each string in ListView

[Jens]

Assuming that you are using a SimpleCursorAdapter you should look into
using a SimpleCursorAdapter.ViewBinder and maybe a custom list item
layout - useful if you want to further dress up your list in the
future.

http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/view/List3.html

When you implement the ViewBinder method #setViewValue(View view,
Cursor cursor, int columnIndex) you can obtain the index of your song
(in the list returned from Sqlite) by calling Cursor#getPosition().

Works about the same-ish for other adapters also.

On 22 Sep, 17:08, KK  wrote:
> Hi All,
> I'm just trying to list song items and displaying it to user for selection.
> I'm using the following ListView for this purposes:
>
>                android:layout_width="fill_parent"
>               android:layout_height="fill_parent"
>               android:layout_weight="1"
>               android:drawSelectorOnTop="false"/>
>
> and this list down the songs like this:
> songa
> songb
> songc
>
> Is there any option maybe shomething like android:numericlist which will
> list the songs like this:
> 1.songa
> 2.songb
> 3.songc
>
> Or may be some other elegant yet simple way to achieve the same effect.
>
> Any help would be highly appreciated.
>
> Thanks,
> KK

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[android-developers] Re: Always getting GET on the server eventhough POST was sent

[Jens]

Well, for a starter your #addHeader("Content-Type", "application/
json") doesn't really make sense since you're in fact sending
application/x-www-form-urlencoded when you're pushing an
UrlEncodedFormEntity to the server - otherwise it looks about right.

Are you getting a HTTP 3xx redirect - that could .. result in a GET..
I guess? You can disable processing of redirects with
HttpClientParams.setRedirecting(.., false) and see if it breaks in new
and interesting ways then.

On 22 Sep, 16:44, Joshua Partogi  wrote:
> Hi there,
>
> I am trying to send data using POST method from my android apps. However in
> the server it is always recognized as GET. I am using Rails apps as the web
> service. Here is the snippet of my Android code:
>
>  URI uri = new URI(hostName);
>
> HttpPost httpRequest = new HttpPost(uri);
>
>  httpRequest.addHeader("Accept", "application/json");
>
>  httpRequest.addHeader("Content-Type", "application/json");
>
>  List pairs = new ArrayList();
>
>  pairs.add(new BasicNameValuePair("key1", "value1"));
>
>  httpRequest.setEntity(new UrlEncodedFormEntity(pairs));
>
> HttpClient httpClient = new DefaultHttpClient();
>
> HttpResponse httpResponse = httpClient.execute(httpRequest);
>
> Have I done anything wrong? Thanks for your help.
>
> Kind regards,
> Joshua.
>
> --
> @jpartogi

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[android-developers] Re: Android is worst os mobile is this true

[Jens]

Let's assume that 3.x is not suitable for mobile phones.

If Google were to release 3.x you can take your pick of the available
3rd world Asian countries that would be putting 3.x in shitty low-end
mobile phones.

Result: Bad-will against Google for putting out such a horrible
product that doesn't work on mobile phones.

Or, they could just be so greedy that they want to keep that
lucrative Android fondleslab market for themselves .. oh right, no,
they don't even make a fondleslab


On Sep 22, 1:34 am, Indicator Veritatis  wrote:
> I never understood the logic behind that decision: why isn't the 3.x
> code being open sourced just like the others? It leaves one doubting
> Google's word, when they say, "We wanted to make sure that there was
> no central point of failure...  why we created Android, and made its
> source code open."
>
> For if that were the real and full reason, then Honeycomb would be
> open too.
>
> On Sep 21, 4:26 pm, Rogério de Souza Moraes 
> wrote:
>
> > I agree that the Android for me is the best choice for a phone OS and you
> > can download the code from 1.x until 2.x, but I think we will never the 3.x
> > codes. With some lucky they will release the 4.x codes without much delay.
>
> > 2011/9/21 Richard Schilling 
>
> > > Sorry you feel this way.
>
> > > There are lots of Android developers on this list, so I'm sure someone
> > > heard you.  In fact, you can be one!
>
> > > You're welcome to download the code and make changes that you feel should
> > > be there.
>
> > > Richard
>
> > > --
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[android-developers] Re: Publish and Debug

[Jens]

 wrote:
> I really have to unsintall the market downloaded apk to run the debug?

No.

> or there is another way to do this?

Yes.

Four easy steps to compromise security:
1. Whip out Portecle (http://portecle.sourceforge.net, no install
required).
2. MAKE A COPY OF YOUR SIGNING KEYSTORE.
3. Use Portecle to rename the key or create a new keystore that
contains your signing key - but now with the name "androiddebug" and
the password "android".
4. Replace your debug keystore with this brand spanking new keystore
and presto - you are debug signing your apps with the same key.

This is of course a *horrifically* bad idea security wise - but fun
nonetheless.

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[android-developers] Re: How to insert special character into Database

[Jens]

One hint: MITHUL'S

http://www.sqlite.org/faq.html#q14

Or .. you know .. you could stop doing hardcoded queries and use the
supporting functionality present in Android.

On Sep 21, 8:44 am, Bishan  wrote:
> @  Zsolt
> no. i got this error.
>
> 09-21 12:07:26.876: INFO/Database(19855): sqlite returned: error code
> = 1, msg = near "S": syntax error
>
> 09-21 12:07:26.876: ERROR/Database(19855): Failure 1 (near "S": syntax
> error) on 0x2ae178 when preparing 'INSERT INTO Client VALUES
> ('110003', 'MITHUL'S ', 'R1', '3', '0', 'HOTEL', 'BRONZ', '4', '3',
> 'MAIN ROAD', 'AAA', 'SSS', '1091', 'weqwe', 'Y')'.
>
> On 9/21/11, Zsolt Vasvari  wrote:
>
> > It's all Unicode, all characters are created equal.
>
> > On Sep 21, 1:38 pm, Bishan  wrote:
> >> How to insert ' character or special character into Database using sqlite
> >> ?
>
> > --
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[android-developers] Re: Send message with C2DM to selected devices

[Jens]

Each device has its own registration ID so you can push messages to a
specific device.

On Sep 19, 9:24 am, Joshua Partogi  wrote:
> hi there,
>
> I am interested to use C2DM for my application. Is it possible to send push
> messages to selected devices only? Or will it send to all devices that has
> my application?
>
> Thank you in advance for your help.
>
> --
> @jpartogi

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[android-developers] Re: ViewFlipper class does not support SurfaceView like it should

[Jens]

That would be the gist of what both Dianne & Romain Guy said yes.

On Sep 20, 2:13 pm, MobileVisuals  wrote:
> GLSurfaceView extends SurfaceView. Does that mean that it is not
> possible to animate GLSurfaceView with a viewflipper?
>
> On Sep 20, 9:54 am, Romain Guy  wrote:
>
> > You can animate another view on top of a SurfaceView, you just cannot
> > animate the SurfaceView itself.
>
> > On Tue, Sep 20, 2011 at 12:51 AM, MobileVisuals 
> > wrote:
>
> > > Thanks for the info, I have spent many hours investigating this issue
> > > and now I finally know what the problem is. My app has a standard 2d
> > > menu. It is possible to view different 3d visual effects from the
> > > menu. The 3d visual effects are rendered in a GLSurfaceView. That
> > > class extends SurfaceView.
>
> > > You say that SurfaceView should not be used in a ViewFlipper. How can
> > > I implement my app if I can't use SurfaceView or GLSurfaceView? Which
> > > type of view should I use for the ViewFlipper? Can I render the 3d
> > > visual effects with other views than GLSurfaceView?
>
> > > Or shouldn't I use a ViewFlipper at all? If not, how can I then switch
> > > between the 2d and the 3d rendering?
>
> > > On Sep 19, 7:37 pm, Dianne Hackborn  wrote:
> > > > Don't use a SurfaceView in a ViewFlipper.
>
> > > > Nor a ListView.
>
> > > > SurfaceView is a *very* *special* view.  As it says, what it does is
> > > create
> > > > a completely separate surface (a.k.a. window) that is associated with
> > > your
> > > > main window.  This window is positioned behind the main window, and a
> > > hole
> > > > punched through your main window to see the surface behind.
>
> > > > By its nature, this makes the interaction between the surface of the
> > > surface
> > > > view and the main view hierarchy limited.
>
> > > > The purpose of SurfaceView is to present static things like video
> > > playback
> > > > or a game playfield in its own surface so that it can draw outside of 
> > > > the
> > > > normal view hierarchy update model (and use OpenGL drawing, different
> > > color
> > > > spaces, etc).  It is not to give a tight integration with the rest of 
> > > > the
> > > > view hierarchy.
>
> > > > You should essentially think of it as an overlay, because really that is
> > > > what it is.
>
> > > > On Mon, Sep 19, 2011 at 10:29 AM, MobileVisuals <
> > > eyv...@astralvisuals.com>wrote:
>
> > > > > My app uses a ViewFlipper. It is possible to flip between the views
> > > > > without problems at first.But after switching to another app and then
> > > > > switching back to the ViewFlipper app, it is not possible to flip
> > > > > between the views. One of the views is always displayed as just a
> > > > > black screen.
>
> > > > > I have investigated the reason for this, using the simplest possible
> > > > > SurfaceView. It is still the same problem.
> > > > > It is not a thread problem, I see that the onDraw method is called
> > > > > like it should. What is the reason for this? Doesn't the ViewFlipper
> > > > > class support SurfaceView like it should?
>
> > > > >  I got the code for the SurfaceView from the basic tuturial:
>
> > > > >http://www.edu4java.com/androidgame/androidgame2.html
>
> > > > > and the code for the View flipper from Mark Murphys View flipper
> > > > > tutorial:
>
> > > > >https://github.com/commonsguy/cw-android/tree/master/Fancy/Flipper1
>
> > > > > This is my code:
> > > > > -
>
> > > > > public class FlipperDemo2 extends Activity {
>
> > > > > ViewFlipper flipper;
>
> > > > > @Override
> > > > > public void onCreate(Bundle icicle) {
> > > > > super.onCreate(icicle);
> > > > > setContentView(R.layout.main);
>
> > > > > flipper=(ViewFlipper)findViewById(R.id.details);
> > > > > GameView lv=new GameView(this.getApplicationContext(),true);
> > > > > flipper.addView(lv,
> > > > >                new ViewGroup.LayoutParams(
> > > > >                ViewGroup.LayoutParams.FILL_PARENT,
> > > > >                ViewGroup.LayoutParams.FILL_PARENT));
> > > > > GameView lv2=new GameView(this.getApplicationContext(),false);
> > > > > flipper.addView(lv2,
> > > > >                new ViewGroup.LayoutParams(
> > > > >                ViewGroup.LayoutParams.FILL_PARENT,
> > > > >                ViewGroup.LayoutParams.FILL_PARENT));
> > > > > flipper.setFlipInterval(2000);//2000
> > > > > flipper.startFlipping();
> > > > > }
> > > > > }
> > > > > --
>
> > > > > public class GameView extends SurfaceView {
>
> > > > >        private SurfaceHolder holder;
> > > > >    boolean blue;
>
> > > > >    public GameView(Context context,boolean _blue) {
>
> > > > >          super(context);
> > > > >          holder = getHolder();
> > > > >          blue=_blue;
> > > > >          holder.addCallback(new SurfaceHolder.Callback() {
>
> > > > >                 @Override
> > > > >                 public void surfaceDestroyed(SurfaceHolder holder) {
>
> > > > >                 }
>
> > > > >             

[android-developers] Re: How is RockPlayer doing hardware decoding?

[Jens]

Or, crack open their app and check the build of the ffmpeg library.

If they "forgot" to do the mandatory sanity checks on their build
(i.e. "forgot" to read http://ffmpeg.org/legal.html that has useful
build instructions) you could always request a copy of the now GPL-
licensed source code to their entire application or file a takedown of
their app.

On Sep 10, 10:37 am, gjs  wrote:
> Hi,
>
> You should ask 'RockPlayer'
>
> Regards
>
> On Sep 9, 6:30 pm, "B.Arunkumar"  wrote:
>
> > Hi,
>
> >     Would somebody have some idea what exactly has RockPlayer done in
> > the Hardware Decoding mode on a high level basis? I mean have they
> > used the mediaplayer as it is or they have changed something at the
> > source code level of MediaPlayer to get more improvements than the
> > MediaPlayer (support more RTSP Url formats) and things like that?
>
> > Thank you,
> > B.Arunkumar
>
> > On Sep 4, 6:42 am, Felix long  wrote:
>
> > > Yes, You're right. The hardware decoding mode only means using inbuilt
> > > MediaPlayer in these players.
>
> > > 2011/9/3 B.Arunkumar 
>
> > > > Thank you for your reply. The RockPlayer gives you the option of
> > > > choosing either the Hardware or Software Decoding mode. The Software
> > > > Decoding mode I am pretty sure does what you are saying, uses the
> > > > FFMPEG package to decode the frames. Does the hardware decoding mode
> > > > of RockPlayer also use FFMPEG? The question I have is the inbuilt
> > > > MediaPlayer and VideoView classes of Android use the inbuilt hardware
> > > > decoder of the device. Is the Hardware Decoding mode of RockPlayer
> > > > doing something similar?
>
> > > > A thought process along the same lines is if it possible to use the
> > > > hardware decoder of the device programmatically through some means?
>
> > > > Thank you,
> > > > B.Arunkumar
>
> > > > On Sep 2, 8:33 pm, Drezden  wrote:
> > > > > I believe they're using a customized build of FFMpeg that gets
> > > > > accessed through the NDK.  FFMpeg has the ability to do a lot of
> > > > > manipulation with video, audio, and images.
>
> > > > > On Sep 2, 9:15 am, "B.Arunkumar"  wrote:
>
> > > > > > Hi,
>
> > > > > >      Would somebody be able to guide me on howRockPlayer/MoboPlayer
> > > > > > does the hardware decoding of image frames?
>
> > > > > > Thank you,
> > > > > > B.Arunkumar
>
> > > > --
> > > > 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
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> > > >http://groups.google.com/group/android-developers?hl=en
>
> > > --
> > > Best Regards
>
> > > Felix Long

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[android-developers] Re: How to get an interval of bytes from a file?

[Jens]

Try java.io.RandomAccessFile.

Call RandomAccessFile#seek() to position the file pointer correctly
and then call one or more of the read(..) methods available in the
RandomAccessFile class. Or you could go balls deep and use a
FileChannel, but that is about as fun as pleasuring yourself with a
cheese-grater.

Oh, and RandomAccessFile#close it afterwards whydoncha.

On Sep 16, 4:04 pm, Lidia  wrote:
> Hello, please help me,
>
> I have to upload different media files, some of them a big, and i have
> the possibility to upload a file in few pieces of encoded string of
> bytes.
>
> I need to read a particular interval of bytes from a file.
> I can't create an array of bytes from the whole file, because the
> application crashes, heap memory is too low, OutOfMemoryError happens.
>
> As i see the following is not what i need:
>
> byte[] output = new byte[(int) bytesToRead];
> InputStream is = new FileInputStream(file);
> is.read(output, offset, bytesToRead);
>
> Thanks in advance
> Lidia

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[android-developers] Re: Have problem with compare arraylists in Android

[Jens]

You typically do not do String comparison using ==, try using the
equals(..) method instead - in your case directly on your ArrayLists.

if (user.equals(mine)) {
  // Start a new activity.
}

Btw, you should consider using generics for your lists, e.g.

ArrayList mine = new ArrayList();

On Sep 16, 4:27 pm, Zwiebel  wrote:
> I need to have two arraylists. I declared them. I declared a "mine"
> arraylist and an "user" arraylist with this code:
>
>       ArrayList mine = new ArrayList();
>         ArrayList user = new ArrayList();
>
> I want to store in these values, what are will be important to contact
> with the user:
> I added values to my mine arraylist:
>         mine.add("0");
>             mine.add("1");
>             mine.add("0");
>
> I want to add a values to the user named arraylist if the user press a
> button. So I added this code:
>     user.add("0");
>
> and
>
>     user.add("1");
>
> to an another button.
>
> I added two
>
>     Log.i("user", user.toString());
>
> line to the buttons so I can follow how the arraylist looks like in
> the appropriate moments.
>
> Then if the user clicks an another button, I want to compare these
> lists, so I implemented the following code:
>
>         for (int j = 0; j < user.size(); j++) {
>                             for (int k = 0; k < mine.size(); k++) {
>                                 if (user.get(j) == mine.get(k)) {
>                                     //start a new activity
>                                 }
>
> If the two arraylists are the same in the order and in values, I want
> to show a new screen (its name is for example good), and if not I want
> to show an another( its name is for example lose). But I have a
> problem. My program is only show my lose screen if the user only
> clicked the button which add 1 to the arraylists, or if he/she only
> clicked the button which add 0 to the arraylist. How can I make my
> program to run as I want? Thanks in advance

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[android-developers] Re: Hide Phone Number in the Dialer

[Jens]

Have you tried supplying your own account manager implementation,
adding a contact with the display name "My Special Number" and then
sending your dialer Intent?

Since you cannot override (afaik) the dialer from appspace that'd
pretty much be the only way of doing it.

On 11 Sep, 01:44, mwllace  wrote:
> Im using  and intent to invoke the default dialer and automatically
> call  phone number stored in my application. Everything works fine,
> but the number is visible in the default dialer UI. I need to display
> something else in place of the number like "My Special Number". The
> behavior would be much like when a user dials a number already stored
> in contacts, where the name of the person is visible and not the
> underying phone number.
>
> I am able to update the call logs so they read "My Special Number"
> when my app dials this number, but this is only after the phone is
> hung up.
>
> This is the way I update the Call Log:
>
> values.put(CallLog.Calls.CACHED_NAME, "My Special Number");
>
> Is there a similar method for writing to the default dialer when the
> call is initiated?
>
> Thanks for any pointers you can provide!

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[android-developers] Re: can Wi-Fi and 3G establish network connections individually and simutaneously on a single android?

[Jens]

Yes.

Using

http://developer.android.com/reference/android/net/ConnectivityManager.html#TYPE_MOBILE_HIPRI

you should be able to do short, explicitly routed transmissions on the
mobile network while maintaining a WiFi connection. There's a timeout
on the TYPE_MOBILE_HIPRI request and you may need to refresh it every
minute or so to maintain the connection.


On 14 Juli, 06:33, Ryan  wrote:
> Hi ,
> can Wi-Fi and 3G establish network connections individually and
> simutaneously on a single android?
> thanks

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[android-developers] Re: CursorAdapter over multiple columns

[Jens]

Yeah, you should just do a join between table A and table B that
includes the required column from B and use that in your cursor
adapter.

A simple google search for sqlite join would give you a clear how-to.

On 29 Juni, 07:39, jjoe64  wrote:
>  i don't understand your problem.
> did you joined your two tables?

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[android-developers] Re: Initial setup after app install/update?

[Jens]

If your app includes a broadcast listener for one of the more spammy
intents you can create a somewhat delayed setup this way.
Plz remember to disable the listener afterwards using
PackageManager#setComponentEnabledSetting(..)

On 15 Juni, 16:29, Joshua Partogi  wrote:
> Hi all,
>
> Is it possible to implement an initial setup after the app has been installed?
>
> Kind regards,
> Joshua
>
> --
> @jpartogi

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[android-developers] Re: How to add APP icon to desktop automatically

[Jens]

If you're building the system image and are using Launcher2 as your
homescreen (or a version thereof) you could just add it to the
default_workspace.xml

http://android.git.kernel.org/?p=platform/packages/apps/Launcher2.git;a=blob;f=res/xml/default_workspace.xml;h=30c542a4f9dabf0160ff700f53bcba3348009902;hb=refs/heads/master

The default_workspace.xml file is read in
LauncherProvider#loadFavorites(SQLiteDatabase db) (same git), which
will show you how they do it.

On 15 Juni, 10:00, June Hello  wrote:
> Sorry for my mistake, I put my app in source code and make it into the
> system.img, so there is no need to install it. I think it is a system
> package, is it right?
>
>
>
>
>
>
>
> On Wed, Jun 15, 2011 at 3:30 PM, Jens  wrote:
> > You cannot obtain the required permissions unless your application is
> > installed as a system package.
>
> > On 14 Juni, 09:41, June_Hello  wrote:
> > > Hi folks,
> > > I find that when  switch on the mobile, some icon of the application
> > > (for example. Mms , Phone, Contacts) has been added on desktop by
> > > default, so my question is if I write a new  application, how can I
> > > add the icon to desktop like that (I do development on source code ,so
> > > need to install xxx.apk, just make it and release it with system
> > > image)
> > > thanks for any help
>
> > --
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> > Groups "Android Developers" group.
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[android-developers] Re: How to add APP icon to desktop automatically

[Jens]

You cannot obtain the required permissions unless your application is
installed as a system package.


On 14 Juni, 09:41, June_Hello  wrote:
> Hi folks,
> I find that when  switch on the mobile, some icon of the application
> (for example. Mms , Phone, Contacts) has been added on desktop by
> default, so my question is if I write a new  application, how can I
> add the icon to desktop like that (I do development on source code ,so
> need to install xxx.apk, just make it and release it with system
> image)
> thanks for any help

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[android-developers] Re: opening a url in browser with post data from an activity

[Jens]

WebView webView = ;
List parameters = new ArrayList();
parameters.add(new BasicNameValuePair("parameter1", "someValue"));
parameters.add(new BasicNameValuePair("id", "12345"));
parameters.add(new BasicNameValuePair("encodingTest", "&\";"));
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(parameters);
webView.postUrl("http://some.host.com/path";,
EntityUtils.toByteArray(entity));

If you need a specific encoding on your posted data you supply that in
the alternative ctor of UrlEncodedFormEntity.

On 13 Juni, 13:41, Shashidhar  wrote:
> Hi,
>  I need to open a browser with a URL when I click on a button in my
> activity.
> The URL has some parameters which I need to send it using HTTP POST method.
> I am able to get it working with the GET request where we append the
> parameters to the end of the URL.
> But, I need the POST method way.
> Any Ideas on how to send the URL data using POST method to open it in
> browser.
>
> Thanks,
> Shashidhar

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[android-developers] Re: Encoding image into Base64

[Jens]

That depends wholly on your backend - although a backend that requires
you to use Base64 encoding seems a tad bit pointless.

Are you sure you're not supposed to post the image directly (using a
FileEntity or InputStreamEntity for instance) - with the correct
Content-Type set of course?

On 9 Juni, 12:12, perumal316  wrote:
> Hi All,
>
> I need to do a HTTPPost of a Jpeg and a Jpeg2000 image to a backend.
> For Jpeg I converted it to byte array and did a Base64 encoding using
> the Base64 class which is available in Android.
>
> See:http://developer.android.com/reference/android/util/Base64.html
>
> Is this the correct way to do? Because I am not receiving any image in
> the backend.
>
> This is for jpeg. Is I do the same steps using Jpeg2000 my application
> crashed.
>
> How do I do a HTTPPost of a Jpeg2000 image? Is encoding of image to
> Base64 a must? Is there any other way?
>
> Thanks In Advance,
> Perumal

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[android-developers] Re: How to get manifest values?

[Jens]

AFAIK the GET_INTENT_FILTERS flag in PackageManager has never been
implemented (even though it's been declared since version 1 of the
API).

If it's your own manifest file you want to access Dougs advice is spot
on - if you want to inspect the intent-filters of other applications
your SOL.

On 9 Juni, 14:05, Ashok Jeevan  wrote:
> Hi
>
> I need to get MIME type values from the manifest file in an Activity class.
>
> Is there any way to access values from the manifest?
>
> Ashok Jeevan
> +91 9895401278

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[android-developers] Re: Android MD5 Hash doesn't match Hash generated from .NET application

[Jens]

EncodingUtils#getString(byte[], String) is for byte array to String
conversions, given a *character set* - not a *transfer encoding* (such
as Base64).

You want to use android.util.Base64 (available since 2.2).

On 6 Juni, 13:13, Mark Murphy  wrote:
> You are not generating Base64 output from the Android code, as is
> blindingly obvious by looking at your output and seeing that it is not
> Base64-encoded. I have no idea if EncodingUtils is supposed to support
> Base64 -- that's not documented.
>
> On Fri, Jun 3, 2011 at 3:10 PM, aa...@radich.com
>
>
>
>
>
>
>
>
>
>  wrote:
> > I'm using the following Android code to generate a HmacMD5 hash.  When
> > I generate the hash from the Android App I get the following:
> > J0t j#߸ bq- .  When I generate the hash from a .net console
> > application I get: SjB0j+xqI9+4hxticS0Cjw==.  Notice the difference
> > and that the Android has has special chars in it.  Is this a character
> > set issue?
>
> > Aaron
>
> > ==
> > Here's the Android code:
>
> > public class HMACMD5 {
>
> >   private final String HMAC_MD5_NAME = "HmacMD5";
>
> >   private SecretKeySpec sk;
> >   private Mac mac;
>
> >   public HMACMD5(byte[] key) throws GeneralSecurityException {
> >      init(key);
> >   }
>
> >   public HMACMD5(String key) throws GeneralSecurityException {
> >      init(EncodingUtils.getAsciiBytes(key));
> >   }
>
> >   private void init(byte[] key) throws GeneralSecurityException {
> >      sk = new SecretKeySpec(key, HMAC_MD5_NAME);
> >      mac = Mac.getInstance(HMAC_MD5_NAME);
> >      mac.init(sk);
> >   }
>
> >   public byte[] ComputeHash(byte[] data) {
> >      return mac.doFinal(data);
> >   }
>
> >   public byte[] ComputeHash(String data) {
> >      return ComputeHash(EncodingUtils.getAsciiBytes(data));
> >   }
> > }
>
> > public String encodeText(String sKey, String sSrc) throws Exception {
> >      HMACMD5 hmacMD5 = new HMACMD5(sKey);
> >      byte[] textBytes = EncodingUtils.getBytes(sSrc, "UTF-8");
> >      byte[] encodedTextBytes = hmacMD5.ComputeHash(textBytes);
> >      String sEncodedText = EncodingUtils.getString(encodedTextBytes,
> > "BASE64");
> >      return sEncodedText;
> > }
>
> > ==
> > Here's the .NET code:
>
> > public static string EncodeText(byte[] key, string sText, Encoding
> > encoding)
> > {
> >   HMACMD5 hmacMD5 = new HMACMD5(key);
> >   byte[] textBytes = encoding.GetBytes(sText);
> >   byte[] encodedTextBytes = hmacMD5.ComputeHash(textBytes);
> >   string sEncodedText = Convert.ToBase64String(encodedTextBytes);
> >   return sEncodedText;
> > }
>
> > --
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> > Groups "Android Developers" group.
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> Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy
>
> _The Busy Coder's Guide to *Advanced* Android Development_ Version
> 1.9.3 Available!

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[android-developers] Re: How to read data from ./asset/ files correctly?

[Jens]

>i think this is incorrect and slow.

Hell yes. Do you need the entire asset "in-memory"? Then you should
either consider reading it into a ByteArrayOutputStream or
allocate the required bytes as an array after determining the size of
the asset.

>I do not know how to get datasize from inputstream and i read data two
>time :-)

Use the android.content.res.AssetFileDescriptor & call #getLength() /
#getDeclaredLength()?

Works like a charm. Remember to call #close() on the
AssetFileDescriptor.

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[android-developers] Re: Connecting to https server from java

[Jens]

It's also quite possible the certificate chain is a bit iffy.

You can check this quite easily by surfing to the URL with the *built-
in browser* in your Android phone. If the certificate works there but
*not* in your app (i assume you are using the Apache HttpClient?) its
most often your chain that is ordered incorrectly.

The built-in browser had a fix (afaik) for badly ordered certificates,
HttpClient does not.


If you are using a self-signed certificate or a root certificate not
in the phone you'll have to do it the hard way and add your own
truststore (AuthSSLProtocolSocketFactory for instance). Uh, and
Android only support BKS for the keystore I think.

On 23 Maj, 04:23, DanH  wrote:
> Assuming the server is legitimate, you basically see this problem
> because the certificate presented by the HTTPS server doesn't have a
> certificate chain that can be verified against one of the root
> certificates on the phone.  It may be possible to download and install
> a new (additional) root authority certificate on the phone (I don't
> know if this is possible on Android -- it isn't on some phones).  If
> not, or if you want a "fix" that doesn't require actions on the part
> of the user, you can either tell the HTTPS protocol to not verify the
> server's cert (not particularly dangerous if the trusted URL is
> hardwired into your app), or you can include a suitable root cert in
> your application and give that to the HTTPS protocol for its use.
> (I'm not familiar with how precisely you do these things on Android.)
>
> On May 22, 6:58 pm, dashman  wrote:
>
> > I'm trying to connect to a server via https and am getting
> > invalid server certificate.
>
> > how do i solve this.
>
>

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[android-developers] Re: regarding HTTPClient : How to get the HTTP request posted by the native browser

[Jens]

Apache - as in the HttpClient, org.apache.http.* or the web server?
Further - the browser in the phone typically doesn't use the apache
HTTP client library, it's JNI to WebKit.

The good thing is that you're not going to be able to sniff either
without building your own firmware and flashing the phone.

On 19 Maj, 13:41, Viju  wrote:
> Hi,
>
> Is it possible to get all the HTTP URL request triggered by the
> browser (Apache) from my client application ? If then, can you please
> tell me the framework API which gives me the URL ?
>
> I'm developing some kinda of HTTP sniffer application for android
> which will log all the HTTP Url request made by the native browser
> (Apace) and store it in a local file.

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[android-developers] Re: How to get synced Google contact group programmatically ?

[Jens]

I assume you mean :

http://developer.android.com/reference/android/provider/ContactsContract.Groups.html
http://developer.android.com/reference/android/provider/ContactsContract.CommonDataKinds.GroupMembership.html

Groups & group membership information is in the same ContentProvider
that stores the actual contacts synced with Google.

On 19 Maj, 08:55, Goutom  wrote:
> Hi All
>
> We know android phone can sync google contact group dynamically if we add
> account.Now I want to get the file where the groups information  are saved.I
> need code to get groups information and need to show in my activity.
>
> Can any one help ?
>
> Cheers
> Goutom
> WebRep
> Overall rating

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[android-developers] Re: How to enable and disable OpenGL2.0 in andorid

[Jens]

1. You need a real device. OpenGL ES 2.0 is not something you can play
with on the emulator.
2. Go here:

http://code.google.com/p/gdc2011-android-opengl/wiki/TalkTranscript
https://code.google.com/p/gdc2011-android-opengl/source/browse/trunk/


On 17 Maj, 07:52, Jetti  wrote:
> Hi,
>
> I want to learn OpenGL2.0 in android.But I didn't find the way how to
> enable and disable OpenGL2.0 in andorid and Android Browser. If anyone
> knows please help me on this..
>
> Thanx in advance..

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[android-developers] Re: good 2d physics engine

[Jens]

JBox2D is decent enough. If you're writing a game using the NDK you
should probably use the normal Box2D, it compiles readily on Android.

On 11 Maj, 20:28, bob  wrote:
> Can anyone recommend a good 2d physics engine for Android?

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[android-developers] Re: Building C code for Android (no Java/jni)

[Jens]

Yeah, using NativeActivity (2.3+) from the NDK you can sometimes get
away without writing any java code at all.

On 3 Maj, 18:28, Justin Anderson  wrote:
> Without using the NDK it is not possible...
>
> Thanks,
> Justin Anderson
> MagouyaWare Developerhttp://sites.google.com/site/magouyaware
>
> On Tue, May 3, 2011 at 3:47 AM, Mark  wrote:
> > Hi,
> > Can anyone tell me how to compile+build a program, written in C on
> > Android?  There's no Java code and I don't want a shared lib to use
> > with JNI.  The NDK does not seem to help here.
>
> > --
> > You received this message because you are subscribed to the Google
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[android-developers] Re: Force Close on Click in Calendar after i delete all information set in it

[Jens]

It's especially problematic if you're trying to work with closed
source, such as Android 3.0 - you should consider setting
maxSdkVersion to prevent people from seeing your app on 3.0.

On 2 Maj, 15:34, Dianne Hackborn  wrote:
> You can expect individual devices to behave differently when you are using
> private APIs like these, regardless of platform version.  Writing code like
> this is going to be a continual source of trouble for you.
>
>
>
> On Mon, May 2, 2011 at 4:36 AM, Alok Kulkarni  wrote:
> > Hi All,
> >  I am trying to remove all Calendar related entries from a phone(Galaxy
> > tab)
> > Here is the code
>
> > /**
> >         * Deletes all calendar info
> >         */
> >        private boolean _deleteCalendarInfo() {
> >                try {
>
> >                        String uriPrefix;
> >                        if (Build.VERSION.SDK_INT <=
> > Build.VERSION_CODES.ECLAIR_MR1) {
> >                                uriPrefix = "content://calendar/";
> >                        } else {
> >                                uriPrefix =
> > "content://com.android.calendar/";
> >                        }
>
> >                        int cnt = contentResolver.delete(Uri.parse(uriPrefix
> > + "events"),
> > null, null);
> >                        Log.i("Data Wipe","Calendar events deleted Count
> > "+cnt);
> >                        contentResolver.delete(Uri.parse(uriPrefix +
> > "calendars"), null,
> >                                        null);
> >                        Log.i("Data Wipe","Calendars events deleted Count
> > "+cnt);
> >                } catch (Exception e) {
> >                        // TODO Auto-generated catch block
> >                        e.printStackTrace();
> >                        Log.i("Data Wipe","Calendar delete
> > failed"+e.toString());
> >                        return false;
> >                }
> >                return true;
> >        }
>
> > The code executes successfully, but after that when i go into calendar
> > manually and try to add an event, it is giving force close with
> > following error
> > "android.database.CursorIndexOutOfBoundsException: Index 0 requested,
> > with a size of 0"
>
> > Detailed stack trace:-
>
> > 05-02 14:02:08.077: ERROR/AndroidRuntime(3412): Caused by:
> > android.database.CursorIndexOutOfBoundsException: Index 0 requested,
> > with a size of 0
> > 05-02 14:02:08.077: ERROR/AndroidRuntime(3412):     at
> > android.database.AbstractCursor.checkPosition(AbstractCursor.java:580)
> > 05-02 14:02:08.077: ERROR/AndroidRuntime(3412):     at
>
> > android.database.AbstractWindowedCursor.checkPosition(AbstractWindowedCursor.java:214)
> > 05-02 14:02:08.077: ERROR/AndroidRuntime(3412):     at
>
> > android.database.AbstractWindowedCursor.getInt(AbstractWindowedCursor.java:84)
> > 05-02 14:02:08.077: ERROR/AndroidRuntime(3412):     at
> > android.database.CursorWrapper.getInt(CursorWrapper.java:123)
> > 05-02 14:02:08.077: ERROR/AndroidRuntime(3412):     at
> > com.android.calendar.EditEvent.setCalendarData(EditEvent.java:4098)
> > 05-02 14:02:08.077: ERROR/AndroidRuntime(3412):     at
> > com.android.calendar.EditEvent.onCreate(EditEvent.java:2333)
> > 05-02 14:02:08.077: ERROR/AndroidRuntime(3412):     at
> > android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
> > 05-02 14:02:08.077: ERROR/AndroidRuntime(3412):     at
> > android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
> > 05-02 14:02:08.077: ERROR/AndroidRuntime(3412):     ... 11 more
>
> > I have probably found  what the problem is on Stack Overflow.It states
> > "Query is returning 0 rows, which is why you are getting an error
> > attempting to use the 1st row of a 0-row Cursor"
>
> > Is there any better way to Delete all calendar info ?
> > Thanks,
> > Alok
>
> > --
> > You received this message because you are subscribed to the Google
> > Groups "Android Developers" group.
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> > To unsubscribe from this group, send email to
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> >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 do you counter repeated bogus reviews from competitors?

[Jens]

>  I am wondering how do you deal with this? What steps do you take to
> prevent such abuse of Android Market?

Payback - it can be a bitch.

Step 1. Download app from offending party.
Step 2. Decompile app from offending party.
Step 3. Fill it to the brim with malware.
Step 4. That's not enough! Try to cram in more malware!
Step 5. Repeat 3-4 until you get bored.
Step 6. Build and put it up on warez-sites.

Or you could just maintain the moral high ground - hopefully the
market team will get around to fixing the entire Market experience
some time soon.

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[android-developers] Re: I am developing android application and I have to take my photo using browse button.

[Jens]

If you're looking for a way to use the gallery applications image
picker in your form to allow the user to select an image you should
refer to
ACTION_PICK in the Intent class. Or, lmgtfy:

http://stackoverflow.com/questions/550905/access-pictures-from-pictures-app-in-my-android-app

This will start the image pic
On 21 Apr, 07:36, rekha yadav  wrote:
> I am devloping android application. I have created a form. On the form
> I have to browse my stored images in the mobile.
>
> Please help me how to do the same task. I am new to android
> development.

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[android-developers] Re: SAXParser throws exception for bad character in CDATA block, bug???

[Jens]

Unfortunately it appears he's parsing a vBulletin RSS feed, i.e. its
most likely something he has little or no control over - and if the
host he is scraping ever upgrades to a version that fixes this odd
behavior (i.e. mixing character encodings) his app should not break if
he supplies a Reader to the "emergency fix" that actually uses the
character set declared by the server.

Fortunately it appears he's parsing a vBulleting RSS feed - i.e.
transient events that hopefully aren't super important in anything but
the "near scope".

On 22 Apr, 02:46, Bob Kerns  wrote:
> Oh, one other model that may help put all this in context -- and make it
> plain that there really is no other way for it to be.
>
> The confusion here stems from confusing bytes and characters. XML works with
> characters.
>
> The encoding (UTF-8, ISO-8859-1) of an XML document refers to how a stream
> of characters is encoded into a stream of bytes -- and, on input, bytes into
> characters.
>
> XML is then defined in terms of a series of characters.
>
> CDATA then says how those characters are treated.
>
> The failure here, happens at the level of interpreting the bytes. The bytes
> that your byte stream is presenting, cannot be converted into ISO-8859-1
> characters.
>
> FAIL. It hasn't even gotten to the XML parser. Depending on the buffering
> going on, in fact, the XML parser may not yet even have seen the start of
> the CDATA section.
>
> The failure here is simply that a supposed ISO-8859-1 stream -- is not. It
> really has nothing to do with CDATA or XML at all.
>
> Jens' approach operates at this level -- it turns a byte stream that is not
> a valid ISO-8859-1-encoded byte stream, into one that at least *appears* to
> be an ISO-8859-1-encoded byte stream.
>
> If it happens to be a UTF-8 byte stream (ISO-10646 encoded via UTF-8), it
> will be gibberish -- even many valid ISO-8859-1 characters will become
> gibberish bytes mis-interpreted, rather than the ISO-8859-1 characters they
> started out life as.
>
> That's why I don't like Jens' solution. (I doubt Jens likes it either --
> this is a "hold your nose" sort of situation). It really has the potential
> to make things much worse.
>
> I hope that makes it a bit more clear.

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[android-developers] Re: This is True / False or a bug!?

[Jens]

You could start with your broken string comparison.

(xx==Local1);

Use String#equals(String) instead if you're not trying to ascertain if
xx and Local1 are both *instances* of the same String object.

On 20 Apr, 06:08, Perry168  wrote:
> Hi,
> Today, I wrote a program. The function is to get the installed
> packages name through the provider name. But I find a problem, when I
> compare two SAME strings. The Boolean result will be FALSE.
> I used the Eclipse to watch the value change. From expression, I saw
> the Local1 and xx are same. But the Boolean bb is false. Also I
> installed the apk to phone too. I found the result is "FALSE" too.
> I don’t know the problem come from and how to fix it.
> I hope who can teach me.
> Following is my main.XML and source.
>
>  < XML >
>
> 
> http://schemas.android.com/apk/res/
> android"
>     android:orientation="vertical"
>     android:layout_width="fill_parent"
>     android:layout_height="fill_parent"
>     >
>      android:layout_width="wrap_content"
> android:layout_height="wrap_content">
>      android:layout_width="wrap_content"
> android:layout_height="wrap_content">
> 
>
> < JAVA SOURCE >
> import java.util.List;
> import android.app.Activity;
> import android.content.pm.PackageInfo;
> import android.content.pm.ProviderInfo;
> import android.os.Bundle;
> import android.view.View;
> import android.view.View.OnClickListener;
> import android.widget.Button;
> import android.widget.TextView;
>
> public class FindPackage extends Activity  implements OnClickListener
> {
>
>     TextView tV1;
>     Button bn1;
>         String xx = "com.android.alarmclock";
>         Boolean bb = false;
>
>     @Override
>     public void onCreate(Bundle savedInstanceState) {
>         super.onCreate(savedInstanceState);
>         setContentView(R.layout.main);
>
>     tV1 = (TextView) findViewById (R.id.tV1);
>     bn1 = (Button) findViewById (R.id.bn1);
>     bn1.setOnClickListener (this);
>     }
>
>         @Override
>         public void onClick(View v) {
>
>         if (v == bn1){
>                 List   aa = null;
>                 ProviderInfo [] kk = null;
>                 String Local1 = "";
>                 aa =  this.getPackageManager().getInstalledPackages(8); // 
> Get all
> Packages
>                 int i = aa.toArray().length-1; // Get Number of Packages
>
>         while (i>=0)
>         {
>                 kk = aa.get(i).providers; // Withdraw the Provider
>                 if (kk == null){
>                         i--;
>                         continue;
>                 }
>                 if (kk[0].name.contains("Alarm")) // Checking the Provider 
> name
> which has Alarm word"
>                                 {
>                                 Local1 = kk[0].packageName; // put the 
> package name into
> Local1
>                                 break;
>                                 }
>                 i--;
>         }
>
>                 i = 0;
>
>             bb = (xx==Local1);
>
>             tV1.setText(bb+""); // Show the result
>
>         }
>
>         }
>
> }
>
>

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[android-developers] Re: Intercepting HTTP Requests in Android

[Jens]

Not using the SDK (thankfully). In a custom platform build, sure.

On 21 Apr, 12:32, gauri  wrote:
> Hello,
>          I want to intercept outgoing HTTP requests. Are there any
> intents in Android which are broadcasted when such requests are sent?
> Or are there any methods in java which can be used to listen to ports
> through which requests are sent out .
>
> Thanks in advance.

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[android-developers] Re: which is the best way to play encrpted song instantly?

[Jens]

What is the output of your decrypted stream? If it is PCM you can dump
it directly in an AudioTrack and play it that way.

If its something else, i.e. MP3, you can include a decoder for your
format and decode to PCM yourself and still use AudioTrack.



On 20 Apr, 06:01, Hitendrasinh Gohil 
wrote:
> hi,
> "play while you decrypt."...how i can do it?
>
> --
> Regards,
> Hitendrasinh Gohil

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[android-developers] Re: How to produce a closed source library ?

[Jens]

I'm guessing he wants to build a .jar file and distribute it to
customers.

It can be done relatively easily as long as you *do not have any
dependencies into the res/ folder* in your jar - a custom ant script
that runs aidl (if necessary), compiles the code (including your
android.jar in the class-path), runs obfuscation and finally executes
a  ant-task to build the JAR-library.


On 20 Apr, 18:59, TreKing  wrote:
> On Fri, Apr 15, 2011 at 3:46 AM, Fougère  wrote:
> > I would like to keep the source closed (it is a professional project with
> > no open-source allowed). Is there a way to do it ?
>
> You may want to elaborate your question. I assume "don't publish the source"
> is not the answer you're looking for.
>
> -
> TreKing  - Chicago
> transit tracking app for Android-powered devices

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[android-developers] Re: SAXParser throws exception for bad character in CDATA block, bug???

[Jens]

No its a bug in your feed.

CDATA is "not parsed" in the sense that characters that otherwise
would be recognized as mark-up are ignored - it's not a carte blanche
to add binary junk/"illegal characters" to XML.

Try passing something like this instead (wrapped in an InputSource) to
the SAXParser#parse method.

class StripReader extends Reader {
private final Reader mReader;
public StripReader(Reader reader) {
mReader = reader;
}
@Override
public boolean markSupported() {
return false;
}
@Override
public void close() throws IOException {
mReader.close();
}
@Override
public int read(char[] cbuf, int off, int len) throws 
IOException {
int n = 0;
int ch = 0;
for (int i = 0; i < len; i++) {
ch = read();
if (ch != -1) {
cbuf[off + n++] = (char) ch;
}
}
return (n == 0 && ch == -1) ? -1 : n;
}
@Override
public int read() throws IOException {
int ch;
do {
ch = mReader.read();
} while (ch != -1 && !validChar(ch));
return ch;
}

private boolean validChar(int ch) {
// Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | 
[#xE000-#xFFFD] |
[#x1-#x10]
/*  any Unicode character, excluding the surrogate blocks, FFFE, and
. */
return ch == 0x9 || ch == 0xA || ch == 0xD || (ch >= 
0x20 && ch <=
0xD7FF) || (ch>=0x1 && ch <=0x10);
}
}

On 15 Apr, 22:54, Phil Bayfield  wrote:
> I'm having an issue with SAXParser on an RSS feed from a vBuletin forum.
>
> The parser throws SAXException - At line 212, column 26: not well-formed
> (invalid token) when it encounters a right apostrophe character 
> -http://www.fileformat.info/info/unicode/char/2019/index.htm
>
> I realise this is a unicode character and the feed is ISO-8859-1, however
> the character falls in a CDATA block, which the parser is supposed to
> ignore.
>
> Anyone encountered this before and know a work around? I've tried things
> like forcing UTF-8 with no luck.
>
> Is this a bug that the parser is not ignoring data in the CDATA block?

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[android-developers] Re: How to force use only gprs even though wifi is available

[Jens]

It is.

http://developer.android.com/reference/android/net/ConnectivityManager.html#TYPE_MOBILE_HIPRI


On 15 Apr, 07:18, kiran  wrote:
> Yes you are right, But thing is my application itself making wifi on.
> Is it not possible to on wifi and gprs at a time?
>
> On Apr 14, 2:34 pm, Kostya Vasilyev  wrote:
>
> > You can disable WiFi by calling WifiManager.setWifiEnabled(false).
>
> > Just don't forget to tell the user you're doing this.
>
> > -- Kostya
>
> > 14.04.2011 13:18, saikiran n пишет:
>
> > > Hi,
>
> > > I am using internet in some application. If any wifi configuration is
> > > available while my application is running it is switching to wifi
> > > instead gprs.
> > > How can stop switching. My requirement is i have to use only gprs.
> > > Thanks in advance
>
> > --
> > Kostya Vasilyev --http://kmansoft.wordpress.com
>
>

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[android-developers] Re: Reusable HttpResponse in android network programming?

[Jens]

You can wrap the HttpEntity in a BufferedHttpEntity and reuse that.


DefaultHttpClient client = new DefaultHttpClient();
HttpGet get = new HttpGet("http://www.somearbitraryurl.com";);
HttpResponse response = client.execute(get);
HttpEntity reusableEntity = new
BufferedHttpEntity(response.getEntity());

If you need to have it wrapped in a HttpResponse you can always try
and create an instance of BasicHttpResponse like so:

BasicHttpResponse reusableResponse = new
BasicHttpResponse(response.getStatusLine());
reusableResponse.setHeaders(response.getAllHeaders());
reusableResponse.setEntity(reusableEntity);

On 11 Apr, 11:35, mathcat  wrote:
> Hi geeks!
>
> As using the network package which apache provides, we usually do :
> HttpResponse resp = httpClient.execute(httpRequest);
>
> When I retrieve the HttpEntity object of the response, open the
> InputStream and extract the data in it, the HttpResponse object
> becomes unusable. If I try to do the thing again, exception occurs.
>
> Here I wish to reuse the HttpResponse, mostly for caching. But the
> HttpResponse object returned is type interface, I cannot call clone.
>
> Is there any way I can reuse the HttpResponse ?

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[android-developers] Re: how do i devlope an android keybord

[Jens]

The developer sample doesn't work anymore?

http://developer.android.com/resources/samples/SoftKeyboard/index.html

On 9 Apr, 21:13, ariel  wrote:
> so i will try to rephrase my question.
>
> how i can build a keybord.
>
> On Apr 9, 2:10 am, Spiral123  wrote:
>
> > hi Ariel.
>
> > can you rephrase your statement as a question please?  When you say
> > "it dont run like keybord" what do you mean?
>
> > How did you try to run it?  In what way did it not run like keybord?
>
> > On Apr 8, 7:09 am, ariel  wrote:
>
> > > i try to dwonload SoftKeyboardLanguagePackTemplate but it dont run
> > > like keybord

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[android-developers] Re: Using Google Calendar API

[Jens]

If you cannot find precompiled APKs of the calendar and calendar
provider (i.e. lift them from an actual Android device) you can build
the platform yourself:

http://source.android.com/source/initializing.html

and build your own SDK - it should contain the APKs you're looking
for. Optionally, you can copy the APKs from the build and install them
on the emulator you're already running.

Most devices should contain at least the provider but you should take
proper care and consider that you are effectively trying to integrate
with a 3rd party app that is different between different versions of
Android (such as the different URI authorities used by the provider)
and vendors (We've patched this particular provider for one phone
manufacturer already).

On 11 Apr, 09:52, New Developer  wrote:
> Thanks,  Jens
>
> Yes this is on the emulator
>
> Can you please tell me more about the Platform sources option  and tutorials 
> to explain just what to do
> Thanks in advance
>
> On Apr 11, 2011, at 3:10 AM, Jens wrote:
>
> > Are you running this on an emulator? They typically do not contain the
> > calendar or calendar provider applications.
>
> > You can build (from the platform sources) and install your own
> > calendar provider APK on the emulator though.
>
> > On 10 Apr, 21:08, New Developer  wrote:
> >> anyone solved the use of Google Calendar API ?
>
> >> tried the method  from  http://jimblackler.net/blog/?p=151
> >> content://calendar/calendars"   and    
> >> content://com.android.calendar/calendars"
>
> >> I get the ERROR
> >> Failed to find provider info for com.android.calendar
>
> >> when I try the  google gdata  api's
>
> >> I have the jar files connected via  external libraries
> >> but this generates, compiles and shows no errors but executes with this 
> >> runtime ERROR
>
> >> Could not find class 'com.google.gdata.client.calendar.CalendarService',
>
> >> Thanks in advance
>
> > --
> > You received this message because you are subscribed to the Google
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[android-developers] Re: Using Google Calendar API

[Jens]

Are you running this on an emulator? They typically do not contain the
calendar or calendar provider applications.

You can build (from the platform sources) and install your own
calendar provider APK on the emulator though.


On 10 Apr, 21:08, New Developer  wrote:
> anyone solved the use of Google Calendar API ?
>
> tried the method  from  http://jimblackler.net/blog/?p=151
> content://calendar/calendars"   and    
> content://com.android.calendar/calendars"
>
> I get the ERROR
> Failed to find provider info for com.android.calendar
>
> when I try the  google gdata  api's
>
> I have the jar files connected via  external libraries
> but this generates, compiles and shows no errors but executes with this 
> runtime ERROR
>
> Could not find class 'com.google.gdata.client.calendar.CalendarService',
>
> Thanks in advance

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[android-developers] Re: Parsing data from a calender on a website

[Jens]

Yeah.. that's not going to work for most/any sites.

The output of the average brainless HTML-monkey will not parse with a
proper XML parser - which is why Google themselves saw fit to use
TagSoup internally for HTML rendering (its used for instance to
"render" HTML in TextView:s).

You can include TagSoup in your app, you'll get a few warnings in
Eclipse since its already in the platform (but hidden as usual).

On 8 Apr, 11:43, harsh chandel  wrote:
> hi
> you can use the saxparser or dom parser you can find example
> on android developer.
> to put the whole data in your application and then use it.
>
> On Apr 6, 8:52 pm, Neutron_boy  wrote:
>
> > I am fairly new to Android, but have some experience reading and
> > understanding code, including Java.
> > My question is: If I want to parse a URL such as a calender from a web
> > page, how do I go about this?
>
> > My thoughts: To pull the XML, do I use text?
> > i.e.:
>
> > try {
> > URL text = new URL( http:// and here is where I am not sure what to
> > have. The script below is the source for the calender in the XML of
> > the website
> >  > src="9278a6f3de5f9e54f2aeeb74ac1f0a7eembedcompiled__en.js">)
>
> > Do I then follow with XmlPullParserFactgory parserCreator =
> > XmlPullParserFactory.newInstance();
> > XmlPullParser parser = parserCreator.newPullParser();
>
> > parser.setInput(text.openStream(), null);  Do I still use an open
> > stream here?
>
> > rest of code...
>
> > Thanks in advance for the help and insoght

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[android-developers] Re: OpenGL ES for Android tutorial

[Jens]

GDC 2011 had a "better" example for OGLES2.0

https://code.google.com/p/gdc2011-android-opengl/

On 5 Apr, 18:41, J  wrote:
> Hi,
>
>   anybody can sugest a tutorial for OpenGL ES on Android?
>
>   The official documentation is not very extensive...
>
> Thanks,
> J

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[android-developers] Re: Parsing data from a calender on a website

[Jens]

You should probably include the URL of the calendar application (if
you can) if you expect any sort of useful response.

But, since you've posted a question for an online calendar that
apparently (?) loads the calendar dynamically with javascript you
could try checking if the calendar uses any AJAX-service on the HTTP
server to retrieve the calendar events (using for instance Firefox
with the Firebug plug-in).

That would typically yield a more parseable source of calendar data
(such as a REST service returning JSON or XML) than trying to pick
apart javascript.




(Checking the TOS for the service might also be a nice gesture, they
may not be too keen on 3rd parties piggy-backing on their calendar)

On 6 Apr, 17:52, Neutron_boy  wrote:
> I am fairly new to Android, but have some experience reading and
> understanding code, including Java.
> My question is: If I want to parse a URL such as a calender from a web
> page, how do I go about this?
>
> My thoughts: To pull the XML, do I use text?
> i.e.:
>
> try {
> URL text = new URL( http:// and here is where I am not sure what to
> have. The script below is the source for the calender in the XML of
> the website
>  src="9278a6f3de5f9e54f2aeeb74ac1f0a7eembedcompiled__en.js">)
>
> Do I then follow with XmlPullParserFactgory parserCreator =
> XmlPullParserFactory.newInstance();
> XmlPullParser parser = parserCreator.newPullParser();
>
> parser.setInput(text.openStream(), null);  Do I still use an open
> stream here?
>
> rest of code...
>
> Thanks in advance for the help and insoght

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[android-developers] Accessing raw (uncompressed) image data from the camera via takePicture(...) callbacks impossible

[Jens]

There is an issue concerning accessing raw (uncompressed) image data
on the Android device. The Android API provides a method "public final
void takePicture (Camera.ShutterCallback shutter,
Camera.PictureCallback raw, Camera.PictureCallback postview,
Camera.PictureCallback jpeg)" to take a picture and then receive
specific callbacks, i.e. when raw image data is available. So far so
good.

But the data buffer passed in via the RAW callback *is always null*.

I can affirm this on current Android version 2.3.3 (Nexus One and
Nexus S). Is there any setting provided to enable access to raw
(uncompressed) image data on Android?

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

[Jens]

Uh, there's a complete "sort-of-working-if-you-disregard-the-
embarrassingly-huge-glaring-holes-in-the-default-contacts-app-that-
Google-will-never-fix" example @ developer.android.com.

http://developer.android.com/resources/samples/SampleSyncAdapter/index.html

On 31 mar, 14:25, Udayan Warnekar  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: MPlayer for Android

[Jens]

You could do like all the others, write a JNI wrapper for ffmpeg and
bundle it with your application - which, depending on how you build
your version of ffmpeg would either be GPL or LGPL - and probably
be .. somewhat problematic to sell in that epic train-wreck that the
US calls a "patent system".


On 26 mar, 23:35, Ankur Avlani  wrote:
> Since Android is deployed on Linux, I am guessing there should be a
> mechanism in Android to invoke the MPlayer? or any undocumented way?
>
> Thanks and regards,
> Ankur.

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[android-developers] Re: Joins vs. Content provider

[Jens]

Did they ever fix that horrible bug in CursorJoiner that used a string
comparison on INTEGER values?

Hepp.. nope they didn't: http://code.google.com/p/android/issues/detail?id=3707

So, the advice regarding CursorJoiner is still "Avoid it like the
plague".


On 10 mar, 21:07, Kostya Vasilyev  wrote:
> And then there is:
>
> http://developer.android.com/reference/android/database/CursorJoiner
> -- Kostya

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[android-developers] Re: Contacts.NAME_RAW_CONTACT_ID cant be edited, bug or a future feature?

[Jens]

You cannot.

First, look at the code for the provider,

http://www.google.com/codesearch/p?hl=en#cbQwy62oRIQ/src/com/android/providers/contacts/ContactsProvider2.java&q=ContactsProvider2.java&l=3887

and you'll notice that it only allows updates for the "non-managed"
fields on Contacts, i.e. the fields which are not built by the
aggregation function.

However, you might be able to force an update of this particular
managed field by updating all the StructuredName rows of the
RawContacts that make up the Contact row (or just updating "the one",
however that could have adverse effects on the aggregation I suspect).

Br,


On 28 Feb, 14:04, Koby  wrote:
> No one can help on this issue? it's really important and i'v looked
> everywhere.
> Maybe i am doing something wrong.

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[android-developers] Re: Could I exec some codes after my app is installed

[Jens]

Yes. Which is bad.

Adding a BroadcastReceiver to your app for something that is spammed
often enough start your app without user interaction .. eventually.

For that extra abusive touch i recommend listening for
"ACTION_USER_PRESENT" - whenever the user wakes up his device & goes
past the key guard your app will be started/notified.

On 18 Jan, 11:03, Marcin Orlowski  wrote:
> On 18 January 2011 10:32, xeagle  wrote:
>
> > When my app is downloaded from Market and installed, could some code
> > be executed?
>
> No. Which is good.

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[android-developers] Re: How to copy contacts in phone to another account ?

[Jens]

When your SyncAdapter is initialized by the system you should get a
flag in the Bundle you receive from the SyncManager.

http://developer.android.com/reference/android/content/ContentResolver.html#SYNC_EXTRAS_INITIALIZE

So if this flag is present, copy the contacts to your account.

On 17 Jan, 04:30, Shawn_Chiu  wrote:
> Hi, all
>    I'm developing an android contacts sync application. It would
> create a new account after successfully login. But there are multiple
> accounts in an android phone, no contacts in this new account. If a
> user wants to sync with server, he/she should copy contacts into the
> funambol account in Contacts application, which make it very
> inconvenient for users.
>     So I want to load contacts immediately after a funambol account is
> created, or otherwise just sync with the originally phone account.
>    Could anybody tell me how to achieve this?
> Thanks.
> BR
> Shawn Chiu

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[android-developers] Re: Programmatically specifying a particular APN to be used in my application

[Jens]

Afaik the answer is a resounding "no". It's possible for the MMS
application to use the MMS APN but that's about as far as it goes.


On 14 Dec, 17:38, Accandme  wrote:
> I am writing a chat application (still demo stage) for an operator,
> and they want to be able to use a specific APN just for chatting (for
> charging purposes) which gives the user access to the chat server but
> no access to the internet.
>
> Is it possible to do that on android?
> Can I specify in my own application that it should use the CHAT APN
> while
> all the other applications on the phone keep using the regular default
> internet APN at the same time?

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[android-developers] Re: Import Contacts from .vcf file in Android 2.1

[Jens]

Afaik there is no "standard" way to insert contacts from a vcf file
into the contacts provider. The entire package that deals with vCards,
android.pim.vcard is hidden in the SDK and not available unless you're
a big fan of abusing Java Reflection - in short, you should lift the
parser from the android source tree and package it in your app.

If you want to browse the code it uses for serializing and parsing
vCards (both 2.1 and 3.0) it's available here.
http://www.google.com/codesearch/p?hl=en#uX1GffpyOZk/core/java/android/pim/vcard/


On 26 Nov, 06:11, Prateek Jain  wrote:
> Hi All,
>
> I am able to retrieve all contacts from android in .vcf file using
> following code.
>
> ContentResolver cr = getContentResolver();
>     Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI,null,
> null, null, null);
> String lookupKey =
> cur.getString(cur.getColumnIndex(ContactsContract.Contacts.LOOKUP_KEY));
>                         Uri uri =
> Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_VCARD_URI,
> lookupKey);
>                         System.out.println("The value is " +
> cr.getType(uri));
>                         AssetFileDescriptor fd =
> this.getContentResolver().openAssetFileDescriptor(uri, "r");
>                         FileInputStream fis = fd.createInputStream();
>
> I don't know how to use this .vcf file to import all these contacts
> using code. The .vcf file contains all the details of all contacts
> including photos etc.
>
> Cheers, Prateek

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[android-developers] Re: SAX- \n \r not recognized

[Jens]

A single LF is the expected output for CR LF sequences.

Normalization is part of the deal with XML.

http://www.w3.org/TR/REC-xml/#sec-line-ends

In short: Find a non-conformant XML parser or encode your content.

On 23 Nov, 06:04, Android Humanoid  wrote:
> SAXParserFactory spf = SAXParserFactory.newInstance();
>                 SAXParser sp = spf.newSAXParser();
>
>                 XMLReader xr = sp.getXMLReader();
>                 SearchHandler sh=new SearchHandler();
>                 xr.setContentHandler(sh);
>                 String query="xml query";
>
>                 Log.e("Query:Disaplay mail", query);
>                 URL url=new URL(query);
>                 InputSource is=new InputSource();
>                 is.setEncoding("UTF-8");
>                 is.setByteStream(url.openStream());
>                 xr.parse(is);
>
> This is the parser am using... SearchHandler extends DefaultHandler.
> My problem is in XML file.. i have a node called "emial" under that
> "content" is the attribute, in that content I'll get some text that
> text is have \n and \r.
>
> Does my SearchHandler recognize the \n or \r symbol or should I use
> any different parser.
> On Nov 23, 9:31 am, Frank Weiss  wrote:
>
> > Please provide more details.
>
> > 1. Since you mention "symbols", are you using a push or pull SAX parser?
> > 2. Newlines between *opening* XML elements are typically ignored, not by the
> > parser itself, but by the handler.
> > 3. Newlines in a text node ("characters") are significant. Is this the case
> > you are talking about?
> > 4. Newlines in CDATA nodes should also be signifacnt. Is this the case you
> > are talking about?
> > 5. Newlines and carriage returns, 0x0A, 0x0D, are identical whether encode
> > in Latin-1 or UTF-8. I doubt this is the issue.
>
> > Can you give a concrete example, please.

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[android-developers] Re: 2.1 vs 2.2 ZipInputStream

[Jens]

Tim Brays blog entry on multithreading mentions this error and how to
fix it:

http://android-developers.blogspot.com/2010/07/multithreading-for-performance.html



On 16 Okt, 00:34, Adam Hammer  wrote:
> I have some code that takes a zip in /assets/raw opens it and reads
> Bitmaps out of it.
>
> Works great in 2.2, but in 2.1 BitmapFactory.decode() has an error
> reading the inputstream, in logcat I have
>
> D/skia    ( 1037): --- decoder->decode returned false
>
> I should also note that my APP is opengl based, not skia based, so
> whatever is happening is likely happening inside Bitmap.

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[android-developers] Re: Can Android 2.X connect to 3G and Wifi data networks simultaneously?

[Jens]

Afaik - Android 2.1 has a bug related to hipri data, it *only* works
for Android 2.2 and later. That said, your probably better off asking
the user to turn of WiFi before using your app - or restrict it to sdk
level 8 and higher.

On 11 Okt, 17:38, Steven PERRAUDIN  wrote:
> On 31 août, 13:36, Jens  wrote:> With Android 2.2 
> you can route data over the 3G connection explicitly
> > while still using WiFi. The feature exists in Android 2.1 also but is
> > *broken* as the high-priority 3G data connection is torn down
> > incorrectly almost directly.
>
> How do you get 3G and WiFi connected at the same time ?
> So is this possible in Android 2.1 to route either to 3G or WiFi ?
> If both interfaces are connected to a separate network, a simple
> change of routing table would allow to choose the interface to send/
> receive data no ? Or is there a simpler way to achieve this.

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[android-developers] Re: writing Events into Google Calendar in Android failed

[Jens]

You're adding an event that's not linked to a row in the calendars
table for one.

Typically you need to set the value of "calendar_id" to something.
This "something" better be a valid _id value from the calendars table
or your app will just be filling the provider with crap.

If you're going to be messing around in undocumented providers you
should probably start by looking at the provider code itself:

http://android.git.kernel.org/?p=platform/packages/providers/CalendarProvider.git;a=tree;f=src/com/android/providers/calendar;h=240974b9e76a1c95fb7a20069e0848f913abbef7;hb=25b0f0ee070a5fff18cfcaffa86cb1607941c8a5

Also.. the provider is a bit peculiar on all-day events.. plz make
sure you're pushing them in in UTC-time with the event time zone set
to UTC also. Look at the implementation in the Calendar app itself:

http://android.git.kernel.org/?p=platform/packages/apps/Calendar.git;a=tree;f=src/com/android/calendar;h=e0c3f3cc9249fb9b0cf278a8338e362fdf3e9f4a;hb=14e77164bddf4d29acaca5bb2ff116a697bf9650

--

(or you could just do it with GDATA as M.Murphy suggests and push your
messages via HTTP up to Google which should sync it back to the device
sooner or later).


On 8 Okt, 12:40, Kapuddi  wrote:
> Hello, All:
>
> when I insert one new Calendar Event into Google calendar from my app,
> the log message was given:
> 
> 10-05 00:30:44.171: ERROR/DatabaseUtils(8479): Error inserting
> transparency=0 dtstart=128589120 title=TestCalendar _sync_dirty=1
> dtend=128589120 visibility=0 allDay=1 lastDate=1285950628697
> hasAlarm=0 eventStatus=1 into table  Events
> 10-05 00:30:44.171: ERROR/DatabaseUtils(8479):
> android.database.sqlite.SQLiteConstraintException: error code 19:
> constraint failed
> 10-05 00:30:44.171: ERROR/DatabaseUtils(8479):     at
> android.database.sqlite.SQLiteStatement.native_execute(Native Method)
> 
>
> would you please tell me how to solve it?
>
> Best Regards,
>
> Kapuddi
>
> 
> Next is my sample code:
> // Platform: android 2.2 froyo
>
>    private static final String calendarcontentStr =
> "content://com.android.calendar/events";
>
>    ContentValues event = new ContentValues();
>
>    //event.put("title", mAct.getString(R.string.read) + ": " + title);
>    event.put("title", "TestCalendar");
>
>    long startTime = startC.getTimeInMillis();
>    long endTime = endC.getTimeInMillis();
>
>    event.put("dtstart", startTime);
>    event.put("dtend", endTime);
>    //event.put("allDay", 1);
>    event.put("eventStatus", 1);
>    event.put("visibility", 0);
>    event.put("transparency", 0);
>    event.put("hasAlarm", 0);
>
>    Uri eventsUri = Uri.parse(calendarcontentStr);
>    Uri uri = mAct.getContentResolver().insert(eventsUri, event);

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[android-developers] Re: Using 3G and WLAN simultaneously

[Jens]

Asked and answered.

http://groups.google.com/group/android-developers/browse_thread/thread/4a4d8fbc87d20c/ec0177df1fa1534c?lnk=gst&q=We+have+an+application+where+we%27d+like+to+use+the+Wifi+connection+on+a+#ec0177df1fa1534c

Only works on 2.2+ - and the current solution is somewhat hackish..

On 1 Okt, 19:19, Kristian  wrote:
> Hello,
>
> I am working on porting an application which requires at least two
> network interfaces to be available at the same time, for example WLAN
> and 3G. However, I have not been able to figure out how to use
> multiple interfaces simultaneously on Android, the OS seems to remove
> or at least disable one of the interfaces when the other is switched
> on. I have looked through the official API and any relevant examples
> and documentation, but have not figured out how to force the system
> not to switch off one of the interfaces. The closest I got was the
> tethering hotspot source code, as they do something similar to what I
> want to do, but I was not able to fully understand their code.
>
> My question is therefore, does anyone know how to enable both the WLAN
> and the 3G interface of an Android-phone? It does not matter if it is
> through code, configuring the operating system or something else. The
> phones I have tested with are the Galaxy S and Nexus One, and the
> application is currently written in native code (however, it can
> easily be ported to Java if that is neccessary).
>
> Thanks in advance for any help.
>
> -Kristian

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[android-developers] Re: How can I query the sms by conversation?

[Jens]

The URI you're looking for is

  content://mms-sms/conversations?simple=true

and the sort order is "date DESC"

And as usual, with undocumented APIs from Google - they may change in
the future / differ between handsets etc. - i.e. your app may stop
working and your users start whining.

If you're dead set on doing this I'd suggest adding a heap of error
handling and also test on multiple devices from different vendors.



On 28 Sep, 10:30, feeling3_4  wrote:
> Hi All,
>
> how can I query the latest sms of every conversation. just like native
> sms application in the android phone.
>
> everytime we start the sms application, it displays the conversations
> sorted by date. how can I achieve this?
>
> we can query all the sms, but I can't figure out how to query the sms
> by threads.
>
> thanks a lot

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[android-developers] Re: Synchronization period

[Jens]

If you are using 2.2 / api level 8 you could use

http://developer.android.com/reference/android/content/ContentResolver.html#addPeriodicSync(android.accounts.Account,%20java.lang.String,%20android.os.Bundle,%20long)

For 2.1 you're going to have to use the AlarmManager to schedule your
synchronizations.

On 24 Sep, 13:50, Roman Mazur  wrote:
> What is the method to define a sync period for some account?
> ContentResolver allows to set automatic sync flag only. But what is
> period?
> Have I missed something?
> Or have I to schedule sync requests myself using the AlarmManager?
>
> Thanks.

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[android-developers] Bluetooth scanning: Issue with HTC Desire -> not scanning

[Jens]

Hi: I'm developing an application which does scans for nearby
bluetooth devices which are in discoverable mode. On the Google Nexus
One device, the device scanning is working perfectly. But on the HTC
Desire, "ACTION_DISCOVERY_FINISHED" is called once and does not call
the action "BluetoothDevice.ACTION_FOUND". Any other attempts to start
another scan by calling "startDiscovery()" on BluetoothAdapter class
are ignored. Under some circumstances it works on the HTC Desire for a
few (around 10) bluetooth scanning attempts.

Has HTC introduced a bug on their custom firmware?



The simplest class demonstrating the issue is as follows:

===
public class BluetoothTest extends Activity {

private BluetoothAdapter mBtAdapter;

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

mBtAdapter = BluetoothAdapter.getDefaultAdapter();

IntentFilter filter = new
IntentFilter(BluetoothDevice.ACTION_FOUND);
this.registerReceiver(mReceiver, filter);
IntentFilter filter2 = new
IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
this.registerReceiver(mReceiver, filter2);

mBtAdapter.startDiscovery();
}

private final BroadcastReceiver mReceiver = new
BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();

// When discovery finds a device
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
Log.d("DEBUG", "BT Device found");
}

else if
(BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {
Log.d("DEBUG","Entered ACTION_DISCOVERY_FINISHED ");
mBtAdapter.startDiscovery();
}

}
};
}
==

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[android-developers] Re: Adding Contacts in Custom account 2.2

[Jens]

There's an old issue filed for this bug:

http://code.google.com/p/android/issues/detail?id=5988

You can either supply your own contact editor and supply activities
for editing and adding contacts to your account or wait for a fix from
Google. The first option results in a very shabby user experience and
the second option is not going to happen anytime soon.

On 13 Sep, 12:06, mikedroid  wrote:
> I created a custom account that will create my own contacts but using
> the ContactsContract that is new in the sdk, when i already provided
> values and seems like called every method and constant to be used, the
> only thing that shows in the EditContactActivity and ofcourse having
> my own account for it to be added. The problem is it only shows First
> Name and Last Name fields... no numbers and emails?

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[android-developers] Re: Custom Account / Sync adapter: inability to edit contacts?

[Jens]

You will most likely not see a fix for either 2.1 or 2.2 for this
issue. Keep your fingers crossed for 3.0?

On 15 Sep, 09:59, BoD  wrote:
> Thank you so much, that confirms what I was afraid of.
> Starred it; hope this will be taken care of soon. Until then, making a
> custom account / sync adapter is not really an option. Like other
> commenters in this issue, unfortunately we only realize that fact
> after doing most of the job :(
>
> BoD
>
> On Sep 15, 1:19 am, joebowbeer  wrote:
>
> > Seehttp://code.google.com/p/android/issues/detail?id=5988
>
> > On Sep 14, 3:09 am, BoD  wrote:
>
> > > So apparently the answer is no... :(
>
> > > BoD
>
> > > On Sep 14, 10:37 am, Kostya Vasilyev  wrote:
>
> > > > I believe there was some info on this in the old thread.
>
> > > > --
> > > > Kostya Vasilyev --http://kmansoft.wordpress.com
>
> > > > 14.09.2010 12:21 пользователь "BoD"  написал:
>
> > > > > custom contacts are assumed to be sufficiently different from standard
> > > > ones,
> > > > > and so the built-in...
>
> > > > How disappointing.
> > > > Is there a mechanism to inject your own contact editing Activity into
> > > > the Contact app?
>
> > > > BoD
>
> > > > PS: I did use search thank you very much - the only related threads I
> > > > found were unanswered as I mentioned, maybe you could point me to the
> > > > relevant thread?
>
> > > > On Sep 14, 10:01 am, Kostya Vasilyev  wrote:
>
> > > > > This came up on this list before...
> > > > > 14.09.2010 11:48 пользователь "BoD"  написал:
>
> > > > > Anybody please?
>
> > > > > I saw this question was asked several times in the past but never
> > > > > answered...
>
> > > > --
> > > > You received this message because you are subscribed to the Google
> > > > Groups "Android Developers" g...

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[android-developers] Re: Fetch recurrent events

[Jens]

That would be the "PITA"-part wouldn't it. And he's not using any
undocumented Android code, he's accessing a provider through the
standard API:s, which is all well and manageable as long as you
observe basic hygiene and check that the provider is actually
installed and providing the columns you expect.

So dial down the snark, you're currently at a strong 11, we need you
to be somewhere around a solid 7.

On 9 Sep, 08:40, Indicator Veritatis  wrote:
> Absolutely right. And your 'snarkiness' is fully justified. Nobody
> should be using a private API that Google has advised against using.
> Why, it is extremely rare that one should use a private API at all,
> since the basic policy of Google on undocumented Android code is
> "subject to change without notice". It is just bad practice, period.
>
> We really do not need such bad software engineering practices
> poisoning the Android ecosystem and reputation.
>
> On Sep 8, 8:46 am, TreKing  wrote:
>
> > On Wed, Sep 8, 2010 at 7:12 AM, Jens  wrote:
> > > Or, if one doesn't reply with a snarky one-liner:
>
> > I think you mean "Or, if you insist on using private APIs which Google
> > specifically advises against and want to subject yourself to dealing with
> > your app breaking on a myriad of platform versions and phone models with
> > each new release."
>
> > --- 
> > --
> > TreKing <http://sites.google.com/site/rezmobileapps/treking> - Chicago
> > transit tracking app for Android-powered devices

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[android-developers] Re: Fetch recurrent events

[Jens]

Or, if one doesn't reply with a snarky one-liner:

For Android 2.1 and earlier you could query "content://calendar/
events" with the following selection "rrule IS NOT NULL"
For Android 2.2 the authority of the calendar provider was changed, so
you query "content://com.android.calendar/events" instead.


You should typically refer to:
https://android.git.kernel.org/?p=platform/packages/providers/CalendarProvider.git;a=summary

As you're using an undocumented provider through the standard API:s
you need to be aware that the implementation may vary between vendors,
versions etc - which may or may not be a royal PITA.

On 7 Sep, 08:12, rinyogi  wrote:
> Hi
> I was wondering how does one fetch recurring events from native
> calendar?

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[android-developers] Re: Can Android 2.X connect to 3G and Wifi data networks simultaneously?

[Jens]

Yup, i usually don't commit the exact name of hidden constants to
memory, the value of that constant is however defined as "enableHIPRI"
- and should produce the desired effect of enabling explicit
connection routing over 3G.


On 31 Aug, 14:11, Mark Murphy  wrote:
> On Tue, Aug 31, 2010 at 7:36 AM, Jens  wrote:
> > Look into the ConnectivtyManager#startUsingNetworkFeature(TYPE_MOBILE,
> > ENABLE_HIPRI)
>
> There is no ENABLE_HIPRI constant in the Android SDK. There is a
> FEATURE_ENABLE_HIPRI
> constant on an internal Phone class, but that is not part of the
> Android SDK either.
>
> --
> Mark Murphy (a Commons 
> Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy
>
> Android Development Wiki:http://wiki.andmob.org

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[android-developers] Re: Can Android 2.X connect to 3G and Wifi data networks simultaneously?

[Jens]

With Android 2.2 you can route data over the 3G connection explicitly
while still using WiFi. The feature exists in Android 2.1 also but is
*broken* as the high-priority 3G data connection is torn down
incorrectly almost directly.

Look into the ConnectivtyManager#startUsingNetworkFeature(TYPE_MOBILE,
ENABLE_HIPRI) combined with a BroadcastReceiver for the
ConnectivityManager.CONNECTIVITY_ACTION. After the HIPRI connection is
made you need to explicitly route the data using
ConnectivityManager#requestRouteToHost(TYPE_MOBILE_HIPRI, int).

On 13 Juli, 20:07, Mark Murphy  wrote:
> On Tue, Jul 13, 2010 at 2:01 PM, RickB  wrote:
> > We have an application where we'd like to use the Wifi connection on a
> > local network (intranet) with no Internet connectivity, and use the 3G
> > connection simultaneously as the data connection to the internet.
>
> Like the WiFi hotspot built into Android 2.2.
>
> > To summarize:
>
> > - We need to connect to two distinct networks at the same time
> > - We need data traffic to be properly routed to the appropriate
> > network based on its IP address
> > - We need both radios (Wifi and 3G) on and active
>
> > This can easily be done on the iPhone, but not sure if it can be done
> > on the Android.  Any info/insights welcomed.
>
> AFAIK, at the SDK level, Android only supports one active connection
> at a time. Custom firmware can clearly arrange for multi-radio
> support, as the WiFi hotspot in 2.2 demonstrates.
>
> --
> Mark Murphy (a Commons 
> Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy
>
> Android 2.2 Programming Books:http://commonsware.com/books

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[android-developers] Bluetooth signal strength on Google Nexus One running Android 2.2 (FroYo)

[Jens]

Hi!

Is there a possibility to get the bluetooth signal strength to not
connected bluetooth devices?

Regards

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[android-developers] Re: Permanent socket connection drains battery

[Jens]

So you're holding a wake lock that keeps the network and CPU on at all
times? Which would prevent the device from sleeping? Yeah, that's a
pretty sure-fire way of draining the battery.

On 15 Juli, 15:41, Namrata  wrote:
> > Do you really need to have a socket open at all times?
>
> yes, my application is based on push technique for which I always need
> to keep it open
>
> >only keep the socket open while the user is actually using the application.
>
> yup I am doing it. Actually the fuctionality of app includes
> minimization of app and still listening to server push.
>
> On Jul 15, 6:24 pm, Miguel Morales  wrote:
>
> > Do you really need to have a socket open at all times?  Why not
> > periodically check the server using an Alarm, or only keep the socket
> > open while the user is actually using the application.  Also, any loop
> > will drain your battery, you might try sleeping at the end of it.
>
> > On Thu, Jul 15, 2010 at 5:39 AM, Namrata  wrote:
> > > Thanks Mark..
>
> > > On Jul 15, 5:06 pm, Mark Murphy  wrote:
> > >> On Thu, Jul 15, 2010 at 7:56 AM, Namrata  
> > >> wrote:
> > >> > any answer?..This is blocking issue for me as it drains batter in
> > >> > couple of hours.
>
> > >> You may wish to watch the C2DM presentation from Google I|O 2010, as
> > >> they provide a few hints on how they try to minimize battery usage.
>
> > >> --
> > >> Mark Murphy (a Commons 
> > >> Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy
>
> > >> _Android Programming Tutorials_ Version 2.9 Available!
>
> > > --
> > > 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
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> > >http://groups.google.com/group/android-developers?hl=en
>
> > --http://developingthedream.blogspot.com/,http://diastrofunk.com,http:/..., 
> > ~Isaiah 55:8-9

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[android-developers] Sections in ListView

[Jens]

What is the preferred way to sectionize a ListView by declaring a
header before each section?

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[android-developers] Record audio separately from both microphones on Google Nexus One

[Jens]

Hi: The Google Nexus One uses noise cancellation and has therefore two
microphones. My question is, if it is possible to record audio
individually for both microphones?

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[android-developers] Re: Setting and testing state of WiFi Tether hotspot setting in 2.2

[Jens]

I'm interested in this too. Is there already any experience with this?

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[android-developers] Re: Picking up contacts: difference in behaviour between HTC and NexusOne - SDK 2.1-update1

[Jens Finkhaeuser]

Hi!

Yeah, it helps, thanks. The Android docs contain a more detailed
recipe for maintaining support for older Android versions too (http://
developer.android.com/resources/articles/contacts.html). What gets me
is that on my stock 2.1-update1 (N1) everything works fine with the
"deprecated" URI, but on my user's Hero (HTC's version of 2.1-update1)
it doesn't. Seems that HTC misread "deprecated" as "unsupported". Ugh.

Ah, well, if you solved your problem that way, I can do too. Thanks!

Jens

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[android-developers] Re: Picking up contacts: difference in behaviour between HTC and NexusOne - SDK 2.1-update1

[Jens Finkhaeuser]

Hi!

Any news on this? I'm seeing the same - rather, one of my users is
seeing the same on their Hero, and on my N1 everything works.

Thanks,
Jens

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[android-developers] Recognize clicks on screen in background service

[Jens]

Hi: I have a background service and want to listen to clicks on the
screen by the user. Is there any standard procedure or experience in
doing this?

-Jens

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[android-developers] GPS fix status detection

[Jens MF]

Hi: Is there a standard solution to determine if the GPS is having a
fix?

Actually I tried to get the status out of the callback method "public
void onStatusChanged(String provider, int status, Bundle extras)
{ ... }". But it doesn't get called and the API is quite restraining
on exactly when it's called...

At least the status bar icon seems to know when it has a fix and when
not ...

-Jens

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[android-developers] Re: Unable to edit the SyncAdapter Contacts

[Jens]

There's a bug report about this intentional misdesign already:

http://code.google.com/p/android/issues/detail?id=5988

On 5 Apr, 18:03, Jegadeesan M  wrote:
> Hi All ,
>
> Actually i tried the SampleSyncAdapter (Sample Sync Adapter examples),
> its working fine for me. but i am not able to edit/delete the synced
> contacts.  Is this possible to edit those contacts ? please let me
> know.
>
> Thanks
> Jegadeesan M

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[android-developers] Re: Contacts FAQ?

[Jens]

Bug or intentional?

On 3 mar, 20:31, HCH  wrote:
> From my reading of the sources (2.1) a custom account contact is not
> editable on the phone outside of the name fields.
>
> The contact editor does not read the relevant information out of the
> contacts.xml.  It only reads enough to support what you'd see in the
> Facebook type account.
>
> The source fix would likely be trivial:  just use the fallback source
> mapping as the baseline.
>
> On Feb 26, 12:49 am, sazilla  wrote:
>
> > Hi Berto,
>
> > do you managed to render the contacts edit fields from a custom
> > account using the native contacts app? or for contacts view only?
>
> > thanks
> > Carlo
>
> > On 25 Gen, 17:25, Berto  wrote:
>
> > > Just an update for those of you still lost on adding custom accounts,
> > > sync adapters, etc.  I found a great article here:
>
> > >http://www.c99.org/2010/01/23/writing-an-android-sync-provider-part-1...
>
> > > Part 2 was the part I needed (how to render the information you synced
> > > to a contact).
>
> > > HTH,
>
> > > Berto
>
> > > On Jan 22, 4:57 pm, Berto  wrote:
>
> > > > So, it turns out that anything you put into your own ExternalSource
> > > > will never get parsed and therefore (theoretically) never show up.  Or
> > > > am I doing something wrong?  The code looks like it will parse only
> > > > the information in ContactsDataKind and not the EditField node from
> > > > the following:
>
> > > > http://schemas.android.com/apk/res/
> > > > android">
> > > >      > > >         android:mimeType="com.example.mimetype"
> > > >         android:icon="@drawable/icon"
> > > >         android:summaryColumn="data2"
> > > >         android:detailColumn="data3">
> > > >         
> > > >     
> > > > 
>
> > > > Essentially, I have adding an account and the sync adapter working.
> > > > But when I try to create a new contact through the contacts app, I can
> > > > never see any of the fields I added in the XML structure defined by
> > > > " > > > android:resource="@xml/contacts" />".  Has anyone figured out an
> > > > answer to this problem yet?  I've seen a few posts, but nothing with a
> > > > solid answer.
>
> > > > On Jan 12, 4:45 am, Jens  wrote:
>
> > > > > You could check the Email app - its the current location of the
> > > > > Exchange ActiveSync SyncAdapter implementation.
>
> > > > >http://android.git.kernel.org/?p=platform/packages/apps/Email.git;a=s...
>
> > > > > Note that this adapter isn't the complete story as any contacts you
> > > > > create with your custom accounts will be next to useless without
> > > > > looking into the wonky ExternalSource.java integration required for
> > > > > custom adapters (unless your happy with contacts that only contains a
> > > > > name and photo).
>
> > > > >http://android.git.kernel.org/?p=platform/packages/apps/Contacts.git;...
>
> > > > > Sources.java contains the "super-special-let's-not-use-our-own-API:s-
> > > > > because-that's-hard-work-and-might-require-us-to-actually-document-
> > > > > anything-or-heaven-forbid-test-it" if-statement that determines the
> > > > > layout of your contacts in the Contacts app - and gives super-special
> > > > > treatment to accounts with the type "com.google" or
> > > > > "com.android.exchange".
>
> > > > > ExternalSource.java contains the sparse and incomplete API
> > > > > documentation that you're going to have to use.
>
> > > > > On 9 Jan, 22:16, joebowbeer  wrote:
>
> > > > > > On Dec 10 2009, 7:03 am, ydario  wrote:
>
> > > > > > > I tried addingcontactscode to this project
>
> > > > > > >http://code.google.com/p/androidaccounts/
>
> > > > > > The referenced project no longer exists. Are there any similar
> > > > > > projects to check out? If not, could someone who has a handle on 
> > > > > > this
> > > > > > start anewproject?

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[android-developers] Re: HTML parsing with JAVA

[Jens]

Tagsoup. You can add the lib to your project or (ab)use reflection to
obtain it from your platform - Google is using themselves.

http://home.ccil.org/~cowan/XML/tagsoup/

On 22 Feb, 06:54, Alisha  wrote:
> Hi All,
>
> I have to parse a html file using java. I have gone through a lot of
> html parsers, but seem to understand none of them. So please help me
> out with the type of parser that should be used for an android app and
> how to parse a  html file.

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[android-developers] Re: how to deal complex sql in ContentProvider

[Jens]

Sure, but in almost all cases it is backed by SQLite - so
intentionally gimping the API that's supposed to be used for
exchanging data across applications is monumentally stupid - since
JDBC is not an alternative on Android.


Designing for the lowest common denominator != good.

> ContentProvider is not a database abstraction -- it's a content store
> abstraction. Not all ContentProviders will be backed up by a SQLite
> database or anything else that interprets SQL. Hence, it is not surprising
> to me that ContentProvider does not support arbitrary SQL statements.
>
> Since a ContentProvider -- particularly one needing your proposed UPDATE
> statement -- is only needed for inter-process content sharing, you might
> consider switching to a remote service (using AIDL) instead.
>
> --
> Mark Murphy (a Commons Guy)http://commonsware.com
> Android App Developer Books:http://commonsware.com/books.html

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[android-developers] Re: Forcibly using 3G or CDMA network even though wi-fi is available.

[Jens]

Uh yeah, that's why they added that particular crazed hack - an
undocumented call to #startUsingNetworkFeature(int, String).

On 3 Feb, 09:31, Anonymous Anonymous 
wrote:
> --
>
> MMS cannot be sent over wi-fi.Carriers network is mandatory to send/recv.
> The MMSC need to identify from/to the message coming going and it wont be
> possible while using wi-fi.
> So its required to switch to 3g or CDMA even if wi-fi is available.
>
> 2010/2/3 Dongjoon Lee 
>
> > The application needs to get some information from operator's server.
> > And operator want us to make use operator's network, not wifi, even
> > though wifi is available.
>
> > It's very difficult to find solution. May I need to search alternative
> > way.
>
> > Anyway, thanks for your advice.
>
> > Best regards,
> > Dongjoon.
>
> > On 1월15일, 오후7시17분, Jens  wrote:
> > > For the same reason you added the "feature" that allows the MMS
> > > application to switch to a specific APN even when WiFi is
> > > available. lots of mobile apps require you to go through a
> > > specific APN - for billing purposes amongst other things.
>
> > > Dongjoon: You could check if the same crazed hack that allows the MMS
> > > application to work can be used by you?
>
> > > Br
> > > Jens
>
> > > On 14 Jan, 19:07, Dianne Hackborn  wrote:
>
> > > > Sorry, I don't believe you can.  Why do you want to do this?
>
> > > > On Thu, Jan 14, 2010 at 12:39 AM, Dongjoon Lee 
> > wrote:
> > > > > Hello.
>
> > > > > My question is, as you can see the title, can i use3gnetwork even
> > > > > though wi-fi is available?
> > > > > i heard wi-fi priority is higher than3gor cdma. can i change that
> > > > > priority in specific application?
> > > > > this is one of requirement of the project. if anybody has an answer,
> > > > > plz help 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-developers@googlegroups.com
> > > > > To unsubscribe from this group, send email to
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> > 
>
> > > > > 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.- 원본 텍스트 숨기기 -
>
> > > - 원본 텍스트 보기 -
>
> > --
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[android-developers] Re: Adding contacts to a custom account

[Jens]

The problem lies within the broken parts of the Contacts app, so a
proper implementation of custom contacts sync is effectively dead for
all devices running 2.0.1 (and probably 2.1).

On 21 Jan, 00:05, sazilla  wrote:
> did anyone fix this problem? any suggestion?
>
> does it mean that there's no application providing contacts sync?
>
> On Dec 29 2009, 3:14 pm, sazilla  wrote:
>
> > Hi Vadim,
>
> > Actually for what I've understood thecustommime type can be used to
> > specify how to render thecustomfields when you view the contact not
> > while you edit it. I've found a bug in the Contacts application
> > (around line 
> > 178):http://android.git.kernel.org/?p=platform/packages/apps/Contacts.git;...
>
> > The ExternalSource component should be able to read the xml file you
> > mentioned above and render it in the contacts editing screen, but...
> > it doesn't.
>
> > The Facebook application, for example, defines acustomfiled (the FB
> > profile) in the contacts.xml file, and it i rendered correctly when
> > you view a FB contact, but the FBaccountin Android is a read onlyaccount, 
> > it means that in any case you cannot create/edit contacts
> > from android.
>
> > Up to now I found only a workaroun, filtering the intent launched
> > everytime a contact must be created/edited and show acustomcontacts
> > edit screen, for our contactsaccount, or forward the request to the
> > default contacts app if the contact belongs to a differentaccount.
>
> > Let me know if you've found any other workaround.
>
> > Thank you
>
> > Carlo
>
> > On Dec 23, 3:16 pm, Vadim Vohmjanin  wrote:
>
> > > I have found something...
>
> > > For thatcustomData row to appear in the Contacts app, you'll need to
> > > associate yourcustomMIME-type with XML that describes how to render
> > > the UI.  The only current way of doing this is to define a sync
> > > adapter  and add  definition inside, something
> > > like this:
>
> > >  > >  android:resource="@xml/contacts" />
>
> > > So you have 2 metas there, one is for sync adapter.
>
> > > Then define the contacts XML inside your app ./res/xml/contacts.xml:
>
> > > --snip--
> > >  http://schemas.android.com/apk/res/
> > > android";>
> > >       > >          android:mimeType="vnd.com.example.voip.cursor.item/phone_v2"
> > >          android:icon="@drawable/icon"
> > >          android:summaryColumn="data2"
> > >          android:detailColumn="data3" />
> > >  
> > > --snip--
>
> > > I have tried this, but i didn't get it working. It sure effects in
> > > some way. But i don't get desirable result.
>
> > > Any help pls?
>
> > > On Dec 18, 4:32 pm, Vadim Vohmjanin  wrote:
>
> > > > I faced the same problem.
>
> > > > I'm doing the research now. If you have found how to do it, please
> > > > provide this info. I'd be very greatfull.
>
> > > > I also wanted to know, what exactly way do you createcustomaccount?
> > > > As i understoodaccountcreation currently *requires* a developer to
> > > > implement a
> > > > service that extends AbstractThreadedSyncAdapter and publishes the
> > > > correct intent in
> > > > its manifest.
> > > > When this is not the case, the "Accounts & Sync" settings does not
> > > > handle the case
> > > > where this is not defined and causes the NPE in the core process that
> > > > causes the
> > > > reboot.
> > > > It is recommended that this defect be patch and/or the documentation
> > > > updated to include the
> > > > proper procedures and requirements for creation of anaccountin
> > > > Android.
>
> > > > Alsoaccountcreation requires of the authenticator to be implemented
> > > > for theaccounttype.
> > > > In order to be an authenticator developer must extend
> > > > AbstractAccountAuthenticator class, provider implementations for the
> > > > abstract methods and write a service that returns implemented
> > > > AccountAuthenticator.
>
> > > > Or there is more simple way to create acustomaccountfor Contacts?
>
> > > > On Dec 15, 4:52 pm, sazilla  wrote:
>
> > > > > Hi everyone,
>
> > > > > I encountered an issue while configuring my ownaccountfor android
> > > > > contacts sync. When the user choses to add a new contact to thecustom
> > > > >account, only the name fields and the photo are showed. This behaviour
> > > > > can be found in the ExternalSource.java android source file.
>
> > > > > My question is, if I don't want to addcustomcontacts fields for my
> > > > >account, how can I configure theaccountto show all the standard
> > > > > fields in the contacts application in the same way the googleaccount
> > > > > does?
>
> > > > > Thank you
>
> > > > > Carlo

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[android-developers] Re: Forcibly using 3G or CDMA network even though wi-fi is available.

[Jens]

For the same reason you added the "feature" that allows the MMS
application to switch to a specific APN even when WiFi is
available. lots of mobile apps require you to go through a
specific APN - for billing purposes amongst other things.

Dongjoon: You could check if the same crazed hack that allows the MMS
application to work can be used by you?

Br
Jens

On 14 Jan, 19:07, Dianne Hackborn  wrote:
> Sorry, I don't believe you can.  Why do you want to do this?
>
>
>
> On Thu, Jan 14, 2010 at 12:39 AM, Dongjoon Lee  wrote:
> > Hello.
>
> > My question is, as you can see the title, can i use 3g network even
> > though wi-fi is available?
> > i heard wi-fi priority is higher than 3g or cdma. can i change that
> > priority in specific application?
> > this is one of requirement of the project. if anybody has an answer,
> > plz help me.
>
> > thanks in advance.
>
> > --
> > You received this message because you are subscribed to the Google
> > Groups "Android Developers" group.
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>
> --
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> 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: Contacts FAQ?

[Jens]

Developing in the SDK you can use the account type "com.google" - this
will trick the Contacts app into displaying all the fields without
trying to use the broken contact field format Brian hinted at earlier
in this thread. This will of course probably not work in an actual
device where the "com.google" authenticator is already added.

br
Jens

On 15 Dec 2009, 12:45, sazilla  wrote:
> Hi everyone,
>
> I encountered an issue while configuring my own account for 
> androidcontactssync. When the user choses to add a new contact to the custom
> account, only the name fields and the photo are showed. This behaviour
> can be found in the ExternalSource.java android source file.
>
> My question is, if I don't want to add customcontactsfields for my
> account, how can I configure the account to show all the standard
> fields in thecontactsapplication in the same way the google account
> does?
>
> Thank you
>
> Carlo
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[android-developers] Re: Contacts FAQ?

[Jens]

You could check the Email app - its the current location of the
Exchange ActiveSync SyncAdapter implementation.

http://android.git.kernel.org/?p=platform/packages/apps/Email.git;a=summary

Note that this adapter isn't the complete story as any contacts you
create with your custom accounts will be next to useless without
looking into the wonky ExternalSource.java integration required for
custom adapters (unless your happy with contacts that only contains a
name and photo).

http://android.git.kernel.org/?p=platform/packages/apps/Contacts.git;a=tree;f=src/com/android/contacts/model;h=e58985879d5b88e3374b3fad847da3786e47ee94;hb=08d3445a85a65c56c0f09d24f871ffbd3b93187f

Sources.java contains the "super-special-let's-not-use-our-own-API:s-
because-that's-hard-work-and-might-require-us-to-actually-document-
anything-or-heaven-forbid-test-it" if-statement that determines the
layout of your contacts in the Contacts app - and gives super-special
treatment to accounts with the type "com.google" or
"com.android.exchange".

ExternalSource.java contains the sparse and incomplete API
documentation that you're going to have to use.



On 9 Jan, 22:16, joebowbeer  wrote:
> On Dec 10 2009, 7:03 am, ydario  wrote:
>
> > I tried addingcontactscode to this project
>
> >http://code.google.com/p/androidaccounts/
>
> The referenced project no longer exists. Are there any similar
> projects to check out? If not, could someone who has a handle on this
> start a new project?
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[android-developers] Re: Extending contacts

[Jens]

This needs to be addressed... The whole ContactsContract API is
starting to look like a perfect lesson in how not to publish an API.
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[android-developers] Re: Playing a audio stream not working using MediaPlayer

[Jens-Christian Larsen]

Thank you Klaus for the response.
What you say is also what I have come to understand.
I think I will try to download a local copy of the streamed content
and play that instead.
In any case the MediaPlayer class seem not to be working correctly in
most streaming audio cases.
I guess I will have to look into making it a service too.

best regards
Jens-Christian

On 30 Nov., 11:57, Nugman  wrote:
> First of all the MediaPlayer does not support all music streaming
> formats, as I understood.
> I also struggeling with it.
> For me it is working to play a mp3 file located on a server. Try this
> first.
> But it seems that m3u or aac is not supported at all. (Implement a
> ErrorListener to see the error)
> I hope that I am wrong in this case, but I cant get it to work,
> either.
> Maybe you can decrypt the m3u file yourself to get the mpeg itself.
> Let me know how this works.
>
> Nevertheless the best thing is, to create a remote service (or a
> thread) that prepares and plays the music. So it does not disturb the
> main gui.
>
> Sorry that is all I know.
> Greets Klaus
>
> On 27 Nov., 11:25,Jens-ChristianLarsen 
> wrote:
>
> > I am trying to make a very simple radio player for Android and I
> > cannot get the audio streaming to work. In my latest attempt it plays
> > for about 1 second and stops for some streams and it doesnt work at
> > all for some other streams. Logcat doesn't give much useful
> > information to me.
> > I am testing on HTC Hero (Android 1.5).
>
> > If I hook the completion and buffer events I see the audio gets a
> > complete event but it keeps buffering.
> > Is there anything wrong with the code below?
> > Should I be able to stream the the audio streams below?
> > Is there a complete example somewhere of a working radio streaming?
>
> > Thanks for any and all suggestions.
>
> > public class MyActivity extends Activity implements OnPreparedListener
> > {
> >         MediaPlayer streamPlayer = new MediaPlayer();
>
> >         public void onPrepared(MediaPlayer mp) {
> >                 streamPlayer.start();
> >         }
>
> >         @Override
> >         public void onCreate(Bundle savedInstanceState) {
> >                 super.onCreate(savedInstanceState);
> >                 String path = "http://www.nch.com.au/acm/sample.aac";;
> >                 // String path = "http://radio.bis.bg:8000/buddhabar";;
> >                 // String path = 
> > "http://kzsulive.stanford.edu/audio/kzsu-1-24.m3u";;
> >                 try {
> >                         Uri uri = Uri.parse(path);
> >                         streamPlayer.reset();
> >                         streamPlayer.setDataSource(this, uri);
> >                         
> > streamPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
> >                         streamPlayer.setOnPreparedListener(this);
> >                         streamPlayer.prepareAsync();
> >                 } catch (Exception e) {
> >                         e.printStackTrace();
> >                 }
> >                 setContentView(R.layout.main);
> >         }
>
> > }
>
>

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[android-developers] Playing a audio stream not working using MediaPlayer

[Jens-Christian Larsen]

I am trying to make a very simple radio player for Android and I
cannot get the audio streaming to work. In my latest attempt it plays
for about 1 second and stops for some streams and it doesnt work at
all for some other streams. Logcat doesn't give much useful
information to me.
I am testing on HTC Hero (Android 1.5).

If I hook the completion and buffer events I see the audio gets a
complete event but it keeps buffering.
Is there anything wrong with the code below?
Should I be able to stream the the audio streams below?
Is there a complete example somewhere of a working radio streaming?

Thanks for any and all suggestions.


public class MyActivity extends Activity implements OnPreparedListener
{
MediaPlayer streamPlayer = new MediaPlayer();

public void onPrepared(MediaPlayer mp) {
streamPlayer.start();
}

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
String path = "http://www.nch.com.au/acm/sample.aac";;
// String path = "http://radio.bis.bg:8000/buddhabar";;
// String path = 
"http://kzsulive.stanford.edu/audio/kzsu-1-24.m3u";;
try {
Uri uri = Uri.parse(path);
streamPlayer.reset();
streamPlayer.setDataSource(this, uri);

streamPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
streamPlayer.setOnPreparedListener(this);
streamPlayer.prepareAsync();
} catch (Exception e) {
e.printStackTrace();
}
setContentView(R.layout.main);
}
}

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[android-developers] Re: Hmm... at last ADC2 is out of our way ... tell about your app and experience

[Jens Finkhaeuser]

Hey all!

My submission is PackRat. It's a media collection manager... I collect
a lot of books, CDs, you name it, and hardly remember what exactly I
have and don't have. Writing that app scratched a fairly persistent
itch for me. You can find out more about it on http://packrat.unwesen.de/

Jens
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[android-developers] Re: Invoking Activity from PendingIntent in NotificationManager

[jens hohl]

Thanks,

finally i got it working. The Log was empty but i forget to declare it
in the Manifest.xml

On 22 Jun., 19:42, Josh Guilfoyle  wrote:
> Check with adb logcat to see if there was a problem launching your
> activity.  My initial guess is that you forgot to declare this
> activity in the AndroidManifest.xml file.  You also should not need to
> use FLAG_CANCEL_CURRENT, nor should you need to use
> Main.this.getBaseContext, as any Context would suffice, including
> Main.this.
>
> On Jun 22, 1:05 am, mac-systems  wrote:
>
> > Hello,
>
> > i want to Inform the User about an Event from my Application using the
> > NotificationManager and then invoking a Activity with details about
> > the Event.
>
> > As far as i know it should work like this:
>
> >                                 final NotificationManager mManager = 
> > (NotificationManager)
> > getSystemService(Context.NOTIFICATION_SERVICE);
>
> >                                 Intent intent = new Intent(Main.this,
> > AlarmNotificationDetail.class);
>
> >                                 Notification notification = new 
> > Notification(R.drawable.icon,
> > "Notify", System.currentTimeMillis());
> >                                 notification.setLatestEventInfo(Main.this, 
> > "App Name",
> > "Description of the notification",PendingIntent
> >                                                 
> > .getActivity(Main.this.getBaseContext(), 0, intent,
> >PendingIntent.FLAG_CANCEL_CURRENT));
> >                                 mManager.notify(815, notification);
>
> > This put an Event in my Statusbar, but it do not forward to the
> > AlarmNotificationDetail.class Activity. Main.this is the Context from
> > which this Event is triggered.
>
> > The Activity to Invoke looks live this and should  bring up a Toast
> > when created:
>
> > public class AlarmNotificationDetail extends Activity
> > {
>
> >         /*
> >          * (non-Javadoc)
> >          *
> >          * @see android.app.Activity#onCreate(android.os.Bundle)
> >          */
> >         @Override
> >         protected void onCreate(Bundle savedInstanceState)
> >         {
> >                 super.onCreate(savedInstanceState);
> >                 setContentView(R.layout.alarmnotificationdetail);
>
> >                 Toast.makeText(this, "this is a toast", Toast.LENGTH_LONG);
> >         }
>
> > }
>
> > Anyone can help me out ?
>
> > regards,
> > Mac
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[android-developers] Voice calls which uses its own audio instead of the build-in microphone

[Jens K.]

Hi there,

we're a group of students and trying to implement some kind of voice
cryptography over a gsm connection (without modifing any gsm related
codecs, we render pure audio which gets transmitted via gsm). Is it
possible to initiate a voice call and transmit our generated audio
signal (means bypassing the microphone as the primary audio source for
that call)?
I write this because I'm slightly worried after reading some posts on
this list/group which states that the android.telphony APIs are
private and can't be called from processes outside the the telephone
subsystem.

Kind regards,
 Jens
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