Exactly, what i was talking about: "Be very careful with the object you pass through onRetainNonConfigurationChange(), though. If the object you pass is for some reason tied to the Activity/Context, you will leak all the views and resources of the activity. This means you should never pass a View, a Drawable, an Adapter, etc. Photostream for instance extracts the bitmaps from the drawables and pass the bitmaps only, not the drawables. Finally, remember that onRetainNonConfigurationChange() should be used only to retain data that is expensive to load. Otherwise, keep it simple and let Android do everything."
On Mar 8, 12:50 pm, jamesc <[email protected]> wrote: > Have you read this?: > > http://developer.android.com/intl/de/resources/articles/faster-screen... > > On Mar 8, 11:19 am, Chronos <[email protected]> wrote: > > > Hi Martin, > > > I am not sure if this is the problem, but you should not keep > > instances to the old activity during configuration change at all > > (MediaPlayer is created with a Context); think about initializing and > > managing the MediaPlayer in your Application class or a background > > service, if you want it to survive configuration changes. > > > Have fun > > > On Feb 16, 1:24 pm, Martin Nilsson <[email protected]> wrote: > > > > It seems that my media player object is somehow destroyed when I use > > > onRetainNonConfigurationInstance. I when I catch the object in > > > "createMediaPlayer" below I can verify that mp != null. But when I try > > > to get the current position with mp.getCurrentPosition() I get an > > > exception and the activity shuts down. I can see the following in the > > > log: > > > > 02-16 10:45:55.869: DEBUG/StreamingPlayer(1854): restoreMediaPlayer > > > 02-16 10:45:55.879: DEBUG/AndroidRuntime(1854): Shutting down VM > > > 02-16 10:45:55.879: WARN/dalvikvm(1854): threadid=3: thread exiting > > > with uncaught exception (group=0x4000fe70) > > > 02-16 10:45:55.889: ERROR/AndroidRuntime(1854): Uncaught handler: > > > thread main exiting due to uncaught exception > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): > > > java.lang.RuntimeException: Unable to start activity > > > ComponentInfo{com.stericsson.streamingplayer/ > > > com.stericsson.streamingplayer.StreamingPlayer}: > > > java.lang.IllegalStateException > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > android.app.ActivityThread.performLaunchActivity(ActivityThread.java: > > > 2268) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > android.app.ActivityThread.handleLaunchActivity(ActivityThread.java: > > > 2284) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java: > > > 3278) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > android.app.ActivityThread.access$1900(ActivityThread.java:112) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > android.app.ActivityThread$H.handleMessage(ActivityThread.java:1696) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > android.os.Handler.dispatchMessage(Handler.java:99) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > android.os.Looper.loop(Looper.java:123) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > android.app.ActivityThread.main(ActivityThread.java:3948) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > java.lang.reflect.Method.invokeNative(Native Method) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > java.lang.reflect.Method.invoke(Method.java:521) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > com.android.internal.os.ZygoteInit > > > $MethodAndArgsCaller.run(ZygoteInit.java:782) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > dalvik.system.NativeStart.main(Native Method) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): Caused by: > > > java.lang.IllegalStateException > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > android.media.MediaPlayer.getCurrentPosition(Native Method) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > com.stericsson.streamingplayer.StreamingPlayer.restoreMedidaPlayer(StreamingPlayer.java: > > > 233) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > com.stericsson.streamingplayer.StreamingPlayer.createMediaPlayer(StreamingPlayer.java: > > > 155) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > com.stericsson.streamingplayer.StreamingPlayer.onCreate(StreamingPlayer.java: > > > 94) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > android.app.Instrumentation.callActivityOnCreate(Instrumentation.java: > > > 1123) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): at > > > android.app.ActivityThread.performLaunchActivity(ActivityThread.java: > > > 2231) > > > 02-16 10:45:55.919: ERROR/AndroidRuntime(1854): ... 12 more > > > > The code which gives the print " restoreMediaPlayer" is located in > > > function "createMediaPlayer" which I provided in my previous post. > > > > Why can't I pass trough the media player object when I can send > > > variables just fine? Could it be that I need to create a new thread? > > > When I start the media player the first time it looks like this in the > > > code: > > > > Runnable r = new Runnable() { > > > public void run() { > > > > > > setDataSource(path); > > > prepare(); > > > start(); > > > } > > > }; > > > new Thread(r).start(); > > > > But I wasn't able to reuse the code after orientation change, I still > > > had my activity crashing. > > > > Regards > > > > Martin > > > > On 15 Feb, 13:46, Martin Nilsson <[email protected]> wrote: > > > > > Hello, > > > > > I am trying to keep a video playback going after a orientation change > > > > but keep getting a crash when trying to pass the media player trough > > > > onRetainNonConfigurationInstance. > > > > > I can pass the time, setup the media player from scratch and do a fast > > > > forward but I would not like to do the setup more than once. > > > > > My code looks like: > > > > > @Override > > > > public Object onRetainNonConfigurationInstance() { > > > > return( mp ); > > > > } > > > > > public void onCreate(Bundle icicle) { > > > > ... > > > > createMediaPlayer(); > > > > > } > > > > > public void createMediaPlayer() { > > > > ... > > > > if (getLastNonConfigurationInstance()!=null) { > > > > mp = (MediaPlayer)getLastNonConfigurationInstance() ; > > > > } else { > > > > mp = new MediaPlayer(); > > > > ... > > > > } > > > > > } > > > > > Can anyone help me pinpoint why this does not work? > > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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