This sounds logical but since it worked on all release before JB I was
supposing that doing this in OnStop() would be done after view unload.
What is the correct way to recycle bitmaps loaded in AbsListView ?
Le vendredi 3 août 2012 23:45:35 UTC+2, Romain Guy (Google) a écrit :
>
> You cannot recycle bitmaps of Views that are still attached to the window.
>
> On Fri, Aug 3, 2012 at 2:40 PM, Tolriq wrote:
> > Hello,
> >
> > I have an app that works ok from 2.2 to 4.0 since 4.1 I started to have
> > "java.lang.IllegalArgumentException: Cannot draw recycled bitmaps".
> > After some optimizations and tests, i finally find that for an unknown
> > reason android wants to refresh my listview after the onstop during
> screen
> > off event on some devices.
> >
> > The activity is a not so complex listview with lazy loading of images.
> >
> > To optimize memory in the onstop of my listview activity i recycle
> bitmaps
> > with a simple : (needed since there lot's of activity like this one and
> on
> > some devices bitmaps are not garbaged quickly enough).
> >>
> >> final AbsListView listView = (AbsListView)
> >> findViewById(R.id.mediaslist_list);
> >> int c = listView.getChildCount();
> >> for (int i = 0; i < c; i++) {
> >> adapter.recycleView(listView.getChildAt(i));
> >> }
> >
> >
> > in the OnStop(); where the recycleView just recycle the bitmap.
> >
> > In Nexus 7 or emulator in landscape, when i shutdown screen the onstop
> is
> > called but since it wants to go to portrait for lock-screen it does
> > something with the listview and try to redraw it.
> > Leading to the error :
> >
> >> java.lang.IllegalArgumentException: Cannot draw recycled bitmaps
> >> at android.view.GLES20Canvas.drawBitmap(GLES20Canvas.java:778)
> >> at
> >>
> android.view.GLES20RecordingCanvas.drawBitmap(GLES20RecordingCanvas.java:117)
>
> >> at
> android.graphics.drawable.BitmapDrawable.draw(BitmapDrawable.java:393)
> >> at android.widget.ImageView.onDraw(ImageView.java:979)
> >> at android.view.View.draw(View.java:13458)
> >> at android.view.View.getDisplayList(View.java:12409)
> >> at android.view.View.getDisplayList(View.java:12453)
> >> at android.view.View.draw(View.java:13182)
> >> at android.view.ViewGroup.drawChild(ViewGroup.java:2929)
> >> at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2799)
> >> at android.view.View.draw(View.java:13461)
> >> at android.view.View.getDisplayList(View.java:12409)
> >> at android.view.View.getDisplayList(View.java:12453)
> >> at android.view.View.draw(View.java:13182)
> >> at android.view.ViewGroup.drawChild(ViewGroup.java:2929)
> >> at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2799)
> >> at android.widget.AbsListView.dispatchDraw(AbsListView.java:2433)
> >> at android.view.View.draw(View.java:13461)
> >> at android.widget.AbsListView.draw(AbsListView.java:3759)
> >> at android.view.View.getDisplayList(View.java:12409)
> >> at android.view.View.getDisplayList(View.java:12453)
> >> at android.view.View.draw(View.java:13182)
> >> at android.view.ViewGroup.drawChild(ViewGroup.java:2929)
> >> at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2799)
> >> at android.view.View.getDisplayList(View.java:12407)
> >> at android.view.View.getDisplayList(View.java:12453)
> >> at android.view.View.draw(View.java:13182)
> >> at android.view.ViewGroup.drawChild(ViewGroup.java:2929)
> >> at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2799)
> >> at android.view.View.getDisplayList(View.java:12407)
> >> at android.view.View.getDisplayList(View.java:12453)
> >> at android.view.View.draw(View.java:13182)
> >> at android.view.ViewGroup.drawChild(ViewGroup.java:2929)
> >> at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2799)
> >> at android.view.View.getDisplayList(View.java:12407)
> >> at android.view.View.getDisplayList(View.java:12453)
> >> at android.view.View.draw(View.java:13182)
> >> at android.view.ViewGroup.drawChild(ViewGroup.java:2929)
> >> at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2799)
> >> at android.view.View.draw(View.java:13461)
> >> at android.widget.FrameLayout.draw(FrameLayout.java:467)
> >> at
> >>
> com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:2183)
>
>
> >> at android.view.View.getDisplayList(View.java:12409)
> >> at android.view.View.getDisplayList(View.java:12453)
> >> at
> >>
> android.view.HardwareRenderer$GlRenderer.draw(HardwareRenderer.java:1144)
> >> at android.view.ViewRootImpl.draw(ViewRootImpl.java:2147)
> >> at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2019)
> >> at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1830)
> >> at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:998)
> >> at
> android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4212)
> >> at
> android.view.Choreographer$CallbackRecord.run(Choreographer.java:725)
> >> at android.view.Choreographer.doCallbacks(Choreographer.java:555)
> >> at android.view.Choreographer.doFrame(Choreographer.java:525)
> >> at
> >>
> android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711)
>
>
> >> at android.os.Handler.handleCallback(Handler.java:615)
> >> at android.os.Handler.dispatchMessage(Handler.java:92)
> >> at android.os.Looper.loop(Looper.java:137)
> >> at android.app.ActivityThread.main(ActivityThread.java:4745)
> >> at java.lang.reflect.Method.invokeNative(Native Method)
> >> at java.lang.reflect.Method.invoke(Method.java:511)
> >> at
> >>
> com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
>
>
> >> at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
> >> at dalvik.system.NativeStart.main(Native Method)
> >
> >
> > Is there something I missed in activity lifecycle or listview one ?
> (like
> > bitmap references saved with instancestate since JB ?)
> >
> > The app works perfect when orientation changes, just this specific case
> > gives this specific result . And on screen unlock the activity is
> restarted
> > so the crash is half handled by the OS.
> > The problem is that I use ACRA lib so users gets notifications about
> this
> > crash even if it's not really blocking due to activity restart.
> >
> > Regards,
> > Tolriq.
> >
> >
> >
> >
> >
> > --
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>
>
>
> --
> Romain Guy
> Android framework engineer
> [email protected]
>
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