that line in 2.2 of ViewGroup.java is if ((child.mViewFlags & VISIBILITY_MASK) == VISIBLE || child.getAnimation() != null)
so it would imply that one of the child views in the ViewGroup is null. Are you doing stuff with dynamically adding/deleting any views? I'm not sure why it would not know about one getting removed in the first place... SurfaceView is cranking away in its own thread, too, so not sure if something happened because of some weird interaction going on (I was learning first hand about that this past weekend). I think you might be getting a warning/error in logcat if you were doing this, though. On Tue, May 17, 2011 at 5:50 PM, snpe <snp...@gmail.com> wrote: > You could attach the source code to your android.jar (see > http://code.google.com/p/adt-addons/, chapter Android Sources) > and set a conditional breakpoint to the ViewGroup.dispatchDraw method. > Review different SDK versions because it could be a bug in some SDK. > > Regards, > Peco > > On May 3, 8:55 pm, vatsee <vat...@gmail.com> wrote: >> Hi gurus, >> >> I am working on an app that supports bidirectional audio-video >> communication. As part of that, the video GUI screen uses >> MediaRecorder for recording outgoing video & uses two surfaceView >> subclasses to display preview & incoming video. >> >> During the video call, I am seeing a (random) NPE. This trace (listed >> below) does not show any of my app code. >> I am not sure how to debug this issue. >> >> Has anybody seen anything similar to this? Appreciate if I can get >> some pointers on how to debug this issue. >> >> java.lang.NullPointerException >> at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1366) >> at android.view.ViewGroup.drawChild(ViewGroup.java:1638) >> at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1367) >> at android.view.ViewGroup.drawChild(ViewGroup.java:1638) >> at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1367) >> at android.view.View.draw(View.java:6743) >> at android.widget.FrameLayout.draw(FrameLayout.java:352) >> at com.android.internal.policy.impl.PhoneWindow >> $DecorView.draw(PhoneWindow.java:2058) >> at android.view.ViewRoot.draw(ViewRoot.java:1432) >> at android.view.ViewRoot.performTraversals(ViewRoot.java:1174) >> at android.view.ViewRoot.handleMessage(ViewRoot.java:1752) >> at android.os.Handler.dispatchMessage(Handler.java:99) >> at android.os.Looper.loop(Looper.java:123) >> at android.app.ActivityThread.main(ActivityThread.java:4627) >> at java.lang.reflect.Method.invokeNative(Native Method) >> at java.lang.reflect.Method.invoke(Method.java:521) >> at com.android.internal.os.ZygoteInit >> $MethodAndArgsCaller.run(ZygoteInit.java:858) >> at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) >> at dalvik.system.NativeStart.main(Native Method) >> >> Many thanks! > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
