I'm developing a VR video viewer using Android Cardboard SDK and RajawaliVR (https://github.com/Rajawali/RajawaliVR)
On some devices I have this crash when returning from sleep (others just show black screen):
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.opengl.GLSurfaceView$GLThread.surfaceCreated()' on a null object reference
at android.opengl.GLSurfaceView.surfaceCreated(GLSurfaceView.java:523)
at android.view.SurfaceView.updateWindow(SurfaceView.java:580)
at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:176)
at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:944)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1970)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1061)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5891)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
at android.view.Choreographer.doCallbacks(Choreographer.java:580)
at android.view.Choreographer.doFrame(Choreographer.java:550)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5292)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699)
As you can see the crash is in the android code, how do I start debugging it?
You have access to the source code, so start with that.
Assuming you're using Lollipop, it's failing on this line:
mGLThread.surfaceCreated();
The error message indicates that mGLThread is null. Doing a simple search for the assignment ("mGLThread =") with the web browser reveals two instances, the most interesting of which is this one:
public void setRenderer(Renderer renderer) {
...
mGLThread = new GLThread(mThisWeakRef);
Setting some of the complexities aside, mGLThread should be non-null so long as setRenderer() is called. So the first thing to do is check to see if your application is calling setRenderer() (typically in onCreate()).
If you're following along the Android Developer OpenGL tutorial, it's possible that Android Studio corrected this definition in your Activity class constructor:
mGLView = new MyGLSurfaceView(this);
and changed it to
mGLView = new GLSurfaceView(this);
because the class MyGLSurfaceView had not been coded yet...skipping the MyGLSurfaveView constructor which is where setRenderer(...) is called. Mr. fadden's answer above is excellent, explains how to diagnose the problem.
Related
Sometimes, I get this crash while my app is opening:
Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'void androidx.appcompat.widget.ContentFrameLayout.setDecorPadding(int, int, int, int)' on a null object reference
at androidx.appcompat.app.AppCompatDelegateImpl.applyFixedSizeWindow(AppCompatDelegateImpl.java:1026)
at androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor(AppCompatDelegateImpl.java:820)
at androidx.appcompat.app.AppCompatDelegateImpl.onPostCreate(AppCompatDelegateImpl.java:527)
at androidx.appcompat.app.AppCompatActivity.onPostCreate(AppCompatActivity.java:127)
at android.app.Instrumentation.callActivityOnPostCreate(Instrumentation.java:1381)
at android.app.ActivityThread.handleStartActivity(ActivityThread.java:3499)
at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:221)
at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:201)
at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:173)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2147)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:7814)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1075)
As you can see, there's no reference to something in my code in the stack trace so for this reason I'm not able to figure out what the problem is. What could be the cause of this crash?.
In my case, I was getting this error in production when I load the first screen. I also use androidx and no Support Libraries. Some times this crash looks like:
Caused by java.lang.RuntimeException
Window couldn't find content container view ***.onCreate
Unfortunately, I still don't understand what exactly the error is but I found this post. I changed onCreate method to:
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
getWindow().getDecorView();
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_screen);
}
Just added getWindow().getDecorView(); before super.onCreate(savedInstanceState); and it solved my problem.
Add as null check before calling this method
if (YourContentFrameLayout != null)
YourContentFrameLayout.setDecorPadding(intvalue,intvalue,intvalue,intvalue);
We're debugging a crash in a Cordova app that seems to happen on launch / foregrounding, after the app was backgrounded for a moderate amount of time and has been to some extent killed by the OS.
At the time of the crash the app is attempting to show a native dialog fragment for Fingerprint Authentication. For some reason in this case the resources for this fragment cannot be found.
It's been reported for Android 6 and 7, on older and newer devices.
java.lang.RuntimeException: Unable to start activity ComponentInfo{ca.koho/ca.koho.Koho}: android.content.res.Resources$NotFoundException: Resource ID #0x0
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2421)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2481)
at android.app.ActivityThread.access$900(ActivityThread.java:155)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1349)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:174)
at android.app.ActivityThread.main(ActivityThread.java:5440)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x0
at android.content.res.Resources.getValue(Resources.java:1437)
at android.content.res.Resources.loadXmlResourceParser(Resources.java:2887)
at android.content.res.Resources.getLayout(Resources.java:1251)
at android.view.LayoutInflater.inflate(LayoutInflater.java:421)
at com.cordova.plugin.android.fingerprintauth.FingerprintAuthenticationDialogFragment.onCreateView(FingerprintAuthenticationDialogFragment.java:85)
at android.app.Fragment.performCreateView(Fragment.java:2220)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:973)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1148)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1130)
at android.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManager.java:1953)
at android.app.FragmentController.dispatchActivityCreated(FragmentController.java:152)
at android.app.Activity.performCreateCommon(Activity.java:6279)
at android.app.Activity.performCreate(Activity.java:6287)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2374)
... 9 more
Here's the problematic bit of code, from the DialogFragment's onCreateView:
int fingerprint_dialog_container_id = getResources()
.getIdentifier("fingerprint_dialog_container", "layout",
FingerprintAuth.packageName);
View v = inflater.inflate(fingerprint_dialog_container_id, container, false);
When the crash happens, getIdentifier(...) is for some reason returning 0. Most of the time the actual identifier is returned.
I have not found a way to reproduce the crash, and advice to enable developer options like 'Don't keep activities' and 'Background process limit' had did not help.
Thanks for any help.
I load recycler normally and data is shown properly. But I have requirement to recreate my actvity on certain condition. When I recreate my activity, Recycler view is initialized again and is loaded with new set of data. But this time I get a crash. Below are the logs. Any help would be really appreciated.. !!!
Fatal Exception: java.lang.ArrayIndexOutOfBoundsException: start < 0 || end > len. start=-1, end=11, len=11
at java.util.Arrays.checkStartAndEnd(Arrays.java:1732)
at java.util.Arrays.fill(Arrays.java:803)
at android.support.v7.widget.StaggeredGridLayoutManager$LazySpanLookup.invalidateAfter(StaggeredGridLayoutManager.java:2652)
at android.support.v7.widget.StaggeredGridLayoutManager.handleUpdate(StaggeredGridLayoutManager.java:1496)
at android.support.v7.widget.StaggeredGridLayoutManager.onItemsUpdated(StaggeredGridLayoutManager.java:1472)
at android.support.v7.widget.RecyclerView$6.dispatchUpdate(RecyclerView.java:781)
at android.support.v7.widget.RecyclerView$6.onDispatchFirstPass(RecyclerView.java:769)
at android.support.v7.widget.AdapterHelper.dispatchFirstPassAndUpdateViewHolders(AdapterHelper.java:316)
at android.support.v7.widget.AdapterHelper.dispatchAndUpdateViewHolders(AdapterHelper.java:302)
at android.support.v7.widget.AdapterHelper.applyUpdate(AdapterHelper.java:222)
at android.support.v7.widget.AdapterHelper.preProcess(AdapterHelper.java:106)
at android.support.v7.widget.RecyclerView.consumePendingUpdateOperations(RecyclerView.java:1492)
at android.support.v7.widget.RecyclerView.access$400(RecyclerView.java:151)
at android.support.v7.widget.RecyclerView$1.run(RecyclerView.java:305)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858)
at android.view.Choreographer.doCallbacks(Choreographer.java:670)
at android.view.Choreographer.doFrame(Choreographer.java:603)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
In my case, I was trying to notifyItemChanged(Default_pos), where Default_pos was -1 which doesnot exist.
Hence I was getting ArrayIndexOutOfBound.
When You are try to recreate your activity, RecyclerView still trying to display view items and ComputingLayout
RecyclerView is in a lockdown state and any attempt to update adapter
contents will result in an exception
Solution
You should just postpone recreate activity using a Handler.
Check RecyclerView.isComputingLayout() should return false before you fire your change.
For more details Check my answer
Wrapping listAdapter.notifyItemChanged(position) in an if-block and predicating that position cannot equal -1 fixed it for me.
if (position != -1 ){
listAdapter.notifyItemChanged(position)
}
Am getting an Window couldn't find content container view. This error asking when the app is going to checking the permission
I noticed that for the wear app , am copying the wear apk into the raw folder.
Its having around 2.5 Mb. After adding this am getting this crash
java.lang.RuntimeException: Window couldn't find content container view
at com.android.internal.policy.PhoneWindow.generateLayout(PhoneWindow.java:4614)
at com.android.internal.policy.PhoneWindow.installDecor(PhoneWindow.java:4683)
at com.android.internal.policy.PhoneWindow.getDecorView(PhoneWindow.java:2263)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4276)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3361)
at android.app.ActivityThread.access$1100(ActivityThread.java:222)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1795)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7229)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
Comscore library was causing this issue in my case. Try removing it.
A few days ago we started to receive some crash reports from users using our app, but the stracktrace is really strange. It happens only on Samsung G900f (S5) and I can't reproduce it and decide to post a question here.
The stacktrace shows this:
Caused by java.lang.ClassCastException: android.support.design.widget.CollapsingToolbarLayout cannot be cast to android.support.design.widget.CollapsingToolbarLayout
at com.packageName.profile.ProfileFragment.onViewCreated(SourceFile:423)
at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1086)
at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1248)
at android.support.v4.app.BackStackRecord.run(SourceFile:738)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(SourceFile:1613)
at android.support.v4.app.FragmentController.execPendingActions(SourceFile:330)
at android.support.v4.app.FragmentActivity.onStart(SourceFile:547)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1234)
at android.app.Activity.performStart(Activity.java:6258)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2621)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2725)
at android.app.ActivityThread.access$900(ActivityThread.java:172)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1422)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5834)
at java.lang.reflect.Method.invoke(Method.java)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1388)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1183)
It is a Fragment which contains CollapsingToolbarLayout with initialization and use all correct, but not sure why this happens.
We got some other ClassCastExceptions with different classes from the same device. For example:
Caused by java.lang.ClassCastException:
com.packageName.model.VideoMeta cannot be cast to
com.packageName.model.VideoMeta
where VideoMeta is a class which implements Parcelable and this exception occurs in class Video which implements Parcelable too:
private Video(Parcel in) {
id = in.readLong();
postId = in.readString();
url = in.readString();
thumb = in.readString();
meta = (VideoMeta) in.readValue(VideoMeta.class.getClassLoader());
}
But that's not the end...
Caused by java.lang.ClassCastException:
android.support.design.widget.AppBarLayout$LayoutParams cannot be cast to
android.support.design.widget.AppBarLayout$LayoutParams
I have no idea what can cause this exception and why it's happening, that's why posting it here.
Thanks in advance for any kind of help or suggestions!