Howdy—
I'm getting crash reports from my app out in the wild. Problem is, I
don't know what's causing it. The only place I'm using WebKit is when
constructing an -in-app help browser. Here's the full stack trace:
java.lang.NullPointerException
at android.webkit.WebView.onWindowFocusChanged(WebView.java:4177)
at android.view.View.dispatchWindowFocusChanged(View.java:3788)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:
658)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:
662)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:
662)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:
662)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:
662)
at android.view.ViewRoot.handleMessage(ViewRoot.java:1921)
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:868)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
at dalvik.system.NativeStart.main(Native Method)
The help browser window takes the full screen, with a bar at the
bottom for "help" and "done" buttons. The only way I can conceive of
the help window losing focus is if someone clicks outside of the bar,
or the screen dims. Will catching and throwing the NPE be sufficient
for eliminating this error, or do I need to add some further metadata
in the Android Manifest XML?
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