NullPointerException when calling ViewCompat.getRootWindowInsets(rootView).isVisible

[tobias-kuendig]

Bug Report

Capacitor Version

  @capacitor/ios: not installed
  @capacitor/cli: 8.0.2
  @capacitor/android: 8.0.2
  @capacitor/core: 8.0.2

Platform(s)

Android

Current Behavior

I've received the following NullPointerException when my app is being closed. It does only happen sporadically. It seems like the ViewCompat.getRootWindowInsets(rootView).isVisible call can return null under certain circumstances. This null value must be handled.

java.lang.NullPointerException: Attempt to invoke virtual method 'boolean androidx.core.view.WindowInsetsCompat.isVisible(int)' on a null object reference
    at com.capacitorjs.plugins.keyboard.Keyboard$1.onEnd(Keyboard.java:109)
    at androidx.core.view.WindowInsetsAnimationCompat$Impl21.dispatchOnEnd(WindowInsetsAnimationCompat.java:956)
    at androidx.core.view.WindowInsetsAnimationCompat$Impl21$Impl21OnApplyWindowInsetsListener$2.onAnimationEnd(WindowInsetsAnimationCompat.java:857)
    at android.animation.Animator$AnimatorListener.onAnimationEnd(Animator.java:554)
    at android.animation.ValueAnimator.endAnimation(ValueAnimator.java:1242)
    at android.animation.ValueAnimator.doAnimationFrame(ValueAnimator.java:1484)
    at android.animation.AnimationHandler.doAnimationFrame(AnimationHandler.java:146)
    at android.animation.AnimationHandler.access$100(AnimationHandler.java:37)
    at android.animation.AnimationHandler$1.doFrame(AnimationHandler.java:54)
    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:965)
    at android.view.Choreographer.doCallbacks(Choreographer.java:791)
    at android.view.Choreographer.doFrame(Choreographer.java:722)
    at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:952)
    at android.os.Handler.handleCallback(Handler.java:883)
    at android.os.Handler.dispatchMessage(Handler.java:100)
    at android.os.Looper.loop(Looper.java:214)
    at android.app.ActivityThread.main(ActivityThread.java:7386)
    at java.lang.reflect.Method.invoke(Method.java)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:980)

Additional Context

There are multiple calls to the isVisible method throughout the class.

The exception was recorded under Android 10.