Merge pull request #72 from shreelakshmijoshi/AnimatedVectorDrawableCompat-61

Fixing App Crash When Back Key Pressed During Animations

Author: yaraki

DrawableAnimations/app/src/main/java/com/example/android/drawableanimations/demo/animated/AnimatedFragment.kt

@@ -30,12 +30,19 @@ class AnimatedFragment : Fragment(R.layout.animated_fragment) {
 
     private val binding by viewBindings(AnimatedFragmentBinding::bind)
 
+    override fun onDestroyView() {
+        super.onDestroyView()
+        (binding.icon.drawable as? AnimatedVectorDrawableCompat)?.clearAnimationCallbacks()
+    }
+
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+
         val icon = AnimatedVectorDrawableCompat.create(
             requireContext(),
             R.drawable.ic_hourglass_animated
         )!!
-        icon.registerAnimationCallback(object: Animatable2Compat.AnimationCallback() {
+
+        icon.registerAnimationCallback(object : Animatable2Compat.AnimationCallback() {
             override fun onAnimationStart(drawable: Drawable?) {
                 binding.start.isEnabled = false
                 binding.stop.isEnabled = true

DrawableAnimations/app/src/main/java/com/example/android/drawableanimations/demo/seekable/SeekableFragment.kt

@@ -20,6 +20,7 @@ import android.os.Bundle
 import android.view.View
 import android.widget.SeekBar
 import androidx.fragment.app.Fragment
+import androidx.vectordrawable.graphics.drawable.AnimatedVectorDrawableCompat
 import androidx.vectordrawable.graphics.drawable.SeekableAnimatedVectorDrawable
 import com.example.android.drawableanimations.R
 import com.example.android.drawableanimations.databinding.SeekableFragmentBinding
@@ -29,6 +30,11 @@ class SeekableFragment : Fragment(R.layout.seekable_fragment) {
 
     private val binding by viewBindings(SeekableFragmentBinding::bind)
 
+    override fun onDestroyView() {
+        super.onDestroyView()
+        (binding.icon.drawable as? AnimatedVectorDrawableCompat)?.clearAnimationCallbacks()
+    }
+
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         // You can use the same XML format of <animated-vector> to inflate a
         // SeekableAnimatedVectorDrawable.