Fix infinite animation loop when system animations are disabled.

app/src/main/java/org/thoughtcrime/securesms/stories/StoryFirstTimeNavigationView.kt

@@ -19,6 +19,7 @@ import com.bumptech.glide.request.target.Target
 import org.thoughtcrime.securesms.R
 import org.thoughtcrime.securesms.blurhash.BlurHash
 import org.thoughtcrime.securesms.mms.GlideApp
+import org.thoughtcrime.securesms.util.areSystemAnimationsDisabled
 import org.thoughtcrime.securesms.util.visible
 
 class StoryFirstTimeNavigationView @JvmOverloads constructor(
@@ -118,6 +119,10 @@ class StoryFirstTimeNavigationView @JvmOverloads constructor(
   }
 
   private fun startLottieAnimations() {
+    if (context.contentResolver.areSystemAnimationsDisabled()) {
+      return
+    }
+
     isPlayingAnimations = true
     tapToAdvance.addAnimatorListener(object : AnimatorListenerAdapter() {
       override fun onAnimationEnd(animation: Animator?) {

app/src/main/java/org/thoughtcrime/securesms/util/ContentResolverExtensions.kt

@@ -0,0 +1,11 @@
+package org.thoughtcrime.securesms.util
+
+import android.content.ContentResolver
+import android.provider.Settings
+
+fun ContentResolver.areSystemAnimationsDisabled(): Boolean {
+  val durationScale = Settings.System.getFloat(this, Settings.Global.ANIMATOR_DURATION_SCALE)
+  val transitionScale = Settings.System.getFloat(this, Settings.Global.TRANSITION_ANIMATION_SCALE)
+
+  return !(durationScale > 0f && transitionScale > 0f)
+}