import android.annotation.SuppressLint;
import android.content.Context;
import android.os.Handler;
+import android.os.Looper;
import android.view.MotionEvent;
import android.view.ViewGroup;
import android.view.ViewPropertyAnimator;
generation++;
int thisGeneration = generation;
fabHandler.hideManagedFab();
- new Handler().postDelayed(() -> {
+ new Handler(Looper.getMainLooper()).postDelayed(() -> {
if (generation != thisGeneration)
return;