Issue with Custom ViewGroup and Touch Handling in Android
Quick question that's been bugging me - I am experiencing unexpected behavior when trying to handle touch events in a custom `ViewGroup`. I’ve implemented a custom layout where I intend to intercept touch events for gesture detection, but it seems that the touch events are not propagating as expected. I am using Android SDK version 31. My custom `ViewGroup` class looks like this: ```java public class CustomLayout extends ViewGroup { public CustomLayout(Context context) { super(context); } public CustomLayout(Context context, AttributeSet attrs) { super(context, attrs); } @Override protected void onLayout(boolean changed, int l, int t, int r, int b) { // Layout children here } @Override public boolean onTouchEvent(MotionEvent event) { if (event.getAction() == MotionEvent.ACTION_MOVE) { // Handle touch move return true; } return super.onTouchEvent(event); } @Override public boolean onInterceptTouchEvent(MotionEvent event) { return true; // Intercept all touch events } } ``` I’ve overridden `onTouchEvent` to handle `ACTION_MOVE`, but I noticed that when I touch and drag quickly, I don’t receive the expected touch events. Instead, it seems like the events are being dropped, and sometimes I get intermittent logs about `ViewParent` not being able to dispatch the touch event. I’ve tried adding a debugging line in the `onInterceptTouchEvent` method to see if it gets called, but I only see it for the initial touch and not during the drag. Additionally, I have a few child views inside my custom layout. I attempted to call `requestDisallowInterceptTouchEvent(true)` in their touch listeners, but it didn’t resolve the issue. Here’s how I’m adding child views: ```java CustomLayout customLayout = findViewById(R.id.custom_layout); View childView = new View(this); customLayout.addView(childView); ``` What could I be missing that causes these touch events to not propagate correctly? Should I consider any additional flags or configurations, or is there a best practice for handling touch events in custom `ViewGroup` implementations? Any help would be greatly appreciated!