MotionLayout prevents ClickListener on all Views

Question

I am using a MotionLayout with a scene-xml:

    <         


        

Answer 1

@muetzenflo's response is the most efficient solution I've seen so far for this problem.

However, only checking the Event.Action for MotionEvent.ACTION_MOVE causes the MotionLayout to respond poorly. It is better to differentiate between movement and a single click by the use of ViewConfiguration.TapTimeout as the example below demonstrates.

public class MotionSubLayout extends MotionLayout {

    private long mStartTime = 0;

    public MotionSubLayout(@NonNull Context context) {
        super(context);
    }

    public MotionSubLayout(@NonNull Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
    }

    public MotionSubLayout(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent event) {
        if ( event.getAction() == MotionEvent.ACTION_DOWN ) {
            mStartTime = event.getEventTime();
        } else if ( event.getAction() == MotionEvent.ACTION_UP ) {
            if ( event.getEventTime() - mStartTime <= ViewConfiguration.getTapTimeout() ) {
                return false;
            }
        }

        return super.onInterceptTouchEvent(event);
    }
}