Android scrollview inside another scrollview doesn't scroll

Question

I\'m trying to put a ScrollView inside another ScrollView and I tried the answers found on this site but it still doesn\'t seems to work completely. Here is the XML:

Answer 1

I use RectF to test whether you finger locates in the range of your child_view.

I've used it for a case that a mix between scrollview and viewpager(that contains two pages with recycleviews).

Try these codes and you will get what you wanna.

findViewById(R.id.parent_view).setOnTouchListener(new View.OnTouchListener() {
        public boolean onTouch(View v, MotionEvent event) {
            View childV = findViewById(R.id.child_view);
            if (childV != null) {
                int[] l = new int[2];
                childV.getLocationOnScreen(l);
                RectF rect = new RectF(l[0], l[1], l[0] + childV.getWidth(), l[1] + childV.getHeight());
                if(rect.contains(  event.getX(), event.getY())) {
                    childV.getParent()
                            .requestDisallowInterceptTouchEvent(false);
                    childV.onTouchEvent(event);
                    return true;
                }
            }
            childV.getParent()
                    .requestDisallowInterceptTouchEvent(true);
            return false;
        }
    });