Two nested vertical scroll views in android

Question

I am using two vertical scroll views(say,parent and child).what is the issue is I am not able to scroll my child view instead it scrolls my whole parent view,is there any way that I can restrict my parent view to scroll when I scroll my child scroll view and vice versa?

need help...thanks in advance..!!

Follow this http://stackoverflow.com/questions/4490821/scrollview-inside-scrollview — jyomin, Apr 10 '15 at 04:49

score 4 · Accepted Answer · answered Apr 10 '15 at 04:47

You need to handle the touch event to do this effectively

        outerScrollView.setOnTouchListener(new View.OnTouchListener() {

            public boolean onTouch(View v, MotionEvent event) {
                findViewById(R.id.inner_scroll).getParent()
                        .requestDisallowInterceptTouchEvent(false);
                return false;
            }
        });

        innerScrollView.setOnTouchListener(new View.OnTouchListener() {

            public boolean onTouch(View v, MotionEvent event) {
                v.getParent().requestDisallowInterceptTouchEvent(true);
                return false;
            }
        });

" findViewById(R.id.inner_scroll).getParent()" means "parentScrollView" — M. Usman Khan, May 14 '15 at 08:58

score 1 · Answer 2 · answered Apr 10 '15 at 04:45

Try this one

Note: Here parentScrollView means Outer ScrollView And childScrollView means Innner ScrollView

parentScrollView.setOnTouchListener(new View.OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
        Log.v(TAG, "PARENT TOUCH");

        findViewById(R.id.child_scroll).getParent()
                .requestDisallowInterceptTouchEvent(false);
        return false;
    }
});

childScrollView.setOnTouchListener(new View.OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
        Log.v(TAG, "CHILD TOUCH");

        // Disallow the touch request for parent scroll on touch of  child view
        v.getParent().requestDisallowInterceptTouchEvent(true);
        return false;
    }
});

score 1 · Answer 3 · answered May 14 '15 at 08:57

This is better for understanding:

childScrollView.setOnTouchListener(new View.OnTouchListener() {
                @Override
                public boolean onTouch(View v, MotionEvent event) {

                    int action = event.getAction();
                    switch (action) {
                        case MotionEvent.ACTION_DOWN:
                            // Disallow ScrollView to intercept touch events.
                            parentScrollV.requestDisallowInterceptTouchEvent(true);

                            break;

                        case MotionEvent.ACTION_UP:
                            // Allow ScrollView to intercept touch events.
                            parentScrollV.requestDisallowInterceptTouchEvent(false);

                            break;
                    }
                    return false;
                }
            });

score -2 · Answer 4 · edited Apr 10 '15 at 05:51

-Here is the SOlution you can find With the descriptionHere.

    m_parentScrollView.setOnTouchListener(new View.OnTouchListener() 
    {
           public boolean onTouch(View p_v, MotionEvent p_event) 
            {
                   m_childScrollView.getParent().requestDisallowInterceptTouchEvent(false);
               //  We will have to follow above for all scrollable contents
               return false;
            }
    });


m_childScrollView.setOnTouchListener(new View.OnTouchListener() 
{
      public boolean onTouch(View p_v, MotionEvent p_event)
       {
          // this will disallow the touch request for parent scroll on touch of child view
           p_v.getParent().requestDisallowInterceptTouchEvent(true);
           return false;
       }
});

// We will have to follow above for all child scrollable contents I

These two methods can solve your answer.

While this link may answer the question, it is better to include the essential parts of the answer here and provide the link for reference. Link-only answers can become invalid if the linked page changes. — Brian White, Apr 10 '15 at 05:34
@BrianWhite THanks for your suggestion and yes you are right at your point. — Hardy, Apr 10 '15 at 05:37

Two nested vertical scroll views in android

4 Answers4