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Handle Scrollable Views or Controls in another Scrollview in Android

In life of any Android developer, there are times when there is a requirement in the application to use one scrollable control inside another scrollable control. In such cases, the scrolling functionality of one or all scrollable controls gets enabled and the Android application cannot identify that scroll event of which control is to be handled first. Here, UI may get stuck in some scenarios.
The ideal behavior expected is when the user touches the parent scroll view, only the parent view’s scroll event is called and when the user scrolls the child scroll view, the child view’s scroll event is called. In our standard Android application development and implementation process it does not happen when we add scrollable control in another scrollable control.
Below is the solution to handle the scroll event of both the controls without any glitch.
Example
We have a layout that has a ScrollView as parent layout and it contains some TextViews, ImageViews and ListView as child controls.
The id of the parent ScrollView is m_parentScrollView and child ScrollView is m_childScrollView. Now in the onCreate method we have to set Touchlistener event for both the scroll views and use requestDisallowInterceptTouchEvent of the view.
For parent scroll view, below code disables the scrolling event for the child scrollable controls in the m_parentScrollView. So the user can scroll the parent scroll view and see the controls of parent scroll view without UI getting stuck,
Java
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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;
        }
});
For the child scroll view, below code disables the scroll event of parent scroll view if the user touches on child scroll view,
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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

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