public class VerticalScrollView extends ScrollView {

    private GestureDetector mGestureDetector;

    public VerticalScrollView(Context context, AttributeSet attrs){

        super(context, attrs);

        mGestureDetector = new GestureDetector(context, new YScrollDetector());

    }

    @Override

    public boolean onInterceptTouchEvent(MotionEvent ev) {

        return super.onInterceptTouchEvent(ev) && mGestureDetector.onTouchEvent(ev);

    }

    class YScrollDetector extends SimpleOnGestureListener {

        @Override

        public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {

            /**

             * if we're scrolling more closer to x direction, return false, let subview to process it

             */

            HBLog.i("VerticalScrollView", distanceY+"----"+distanceX);

            return (Math.abs(distanceY) > Math.abs(distanceX));

        }

    }

}

public class VerticalScrollView extends ScrollView {

    private float xDistance, yDistance, xLast, yLast; 

    public VerticalScrollView(Context context) {

        super(context);

    } 

    public VerticalScrollView(Context context, AttributeSet attrs) {

        super(context, attrs);

    } 

    public VerticalScrollView(Context context, AttributeSet attrs, int defStyle) {

        super(context, attrs, defStyle);

    } 

    @Override

    public boolean onInterceptTouchEvent(MotionEvent ev) {

        switch (ev.getAction()) {

        case MotionEvent.ACTION_DOWN:

            xDistance = yDistance = 0f;

            xLast = ev.getX();

            yLast = ev.getY();

            break;

        case MotionEvent.ACTION_MOVE:

            final float curX = ev.getX();

            final float curY = ev.getY(); 

            xDistance += Math.abs(curX - xLast);

            yDistance += Math.abs(curY - yLast);

            xLast = curX;

            yLast = curY; 

            if (xDistance > yDistance) {

                return false;

            }

        }

        return super.onInterceptTouchEvent(ev);

    }

}