Invert scrolling direction HorizontalScrollview

Question

On default if you swipe from left to right you scroll to the left, and vice versa.

But I want to invert this action. so if you swipe left to right the scrollview goes to the right. Is there a XML solution or do I have to do this in code?

Answer 1

I am pretty unsure about this but something along these lines:

1. Intercept touch event
2. Invert the X positions
3. Dispatch the new inverted touch event

Code (not really):

HorizontalScrollView hsv;
hsv.setOnTouchListener(new OnTouchListener() {

    @Override
    public boolean onTouch(View v, MotionEvent event) {
        // TODO Auto-generated method stub
        event.setLocation(-1*event.getX(), event.getY());
        hsv.dispatchTouchEvent(ev);
        return true;
    }
})