垂直Scrollview内的水平Recyclerview

Question

I have a situation where I have a Recyclerview which slides horizontally inside a ScrollView. Now the situation is when I do a horizontal swipe on the Recyclerview, instead of scrolling the cardviews inside Recyclerview, it scrolls the screen up, which disturbs the user experience.

Any solution or approach to avoid vertical scrolling when the person is doing a horizontal swipe on Recyclerview?

Answer 1

This problem is occurred due to scroll_conflicts As said by Frank. But I understand sometimes we need to go beyond Design guidelines. By the way you can disallow ScrollView (I am taking it as parent of RecyclerView) to intercept any touch events. Following is the code sample for this.

mRecyclerView.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.
                            v.getParent().requestDisallowInterceptTouchEvent(true);
                            break;
                        case MotionEvent.ACTION_UP:
                            //Allow ScrollView to intercept touch events once again.
                            v.getParent().requestDisallowInterceptTouchEvent(false);
                            break;
                    }
                    // Handle RecyclerView touch events.
                    v.onTouchEvent(event);
                    return true;
                }
            });

Hope this will work on your problem.But first check you LayoutManager. I think there is no need of above code if you explicitly use LinearLayoutManager with HORIZONTAL layout.

Answer 2

The solution is actually quite simple. put the horizontal RecycleView as an item in a RecycleView, instead of using a scrollview. then when you scroll it behaves as you want it to. Thats what I did and it works perfectly