I can see some questions about "ListView inside ScrollView" issue. And I know, that we shouldn't do such nesting, just because both components have their own scrolling and Google said so(I've read that it is useless thing). But in my current project I need such behavior: if listview can scroll - it is scrolling, if not(top or bottom border of listview) - scrollview is scrolling.
So, I've wrote such code:

```
public static void smartScroll(final ScrollView scroll, final ListView list){
        scroll.requestDisallowInterceptTouchEvent(true);
        list.setOnTouchListener(new OnTouchListener() {
            private boolean isListTop = false, isListBottom = false;
            private float delta = 0, oldY = 0;
            @Override
            public boolean onTouch(View v, MotionEvent event) {             
                switch (event.getAction()) {
                case MotionEvent.ACTION_DOWN:
                    oldY = event.getY();
                    break;
                case MotionEvent.ACTION_UP:
                    delta = 0;
                    break;
                case MotionEvent.ACTION_MOVE:
                    delta = event.getY() - oldY;
                    oldY = event.getY();

                    isListTop = false;
                    isListBottom = false;

                    View first = list.getChildAt(0);
                    View last = list.getChildAt(list.getChildCount()-1);                
                    if(first != null && list.getFirstVisiblePosition() == 0 && first.getTop() == 0 && delta > 0.0f){
                        isListTop = true;
                    }
                    if(last != null && list.getLastVisiblePosition() == list.getCount()-1 && last.getBottom() <= list.getHeight() && delta < 0.0f){
                        isListBottom = true;
                    }

                    if( (isListTop && delta > 0.0f) || (isListBottom && delta < 0.0f) ){
                        scroll.post(new Runnable() {
                            public void run() {
                                scroll.smoothScrollBy(0, -(int)delta);
                            }
                        });
                    }

                    break;
                default: break;
                }                   
                scroll.requestDisallowInterceptTouchEvent(true);
                return false;
            }
        });
    }

```

And it works, at least on target API 8. But there are some scroll glitches(unnatural jumps). I think, the cause in scroll.smoothScrollBy(0, -(int)delta); Have anybody thoughts, how to improve scrollview scrolling :)? It is called often(on move) and on post, maybe that is the cause?