监听滑动事件和消除与内嵌recyclerview冲突的Scrollview(惯性消失问题解决)

public class ObservableScrollView extends ScrollView {

private int downX;
private int downY;
private int mTouchSlop;

private ScrollViewListener scrollViewListener = null;

public ObservableScrollView(Context context) {
super(context);
mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();//
}

public ObservableScrollView(Context context, AttributeSet attrs) {
super(context, attrs);
mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();//
}

public ObservableScrollView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();//
}

public void setScrollViewListener(ScrollViewListener scrollViewListener) {
this.scrollViewListener = scrollViewListener;
}

@Override
protected void onScrollChanged(int x, int y, int oldx, int oldy) {
super.onScrollChanged(x, y, oldx, oldy);
if (scrollViewListener != null) {
scrollViewListener.onScrollChanged(this, x, y, oldx, oldy);
}
}

public interface ScrollViewListener {

void onScrollChanged(ObservableScrollView scrollView, int x, int y, int oldx, int oldy);

}

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
int action = ev.getAction();
switch (action) {
case MotionEvent.ACTION_DOWN:
downX = (int) ev.getRawX();
downY = (int) ev.getRawY();
break;
case MotionEvent.ACTION_MOVE:
int moveY = (int) ev.getRawY();
if (Math.abs(moveY - downY) > mTouchSlop) {
return true;
}
}
return super.onInterceptTouchEvent(ev);
}
}

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
int action = ev.getAction();
switch (action) {
case MotionEvent.ACTION_DOWN:
downX = (int) ev.getRawX();
downY = (int) ev.getRawY();
break;
case MotionEvent.ACTION_MOVE:
int moveY = (int) ev.getRawY();
if (Math.abs(moveY - downY) > mTouchSlop) {
return true;
}
}
return super.onInterceptTouchEvent(ev);
}