public boolean dispatchTouchEvent(MotionEvent ev) {

        switch (ev.getAction()) {

        case MotionEvent.ACTION_DOWN:

            startX = (int) ev.getX();

            startY = (int) ev.getY();

            // 请求父控件及祖宗控件不要拦截事件

            getParent().requestDisallowInterceptTouchEvent(true);

private int startY = -1;

public boolean onTouchEvent(MotionEvent ev) {

        switch (ev.getAction()) {

        case MotionEvent.ACTION_DOWN:

            startY = (int) ev.getY();

            break;

        case MotionEvent.ACTION_MOVE:

            if (startY == -1) {// 如果用户按住viewpager向下滑动, 会导致listview无法拿到ACTION_DOWN,

                                //因为此时事件会被交给父控件处理

                                // 此时要重新获取startY

                startY = (int) ev.getY();

            }