判断touch事件的坐标是否在view中
private boolean inRangeOfView(View view, MotionEvent ev) {
int[] location = new int[2];
view.getLocationOnScreen(location);
int x = location[0];
int y = location[1];
if (ev.getX() < x || ev.getX() > (x + view.getWidth()) || ev.getY() < y || ev.getY() > (y + view.getHeight())) {
return false;
}
return true;
}