Android 拖动View View跟随手指一动

/**
 * 拖动View   配合onTouchListener使用
 * 设置View的布局属性，使得view随着手指移动 注意：view所在的布局必须使用RelativeLayout 而且不得设置居中等样式
 *
 * @param view
 * @param rawY
 */
private void moveViewWithFinger(View view, float rawY ,int  statusBar) {
    if (rawY> view.getHeight()){
        rawY = view.getHeight() + statusBar;
    }
    int left = 0;
    int top = (int) rawY - mProfile.getHeight();
    int width = view.getWidth();
    int height = top + view.getHeight();
    view.layout(left, top, width, height);
}