如果父视图为ParentView包含一个Button,如果再ParentView上添加子视图ChildView,且ChildView盖住了Button,那么Button就得到不响应了,为了让Button响应,可以设置ChildView的userInteractionEnabled = NO 转载于:https://www.cnblogs.com/iosdanran/p/4983739.html