avplayer在containerView中的位置不应该是T_T(the position of the avplayer in a containerView is not what it should be T_T)

 我正在研究Avplayer。 我有一个用于Avplayer的containerView，我设置了Avplayer的框架，如下所示： 
 
CGRect frame = CGRectMake(0, 0, 200, 400);
playerLayer.frame=frame;
[containerView.layer addSublayer:playerLayer];
 
 但是Avplayer并不是应该是T_T 

I'm working on the Avplayer . I've got a containerView for the Avplayer and i set the frame of the Avplayer like this:
 
CGRect frame = CGRectMake(0, 0, 200, 400);
playerLayer.frame=frame;
[containerView.layer addSublayer:playerLayer];
 
But the Avplayer is not at the posiotion it should be T_T

原文：https://stackoverflow.com/questions/38500284