AVCaptureVideoPreviewLayer不会填满整个iPhone 4S屏幕 [英] AVCaptureVideoPreviewLayer doesn't fill up whole iPhone 4S Screen

问题描述

AVCaptureVideoPreviewLayer *avLayer = 
                [AVCaptureVideoPreviewLayer layerWithSession:session];
avLayer.frame = self.view.frame;
[self.view.layer addSublayer:avLayer];

我使用AVCaptureVideoPreviewLayer在视图上显示视频. 但是视频的视图并没有填满iPhone4的整个屏幕.(右侧和左侧的两个灰色栏)

I use AVCaptureVideoPreviewLayer to display video on the view. But the video's view didn't fill up the full iPhone4's screen.(two grey bar at the right&left side)

我希望视频全屏显示. 我该如何处理?非常感谢你！

I want the video fills up full screen. How can I deal with it? Thank you very much!

推荐答案

也许这可以解决?

CGRect bounds=view.layer.bounds;
avLayer.videoGravity = AVLayerVideoGravityResizeAspectFill;
avLayer.bounds=bounds;
avLayer.position=CGPointMake(CGRectGetMidX(bounds), CGRectGetMidY(bounds));

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