AVPlayer layer inside a view does not resize when UIView frame changes

Question

I have a `UIView` which contains an `AVPlayer` to show a video. When changing orientation, I need to change the size and location of the video. I'm not very experienced with resizing layers, so I'm having problems making the video resize. I start by creating the `AVPlayer` and adding its player to my videoHolderView's layer: ``` NSURL *videoURL = [NSURL fileURLWithPath:videoPath]; self.avPlayer = [AVPlayer playerWithURL:videoURL]; AVPlayerLayer* playerLayer = [AVPlayerLayer playerLayerWithPlayer:self.avPlayer]; playerLayer.frame = videoHolderView.bounds; playerLayer.videoGravity = AVLayerVideoGravityResizeAspect; playerLayer.needsDisplayOnBoundsChange = YES; [videoHolderView.layer addSublayer:playerLayer]; videoHolderView.layer.needsDisplayOnBoundsChange = YES; ``` Then, at a later point, I change the size and location of the videoHolderView's frame: ``` [videoHolderView setFrame:CGRectMake(0, 0, 768, 502)]; ``` At this point, I need the avPlayer to resize to these same dimension. Thi…

Accepted Answer

Converting @Suran's solution to Swift:

First, create a class inheriting UIView where you override only 1 variable:

```
import UIKit
import AVFoundation

class AVPlayerView: UIView {
    override class var layerClass: AnyClass {
        return AVPlayerLayer.self
    }
}
```

Then add a simple UIView using the interface builder and change its class to the one you just created: AVPlayerView

Then, make an outlet for that view. Call it avPlayerView

```
@IBOutlet weak var avPlayerView: AVPlayerView!
```

Now, you can use that view inside your viewcontroller and access its avlayer like this:

```
let avPlayer = AVPlayer(url: video)
let castLayer = avPlayerView.layer as! AVPlayerLayer
castLayer.player = avPlayer
avPlayer.play()
```

The layer will now follow the constraints just like a regular layer would do. No need to manually change bounds or sizes.

AVPlayer layer inside a view does not resize when UIView frame changes

Solution

Problem