PiP AVPlayerViewController issue iPhone

Question

我正在学习AVFoundation，当我看到一个以PiP模式播放的youtube视频时，我想创建一个类似于Whatsapp的东西。出于这个原因，我创建了这样的视图控制器：

#import "ViewController.h"
#import <AVFoundation/AVFoundation.h>
#import <AVKit/AVKit.h>
@interface ViewController () <AVPictureInPictureControllerDelegate>
@property (strong, nonatomic) AVPlayerViewController *playerViewController;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
NSURL *url = [[NSURL alloc] initWithString:@"https://www.rmp-streaming.com/media/bbb-360p.mp4"];
AVPlayerItem* playerItem = [AVPlayerItem playerItemWithURL:url];
AVPlayer* playVideo = [[AVPlayer alloc] initWithPlayerItem:playerItem];
self.playerViewController = [[AVPlayerViewController alloc] init];
self.playerViewController.player = playVideo;
self.playerViewController.player.volume = 0;
self.playerViewController.view.frame = self.view.bounds;
[self.view addSubview:self.playerViewController.view];
self.playerViewController.showsPlaybackControls = YES;
self.playerViewController.allowsPictureInPicturePlayback = YES;
self.playerViewController.videoGravity = AVLayerVideoGravityResizeAspect;
[playVideo play];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

@end

在AppDelegate中，我这样做了：

NSError *errore = nil;
AVAudioSession *sessioneAudio = [AVAudioSession sharedInstance];
[sessioneAudio setActive:YES error:&errore];
[sessioneAudio setCategory:AVAudioSessionCategoryPlayback error:&errore];

我在项目的功能中启用了音频、AirPlay和画中画背景模式。

我的问题是：

如果我在iPad设备上运行应用程序，我会看到PiP按钮，我可以启用PiP模式。若我在iPhone设备上运行应用程序，我看不到PiP按钮，但我不明白为什么。

Answer 1

我已经实现了在iPhone上启用PiP模式的PiPhone框架。我认为它可以解决你的问题。

Answer 2

1. 对于常规功能中的第一项，请选择背景音频、AirPlay和PiP

2. 将我的代码粘贴到Objective-C 上

   NSString*path=[[NSBundle mainBundle]pathForResource:@"；视频"；类型：@"；mp4"]；NSURL*url=[NSURL文件URLWithPath:path]；自己AVPlayer=[AVPlayer playerWithURL:url]；self.layer=[AVPlayerLayer playerLayerWithPlayer:_AVPlayer]；

   [self.layer setFrame:CGRectMake(0，0，self.view.frame.size.width-100，self.view.frame.size.height-72(]；[self.layer setVideoGravity：AVLayerVideoGravity调整大小]；[self.view.layer addSublayer:_layer]；

   [_AVPlayer play]；

3. 检查Pip是否支持当前设备

   -(无效(setupSuport{if([AVPictureInPictureController is PictureInPictureSupported](｛

   _AVPictureInPictureController =  [[AVPictureInPictureController alloc] initWithPlayerLayer:_layer];
   _AVPictureInPictureController.delegate = self;
   }
   else
   {
   // not supported PIP start button desable here
   }
   

   }

4. PiP 的作用

-(IBAction(actionPIPStart:(UIButton*(sender｛

if (_AVPictureInPictureController.pictureInPictureActive) {
[_AVPictureInPictureController stopPictureInPicture];
NSLog(@"no PIP!");
}
else {
[_AVPictureInPictureController startPictureInPicture];
NSLog(@"PIP!");
}

}