Ios6 MPMoviePlayerController从照片库加载视频，播放速度如此之快

//CameraViewController.h

@接口摄像机控制器：UIViewController{

UIImagePickerController *_picker;

}

@属性（强，非原子）IBUIImageView*imageView

@财产（非原子，保留）MPMoviePlayerController*播放器

• （iAction）loadImage：（UIButton*）发送器

//CameraViewController.m

@接口CameraViewController（）

@属性（强、非原子）MPMoviePlayerController*playView

@结束

@CameraViewController的实现

@综合imageView=\u imageView

@综合玩家=_玩家

@综合播放视图=_播放视图

• （无效）viewDidLoad

{

}

• （无效）未收到记忆警告

{

}

• （iAction）加载图像：（UIButton*）发送器{
  _picker.delegate=self
  _picker.sourceType=UIImagePickerController源类型PhotoLibrary
  NSArray*mediaTypes=[NSArray arrayWithObjects:（NSString*）kUTTypeImage，（NSString*）kUTTypeMovie，无]
  _picker.mediaTypes=mediaTypes
  [self-presentViewController:picker已设置动画：是完成：空]

}

pragma标记-图像选择器委托

• （void）imagePickerController:（UIImagePickerController*）picker未使用信息完成PickingMediaWithInfo:（NSDictionary*）信息{
  UIImage*image=nil
  NSURL*imageURL=nil
  imageURL=[info-valueForKey:UIImagePickerController-DiaUrl]
  if（imageURL==nil）{
  }
  否则{
  self.player=[[MPMoviePlayerController alloc]initWithContentURL:imageURL]

      [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(movieFinishedCallback:) name:MPMoviePlayerPlaybackDidFinishNotification object:self.player];
  
      self.player.view.frame = CGRectMake(10.0, 10.0, 200.0, 200.0);
  
      self.player.view.backgroundColor = [UIColor clearColor];
  
      self.player.movieSourceType = MPMovieSourceTypeFile;
  
      [self.player prepareToPlay];
  
      [self.view addSubview:self.player.view];
  
      [self.player play];
  

  }
  [picker DismissViewControllerInitiated:是完成：NULL]

}

• （无效）ImagePickerController IDCancel:（UIImagePickerController*）选择器{
  [picker DismissViewControllerInitiated:是完成：NULL]

}

pragma标记-用户定义

• （作废）电影完成回扣：（NSNotification*）通知{
  mpmovieplayervewcontroller*player=[通知对象]
  [[NSNotificationCenter defaultCenter]移除观察者：self 名称：MPMoviePlayerPlaybackDidFinishNotification对象：播放器]
  [player.view从SuperView移除]

}

movieFinishedCallback:方法将立即调用，因此视频无法完全播放

如何解决这个问题？

苹果建议：

---

使用AVPlayer播放iPod库中的视频、摄像头滚动或通过iTunes文件共享。

好的，您能帮我吗？

[super didReceiveMemoryWarning];

image = [info valueForKey:UIImagePickerControllerEditedImage];

if (image == nil) {

    image = [info valueForKey:UIImagePickerControllerOriginalImage];

    _imageView.image = image;

}

else {

}

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(movieFinishedCallback:) name:MPMoviePlayerPlaybackDidFinishNotification object:self.player];

    self.player.view.frame = CGRectMake(10.0, 10.0, 200.0, 200.0);

    self.player.view.backgroundColor = [UIColor clearColor];

    self.player.movieSourceType = MPMovieSourceTypeFile;

    [self.player prepareToPlay];

    [self.view addSubview:self.player.view];

    [self.player play];