iPhone App中的视频速度答案

【问题标题】：Speed of Videos in iPhone AppiPhone App中的视频速度
【发布时间】：2012-04-20 01:57:40
【问题描述】：

由于某种原因，setcurrentPlayback 方法不起作用。感谢您的任何想法...

-(IBAction)abspielen:(id)sender {

  NSString *titleOfButton = [sender titleForState:UIControlStateNormal];
  NSBundle *bundle = [NSBundle mainBundle];
  NSString *moviePath = [bundle pathForResource:titleOfButton ofType:@"mov"];
  NSURL *movieURL = [ NSURL fileURLWithPath:moviePath];

  MPMoviePlayerController *themovie = 
        [[MPMoviePlayerController alloc]initWithContentURL: movieURL];   

  [themovie play];

  [themovie setCurrentPlaybackRate:2.f];  

  [themovie release];

  MPMoviePlayerViewController *moviePlayer = 
     [[MPMoviePlayerViewController alloc] initWithContentURL:movieURL];
  [self presentMoviePlayerViewControllerAnimated:moviePlayer];

  [moviePlayer release];


}

【问题讨论】：

标签： iphone performance frameworks media-player

【解决方案1】：

添加行

themovie.rate=2.f;

插入[themovie setCurrentPlaybackRate:2.f]; 行可能是它的工作....

有时在使用 HTML 博客时，这种方法不起作用，所以尝试给出 1 行

可能对你有用.... :-)

【讨论】：