无法在iOS 4中播放视频 [英] unable to play video in iOS 4

问题描述

我已编写代码在iPhone OS 3.1.3中播放视频，视频播放正常。

I have written code to play video in iPhone OS 3.1.3 and video is playing fine.

但是当我尝试使用相同代码播放视频时视频无法在iOS 4中播放。

but when i am trying to play video with the same code then video is not playing in iOS 4.

我知道iOS 4的媒体播放器框架已更改。有没有办法在不准备单独的操作系统上播放视频二进制??

I know that Media player framework is changed for iOS 4. Is there any way i can play the video on different OS without preparing separate binary??

推荐答案

首先检查您是否在OS 3.2或更高版本。如果是，请以新方式创建电影播放器​​：

First check if you are on OS 3.2 or above. If yes, create a movie player the new way:

if (NSClassFromString(@"UISplitViewController") != nil) {
  MPMoviePlayerViewController *mp = [[MPMoviePlayerViewController alloc] initWithContentURL:yourURL];
  [[mp moviePlayer] prepareToPlay];
  [[mp moviePlayer] setShouldAutoplay:YES];
  [[mp moviePlayer] setControlStyle:2];
  [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(videoPlayBackDidFinish:) name:MPMoviePlayerPlaybackDidFinishNotification object:nil];
  [self presentMoviePlayerViewControllerAnimated:mp];
} else {
  moviePlayer=[[MPMoviePlayerController alloc] initWithContentURL:yourURL];
  [self playMovieTheOldWay:moviePlayer];
}

您可以关闭这样的新电影播放器​​：

You can close the new movie player like this:

-(void)videoPlayBackDidFinish:(NSNotification*)notification
{       
  [self dismissMoviePlayerViewControllerAnimated];
}

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