如何在iPhone SDK 4.0中播放視頻？

Question

我在iphone通過使用此代碼的電影播放器​​打開1秒鐘，然後自動關閉，沒有播放文件播放的視頻通過使用此代碼

-(IBAction)btnNew_clicked:(id)sender { 

NSURL *url = [NSURL URLWithString:@"http://www.businessfactors.de/bfcms/images/stories/videos/defaultscreenvideos.mp4"]; 
MPMoviePlayerViewController *mp = [[MPMoviePlayerViewController alloc] initWithContentURL:url]; 
[[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];} 

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

。

我檢查了視頻文件是正確的，但它不是在iphone SDK 4.0中播放。

在此先感謝。

Answer 1

請參閱本question-

Playing a video file from server in an Iphone app

trry了下面的代碼，不要忘記添加MediaPlayer.framework，必須導入<的MediaPlayer/MediaPlayer.h >

- (void)viewDidLoad { 
    [super viewDidLoad]; 

    NSURL *url = [NSURL URLWithString:@"http://www.businessfactors.de/bfcms/images/stories/videos/defaultscreenvideos.mp4"]; 
    MPMoviePlayerController *player =[[MPMoviePlayerController alloc] initWithContentURL: url]; 
    [[player view] setFrame: [self.view bounds]]; // frame must match parent view 
    [self.view addSubview: [player view]]; 
    [player play]; 

}