沒有背景音樂，而在玩的Xcode 4.2

我使用下面的代碼：我的聲音被放置在MYAPP /共享資源/ background_music.aiff沒有背景音樂，而在玩的Xcode 4.2

@synthesize window = _window; 
- (void)dealloc 
{ 
    [backgroundSound release]; 
    [_window release]; 
    [super dealloc]; 
} 

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
{ 
    // Override point for customization after application launch. 
    sleep(3); 
    //this variable can be named differently 

    NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/background_music.aiff",[[NSBundle mainBundle] resourcePath]]]; 
    NSError *error; 

    backgroundSound = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error]; 

    backgroundSound.numberOfLoops = -1; 
    //>> this will allow the file to //play an infinite number of times */ 

    return YES; 
} 



@interface AppDelegate : UIResponder <UIApplicationDelegate>{ 
    AVAudioPlayer *backgroundSound; 

} 

@property (strong, nonatomic) UIWindow *window; 
@end

有沒有錯誤，也沒有循環sound.Kindly告訴我發生了什麼事。

問候

來源

2012-08-27 Muhammad Umar

沒事做的問題，但在'didFinishLaunchingWithOptions'中使用'sleep（3）'會導致一些很大的問題。因爲如果你的應用程序啓動不夠快，iOS將會終止它。使用'default.png'覆蓋rootviewcontroller並在應用程序完全加載時將其刪除。 – rckoenes

@NSPostWhenIdle沒有聲音 –

記錄聲音的URL返回正確嗎？ –

確定我加入[background play];，它已經開始工作的罰款.....，這不是我在其中是繼教程中提到..

來源

2012-08-27 14:20:30

player = [[MPMoviePlayerController alloc] initWithContentURL:url]; 
    player.movieSourceType = MPMovieSourceTypeStreaming; 
    if(player.playbackState == MPMoviePlaybackStatePlaying) 
     [player stop]; 
    [player play];

來源

2012-08-27 13:23:51

沒有背景音樂，而在玩的Xcode 4.2

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