iOS 流媒体背景音频

Question

以下是仅用于获取音频流的代码:

    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:stringURL]];
    [UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
    connectionPlay = [[NSURLConnection alloc] initWithRequest:request delegate:self];
    NSError *playerError;
    player = [[AVAudioPlayer alloc] initWithData:streamData error:&playerError];
    player.numberOfLoops = 0;
    player.volume = 1.0f;
    [player prepareToPlay];

    if (playerError) {
        NSLog(@"audio player error: %@", [playerError localizedDescription]);
    }
    if (player == nil)
        NSLog(@"%@", [playerError description]);
    else
        [player play];

当我尝试将应用程序置于后台模式时，我会抓紧时间玩。我已进入 .plist 并输入“必需的背景模式，项目 0，应用程序播放音频”。这并没有解决我的问题。

我开始放置这个:

[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback
                                       error:nil];
[[AVAudioSession sharedInstance] setActive:YES
                                     error:nil];
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];

内部

- (void)applicationWillResignActive:(UIApplication *)application

- (void)applicationDidEnterBackground:(UIApplication *)application

和

主 ViewController 中的 viewDidLoad 内部。以及在[玩家prepareToPlay]之后。

我不确定问题是否出在我没有设置正确的后台设置或应用程序切断了连接。基本上，我不确定我错过了什么。

我一直在看:

http://developer.apple.com/library/ios/#documentation/AVFoundation/Reference/AVAudioSession_ClassReference/Reference/Reference.html

和

https://developer.apple.com/library/ios/#documentation/iphone/conceptual/iphoneosprogrammingguide/Introduction/Introduction.html

编辑:有人吗？

Answer 1

我不知道它是什么，但我只是将所有代码转移到一个新项目，添加了此代码

 - (void)applicationWillResignActive:(UIApplication *)application
{

    [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback
                                           error:nil];
    [[AVAudioSession sharedInstance] setActive:YES
                                         error:nil];
    [[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
    // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}

和plist设置，它似乎可以在手机上运行，​​但不能在模拟器上运行..