Question

我刚刚开发了一个iPhone音频流应用程序......现在它可以播放音频文件而没有任何问题。当iPhone网络从3G切换到WiFi时出现问题而反之亦然..我需要在网络切换时暂停流，但是当网络到来时我无法恢复播放。任何人都可以指出如何用代码处理这种情况？

此致 Syam S

Answer 1

您可以将应用设置为check Reachability status，然后在网络状态发生变化且网络无法访问时发送“暂停”NSNotification（同样，“播放”NSNotification当网络状态发生变化，现在网络再次可以访问时）：

[[Reachability sharedReachability] setNetworkStatusNotificationsEnabled:YES];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(reachabilityChanged:) name:@"kNetworkReachabilityChangedNotification" object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(pauseStreaming:) name:@"kPauseAudioStreamingIfPlaying" object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(pauseStreaming:) name:@"kPlayAudioStreamingIfPaused" object:nil];

- (void) reachabilityChanged:(id)sender {
  NetworkStatus reachabilityStatus = [[Reachability sharedReachability] internetConnectionStatus];
  if (reachabilityStatus == NotReachable)
     [[NSNotificationCenter defaultCenter] postNotificationName:@"kPauseAudioStreamingIfPlaying" object:nil];
  else 
     [[NSNotificationCenter defaultCenter] postNotificationName:@"kPlayAudioStreamingIfPaused" object:nil];
}

如何在iPhone中处理网络切换？

1 个答案: