检测插入＆amp;使用原生iOS 7 SDK在耳机插孔上拔掉未插入的事件

Question

我正在尝试找到一种方法来检测Native iOS SDK中耳机插孔上的插入/拔出事件，特别是在最新版本（iOS 7）上。是否有办法在此版本中执行此操作？

Answer 1

试试这个：

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(routeChanged:) name:AVAudioSessionRouteChangeNotification object:nil];


- (void)routeChanged:(NSNotification *)notification {
    NSNumber *reason = [notification.userInfo objectForKey:AVAudioSessionRouteChangeReasonKey];

    if ([reason unsignedIntegerValue] == AVAudioSessionRouteChangeReasonNewDeviceAvailable) {

    } else if ([reason unsignedIntegerValue] == AVAudioSessionRouteChangeReasonOldDeviceUnavailable) {

    }
}