如何检查设备是否通过airplay连接？

Question

我有问题要检查我是否连接到airplay设备,以及是否通过镜像或流连接.但检查需要在视频开始之前完成.

如果视频已经启动,airPlayVideoActive仅返回YES.

Answer 1

这是我的解决方案

- (BOOL)isAudioSessionUsingAirplayOutputRoute
{
    /**
     * I found no other way to check if there is a connection to an airplay device
     * airPlayVideoActive is NO as long as the video hasn't started 
     * and this method is true as soon as the device is connected to an airplay device
     */
    AVAudioSession* audioSession = [AVAudioSession sharedInstance];
    AVAudioSessionRouteDescription* currentRoute = audioSession.currentRoute;
    for (AVAudioSessionPortDescription* outputPort in currentRoute.outputs){
        if ([outputPort.portType isEqualToString:AVAudioSessionPortAirPlay])
            return YES;
    }
    return NO;
}

要检查airplay连接是否镜像,您只需检查屏幕计数.

if ([[UIScreen screens] count] < 2)) {
    //streaming
}
else {
    //mirroring
}

如果有更好的解决方案,请告诉我