判断当前耳机是否插入
#import <AVFoundation/AVFoundation.h>
- (BOOL)isHeadsetPluggedIn
{
AVAudioSessionRouteDescription* route = [[AVAudioSession sharedInstance] currentRoute];
for (AVAudioSessionPortDescription* desc in [route outputs])
{
if ([[desc portType] isEqualToString:AVAudioSessionPortHeadphones])
return YES;
}
return NO;
}
监听耳机插入，拔出状态
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(audioRouteChangeListenerCallback:) name:AVAudioSessionRouteChangeNotification object:nil];
//回调
- (void)audioRouteChangeListenerCallback:(NSNotification*)notification
{
NSDictionary *interuptionDict = notification.userInfo;
NSInteger routeChangeReason = [[interuptionDict valueForKey:AVAudioSessionRouteChangeReasonKey] integerValue];
switch (routeChangeReason) {
case AVAudioSessionRouteChangeReasonNewDeviceAvailable:
NSLog(@"AVAudioSessionRouteChangeReasonNewDeviceAvailable");
NSLog(@"耳机插入");
break;
case AVAudioSessionRouteChangeReasonOldDeviceUnavailable:
NSLog(@"AVAudioSessionRouteChangeReasonOldDeviceUnavailable");
NSLog(@"耳机拔出，停止播放操作");
break;
case AVAudioSessionRouteChangeReasonCategoryChange:
// called at start - also when other audio wants to play
NSLog(@"AVAudioSessionRouteChangeReasonCategoryChange");
break;
}
}
