- 这篇文章是对耳机状态的介绍
- 网上大多数的方法都是基于ios6 我写的则是比较新的版本
- 代码如下,有什么问题可以联系我
1. 创建单例和通知
- (void)viewDidLoad {
[super viewDidLoad];
[[AVAudioSession sharedInstance] setActive:YES error:nil];//创建单例对象并且使其设置为活跃状态.
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(audioRouteChangeListenerCallback:) name:AVAudioSessionRouteChangeNotification object:nil];//设置通知
}
2.通知方法的实现
- (void)audioRouteChangeListenerCallback:(NSNotification*)notification
{
NSDictionary *interuptionDict = notification.userInfo;
NSInteger routeChangeReason = [[interuptionDict valueForKey:AVAudioSessionRouteChangeReasonKey] integerValue];
switch (routeChangeReason) {
case AVAudioSessionRouteChangeReasonNewDeviceAvailable:
NSLog(@"AVAudioSessionRouteChangeReasonNewDeviceAvailable");
tipWithMessage(@"耳机插入");
break;
case AVAudioSessionRouteChangeReasonOldDeviceUnavailable:
NSLog(@"AVAudioSessionRouteChangeReasonOldDeviceUnavailable");
tipWithMessage(@"耳机拔出，停止播放操作");
break;
case AVAudioSessionRouteChangeReasonCategoryChange:
// called at start - also when other audio wants to play
tipWithMessage(@"AVAudioSessionRouteChangeReasonCategoryChange");
break;
}
}
3.移除通知和自定义提示窗口
-(void)dealloc{
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
//自定提醒窗口
NS_INLINE void tipWithMessage(NSString *message){
dispatch_async(dispatch_get_main_queue(), ^{
UIAlertView *alerView = [[UIAlertView alloc] initWithTitle:@"提示" message:message delegate:nil cancelButtonTitle:nil otherButtonTitles:nil, nil];
[alerView show];
[alerView performSelector:@selector(dismissWithClickedButtonIndex:animated:) withObject:@[@0, @1] afterDelay:0.9];
});
}
