• 這篇文章是對(duì)耳機(jī)狀態(tài)的介紹
• 網(wǎng)上大多數(shù)的方法都是基于ios6 我寫的則是比較新的版本
• 代碼如下,有什么問(wèn)題可以聯(lián)系我

1. 創(chuàng)建單例和通知

- (void)viewDidLoad {
    [super viewDidLoad];
    
    [[AVAudioSession sharedInstance] setActive:YES error:nil];//創(chuàng)建單例對(duì)象并且使其設(shè)置為活躍狀態(tài).

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(audioRouteChangeListenerCallback:)   name:AVAudioSessionRouteChangeNotification object:nil];//設(shè)置通知
}

2.通知方法的實(shí)現(xiàn)

- (void)audioRouteChangeListenerCallback:(NSNotification*)notification
{
    
    NSDictionary *interuptionDict = notification.userInfo;
    NSInteger routeChangeReason = [[interuptionDict valueForKey:AVAudioSessionRouteChangeReasonKey] integerValue];
    switch (routeChangeReason) {
        case AVAudioSessionRouteChangeReasonNewDeviceAvailable:
            NSLog(@"AVAudioSessionRouteChangeReasonNewDeviceAvailable");
            tipWithMessage(@"耳機(jī)插入");
            break;
        case AVAudioSessionRouteChangeReasonOldDeviceUnavailable:
            NSLog(@"AVAudioSessionRouteChangeReasonOldDeviceUnavailable");
            tipWithMessage(@"耳機(jī)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.移除通知和自定義提示窗口

-(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];
    });
}