ios 耳机线控

当你使用iphone的时候听音乐的时候，播放器在后台运行的时候，你仍然可以通过耳机来进行操作，完成曲目切换，快进，快退等功能！

当然你的程序不一定是播放器应用，但是我们仍然可以让它具有这个功能，让用户通过耳机进行一些比较简单常用的操作，这样是不是很酷呢？

具体的怎么实现呢？废话不多说，我们直奔主题：

1，允许接受Remote事件

[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];

[self becomeFirstResponder];

2，处理输入事件：

- (void) remoteControlReceivedWithEvent: (UIEvent *) receivedEvent {

if (receivedEvent.type == UIEventTypeRemoteControl)

{

switch (receivedEvent.subtype) {

case UIEventSubtypeRemoteControlTogglePlayPause:

//do something

break;

case UIEventSubtypeRemoteControlPreviousTrack:

//do something

break;

case UIEventSubtypeRemoteControlNextTrack:

//do something

break;

default:

break;

}

}

}

3,在使用完毕的时候停止接受Remote事件

[[UIApplication sharedApplication] endReceivingRemoteControlEvents];

[self resignFirstResponder];

4，附上完整的事件类型代码,供大家使用

typedef enum {

UIEventSubtypeNone = 0,

UIEventSubtypeMotionShake = 1,

UIEventSubtypeRemoteControlPlay = 100,

UIEventSubtypeRemoteControlPause = 101,

UIEventSubtypeRemoteControlStop = 102,

UIEventSubtypeRemoteControlTogglePlayPause = 103,

UIEventSubtypeRemoteControlNextTrack = 104,

UIEventSubtypeRemoteControlPreviousTrack = 105,

UIEventSubtypeRemoteControlBeginSeekingBackward = 106,

UIEventSubtypeRemoteControlEndSeekingBackward = 107,

UIEventSubtypeRemoteControlBeginSeekingForward = 108,

UIEventSubtypeRemoteControlEndSeekingForward = 109,

} UIEventSubtype;

补充，转载：

最近发现也有人在坛子里发帖求获取ios耳机线控事件，下面给大家分享一下代码，

-(BOOL)canBecomeFirstResponder{

NSLog(@"_____%s_____",__FUNCTION__);

return YES;

}

//received remote event

-(void)remoteControlReceivedWithEvent:(UIEvent *)event{

NSLog(@"event tyipe:::%d subtype:::%d",event.type,event.subtype);

//type==2 subtype==单击暂停键：103，双击暂停键104

if (event.type == UIEventTypeRemoteControl) {

switch (event.subtype) {

case UIEventSubtypeRemoteControlPlay:{

NSLog(@"play---------");

}break;

case UIEventSubtypeRemoteControlPause:{

NSLog(@"Pause---------");

}break;

case UIEventSubtypeRemoteControlStop:{

NSLog(@"Stop---------");

}break;

case UIEventSubtypeRemoteControlTogglePlayPause:{

//单击暂停键：103

NSLog(@"单击暂停键：103");

}break;

case UIEventSubtypeRemoteControlNextTrack:{

//双击暂停键：104

NSLog(@"双击暂停键：104");

}break;

case UIEventSubtypeRemoteControlPreviousTrack:{

NSLog(@"三击暂停键：105");

}break;

case UIEventSubtypeRemoteControlBeginSeekingForward:{

NSLog(@"单击，再按下不放：108");

}break;

case UIEventSubtypeRemoteControlEndSeekingForward:{

NSLog(@"单击，再按下不放，松开时：109");

}break;

default:

break;

}

}

}

把上面代码加进去就能获取耳机线控的各个点击事件，嘀嘀打车之前版本中有一个耳机抢单的功能，就是这么实现的