iOS持續振動 想停就停

最近要做一個項目,需要持續響鈴並振動,知道有私有api可以使用,但無奈要上線,為了保險起見,果斷放棄,在網上找了一個方法可以實現如下:

在播放振動的代碼前面注冊寫下面一句代碼:

 AudioServicesAddSystemSoundCompletion(kSystemSoundID_Vibrate, NULL, NULL, soundCompleteCallback, NULL);  

其中soundCompleteCallback為播放系統振動或者聲音后的回調,可以在里面繼續播放振動實現持續振動的功能如下:

void soundCompleteCallback(SystemSoundID sound,voidvoid * clientData) {  
    AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);  //震動  
    AudioServicesPlaySystemSound(sound);  
}  

 但是問題來了,如何停止,其實之前我參考了別人做的,是直接調用如下代碼停止:

 AudioServicesRemoveSystemSoundCompletion(sound);
 AudioServicesDisposeSystemSoundID(sound); AudioServicesRemoveSystemSoundCompletion(kSystemSoundID_Vibrate);
 AudioServicesDisposeSystemSoundID(kSystemSoundID_Vibrate);

 但我遇到了個奇葩的問題,是在ios10上測試,其它版本我沒有手機沒有進行測試,問題是我發現調用停止方法后,並沒有立即停止,停止的時間和你播放振動的時間成正比,振動時間越長,調用停止后,還要繼續振動一段時間才停止,讓人很頭疼所以我進行了一下改造后,實現了需要的功能,用計時器實現,僅供初學者參考,大神勿噴,直接拷貝工程可用:

@interface ViewController ()
{
    SystemSoundID sound;
}
//振動計時器
@property (nonatomic,strong)NSTimer *_vibrationTimer;
@end

@implementation ViewController
@synthesize _vibrationTimer;

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.

}
//開始響鈴及振動
-(IBAction)startShakeSound:(id)sender{
    
    NSString *path = [[NSBundle mainBundle] pathForResource:@"2125" ofType:@"wav"];
    AudioServicesCreateSystemSoundID((__bridge CFURLRef)[NSURL fileURLWithPath:path], &sound);
    AudioServicesAddSystemSoundCompletion(sound, NULL, NULL, soundCompleteCallback, NULL);
    AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
    AudioServicesPlaySystemSound(sound);
    
    
    /**
     初始化計時器  每一秒振動一次

     @param playkSystemSound 振動方法
     @return
     */
    _vibrationTimer = [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(playkSystemSound) userInfo:nil repeats:YES];
}
//振動
- (void)playkSystemSound{
    AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
}
//停止響鈴及振動
-(IBAction)stopShakeSound:(id)sender{
    
    [_vibrationTimer invalidate];
    AudioServicesRemoveSystemSoundCompletion(sound);
    AudioServicesDisposeSystemSoundID(sound);
    
}
//響鈴回調方法
void soundCompleteCallback(SystemSoundID sound,void * clientData) {
    AudioServicesPlaySystemSound(sound);
}

其中鈴聲需要替換掉,或者去掉響鈴 Demo:https://github.com/wtfubj/ContinuousVibrationDemo.git