打开或者关闭iphone设备闪关灯的oc代码

通过以下代码可以调用闪光灯的打开和关闭状态。//打开 -(void)turnOnLed {   AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];   if ([device hasTorch]) {   [device lockForConfiguration:nil];   [device setTorchMode: AVCaptureTorchModeOn];   [device unlockForConfiguration];   }   } //关闭 -(void)turnOffLed {   AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];   if ([device hasTorch]) {   [device lockForConfiguration:nil];   [device setTorchMode: AVCaptureTorchModeOff];   [device unlockForConfiguration];   }   } 

转载于:https://www.cnblogs.com/Sunnyheart/p/5314789.html