ios閃光燈調用

標籤：ios   照相   閃光燈   電筒   

引入

#import <AVFoundation/AVFoundation.h>

開啟閃光燈

AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];            if (![device hasTorch]) {//判斷是否有閃光燈                NSLog(@"no torch");            }else{                [device lockForConfiguration:nil];//鎖定閃光燈        [device setTorchMode: AVCaptureTorchModeOn];//開啟閃光燈            [device unlockForConfiguration];  //解除鎖定        }

關閉閃光燈

[device setTorchMode: AVCaptureTorchModeOff];