来源:蜘蛛抓取(WebSpider)
时间:2016-12-09 21:42
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oppo手机怎么开闪光灯
objective-c 打开ios设备的闪光灯代码 - 为程序员服务
为程序员服务
打开ios设备的闪光灯代码
- (void) turnTorchOn: (bool) on {
Class captureDeviceClass = NSClassFromString(@&AVCaptureDevice&);
if (captureDeviceClass != nil) {
AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
if ([device hasTorch] && [device hasFlash]){
[device lockForConfiguration:nil];
[device setTorchMode:AVCaptureTorchModeOn];
[device setFlashMode:AVCaptureFlashModeOn];
torchIsOn = YES;
[device setTorchMode:AVCaptureTorchModeOff];
[device setFlashMode:AVCaptureFlashModeOff];
torchIsOn = NO;
[device unlockForConfiguration];
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