- (void)viewDidLoad { [super viewDidLoad]; self.imageView.image = [self generateBarCode:@"1524829417" width:60 height:60]; self.imageView2.image = [self generateQRCode:@"1524829417" width:60 height:60];} - (UIImage *)generateQRCode:(NSString *)code width:(CGFloat)width height:(CGFloat)height { // 生成条形码图片 CIImage *qrcodeImage; NSData *data = [code dataUsingEncod...
1.公司做一个二维码条形码扫描的项目，遇到二维码扫描很好识别，条形码扫描有点慢解决办法：device放大焦距（完美解决） //获取摄像设备 AVCaptureDevice * device = [AVCaptureDevicedefaultDeviceWithMediaType:AVMediaTypeVideo]; //创建输入流 AVCaptureDeviceInput * input = [AVCaptureDeviceInputdeviceInputWithDevice:device error:nil]; //创建输出流 AVCaptureMetadataOutput * output = [[AVCaptureMe...