SGQRCodeiOS 二维码处理工具

// 创建二维码扫描类
scanCode = [SGScanCode scanCode];

// 预览视图，必须设置
scanCode.preview = self.view;

// 遵循 SGScanCodeDelegate
scanCode.delegate = self;

// 遵循 SGScanCodeSampleBufferDelegate
scanCode.sampleBufferDelegate = self;

// 开启扫描
[scanCode startRunning];

// 结束扫描
[scanCode stopRunning];

// SGScanCodeDelegate
- (void)scanCode:(SGScanCode *)scanCode result:(NSString *)result {
    <#code#>
}

// SGScanCodeSampleBufferDelegate
- (void)scanCode:(SGScanCode *)scanCode brightness:(CGFloat)brightness {
    <#code#>
}

[scanCode readQRCode:image completion:^(NSString *result) {
    <#code#>
}];

// 普通二维码生成方法
[SGGenerateQRCode generateQRCodeWithData:data size:size];

// 带 logo 的二维码生成方法
[SGGenerateQRCode generateQRCodeWithData:data size:size logoImage:logoImage ratio:ratio];