SYZBarDemo(IOS6及以上): 支持arm64,armv7,armv7s。可摄像头扫描，生成，从系统相册读取二维码。

###//打开摄像头并扫描

###{ //扫描二维码 SYQRCodeReaderController *qrcodevc = [[SYQRCodeReaderController alloc] init]; qrcodevc.SYQRCodeSuncessBlock = ^(SYQRCodeReaderController *aqrvc,NSString *qrString){ [aqrvc dismissViewControllerAnimated:NO completion:nil]; [self showAlertWithMsg:qrString]; }; qrcodevc.SYQRCodeCancleBlock = ^(SYQRCodeReaderController *aqrvc){ [aqrvc dismissViewControllerAnimated:NO completion:nil]; [self showAlertWithMsg:@"cancle~"]; }; qrcodevc.SYQRCodeFailBlock = ^(SYQRCodeReaderController *aqrvc){ [aqrvc dismissViewControllerAnimated:NO completion:nil]; [self showAlertWithMsg:@"fail~"]; }; [self presentViewController:qrcodevc animated:YES completion:nil]; ###}

###//生成二维码 ###- (IBAction)shengchengAction:(id)sender ###{ [self.xianBtn setImage:[QRCodeGenerator qrImageForString:@"https://github.com/reesun1130" imageSize:150] forState:UIControlStateNormal]; ###}

###//从相册读取二维码 ###- (IBAction)readAction:(id)sender ###{ if ([UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypePhotoLibrary]) { //[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleDefault animated:NO];

    UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
    //imagePickerController.navigationBar.tintColor = kNavBgColor;
    //imagePickerController.navigationBar.backgroundColor = kNavBgColor;
    
    imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    imagePickerController.delegate = self;
    //imagePickerController.allowsEditing = YES;
    
    [self presentViewController:imagePickerController animated:NO completion:nil];
}
else
{
    [self showAlertWithMsg:@"fail~"];
}

###}