Customize the scanning interface function using ZBar to scan QR code in iOS

I used ZXing to identify QR codes in Android before, and ZXing also has corresponding iOS versions. After understanding, ZBar is also a commonly used QR code recognition software, and provides SDKs for iOS and Android respectively. In the end, I chose ZBar for QR code recognition. Its annotations are clear and easy to use.

ZBar provides us with two ways of using it. One is to directly call the ZBarReaderViewController provided by ZBar to open a scanning interface, and the other is to use the ZBarReaderView provided by ZBar that can be embedded in other views. In actual projects, we are more likely to use the second method, which allows us to customize the interface more.

ZBar is also very simple to use. Import ZBarSDK into the project and import the header file in the file that needs to use ZBar.

#pragma mark Initialize the scan- (void)InitScan
{
  readview = [ZBarReaderView new];
   = [UIColor clearColor];
   = CGRectMake(0, 0, , );
   = self;
   = YES;//Use gesture zoom   = [UIColor redColor];
   = NO;// Display frame rate YES Display NO Not displayed  // = CGRectMake(0, 0, 1, 1);//The area of the image to be scanned  UIImage *hbImage=[UIImage imageNamed:@"pick_bg.png"];
  scanZomeBack=[[UIImageView alloc] initWithImage:hbImage];
  //Add a background image  CGRect mImagerect=CGRectMake((-200)/2.0, (-200)/2.0, 200, 200);
  [scanZomeBack setFrame:mImagerect];
   = [self getScanCrop:mImagerect readerViewBounds:];//The area of the image to be scanned  [readview addSubview:scanZomeBack];
  [readview addSubview:readLineView];
  [ addSubview:readview];
  [readview start];
}

#pragma mark Get scanned area-(CGRect)getScanCrop:(CGRect)rect readerViewBounds:(CGRect)readerViewBounds
{
  CGFloat x,y,width,height;
  x =  / ;
  y =  / ;
  width =  / ;
  height =  / ;
  return CGRectMake(x, y, width, height);
}

#pragma mark scan animation-(void)loopDrawLine
{
  CGRect rect = CGRectMake(, , , 2);
  if (readLineView) {
    [readLineView removeFromSuperview];
  }
  readLineView = [[UIImageView alloc] initWithFrame:rect];
  [readLineView setImage:[UIImage imageNamed:@""]];
  [UIView animateWithDuration:3.0
             delay: 0.0
            options: UIViewAnimationOptionCurveEaseIn
           animations:^{
             //Write the code to modify fream here              =CGRectMake(, +, , 2);
             [readLineView setAnimationRepeatCount:0];
           }
           completion:^(BOOL finished){
             if (!is_Anmotion) {
               [self loopDrawLine];
             }
           }];
  [readview addSubview:readLineView];
}

#pragma mark Get scan results- (void)readerView:(ZBarReaderView *)readerView didReadSymbols:(ZBarSymbolSet *)symbols fromImage:(UIImage *)image
{
  // Get the content of the scanned barcode  const zbar_symbol_t *symbol = zbar_symbol_set_first_symbol();
  NSString *symbolStr = [NSString stringWithUTF8String: zbar_symbol_get_data(symbol)];
  if (zbar_symbol_get_type(symbol) == ZBAR_QRCODE) {
    // Is it QR code?  }
  for (ZBarSymbol *symbol in symbols) {
    [sTxtField setText:];
    break;
  }
  [readerView stop];
  [readerView removeFromSuperview];
}

Github address:/ZBar/ZBar

The above is the customized scanning interface for scanning QR codes in iOS introduced by the editor. I hope it will be helpful to everyone. If you have any questions, please leave me a message and the editor will reply to everyone in time. Thank you very much for your support for my website!