在ZBar掃描儀上帶相機的矩形？

我們如何在紅外激光掃描條形碼掃描的相機上帶上矩形？？有沒有內置的屬性我嘗試以下操作：在ZBar掃描儀上帶相機的矩形？

reader.readerView.tracksSymbols = YES; 
reader.readerView.trackingColor = [UIColor redColor]; 

[reader setShowsZBarControls:NO]; 
reader.readerView.tracksSymbols = TRUE; 
scanner.accessibilityFrame = CGRectMake(100, 100, 200, 300);

來源

2012-06-15 senthil.Freelancer

你嘗試

reader.cameraOverlayView = overLayView;

？即cameraOverlayView財產UIImagePickerController。在那裏你可以設置你想要的東西。希望這是你想要的。

來源

2012-06-15 06:46:11 Ananth

添加rectange爲您的相機view.Here上的覆蓋是代碼：

- (IBAction) scanButtonTapped 
    { 
     // ADD: present a barcode reader that scans from the camera feed 
     ZBarReaderViewController *reader = [ZBarReaderViewController new]; 
     reader.readerDelegate = self; 
     reader.supportedOrientationsMask = ZBarOrientationMaskAll; 

     ZBarImageScanner *scanner = reader.scanner; 
     reader.showsZBarControls = NO; 

     [scanner setSymbology: ZBAR_I25 
         config: ZBAR_CFG_ENABLE 
          to: 0]; 
     // present and release the controller 
     [self presentModalViewController: reader 
           animated: YES]; 
     reader.cameraOverlayView = [self CommomOverlay]; 
     [reader release]; 
    } 


-(UIView*)CommomOverlay{ 
     UIView* view = [[UIView alloc] initWithFrame:CGRectMake(0,0,320,480)]; 
     UIImageView *FrameImg = [[UIImageView alloc] initWithFrame:CGRectMake(70,160,203,180)]; 
     [FrameImg setImage:[UIImage imageNamed:@"overlaygraphic.png"]]; 
     [view addSubview:FrameImg]; 
     return view; 
    }

希望這將幫助你.. :)

來源

2012-06-15 07:26:07

這正確顯示矩形的我，但它不實際上與掃描區域相匹配。在掃描代碼之前，我必須將相機移動到覆蓋邊界之外的代碼附近。 –

在ZBar掃描儀上帶相機的矩形？

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