ScannerApp

Barcode and QR Code Scanner Demo App

Dependencies

zxing

Reading QR Codes

URL: http://code.google.com/p/zxing
License: Apache License 2.0 (https://code.google.com/p/zxing/wiki/LicenseQuestions)
Included as a submodule

Tesseract

OCR library for scanning business cards

URL: https://github.com/ldiqual/tesseract-ios
License: See license file (library is free to use)

Tesserat iOS Wrapper

Objective-C wrapper for Tesseract OCR.

URL: https://github.com/ldiqual/tesseract-ios
License: MIT

zxing landscape

For supporting landscape orientation I add 'didRotateFromInterfaceOrientation' in the ZXingWidgetController.m file. Here the 'self.prevLayer' will be rotated.

The method:

//see http://stackoverflow.com/a/9689874/470964
-(void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation {

    float angle;
    switch ([UIApplication sharedApplication].statusBarOrientation) {
        case UIInterfaceOrientationPortrait:
            angle = 0;
            break;
        
        case UIInterfaceOrientationPortraitUpsideDown:
            angle = M_PI;
            break;
        
        case UIInterfaceOrientationLandscapeRight:
            angle = -M_PI/2;
            break;
        
        case UIInterfaceOrientationLandscapeLeft:
            angle = M_PI/2;
            break;
        
        default:
            angle = 0;
            break;
    }

    CATransform3D transform =  CATransform3DMakeRotation(angle, 0, 0, 1.0);
    self.prevLayer.transform = transform;
    self.prevLayer.frame = self.view.bounds;
}

sebk / ScannerApp