zxing扫描条形码 ios

在ios中使用zxing扫描条形码：

1.在- (IBAction)scanPressed:(id)sender方法中：

ZXingWidgetController *widController = [[ZXingWidgetController alloc] initWithDelegate:self showCancel:YES OneDMode:YES];

MultiFormatOneDReader *OneReaders=[[MultiFormatOneDReader alloc]init];QRCodeReader* qrcodeReader = [[QRCodeReader alloc] init];NSSet *readers = [[NSSet alloc ] initWithObjects:OneReaders,qrcodeReader,nil];[qrcodeReader release];[OneReaders release];2.在ZXingWidgetController.m的 (void)captureOutput:(AVCaptureOutput *)captureOutput :方法中，注释掉以下方法

if (oneDMode) {    // let's just give the decoder a vertical band right above the red line        cropRect.origin.x = cropRect.origin.x + (cropRect.size.width / 2) - (ONE_D_BAND_HEIGHT + 1);    cropRect.size.width = ONE_D_BAND_HEIGHT;                    // do a rotate    CGImageRef croppedImg = CGImageCreateWithImageInRect(capture, cropRect);      capture = [self CGImageRotated90:croppedImg];     capture = [self CGImageRotated180:capture];    CGImageRelease(croppedImg);      cropRect.origin.x = 0.0;    cropRect.origin.y = 0.0;  

cropRect.size.width = CGImageGetWidth(capture); cropRect.size.height = CGImageGetHeight(capture); }

4、将以下的代码替换：

UIImage *scrn = [[UIImage alloc] initWithCGImage:newImage]; 

改为:

int backCameraImageOrientation = UIImageOrientationRight;     UIImage *scrn = [[UIImage alloc] initWithCGImage:newImage scale: (CGFloat)1.0 orientation:backCameraImageOrientation];

5、在OverlayView.m注释代码以下代码：

self.oneDMode = isOneDModeEnabled;

SCANNER for Portrait mode更多了解，参考一下文档：http://groups.google.com/group/zxing/browse_thread/thread/cfe2324e8baf2aaa

 参考：http://code.google.com/p/zxing/issues/detail?id=571

PS：谁如果已经解决了5.0用zxing扫描条形码的问题，弄出来给大家看下

http://shopsavvy.mobi/developers/  扫描库，没用过不知道效果如何

注，如果是itouch的话，可能会因为分辨率低的问题（以前一直因为是5.0的系统影响），不能解码，我以前为这个事情纠结了好长时间，刚刚买了iphone，是5.0的系统一切正常。