如何使用ZBar SDK扫描QR码时删除绿色矩形？

Question

- (IBAction)scanProduct:(id)sender
{   
   // for scanning product
    ZBarReaderViewController *reader = [[ZBarReaderViewController alloc] init];
    reader.readerDelegate = self;
    reader.supportedOrientationsMask = ZBarOrientationMaskAll;    
    ZBarImageScanner *scanner = reader.scanner;    
    [scanner setSymbology: ZBAR_I25
                               config: ZBAR_CFG_ENABLE
                                   to: 0];    
    [self presentModalViewController: readerqr
                                        animated: YES];  
}

当点击按钮readerqr时出现绿色矩形。

Answer 1

查看the documentation for ZBarReaderViewController，将tracksSymbols设置为NO似乎可以解决问题。