ios - 使用 ZBar 扫描和捕获条码

Question

尝试使用 ZBar 捕获条形码。我现在有以下代码。当代码周围出现绿色覆盖时，扫描仪显示并似乎在扫描条形码。我不知道如何捕获解码结果。

我可能做错了，所以我想问一下。扫描时没有任何输出到控制台，所以不要认为 didReadSymbols 被调用了。

.h

@interface ScannerViewController : UIViewController <ZBarReaderDelegate> {
}

@property (strong, nonatomic) IBOutlet UILabel *readerResult;
@property (strong, nonatomic) IBOutlet UIView *readerView;
@property (strong, nonatomic) IBOutlet ZBarReaderView *zbr;

.m

- (void)viewDidLoad
{
    [super viewDidLoad];
    // force class to load so it may be referenced directly from nib
    [ZBarReaderViewController class];

    ZBarReaderViewController *reader= [ZBarReaderViewController new];
    reader.readerDelegate = self;

    ZBarImageScanner *scanner = reader.scanner;
    //reader.cameraOverlayView = self.readerView;
    [scanner setSymbology: 0
                          config: ZBAR_CFG_ENABLE
                              to: 1];
    [reader setShowsZBarControls:NO];
    [reader.readerView start];
    self.zbr = reader.readerView;
    [self.view addSubview:reader.view];

}

- (void) zbr: (ZBarReaderView*) view
     didReadSymbols: (ZBarSymbolSet*) syms
          fromImage: (UIImage*) img
{
    NSLog(@"Scanner used");
    //do something useful with results and display resultText in resultViewController
    for(ZBarSymbol *sym in syms) {
        NSLog(@"Logged");
        //return resultText;
        break;
    }
}

任何建议都会很棒。我现在对此感到非常困惑。干杯。

Answer 1

当我查看 ZBar 的文档时，I see the delegate method signature is :

- (void) readerView:(ZBarReaderView*)readerView didReadSymbols:(ZBarSymbolSet*)symbols fromImage:(UIImage*)image

这和你上面的不一样。将您的“zbr”替换为“readerView”，您的委托(delegate)方法应该被调用。