ZXingObjc 集成 IOS ，但根本不工作答案

【问题标题】：ZXingObjc Integration IOS ,but didn't work at allZXingObjc 集成 IOS ，但根本不工作
【发布时间】：2015-05-21 06:33:35
【问题描述】：

我已经集成了ZXingObjc 框架，并将ViewController 集成为RootViewController。 ViewController.m 中的代码如下：

#import <AudioToolbox/AudioToolbox.h>
#import "ViewController.h"

@interface ViewController ()

@property (nonatomic, strong) ZXCapture *capture;
@property (nonatomic, weak) IBOutlet UIView *scanRectView;
@property (nonatomic, weak) IBOutlet UILabel *decodedLabel;

@end

@implementation ViewController

#pragma mark - View Controller Methods

- (void)dealloc {
    [self.capture.layer removeFromSuperlayer];
}

- (void)viewDidLoad {
    [super viewDidLoad];

    self.capture = [[ZXCapture alloc] init];
    self.capture.camera = self.capture.back;
    self.capture.focusMode = AVCaptureFocusModeContinuousAutoFocus;
    self.capture.rotation = 90.0f;

    self.capture.layer.frame = self.view.bounds;
    [self.view.layer addSublayer:self.capture.layer];
}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];

    self.capture.delegate = self;
    self.capture.layer.frame = self.view.bounds;
    self.capture.scanRect = self.scanRectView.frame;

}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {
    return toInterfaceOrientation == UIInterfaceOrientationPortrait;
}

#pragma mark - Private Methods

- (NSString *)barcodeFormatToString:(ZXBarcodeFormat)format {
    switch (format) {
        case kBarcodeFormatAztec:
            return @"Aztec";

        case kBarcodeFormatCodabar:
            return @"CODABAR";

        case kBarcodeFormatCode39:
            return @"Code 39";

        case kBarcodeFormatCode93:
            return @"Code 93";

        case kBarcodeFormatCode128:
            return @"Code 128";

        case kBarcodeFormatDataMatrix:
            return @"Data Matrix";

        case kBarcodeFormatEan8:
            return @"EAN-8";

        case kBarcodeFormatEan13:
            return @"EAN-13";

        case kBarcodeFormatITF:
            return @"ITF";

        case kBarcodeFormatPDF417:
            return @"PDF417";

        case kBarcodeFormatQRCode:
            return @"QR Code";

        case kBarcodeFormatRSS14:
            return @"RSS 14";

        case kBarcodeFormatRSSExpanded:
            return @"RSS Expanded";

        case kBarcodeFormatUPCA:
            return @"UPCA";

        case kBarcodeFormatUPCE:
            return @"UPCE";

        case kBarcodeFormatUPCEANExtension:
            return @"UPC/EAN extension";

        default:
            return @"Unknown";
    }
}

#pragma mark - ZXCaptureDelegate Methods


- (void)captureCameraIsReady:(ZXCapture *)capture
{
    NSLog(@"%s,%d",__FUNCTION__,__LINE__);

}

- (void)captureResult:(ZXCapture *)capture result:(ZXResult *)result {

    if (!result) return;
    NSLog(@"%s,%d",__FUNCTION__,__LINE__);
    // We got a result. Display information about the result onscreen.
    NSString *formatString = [self barcodeFormatToString:result.barcodeFormat];
    NSString *display = [NSString stringWithFormat:@"Scanned!\n\nFormat: %@\n\nContents:\n%@", formatString, result.text];
    [self.decodedLabel performSelectorOnMainThread:@selector(setText:) withObject:display waitUntilDone:YES];

    // Vibrate
    AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);

    [self.capture stop];

    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 2 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
        [self.capture start];
    });
}

@end

我发现- (void)captureResult:(ZXCapture *)capture result:(ZXResult *)result这个方法根本不起作用。

接下来，我把同样的代码放到ZXingObjc的例子中，效果很好。我真的不知道我怎么了。希望得到您的帮助！

【问题讨论】：

搜索演示和您的项目之间的差异。我刚才试了一下，效果很好
你什么都没说
您找到解决方案了吗？我也有同样的问题

标签： ios zxing qr-code

【解决方案1】：

我遇到了同样的问题。在我的情况下，视图控制器会启动，但永远不会检测到条形码。结果我需要将“-ObjC”添加到“其他链接器标志”。

参考：https://developer.apple.com/library/ios/technotes/iOSStaticLibraries/Articles/configuration.html

【讨论】：

【解决方案2】：

您的 Viewcontroller.h 文件是否采用了 ZXCapture 协议？像这样的：

    //ViewController.h    
    @interface ViewController: NSObject <ZXCaptureDelegate> //<---- this guy

    - (void)yourFunction;
    - (void)anotherFunction;

    @end

（我不知道它的真名是什么）

【讨论】：