Question

当我直接打开相机对QRCode的视图时，它会崩溃。但是当我在QRCode开始时没有直接打开相机的视图时，它工作正常。我已经尝试使用空的应用程序相同的代码，它的工作完美。它只是发生了这种情况。所有IBOutlets和IBActions都在工作，这是我的代码：

SerialController.h:

#import <UIKit/UIKit.h>
#import "ZBarSDK.h"

@interface SerialController : UIViewController <ZBarReaderDelegate>

@property (weak, nonatomic) IBOutlet UIActivityIndicatorView *spinner;
@property (weak, nonatomic) IBOutlet UILabel *description;
@property (weak, nonatomic) IBOutlet UIImageView *key;
@property (weak, nonatomic) IBOutlet UILabel *resultText;


@property (weak, nonatomic) IBOutlet UIActivityIndicatorView *qrSearchButton;

@property (weak, nonatomic) IBOutlet UIView *contentHolder;

@property (weak, nonatomic) IBOutlet UIImageView *turkcellLogo;
@property (weak, nonatomic) IBOutlet UIImageView *backgroundImage;
@end

SerialController.m

- (IBAction)handleQrSearchButtonTap:(id)sender {


    ZBarReaderViewController *codeReader = [ZBarReaderViewController new];
    codeReader.readerDelegate=self;
    codeReader.supportedOrientationsMask = ZBarOrientationMaskAll;

    ZBarImageScanner *scanner = codeReader.scanner;
    [scanner setSymbology: ZBAR_I25 config: ZBAR_CFG_ENABLE to: 0];

    [self presentViewController:codeReader animated:YES completion:nil];

}

#pragma mark - ZBar's Delegate method

- (void) imagePickerController: (UIImagePickerController*) reader didFinishPickingMediaWithInfo: (NSDictionary*) info
{
    //  get the decode results
    id<NSFastEnumeration> results = [info objectForKey: ZBarReaderControllerResults];

    ZBarSymbol *symbol = nil;
    for(symbol in results)
        // just grab the first barcode
        break;

    // showing the result on textview
    self.resultText.text = symbol.data;



    // dismiss the controller
    [reader dismissViewControllerAnimated:YES completion:nil];
}

Answer 1

您不想使用名为description的媒体资源。我花了几个小时试图修复完全相同的问题。 description是NSObject中的标准方法，您将其隐藏起来。将其重命名为其他内容。

IOS - ZBarSDK - 应用程序崩溃 - [UILabel length]：无法识别的选择器发送到实例

1 个答案: