Scandit phonegap ios插件中的“编程接收信号EXC_BAD_ACCESS”

我正在使用Scandit phonegap-plugins for iOS https://github.com/Scandit/BarcodeScannerPlugin。但是窃听从屏幕扫描按钮它崩溃并显示了错误后：程序在该行的接收信号EXC_BAD_ACCESS [self.viewController presentViewController：scanditSDKBarcodePicker动画：完成YES：^ {以下代码Scandit phonegap ios插件中的“编程接收信号EXC_BAD_ACCESS”

if ([self.viewController respondsToSelector:@selector(presentViewController:animated:completion:)]) { 
    [self.viewController presentViewController:scanditSDKBarcodePicker animated:YES completion:^{ 
     startAnimationDone = YES; 
     if (self.bufferedResult != nil) { 
      [self scanditSDKOverlayController:scanditSDKBarcodePicker.overlayController 
           didScanBarcode:self.bufferedResult]; 
      self.bufferedResult = nil; 
     } 
    }]; 
} else { 
    [self.viewController presentModalViewController:scanditSDKBarcodePicker animated:NO]; 
    startAnimationDone = YES; 
} 

[scanditSDKBarcodePicker performSelector:@selector(startScanning) withObject:nil afterDelay:0.1]; 
[scanditSDKBarcodePicker release];}

这里是回溯追踪

#0 0x0253009f in objc_msgSend() 
#1 0x00000001 in ??() 
#2 0x0251ab70 in objc_setProperty() 
#3 0x00180870 in -[UIViewControllerAction setCompletion:]() 
#4 0x00189c4c in -[UIViewController presentViewController:withTransition:completion:]() 
#5 0x0018a58c in -[UIViewController presentViewController:animated:completion:]() 
#6 0x095a6280 in -[UIViewControllerAccessibility(SafeCategory)    presentViewController:animated:completion:]() 
#7 0x0000786b in -[ScanditSDK scan:withDict:] (self=0xe00aad0, _cmd=0x5b0f6, arguments=0xe026e90, options=0xe026f60) at /Users/Elevate/Projects/phonegap-plugins-master/iOS/BarcodeScanner/Example/BarCodeScannerCDV/BarCodeScannerCDV/ScanditSDK.mm:340 
#8 0x0238dec9 in -[NSObject performSelector:withObject:withObject:]() 
#9 0x0001bf30 in -[CDVViewController execute:]() 
#10 0x00003883 in -[AppDelegate execute:] (self=0x8722a50, _cmd=0x5a395, command=0xe026e60) at /Users/Elevate/Projects/phonegap-plugins-master/iOS/BarcodeScanner/Example/BarCodeScannerCDV/BarCodeScannerCDV/Classes/AppDelegate.m:145 
#11 0x0001bc58 in -[CDVViewController executeQueuedCommands]() 
#12 0x0001bd2e in -[CDVViewController flushCommandQueue]() 
#13 0x0001af22 in -[CDVViewController webView:shouldStartLoadWithRequest:navigationType:]() 
#14 0x00003b5f in -[AppDelegate webView:shouldStartLoadWithRequest:navigationType:] (self=0x8722a50, _cmd=0x5a424, theWebView=0x9212760, request=0x9231580, navigationType=UIWebViewNavigationTypeOther) at /Users/Elevate/Projects/phonegap-plugins-master/iOS/BarcodeScanner/Example/BarCodeScannerCDV/BarCodeScannerCDV/Classes/AppDelegate.m:183 
#15 0x002738d4 in -[UIWebView webView:decidePolicyForNavigationAction:request:frame:decisionListener:]() 
#16 0x0027559e in -[UIWebViewWebViewDelegate webView:decidePolicyForNavigationAction:request:frame:decisionListener:]() 
#17 0x022f251d in __invoking___() 
#18 0x022f2437 in -[NSInvocation invoke]() 
#19 0x0231d49a in -[NSInvocation invokeWithTarget:]() 
#20 0x02b82aa4 in -[_WebSafeForwarder forwardInvocation:]() 
#21 0x022f30c9 in ___forwarding___() 
#22 0x022f2ce2 in __forwarding_prep_0___() 
#23 0x022f251d in __invoking___() 
#24 0x022f2437 in -[NSInvocation invoke]() 
#25 0x03722ae3 in SendMessage() 
#26 0x03723115 in HandleDelegateSource() 
#27 0x0236097f in __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__() 
#28 0x022c3b73 in __CFRunLoopDoSources0() 
#29 0x022c3454 in __CFRunLoopRun() 
#30 0x022c2db4 in CFRunLoopRunSpecific() 
#31 0x022c2ccb in CFRunLoopRunInMode() 
#32 0x02275879 in GSEventRunModal() 
#33 0x0227593e in GSEventRun() 
#34 0x000bda9b in UIApplicationMain() 
#35 0x00002b36 in main (argc=1, argv=0xbfffecb0) at /Users/Elevate/Projects/phonegap-plugins-master/iOS/BarcodeScanner/Example/BarCodeScannerCDV/BarCodeScannerCDV/main.m:32 
#36 0x00002aa5 in start()

来源

2013-08-01 Tajinder

你有没有实例化的scanditSDKBarcodePicker地方？

我认为你应该这样做：

ScanditSDKBarcodePicker picker = [[ScanditSDKBarcodePicker alloc] init];

，然后用它喜欢：

[self.viewController presentViewController:picker animated:YES....

来源

2013-08-01 13:21:09

是的，我实例化它。 – Tajinder

Scandit phonegap ios插件中的“编程接收信号EXC_BAD_ACCESS”

回答

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