iOS Zbar bad access..

[IDMah]

I tried to run zbar with a view. which didn't work..

// ala this..
- (void) viewDidLoad
{
    [super viewDidLoad];
    
    reader = [[ZBarReaderViewController alloc] init];
    
    reader.readerDelegate = self;
    reader.showsZBarControls = NO;
    reader.supportedOrientationsMask = ZBarOrientationMaskAll;
    
    ZBarImageScanner *scanner = reader.scanner;
    
    [scanner setSymbology: 0
                   config: ZBAR_CFG_ENABLE
                       to: 0];
    
    [scanner setSymbology: ZBAR_QRCODE
                   config: ZBAR_CFG_ENABLE
                       to: 1];
    
    reader.readerView.frame = CGRectMake(self.view.frame.size.width* 0.015,self.view.frame.size.height*0.05375,
                                         self.view.frame.size.width *0.965625, 350);
    // 309, 350 //
    
    reader.readerView.alpha = 0.5;
    
    [self.view addSubview:reader.readerView];
    
}

but now I get a Thread 1:EXC_BAD_ACESSS (code=2, address=0x17)
in this: libobjc.A.dylib`_ZL12realizeClassP7class_t:
and libobjc.A.dylib`_class_lookupMethodAndLoadCache3:

even after changing everything back.. tried cleaning.
tried rebooting simulator. exiting and restarting Xcode..
Not sure where things are mucking up???

HELP !!!

thanks
Ian


ps. It was running fine last night. Compiled clean.. the only thing I added and then deleted was the above code..

 

[PhoneyDeveloper]

Is zbar built from a sub-project? Do you have the -ObjC linker flag set?

 

[waterskier2007]

Why did you decide to run it this way. Why not have it load up when you hit a button or some other sort of action? That's the way I have it set up and it works fine. Something worth noting however, is that for a while I could not get it to work. I was in one of the Dev builds of XCode 4.4 and then I upgraded to the 3rd preview and it started working.

 

[IDMah]

sort of fixed by giving up hahaaa !!!!

Hi WaterSkier I was trying to do that.. do you have an example?
obviously the example I found was not great..

I want to keep the app as "mom" proof as possible,camera screen confuses my mom.
So would like Zbar to live on a NSView Which says .. "Please scan QR code. "
Above the Zbar (live video) screen (CameraView) .. With an overlay of a
QR Code to be extra "mom" proof.

I think I did manage to fix it. buy Reverting back to previous code.
and I dropped the ZBar in to project so it's just a library. Not Sub-project.
but thanks.. Using Xcode 4.3.2 release..

thanks
Ian

ps. that said getting a "Thread 1 SIGTRAP" error when I run on iPad simulator.. ugh!