Scaning static UIImage using ios ZBar SDK

Question

I want to scan a static UIImage using Zbar sdk, it gives error i.e. ZBarSymbol is Null

I also checked

ZBarReaderController: UIImagePickerCon

Answer 1

A stripped-down generic version of Baig's wonderful solution. Change ZBAR_I25 to desired code format.

- (NSString *)findQRCode:(UIImage *)inputUIImage
{

    ZBarReaderController *imageReader = [ZBarReaderController new];

    [imageReader.scanner setSymbology: ZBAR_I25
                               config: ZBAR_CFG_ENABLE
                                   to: 0];

    id <NSFastEnumeration> results = [imageReader scanImage:inputUIImage.CGImage];

    ZBarSymbol *sym = nil;
    for(sym in results) {
        break;
    } // Get only last symbol

    if (!sym) {
        NSLog(@"No barcode found");
        return nil;
    }

    NSLog(@"Found barcode! quality: %d string: %@", sym.quality, sym.data);
    return sym.data;
}

Answer 2

Got solution:

- (NSString *)scanForQR:(UIImage *)image
{

    ZBarReaderController *imageReader = [ZBarReaderController new];

    [imageReader.scanner setSymbology: ZBAR_I25
                               config: ZBAR_CFG_ENABLE
                                   to: 0];

    id <NSFastEnumeration> results = [imageReader scanImage:image.CGImage];

    ZBarSymbol *sym = nil;
    for(sym in results) {
        break;
    } // Get only last symbol

    if (!sym) {
        NSLog(@"No barcode found");
        return nil;
    }

    NSLog(@"Found barcode! quality: %d string: %@", sym.quality, sym.data);
    return sym.data;
}