What options do we have as iOS developers to a library that enables scanning/reading a barcode through the device’ camera?
Commercial or gratis. Open source or closed.
Preferably works with Swift, or at least Objective-C.
No other features needed, just scan the barcode and translate to its textual value. From there my app will store in a database or send to a server and so on. Not creating or printing barcodes.
Basil if you are looking for commercial iOS libraries for barcode recognition you can take a look at LEADTOOLS Barcode SDK. LEADTOOLS has native iOS frameworks for both Objective-C and Swift. You can take a look at this app store demo here: https://itunes.apple.com/us/app/leadtools-barcode-scanner/id601172795?mt=8
You can reference my answer on this StackOverflow post. You can see the extent of required code using the SDK for both Objective-C and Swift:
Obj C:
data = [_barcodeEngine.reader readBarcodes:rasterImage searchBounds:LeadRectZero
symbologies:enabledSymbologies options:_barcodeReadOptions error:&error];
Swift:
data = try? self.barcodeEngine.reader.readBarcode(rasterImage, searchBounds: LeadRectZero,
symbologies: enabledSymbologies, options: self.barcodeReadOptions)
Please note: I am an employee of this product
