Information Technology
Barcodes with iOS
The topic of barcodes serves as the common thread running through the chapters of this book, but you can dive into specific chapters to learn about particular technologies. Here’s a quick overview of what you will find in each of the chapters. Chapter 1 introduces you to the barcode types that are natively supported starting with iOS 7. You’ll become a barcode guru and be able to hold your own in any conversation about barcodes, their omises, and their limitations. If you like a good story, flip to appendix A, which recounts the curious history of the mother of all barcodes: the UPC. Chapter 2 gives you a solid introduction to AV Foundation media capture. You’ll become familiar with the components of this framework, which we’ll use to build a camera app. Chapter 3 introduces you to the metadata detectors for scanning barcodes, building on the camera preview from chapter 2. At this point, you’ll have a reusable bar- code scanner that you can employ in all your apps.
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