In the previous chapter, we started to capture more contextual information within our apps by utilizing the built-in GPS functions of a mobile device. In this chapter, we will expand on our exploitation of mobile device capabilities by capturing and using images, as well as being able to read/identify information from barcodes and Quick Response (QR) codes.
Both barcodes and QR codes are available on almost everything that we interact with on a day-to-day basis, whether that is on our food goods or our electronics and even for quickly locating apps. These unique identifiers can be utilized throughout our apps, allowing us to encode and read data using methods other than standard textual formats.
In this chapter, ...
