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Individual tabs in the UI were defined as separate Activities, which helped allow the team subdivide tasks across each of screens. This is a robust part of Android and so is very responsive and usable. The icons have large click areas to prevent errors, and their icons are good indicators of their contents.
Open Source packages were found and integrated for the barcode reader and QR code generator. This package also deals with ensuring the user can get access to a barcode reader if they do not already have one. This ensure setup of the additional dependencies is as easy as possible for the user.
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