Challenge: Dynamically Adjusting the Number of Columns
Currently the number of columns displayed in the grid is fixed at three. Update your code to provide a dynamic number of columns so more columns appear in landscape and on larger devices.
A simple approach could involve providing an integer resource qualified for different orientations and/or screen sizes. This is similar to how you provided different layouts for different screen sizes in Chapter 17. Integer resources should be placed in the res/values folder(s). Check out the Android developer documentation for more details.
Providing qualified resources does not offer much in the way of granularity. For a more difficult challenge (and more flexible implementation), calculate ...
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