Appendix C: Everything about sizes and dimensions in Android

Designing Android app you have to be aware of enormous variety of devices. They have different physical sizes (from small phones to large tablets), different screen sizes (diagonal from 3 inches or less to above 5 inches), different screen resolutions (from 320×480 pixels to Full HD – 1920×1080 – or more) and different screen densities – number of pixels per inch (from 120 dpi to 480 dpi). And there is also screen orientation (landscape or portrait) to take into account.

Read More