Android: px, dp (dip), and sp

Android: px, dp (dip), and sp

1. px: indicates the actual pixels of the screen. For example, a 320*480 screen has 320 pixels horizontally and 480 pixels vertically. If the unit of a specified space is px, in this case, the mobile phone displays the specified size at different resolutions. Px is generally not recommended.

2. dp (dip): physical size of the screen. It can be understood as a convertible value. In different resolutions, a certain algorithm is used to convert pixel units to display on the mobile phone. This can adapt to the screen. Recommended.

3. sp: similar to dp, it is only a font unit.