Will help guys) I want to place a logo on the toolbar android system, I need 5 sizes, as I understand it, which ones?

Question

Android

Help guys) on the android system toolbar I want to place my company logo, I'm making an application, I need 5 sizes as I understand it, different screens are the same in all, etc. what sizes do I need a logo?

Answer 1

In the general case, 6 generalized densities are used, for which there are corresponding scaling factors - 3:4:6:8:12:16.
An example from the official documentation for a 48x48px image, in the first column is the size multiplier, in the second is the calculated size for the example, in the third is the name.

• 0.75x - 36x36 - low-density (LDPI)
  
• 1.0x - 48x48 - medium-density (MDPI)
  
• 1.5x - 72x72 - high density (HDPI)
  
• 2.0x - 96x96 - extra high density (XHDPI)
  
• 3.0x - 144x144 - extra-extra-high-density (XXHDPI)
  
• 4.0x - 192x192 - extra-extra-extra-high-density (XXXHDPI)