Use of mipmaps?

[AC Question]

Use of mipmaps

We can also put our icon in different density drawable folders by creating manually drawable hdpi,xhdpi,xxhdpi folders..Then why mipmaps??

 

[mike_leonidas]

Re: Use of mipmaps

That is because app icon is quite special, devices can use different app icon sizes not solely based on device density, for example, it will shows xxxhdpi icon in home, xxhdpi in launchers, and etc.

Drawables may be stripped out as part of dp-specific resource optimisation. But mipmaps will not be stripped. So it's best to put app icons under mipmaps.

Here is more detail written on google documentation page:

Different home screen launcher apps on different devices show app launcher icons at various resolutions. When app resource optimization techniques remove resources for unused screen densities, launcher icons can wind up looking fuzzy because the launcher app has to upscale a lower-resolution icon for display. To avoid these display issues, apps should use the mipmap/ resource folders for launcher icons. The Android system preserves these resources regardless of density stripping, and ensures that launcher apps can pick icons with the best resolution for display.

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