Bertha is a simple demo project that showcases how to set up Android launcher icons and shortcuts, for all versions of Android up to O (8.0.0, API 26) included.

This showcases:

• "Legacy" launcher icons for Android versions up to 7.0 Nougat (API 24)
  • These icons can have a background, but in this case, they don't, as most apps from that era didn't
    (unless they had lazy designers or logos that had a background)
  • Must use PNGs as vector drawables and WEBP images were not supported for launcher icons
• Round launcher icons for Android 7.1 Nougat (API 25)
  • Originally used in the Pixel launcher to have visual coherency
  • Replaced by Adaptive Icons in Android O (see next bullet point)
  • Must use PNGs as vector drawables and WEBP images were not supported for launcher icons
• Adaptive Icons for Android 8.0 O (API 26) and later
  • Can use vector drawables (finally)
  • Different canvas size, 108dp, with a 72dp visible area
  • Safe area is actually a circle with a 66dp diameter, not a square
  • Composed of background and foreground layers, mask is provided by the launcher
  • Can be animated (but aren't yet as of Android O Developer Preview 3)
• Launcher shortcuts for Android 7.1 Nougat (API 25) and later
  • Accessed via long-press or other gestures
  • Useful for deeplinks (in this case, they set the image in the app)
  • Not demoed here are dynamic shortcuts, only the static shortcuts

API < 25	API 25	API 26+

API 25	API 26+	Demo (API 26)

The code is licenced under the Apache License 2.0, see the LICENSE file. The icons used are based on a free vector design from Freepik.