Generates a random string and copies it to the Android clipboard, as well as displays it in a short Toast popup. The format "[abcdefgh] " is 8 random lowercase characters, surrounded by square brackets and a trailing space.Use it for attaching a random tag to things. A new tag is generated every time the app is run.This software is open source at https://github.com/kenta2/Random-Characters-for-AndroidIf you would like a different output format, feel free to modify the source code.