Android (f/w 2.1+) on screen keyboard for multiple languages
Android Keyboard transforms simple letters into special characters
Android Chinese keyboard: Stroke Input Method
Flow is an on-screen keyboard for Android devices.
Android keyboard with a swipe input system, now with emoji support
Android keyboard for secure E2EE communication
Android smartphone app to suppress the default keyboard
Hacker's Keyboard Termux Mod
Codeboard App
Implementation of a re-usable custom onscreen keyboard
Round hiragana keyboard for Android.
An advance Emoticons & GIF keyboard
Khmer Unicode Keyboard Layout for External/Physical Keyboard
translate keystrokes typed with the wrong keyboard layout
Alphabetical Keyboard
On-screen keyboard that highlights keys that are pressed.
virtual keyboard writing in java
Programming keyboard for Android