QuickFlick is minimal size keyboard for any hackers.
If you use terminal emulator or code editor in Android Phone, this app will be BEST choice.

• Compact Height.
• Place all of major keys which US sequence keyboard has.
• All characters and numbers can input only with one action.
• Meta/Ctrl/Alt keys have LOCK mode.

This app is now available on Google Play.

Check Wiki.

MIT License

must

• dynamic preview
• refactor app
• add unit test
• add ui tests
• change keyboard height
• first-run-tutorial
• offline document(wiki)
• check multi-modified-key behavior

maybe

• keyboard footer on landscape
• lockable Shift key
• user-defined background theme
• user-defined indicator theme