Open Source Keyboards

Japanese hiragana keyboard for Android. It' shaped like a circle and you write by swiping towards choices. It's fast but it's not a complete Japanese keyboard. More of a proof of concept. Also a good example code if you want to make your own unconventional keyboard for Android.

CodeWhisk is an input method for Android that is designed to make programming code entry efficient (and fun!)

Flow is an on-screen keyboard for Android devices. It combines many features to enable exceptionally fast text input, including an optimized keyboard layout based on common patterns in English words.

Codeless drop-in universal library allows to prevent issues of keyboard sliding up and cover UITextField/UITextView. Neither need to write any code nor any setup required and much more. While developing iOS apps, we often run into issues where the iPhone keyboard slides up and covers the UITextField/UITextView. IQKeyboardManager allows you to prevent this issue of keyboard sliding up and covering UITextField/UITextView without needing you to write any code or make any additional setup. To use IQKeyboardManager you simply need to add source files to your project. IQKeyboardManager works on all orientations, and with the toolbar. It also has nice optional features allowing you to customize the distance from the text field, behaviour of previous, next and done buttons in the keyboard toolbar, play sound when the user navigates through the form and more.