Measuring keyboard typing speed, key-press rate in Android

Question

I would like to create an app which runs continuously in the background and does the following: - When user opens a keybaord to type, timer starts and I log start/end time and number of characters (key-presses) typed in a given go. I just need ideas on this (point me to an API or something) - how should I go about this - ideas?

Answer 1

You are welcome to create your own input method editor that incorporates this feature, then convince prospective users to install and switch to your input method.

Otherwise, what you want is impossible. For obvious security and privacy reasons, apps cannot spy on other apps' data input.