How to programmatically issue a click event on Android

You are going to have a very hard time injecting Events from your app into any other app, due to security reasons.

However, you might have better luck in native land, C/C++. So hopefully your sensor-wrapper will end up as a .SO lib which can be included in other projects...

Because what you're trying to do kinda sounds like what Espresso can do (it's a JUnit test suite that can inject Motion/Touch/KeyEvents into views)

However, you can compile your own image with some added accessibility apps that might get you there. But your idea is really not going to be applicable to just about any off-the-shelf android device.