I am also searching for a similar app on Android which could do the same job as TuxSH/mastermune's InputRedirectionClient-Qt. If we refer to the documentation of QtGamePad, the library is supported by Android (v4.1+) using the InputDevice API. Unfortunately, I don't have enough experience in coding and at a first sight, it seems that there is something more to do than just compile the GitHub repo.
By the way, I am going to learn a bit to see if it is actually doable. Also, I always wondered if it is possible to use an other communication method (something else than through wifi). I am thinking about the data-sharing which is available in most smartphones. Too little knowledge here too.
Some documentation :
- Qt for Android
- QtGamePad
- Getting started with Qt for Android
- InputRedirection-Qt GitHub Repository