I hope this thread is placed right. If not feel free to move it.
I have a fairly simple idea:
All I want is to add a button to the Android 6 text selection menu that appears on several text fields like this:
So far I managed to add my app to the "..." menu by adding text processing intents to my app manifest. But I also want to add a button to the "paste" menu as well so I can alternatively execute my own paste operation. Since I have never customized my Android OS I am not sure where to start. It would be perfect if there was a way to do that using official APIs so I could potentially put my final app into the playstore. Do you have any ideas how to approach this?
My system: OnePlus X, Android 6.0.1, CyanogenMod 13.0-20160819-nightly-onyx
Thank you for your help.