I don’t think this is possible but I don’t know everything so I better just ask…
Is it possible for me to develop an Android app where I can change to a specific track being played no matter the audio player being used? I mean, all of them use the built-in “media server” to play audio files, right? Maybe that doesn’t mean anything…
I wanted to develop this app where the track would automatically change to another according to some specific dynamic information but I didn’t want to develop my own audio player for that, I wanted to use whatever the user’s preference is on that field.
Do I have any other choice other than developing an audio player?
No you cannot, unless, the other apps support this feature.
If the other apps support a specific broadcast or intent, then you could. But the only way to do this, considering the well-known audio players people use, I think you have to create your own player.