I have just written this code in Android Studio:
MediaPlayer mPlayer = MediaPlayer.create(this, R.raw.OOO); mPlayer.start();
Before this I added a new folder "raw" and put the file "OOO".mp3 in it. When I launched my program, The Android Studio said something like this:Choose a file type for type *mp3, and there were a lot of types like these: html files, properties files and things like that.
Being confused what to choose, chose the second radiobutton. There was a text on it:use matched associated program, something like that.
Then, I pressed "next", and Windows Media Player was opened, and my mp3 was played! And now, everytime I launch my project, Windows media player launches and my project does not starts in Emulator! How can I return my settings back?