To change app name go to values then strings.xml <string name="applabel">DJ Music Player</string> replace DJ Music Player
To change ads go in res/layout audio_player_land.xml and replace ads:adUnitId="a150e320bc0f486" with your own id
to change second add go in audio_player_port.xml and replace ads:adUnitId="a150e320bc0f486" with your own id
to change third add go in media_picker_activity.xml and replace ads:adUnitId="a150e320bc0f486" with your own id
to change fourth add go in media_picker_activity.xml and replace ads:adUnitId="a150e320bc0f486" with your own id
Replace all images in drawable, drawable_hdpi, drawable_mdpi, drawable_xhdpi
Rename application package