杏林李

we need keep screen when playing not keep screen in app ======================= we play music with bluetooth in car when the car close engine,the music playing will be stoped or paused so we need when the music is playing,the screen keep lighting and when the music is stoped or paused,the srcee will close or lightdown in few minutes if just only keep screen in app,the srceen will always keep whatever we start the car's engine or close the car engine.