MusicPlayer in Android status bar -

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i have android app plays mp3 files. have programmed main functions play/pause forward, backward buttons, manipulating seekbar, getting current position , on. want make app continue playing closed app. , when close it, want appear thing widget in status bar basic actions (displaying app icon, track name, play/pause button). , also, want seekbar work when reopen app. can me. i'm beginner in android java, perfect if answer contains steps. beforehand

i think tutorial match query

android custom notification music player example


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