android - Playing sounds in an array with the next and back button -


i have 3 sounds , trying play them when button pressed. have 2 buttons, next , button. next button move array of sounds in forward direction , play them when clicked, , button play sounds , move array in reverse direction.

here logic trying use:

    private int[] sounds = { r.raw.chase, r.raw.get_down,             r.raw.under_arrest };     private int pool = 0;     mediaplayer mp;      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.learn_main);          button btnnext = (button) findviewbyid(r.id.button2);         button btnback = (button) findviewbyid(r.id.button1);           mp = mediaplayer.create(this, sounds[pool]);           // initializing on         btnnext.setonclicklistener(new view.onclicklistener() {              @override             public void onclick(view arg0) {                 if (pool < sounds.length - 1) {                     pool++;                   } else {                      pool = 0;                 }                            mp.???????????           });          btnback.setonclicklistener(new view.onclicklistener() {              @override             public void onclick(view arg0) {                 if (pool > 0) {                     pool--;                  } else {                      pool = sounds.length - 1;                 }                 mp.???????????               }          });      } }

i hope explained wanted, at-least tried. please let me know if failed in clarifying question, edit matter.

you need re-initialise mediaplayer every time want play different result. here's example:

btnnext.setonclicklistener(new view.onclicklistener() {          @override         public void onclick(view arg0) {             if (pool < sounds.length - 1) {                 pool++;             } else {                 pool = 0;             }                  refreshmediaplayerwithsound(pool);     });   btnback.setonclicklistener(new view.onclicklistener() {          @override         public void onclick(view arg0) {             if (pool > 0) {                 pool--;             } else {                 pool = sounds.length - 1;             }                 refreshmediaplayerwithsound(pool);     });   private void refreshmediaplayerwithsound(int pool) {      if (mp != null) {          mp.release(); // release played / held resources      }      mp = mediaplayer.create(youractivity.this, sounds[pool]);            mp.start(); }

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