java - Play song if sensor detects certain amount of movement -

i trying call different songs whenever sensor detects change in movement example...

if no movement detected play song 1. if movement detected play song 2. else if movement stops play song 1 again.

so far, have been successful , plays through first 2 if statements above, however, can't song 1 without music player playing on itself. i've tried using .pause(); seems pause second , plays song1 on again , again.

this have far:

public void onsensorchanged(sensorevent se) {             float x = se.values[0];             float y = se.values[1];             float z = se.values[2];             maccellast = maccelcurrent;             maccelcurrent = (float) math.sqrt((double) (x * x + y * y + z * z));             float delta = maccelcurrent - maccellast;             maccel = maccel * 0.9f + delta; // perform low-cut filter              mp1.start(); //song1 starts              if (maccel > 5) { // movement                 mp2.start(); // start song2                 if (mp2.isplaying()) { // if song 2 playing stop song1                     mp1.stop();                 }             }         } 

use 1 media player object, not 2 of them. re-using media player ensure 1 sound played @ once whilst keeping system resource usage low.

create new function stop media player , release like:

private void stopplaying() {     if (mp != null) {         mp.stop();         mp.release();         mp = null;     } } 

then add function re-create , start media player going new audio.