how to make "soundboard" work on phone

A couple of months ago I made the following post, about how to get sound to play.

https://forum.processing.org/two/discussion/comment/53262

@akenaton was extremely helpful, and helped me get sound to play on my phone. Now I'm ready to take the program to the next level. Eventually I want to make an app to help me learn Cantonese. Right now I'm just trying to make a program that will play 6 different sound files, depending on what button is pressed. Each file is a mp3 and is only one word, so its about 1 second long.

the code below runs fine in java mode:

Button[] b;
import ddf.minim.*;
Minim minim;


void setup() {
  //  size(1080,1920);//phone res
  size(360, 640);// 1/3 of phone res

  minim = new Minim(this);

  rectMode(RADIUS);
  b= new Button[6];
  b[0] = new Button(width/6, height-width/6, "sin1.mp3");
  b[1] = new Button(3*width/6, height-width/6, "sin2.mp3");
  b[2] = new Button(5*width/6, height-width/6, "sin3.mp3");
  b[3] = new Button(width/6, height-3*width/6, "sin4.mp3");
  b[4] = new Button(3*width/6, height-3*width/6, "sin5.mp3");
  b[5] = new Button(5*width/6, height-3*width/6, "sin6.mp3");
//there are 6, 1 second, mp3 files in the folder with the project.

}
void draw() {
  background(255);
  for (int n = 0; n < 6; n++) {
    b[n].update();
  }
}

//---------------------------------------------------------
//---------------------------------------------------------
//---------------------------------------------------------

class Button {
  float x, y, r;
  color myColor;
  boolean initialPress;
  String mp3;
  AudioPlayer player;


  Button( float myX, float myY, String myMp3) {
    x=myX;
    y=myY;
    r=width/7;
    myColor=color(200, 200, 10);
    initialPress=true;
    mp3=myMp3;
  }


  void update() {
    fill(myColor);
    rect(x, y, r, r);

    if (mousePressed && over() && initialPress ) {//when the button is pressed (initially) , this code runs
      initialPress=false;
      player = minim.loadFile(mp3);
      player.play();
    } else if ( !mousePressed || !over()) {//when the button is NOT being pressed, this code runs
      initialPress=true;
    }
  }

  boolean over() {
    float d = max(abs(x-mouseX), abs(y-mouseY)); // this is a square
  return d <= r ;
   }

 }
 </code>

I want this to run on my phone. However I learned before that Minim doesn't seem to work in android mode, and I have to use android.media.MediaPlayer instead. I'm not really sure how to even begin doing this. I tried some things before, but when I had multiple sound files in a folder the android media player would just play all files one by one. Therefor I don't even what to show you may attempt to get the android media player to work, because I know I did it all wrong.

I want to get the above code to run on my phone. PLEASE HELP