MainActivity.java

package com.aplysit.latihanmediaplayer;

import android.media.MediaPlayer;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {
    Button playmusic;
    Button playagust;
    Button playgugur;
    Button playhalo;
    Button playgaruda;
    Button playpemuda;

    MediaPlayer play;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        playmusic = (Button) findViewById(R.id.indonesia);
        playagust = (Button) findViewById(R.id.merdeka);
        playgugur = (Button) findViewById(R.id.gugur);
        playhalo = (Button) findViewById(R.id.halo_bandung);
        playgaruda = (Button) findViewById(R.id.garuda);
        playpemuda = (Button) findViewById(R.id.pemuda);

        playmusic.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                playSound(1);
            }
        });
        playagust.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                playSound(2);
            }
        });
        playgugur.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                playSound(3);
            }
        });
        playhalo.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                playSound(4);
            }
        });
        playgaruda.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                playSound(5);
            }
        });
        playpemuda.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                playSound(6);
            }
        });


    }
    @Override
    protected void onStop() {
        super.onStop();
        if (this.isFinishing()){
            play.stop();
        }
    }

    private void playSound(int arg){

        try{
            if (play.isPlaying()){
                play.stop();
                play.release();
            }
        }catch (Exception e){

        }

        if (arg ==1){
            play = MediaPlayer.create(this, R.raw.indonesia);
        }else if (arg ==2){
            play = MediaPlayer.create(this, R.raw.merdeka);
        }else if (arg ==3){
            play = MediaPlayer.create(this, R.raw.gugur);
        }else if (arg ==4){
            play = MediaPlayer.create(this, R.raw.halo_bandung);
        }else if (arg ==5){
            play = MediaPlayer.create(this, R.raw.garuda);
        }else if (arg ==6){
            play = MediaPlayer.create(this, R.raw.pemuda_pemudi);
        }

        play.setLooping(true);
        play.start();
    }
}