How can I use MediaPlayer for my button onClick?

Question

I'm doing an app in Android Studio. I have a problem because I can't put MediaPlayer to my buttons. When button will be pressed, the sound effect starts to play.

How can I use this:

MediaPlayer mp = MediaPlayer.create(this, R.raw.example);

For my buttons onClick methods. When I put mp.start(); in onClick Listener, my app crashes.

This is my code:

public class Activity2 extends AppCompatActivity {
private Button button3;
private Button entrycity;

private static final String NAME = "name";
private boolean isEnabled;
private SharedPreferences sharedPreferences;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

    setContentView(R.layout.activity_2);

    button3 = findViewById(R.id.button3);
    button3.setOnClickListener(onButton1Click);
    entrycity = findViewById(R.id.entrycity);
    entrycity.setOnClickListener(onButton2Click);


    sharedPreferences = getSharedPreferences(NAME, MODE_PRIVATE);
    isEnabled = sharedPreferences.getBoolean(winflagi.IS_ENABLED, false);
    entrycity.setEnabled(isEnabled);
    if (isEnabled){
        entrycity.setBackgroundResource(R.drawable.oval);

    }
    else {
        entrycity.setBackgroundResource(R.drawable.oval3);
    }
}

private View.OnClickListener onButton1Click = new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        startActivity(new Intent(Activity2.this, flagi1.class));

    }
};

private View.OnClickListener onButton2Click = new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        startActivity(new Intent(Activity2.this, cities1.class));
    }
};

}

Share the code where you are putting `mp.start();` and logcat error. — Kunu, Oct 04 '18 at 12:51
See this [https://stackoverflow.com/a/19464998/3022836](https://stackoverflow.com/a/19464998/3022836) — Kunu, Oct 04 '18 at 12:56
Possible duplicate of [Media Player start stop start](https://stackoverflow.com/questions/20563729/media-player-start-stop-start) — Faysal Ahmed, Oct 04 '18 at 12:58
From my logcat --> Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.Resources android.content.Context.getResources()' on a null object reference — Mr.Cheese, Oct 04 '18 at 12:58
I still can't see `getResources()` and `mp.start` inside your code. So either you are posting wrong code or incomplete code. — Kunu, Oct 04 '18 at 13:18

score 1 · Answer 1 · edited Oct 04 '18 at 13:17

1

final MediaPlayer mp = MediaPlayer.create(this, R.raw.soho);

button3.setOnClickListener(new OnClickListener(){

    public void onClick(View v) {
        mp.start();
    }
});

//here "R.raw.soho" is your music file

edited Oct 04 '18 at 13:17

Sahdeep Singh

1,342
1
13
34

answered Oct 04 '18 at 13:09

Kanzariya Hardik

156
8

How can I use MediaPlayer for my button onClick?

1 Answers1