MainActivity.java

package com.ptrprograms.mediasessionwithmediastylenotification;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;

public class MainActivity extends Activity {

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

        Intent intent = new Intent( getApplicationContext(), MediaPlayerService.class );
        intent.setAction( MediaPlayerService.ACTION_PLAY );
        startService( intent );
    }
}