Here is the code that I mentioned in the LibGDX Android game tutorial. 

package com.thenewboston.buckyblaster;

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.Sprite;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;

public class MyGdxGame extends ApplicationAdapter {

    private SpriteBatch batch;

@Override
public void create () {
        batch = new SpriteBatch();
}

    @Override
    public void dispose() {
        batch.dispose();
    }

    @Override
public void render () {
        Gdx.gl.glClearColor(1,1,1,1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

        batch.begin();
        batch.end();
}

}