horizontal ScrollPane with buttons

package net.dermetfan.someLibgdxTests.screens;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Screen;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.scenes.scene2d.InputEvent;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.scenes.scene2d.ui.ScrollPane;
import com.badlogic.gdx.scenes.scene2d.ui.Table;
import com.badlogic.gdx.scenes.scene2d.ui.TextButton;
import com.badlogic.gdx.scenes.scene2d.ui.TextButton.TextButtonStyle;
import com.badlogic.gdx.scenes.scene2d.utils.ClickListener;

public class HorizontalScrollPaneWithButtonsTest implements Screen {

    private Stage stage;

    @Override
    public void render(float delta) {
        Gdx.gl.glClearColor(0, 0, 0, 1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

        stage.act(delta);
        stage.draw();
    }

    @Override
    public void resize(int width, int height) {
        stage.setViewport(width, height, false);
    }

    @Override
    public void show() {
        Gdx.graphics.setDisplayMode(480, 360, false); // just resizing the window to something to show the effect of the ScrollPane (you don't need this at all)
        stage = new Stage();

        Gdx.input.setInputProcessor(stage);

        // create the buttons and their listener
        final TextButton[] buttons = new TextButton[10]; // final because the buttonListener enforces it

        // this is going to handle all the input events from the buttons
        ClickListener buttonListener = new ClickListener() {

            @Override
            public void clicked(InputEvent event, float x, float y) {
                if(event.getListenerActor() == buttons[0]) { // could use a switch statement on event.getListenerActor() here if compiling to java 1.7
                    // button 1 callback
                } else if(event.getListenerActor() == buttons[1]) {
                    // button 2 callback
                } // you get the idea, add the other callbacks yourself
            }
        };

        TextButtonStyle tbs = new TextButtonStyle(); // just some ugly TextButtonStyle, it has no background
        tbs.font = new BitmapFont();
        tbs.font.setScale(10); // just for the eye and to make the buttons bigger to have something for the ScrollPane to scroll
        tbs.fontColor = Color.WHITE;
        tbs.overFontColor = Color.YELLOW;
        tbs.downFontColor = Color.RED;

        for(byte b = 0; b < buttons.length; b++) { // initialize all the buttons
            buttons[b] = new TextButton("" + (b + 1), tbs);
            buttons[b].addListener(buttonListener);
        }

        // put the buttons in a table to position them side by side
        Table table = new Table();
        for(TextButton button : buttons)
            table.add(button).pad(25); // also add some padding for the eye

        // finally put everything in a ScrollPane
        ScrollPane scrollPane = new ScrollPane(table); // A ScrollPane doesn't take multiple Actors, but just one that is scrolls. That's why we need a table to put the buttons in.
        scrollPane.setFillParent(true); // should be self-explanatory
        scrollPane.setScrollingDisabled(false, true); // only scroll horizontally

        // well obviously put it all on the stage
        stage.addActor(scrollPane);
    }

    @Override
    public void hide() {
        dispose();
    }

    @Override
    public void pause() {
    }

    @Override
    public void resume() {
    }

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

}