libgdx中ImageTextButton的闪烁

Question

我正在使用他们的Scene2d.ui包在libgdx中创建一个商店阶段。当我看到一些较大版本的按钮出现在较小的按钮后面时，我看到这个非常奇怪的闪烁：

较大的背景按钮闪烁，而前面的按钮看起来完全正常。背景的不是可点击的，但前面的是 - 它们看起来完全正常。

以下是相关代码：

private void init(Skin skin) {
   this.skin = skin;

   boyTexture = new Texture(Gdx.files.internal("images/character.png"));
   catTexture = new Texture(Gdx.files.internal("images/character_cat_girl.png"));
   hornTexture = new Texture(Gdx.files.internal("images/character_horn_girl.png"));
   pinkTexture = new Texture(Gdx.files.internal("images/character_pink_girl.png"));
   queenTexture = new Texture(Gdx.files.internal("images/character_queen_girl.png"));

   // set root table
   table = new Table();
   table.setFillParent(true);
   addActor(table);

   table.add(new Label("Characters: ", skin, "default")).padLeft(10).colspan(2);
   table.row();
   ButtonGroup characterGroup = new ButtonGroup();
   characterGroup.setMaxCheckCount(1);
   Button boyButton = createImageTextButton("Plain Boy", boyTexture);
   table.add(boyButton);
   Button catButton = createImageTextButton("Cat Girl", catTexture);
   table.add(catButton);
   table.row();
   Button hornButton = createImageTextButton("Horn Girl", hornTexture);
   table.add(hornButton);
   Button pinkButton = createImageTextButton("Pink Girl", pinkTexture);
   table.add(pinkButton);
   table.row();
   Button queenButton = createImageTextButton("Queen", queenTexture);
   table.add(queenButton).colspan(2);

   //addAction(Actions.sequence(Actions.alpha(1f), Actions.fadeIn(1)));
}

private Button createImageTextButton(String label, Texture texture) {
   ImageTextButton button = new ImageTextButton(label, skin, "default");
   button.getImage().setDrawable(new SpriteDrawable(new Sprite(texture)));
   return button;
}

起初我认为这与过渡行动有关，但正如你所看到的，我已将它们评论出来并且它仍在发生。

我还认为只是ImageTextButton存在问题，但我更改了createImageTextButton方法以返回普通TextButton。它仍然有一个闪烁，但按钮没有在背景中放大 - 它们看起来在两侧闪烁，但大小与前景相同。

以下是评论中所要求的构造函数：

public Store(Skin skin) {
    super();
    init(skin);
}

public Store(Viewport viewport, Skin skin) {
    super(viewport);
    init(skin);
}

public Store(Viewport viewport, Batch batch, Skin skin) {
    super(viewport, batch);
    init(skin);
}

我在MainGame课程中创建舞台时使用的是最后一个。

public class MainGame extends ApplicationAdapter {

    public static final int MIN_WIDTH = 480;
    public static final int MIN_HEIGHT = 800;

    public static SpriteBatch batch;
    public static GameStage game;
    public static Store store;
    public static Skin skin;
    public static Viewport viewport;
    public static Stage stage;

    @Override
    public void create() {
        viewport = new ExtendViewport(MIN_WIDTH, MIN_HEIGHT);
        batch = new SpriteBatch();
        initSkin();
        game = new GameStage(viewport, batch, skin);
        store = new Store(viewport, batch, skin);
        setStage(game);
    }

    ...

    @Override
    public void render() {
        stage.act(Gdx.graphics.getDeltaTime());
        stage.draw();
    }

    @Override
    public void resize(int width, int height) {
        viewport.update(width, height, true);
    }

    ...

    public static void setStage(Stage stage) {
        MainGame.stage = stage;
        Gdx.input.setInputProcessor(stage);
    }
}