Question

我使用Maven快照存储库中的最新libGDX版本。

我的主菜单屏幕类如下。请注意由于最新的libGDX快照中的API更改而必须注释掉的代码。

public class MainMenuScreen implements Screen {

    @Override
    public void resize(int width, int height) {
        stage.setViewport(new ScreenViewport(cam));
        // stage.setViewport(width, height, true); <- Method signature changed
    }

    @Override
    public void show() {
        batch = new SpriteBatch();
        stage = new Stage();
        cam = new OrthographicCamera(Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
        cam.position.set(Gdx.graphics.getWidth() / 2, Gdx.graphics.getHeight() / 2, 0);
        cam.setToOrtho(false, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
        // stage.setCamera(cam); <- Method no longer exists
        Gdx.input.setInputProcessor(stage);

        // Button is an Actor subclass.
        final Button playButton = new Button(Assets.getPlayButtonTexture(), positions.playOut);
        stage.addActor(playButton);
        playButton.addListener(new InputListener() {
            @Override
            public boolean touchDown(InputEvent event, float x, float y, int pointer, int button) {
                // This event no longer fires when I tap playButton!
            }
        });
    }

    // ...

    private Stage stage;
    private SpriteBatch batch;
    private OrthographicCamera cam;
}

正如您在touchDown中的评论中所看到的那样，该事件不再被解雇。

我需要更改代码的哪一部分以允许playButton actor在最近的libGDX更改之前接收touchDown个事件？

Answer 1

解决方案：

stage = new Stage();
stage.setCamera(cam);

变为

stage = new Stage(new ScreenViewport(cam));

和

stage.setViewport(width, height, true);

变为

stage.getViewport().update(width, height, true);

在libGDX API更改后，舞台上的Actor不再接收touchDown

1 个答案: