java - libGDX FitViewport 不适用于 Android

Question

我有这种方法可以在 Windows 桌面上按预期工作和扩展:

public class MyGdxGame extends ApplicationAdapter {
    SpriteBatch m_batch;
    FitViewport m_viewport;
    OrthographicCamera m_camera;

    private Texture img;
    private BitmapFont m_font;


    @Override
    public void create() {
        Gdx.app.setLogLevel(Application.LOG_NONE);

        m_batch = new SpriteBatch();

        m_camera = new OrthographicCamera();
        m_camera.position.set(640 / 2f, 400 / 2f, 0);
        m_camera.update();
        m_viewport = new FitViewport(640, 400, m_camera);

        img = new Texture("badlogic.jpg");

        m_font = new BitmapFont();
    }

    @Override
    public void render() {
        Gdx.gl.glClearColor(1, 0, 0, 1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
        m_batch.begin();
        m_font.draw(m_batch, "X000000000000000000000000000000000000000000000000000000000000000000000000000000X", 0, m_camera.viewportHeight);
        m_batch.draw(img, 0, 0);
        m_batch.end();
    }

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

初始窗口大小:

更大的窗口尺寸

但如果我部署到 Android(在本例中为 Nexus 7 2013)，它似乎无法正确扩展:

为什么不起作用？如何解决？

Answer 1

您忘记在 Sprite 批处理中使用相机。调用

spriteBatch.setProjectionMatrix(viewport.getCamera().combined);

在 spriteBatch.begin(); 之前。