java - libGDX 中的计时器错误

Question

我在计时器中的new Task () 遇到问题。编译器仍然在new Task()处发现错误

Error:(52, 28) error: cannot find symbol class Task

我不知道为什么会发生这种情况。

我在 Android Studio 中编程。

这是我的代码:

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.utils.Timer;

public class flashgame extends ApplicationAdapter {
    SpriteBatch batch;
    Texture logo;
    Timer ti;
    BitmapFont font;
    int sch;
    int scw;
    String sc_he;
    String sc_wi;
    int imgh;
    int imgw;

    @Override
    public void create () {
        batch = new SpriteBatch();
        sch = Gdx.graphics.getHeight();
        sc_he = sch+"";
        scw = Gdx.graphics.getWidth();
        sc_wi = scw+"";
        logo = new Texture(Gdx.files.internal("logo.png"));
        imgsize(logo);
        font = new BitmapFont();
        font.setColor(Color.RED);
    }

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

        Timer.schedule(new Task() {
            @Override
            public void run() {
                batch.begin();
                batch.setColor(0, 0, 0, 1);
                batch.draw(logo, scw / 2 - imgw / 2, sch / 2 - imgh / 2);
                batch.end();
            }
        }, 1.0 / 60.0);
    }

    public void imgsize (Texture id) {
        imgh = id.getHeight();
        imgw = id.getWidth();
    }
}

Answer 1

AIDE 中出现一些错误，行中:

Timer.schedule(new Timer.Task() { ... }, 1.0 / 60.0);

1.0/60.0 返回 double，但构造函数等待 float。这对我有用:

Timer.schedule(new Timer.Task() { ... }, 1.0f / 60.0f );