小编use*_*718的帖子

我正在尝试更改像素图并渲染它,但修改后的像素不会显示在屏幕上.我不确定Pixmap是否是最好的方法.任何人都可以向我解释我的错误在下面的代码中？谢谢

package com.me.mygdxgame;
import com.badlogic.gdx.ApplicationListener;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.GL10;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.Pixmap;
import com.badlogic.gdx.graphics.Pixmap.Format;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.Texture.TextureFilter;
import com.badlogic.gdx.graphics.g2d.Sprite;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.utils.Array;

public class MyGdxGame implements ApplicationListener {

    private OrthographicCamera camera;
    private SpriteBatch batch;
    private Pixmap _pixmap;
    private int _width;
    private int _height;
    private Texture  _pixmapTexture;
    private Sprite _pixmapSprite;
    private int _x = 0;
    private int _y = 0;

    @Override
    public void create() {      
        float w = Gdx.graphics.getWidth();
        float h = Gdx.graphics.getHeight();

        camera …