开发笔记:深入解析libgdx游戏框架中的开源Java系统控件Button类的专题15

1 package com.mygdx.syscontrol;
2
3 import com.badlogic.gdx.scenes.scene2d.InputEvent;
4 import com.badlogic.gdx.scenes.scene2d.utils.ClickListener;
5 /**
6 * 我的点击事件类
7 * @author Jack(乐智)
8 * @blog dtblog.cn
9 * @qq 984137183
10 */
11 public class MyClick extends ClickListener {
12
13 @Override
14 public boolean touchDown(InputEvent event, float x, float y, int pointer, int button) {
15 //打印
16 System.out.println("Button:"+button);
17 return true;
18 }
19
20 }

1 package com.mygdx.syscontrol;
2
3 import com.badlogic.gdx.ApplicationAdapter;
4 import com.badlogic.gdx.Gdx;
5 import com.badlogic.gdx.graphics.GL20;
6 import com.badlogic.gdx.graphics.Texture;
7 import com.badlogic.gdx.graphics.g2d.TextureRegion;
8 import com.badlogic.gdx.scenes.scene2d.Stage;
9 import com.badlogic.gdx.scenes.scene2d.ui.Button;
10 import com.badlogic.gdx.scenes.scene2d.ui.Skin;
11 import com.badlogic.gdx.scenes.scene2d.utils.TextureRegionDrawable;
12 /**
13 * 使用Button
14 * @author Jack(乐智)
15 * @blog dtblog.cn
16 * @qq 984137183
17 */
18 public class TestButton extends ApplicationAdapter {
19 //声明Skin对象
20 private Skin skin;
21 //声明按钮A
22 private Button buttonA;
23 //声明按钮B
24 private Button buttonB;
25 //声明舞台
26 private Stage stage;
27 //按钮抬起时纹理
28 private Texture btnUp;
29 //按钮按下时纹理
30 private Texture btnDown;
31 //声明监听器
32 private MyClick click;
33
34 @Override
35 public void create() {
36 //实例化skin对象
37 skin=new Skin(Gdx.files.internal("button/test.json"));
38 //实例化舞台
39 stage=new Stage();
40 //初始化按钮抬起纹理
41 btnUp=new Texture(Gdx.files.internal("button/btnUp.png"));
42 //初始化按钮按下纹理
43 btnDown=new Texture(Gdx.files.internal("button/btnDown.png"));
44 //抬起纹理样式
45 TextureRegionDrawable btn_up=new TextureRegionDrawable(new TextureRegion(btnUp));
46 //按下纹理样式
47 TextureRegionDrawable btn_down=new TextureRegionDrawable(new TextureRegion(btnDown));
48 //实例化按钮A
49 buttOnA=new Button(skin.get("style", Button.ButtonStyle.class));
50 //初始化按钮B
51 buttOnB=new Button(btn_up,btn_down);
52 //初识化监听器
53 click=new MyClick();
54 //添加监听器
55 buttonA.addListener(click);
56 buttonB.addListener(click);
57 //设置按钮b的位置
58 buttonB.setPosition(100, 100);
59 //添加按钮b到舞台
60 stage.addActor(buttonB);
61 //添加按钮a到舞台
62 stage.addActor(buttonA);
63 //注册舞台监听
64 Gdx.input.setInputProcessor(stage);
65 }
66
67 @Override
68 public void render() {
69 Gdx.gl.glClearColor(1, 1, 1, 1);
70 Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
71 //更新舞台逻辑
72 stage.act();
73 //绘制舞台内容
74 stage.draw();
75 }
76
77 }