(libgdx学习)Net的使用

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在做这个例子的时候,记得把android中的联网的权限加上去 <uses-permission android:name="android.permission.INTERNET" />

一、初始化及常用的API

HttpRequest httpRequest = new HttpRequest(Net.HttpMethods.GET);httpRequest.setUrl("http://www.cnlie.cn/uploads/allimg/c130624/13H0D049B340-1c53.jpg");Gdx.net.sendHttpRequest(httpRequest, MyGame.this);

final InputStream inputStream = httpResponse.getResultAsStream();
netTexture = new Texture(new FileHandle("image.png"){
@Override
public InputStream read() {

return inputStream;
}
});
二、应用举例

package com.example.groupactiontest;import java.io.InputStream;import com.badlogic.gdx.ApplicationListener;import com.badlogic.gdx.Gdx;import com.badlogic.gdx.Net;import com.badlogic.gdx.Net.HttpRequest;import com.badlogic.gdx.Net.HttpResponse;import com.badlogic.gdx.Net.HttpResponseListener;import com.badlogic.gdx.files.FileHandle;import com.badlogic.gdx.graphics.GL10;import com.badlogic.gdx.graphics.Texture;import com.badlogic.gdx.graphics.g2d.SpriteBatch;import com.badlogic.gdx.graphics.g2d.TextureRegion;import com.badlogic.gdx.scenes.scene2d.InputEvent;import com.badlogic.gdx.scenes.scene2d.InputListener;import com.badlogic.gdx.scenes.scene2d.Stage;import com.badlogic.gdx.scenes.scene2d.ui.ImageButton;import com.badlogic.gdx.scenes.scene2d.utils.TextureRegionDrawable;public class MyGame implements ApplicationListener,HttpResponseListener {Stage stage;ImageButton button;Texture texture;Texture netTexture;SpriteBatch batch;@Overridepublic void handleHttpResponse(HttpResponse httpResponse) {final InputStream  inputStream = httpResponse.getResultAsStream();netTexture.setEnforcePotImages(false);netTexture = new Texture(new FileHandle("image.png"){@Overridepublic InputStream read() {return inputStream;}});netTexture.setEnforcePotImages(true);}@Overridepublic void failed(Throwable arg0) {System.out.println("联网失败....");}@Overridepublic void create() {stage = new Stage();texture = new Texture(Gdx.files.internal("button.png"));batch = new SpriteBatch();TextureRegion buttonUp = new TextureRegion(texture,0, 0, 210, 60);TextureRegion buttonDown = new TextureRegion(texture,210,0,210,60);TextureRegionDrawable up = new TextureRegionDrawable(buttonUp);TextureRegionDrawable down = new TextureRegionDrawable(buttonDown);button = new ImageButton(up, down);button.addListener(new InputListener(){@Overridepublic boolean touchDown(InputEvent event, float x, float y,int pointer, int button) {HttpRequest httpRequest = new HttpRequest(Net.HttpMethods.GET);httpRequest.setUrl("http://www.cnlie.cn/uploads/allimg/c130624/13H0D049B340-1c53.jpg");Gdx.net.sendHttpRequest(httpRequest, MyGame.this);return true;}});stage.addActor(button);Gdx.input.setInputProcessor(stage);}@Overridepublic void dispose() {// TODO Auto-generated method stub}@Overridepublic void pause() {// TODO Auto-generated method stub}@Overridepublic void render() {Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);if(netTexture != null){batch.begin();batch.draw(netTexture, 200, 150);batch.end();}stage.act();stage.draw();}@Overridepublic void resize(int arg0, int arg1) {// TODO Auto-generated method stub}@Overridepublic void resume() {// TODO Auto-generated method stub}}

三、效果图

四、源码下载

http://download.csdn.net/detail/caihongshijie6/7039945

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