libgdx异步加载图片资源
1.PragressBar还是上例中封装的Progress主要代码如下：
package com.jun.prograss;
import android.R.anim;
import com.badlogic.gdx.ApplicationListener;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.assets.AssetManager;
import com.badlogic.gdx.graphics.GL10;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.jun.load.AnimalActor;
public class Progress implements ApplicationListener{
private PrograssBar bar;
private Stage stage;
AnimalActor animal;
AssetManager manager;
boolean hasinit;
@Override
public void create() {
// TODO Auto-generated method stub
bar=new PrograssBar(10, 10);
stage=new Stage(Gdx.graphics.getWidth(), Gdx.graphics.getHeight(), true);
stage.addActor(bar);
// 是泪花AssetManager对象
manager=new AssetManager();
// 传入AssetManager的引用，便于animal的资源初始化，只有在调用initResourse方法时候才进行是泪花
animal=new AnimalActor(manager);
// 加载29帧动画
for(int i=1;i<30;i++){
manager.load("animal/"+i+".png",Texture.class);
}
}
@Override
public void dispose() {
// TODO Auto-generated method stub
bar.dispose();
animal.dispose();
manager.clear();
manager.dispose();
}
@Override
public void pause() {
// TODO Auto-generated method stub
}
@Override
public void render() {
// TODO Auto-generated method stub
Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
Gdx.gl.glClearColor(1f, 1f,1f, 0);
stage.act(Gdx.graphics.getDeltaTime());
stage.draw();
if(!manager.update()){
bar.setProgress(manager.getProgress()*100);
}
if(!hasinit&&manager.update()&&Gdx.input.isTouched()){
stage.removeActor(bar);
System.out.print("-------#$@#%#$%#^%#^#%@"+(animal==null));
animal.initResourse();
System.out.println("#$@#%#$%#^%#^#%@"+(animal==null));
stage.addActor(animal);
hasinit=true;
}
if(!manager.update()){
System.out.println("QueuedAssets:"+manager.getQueuedAssets());
System.out.println("LoadAssets:"+manager.getLoadedAssets());
System.out.println("Progress:"+manager.getProgress());
}
// if(bar.progress<100){
//
// bar.progress+=0.5;
//
//
// }
// if(bar.progress==100){
//
// bar.progress=0;
//
// }
}
@Override
public void resize(int arg0, int arg1) {
// TODO Auto-generated method stub
}
@Override
public void resume() {
// TODO Auto-generated method stub
}
}
2.AnimalActor类主要代码：
package com.jun.load;
import java.util.ArrayList;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.assets.AssetManager;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.Animation;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.scenes.scene2d.Actor;
import com.badlogic.gdx.utils.Disposable;
public class AnimalActor extends Actor implements Disposable{
private ArrayList<Texture> textArray=new ArrayList<Texture>();
private ArrayList<TextureRegion> textReArray=new ArrayList<TextureRegion>();
Animation animation;
TextureRegion[] workFrame;
float stateTime;
TextureRegion currentFrame;
AssetManager manager;
@Override
public void draw(SpriteBatch arg0, float arg1) {
// TODO Auto-generated method stub
stateTime+=Gdx.graphics.getDeltaTime();
// 得到下一帧
currentFrame=animation.getKeyFrame(stateTime, true);
// 以(0,0)绘制为起点，左下角为 0,0 画出动画 大小为 128*128
arg0.draw(currentFrame, 0,0,128,128);
}
public AnimalActor(AssetManager manager){
this.manager=manager;
}
@Override
public Actor hit(float arg0, float arg1) {
// TODO Auto-generated method stub
return this;
}
@Override
public void touchDragged(float x, float y, int pointer) {
// TODO Auto-generated method stub
// super.touchDragged(x, y, pointer);
}
@Override
public void touchUp(float x, float y, int pointer) {
// TODO Auto-generated method stub
// super.touchUp(x, y, pointer);
}
@Override
public boolean touchDown(float x, float y, int pointer) {
// TODO Auto-generated method stub
return false;
}
public void initResourse(){
Texture tex;
int j;
for(int i=1;i<30;i++){
textArray.add(manager.get("animal/"+i+".png", Texture.class));
}
// TODO Auto-generated constructor stub
for(int i=0;i<textArray.size();i++){
tex=textArray.get(i);
// 注意TextureRegion 构造函数的参数
TextureRegion temtex=new TextureRegion(tex);
textReArray.add(temtex);
}
j=textReArray.size();
workFrame=new TextureRegion[j];
for(int i=0;i<j;i++)
workFrame[i]=textReArray.get(i);
//设置的是0.06s一帧
animation = new Animation(0.06f, workFrame);
}
@Override
public void dispose() {
// TODO Auto-generated method stub
for(int i=0;i<textArray.size();i++){
textArray.get(i).dispose();
}
}
}
3.PrograssBar.java主要内容：
package com.jun.prograss;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.scenes.scene2d.Actor;
import com.badlogic.gdx.utils.Disposable;
public class PrograssBar extends Actor implements Disposable {
Texture platform;
Texture bar;
int height;
int width;
float progress;
float powerx,powery;
public PrograssBar(int x,int y){
// super();
this.x=x;
this.y=y;
platform=new Texture(Gdx.files.internal("black.png"));
bar=new Texture(Gdx.files.internal("green.png"));
height=Gdx.graphics.getHeight();
width=Gdx.graphics.getWidth();
// 自己敲代码时候一定要注意800f 400f 后面不带f浮点数标示，不会报错但是进度条一直不出来
powerx=Gdx.graphics.getWidth()/800f;
powery=Gdx.graphics.getHeight()/480f;
}
public void setProgress(float progress){
this.progress=progress;
}
@Override
public void draw(SpriteBatch batch, float arg1) {
// TODO Auto-generated method stub
// batch.draw(platform, (Gdx.graphics.getWidth()-bar.getWidth()*powerx)/2, 0,platform.getWidth()*powerx, platform.getHeight()*powery);
// batch.draw(bar, (Gdx.graphics.getWidth()-bar.getWidth()*powerx)/2,0,bar.getWidth()*progress/100f*powerx, bar.getHeight()*powery);
batch.draw(platform, (Gdx.graphics.getWidth()-bar.getWidth()*powerx)/2, 0,platform.getWidth()*powerx,platform.getHeight()*powery);
batch.draw(bar,(Gdx.graphics.getWidth()-bar.getWidth()*powerx)/2,0,bar.getWidth()*progress/100f*powerx,bar.getHeight()*powery);
}
@Override
public Actor hit(float arg0, float arg1) {
// TODO Auto-generated method stub
return null;
}
@Override
public void dispose() {
// TODO Auto-generated method stub
platform.dispose();
bar.dispose();
}
}
进度条前进结束， 进度条消失移除进度条，点击屏幕 开始播放机器狗动画！！！！！！