java - Atlas does not render images in order[libGDX] -

i using following class render atlas on screen:

public class animationdemo implements applicationlistener {     private spritebatch batch;     private textureatlas textureatlas;     private animation animation;     private float elapsedtime = 0;      @override     public void create() {         batch = new spritebatch();          textureatlas = new textureatlas(gdx.files.internal("data/packone.atlas"));         animation = new animation(1 / 1f, textureatlas.getregions());     }      @override     public void dispose() {         batch.dispose();         textureatlas.dispose();     }      @override     public void render() {         gdx.gl.glclearcolor(0, 0, 0, 1);         gdx.gl.glclear(gl20.gl_color_buffer_bit);          batch.begin();         //sprite.draw(batch);         elapsedtime += gdx.graphics.getdeltatime();         batch.draw(animation.getkeyframe(elapsedtime, true), 0, 0);         batch.end();     }      @override     public void resize(int width, int height) {     }      @override     public void pause() {     }      @override     public void resume() {     } } 

i beginner libgdx, above program images not rendered in order random images appear. earlier using following same . atlas file , working properly:

public class mygdxgame implements applicationlistener {     private spritebatch batch;     private textureatlas textureatlas;     private sprite sprite;     private int currentframe = 1;     private string currentatlaskey = new string("0001");      @override     public void create() {         batch = new spritebatch();          textureatlas = new textureatlas(gdx.files.internal("data/packone.atlas"));         textureatlas.atlasregion region = textureatlas.findregion("0001");         sprite = new sprite(region);           sprite.setposition(gdx.graphics.getwidth() / 2 - sprite.getwidth() / 2, gdx.graphics.getheight() / 2 - sprite.getheight() / 2);         sprite.scale(4.5f);         timer.schedule(new timer.task() {             @override             public void run() {                 currentframe++;                 if (currentframe > 393)                     currentframe = 1;                  // attention! string.format() doesnt work under gwt god knows why...                 currentatlaskey = string.format("%04d", currentframe);                 sprite.setregion(textureatlas.findregion(currentatlaskey));             }         }                 , 0, 1 / 30.0f);     }      @override     public void dispose() {         batch.dispose();         textureatlas.dispose();     }      @override     public void render() {         gdx.gl.glclearcolor(0, 0, 0, 1);         gdx.gl.glclear(gl20.gl_color_buffer_bit);          batch.begin();         sprite.draw(batch);         batch.end();     }      @override     public void resize(int width, int height) {     }      @override     public void pause() {     }      @override     public void resume() {     } } 

any hints might wrong here?

i trying adapt program screen viewport headings in how implement welcome.

edit: .atlas file located here

your atlas file isn't ordered. if call code below, ordered.

regions.sort(new comparator<atlasregion>() {             @override             public int compare(atlasregion o1, atlasregion o2) {                 return integer.parseint(o1.name) > integer.parseint(o2.name) ? 1 : -1;             }         }); 

but i'm still checking why atlas regions isn't ordered.