libGDX我应该在哪里使用dispose /如何使对象可抛弃？

Question

I would like to know:

1. I have a Stage and it holds an Actor class. Do I have to disopse the Texture and Sprite?

    public class SimpleImage extends Image { protected Sprite sprite; public SimpleImage(FileHandle file) { super(); sprite = new Sprite(new Texture(file)); } @Override public void draw(Batch batch, float parentAlpha) { super.draw(batch, parentAlpha); sprite.draw(batch); batch.setColor(this.getColor()); } @Override public void act(float delta) { super.act(delta); } @Override protected void positionChanged() { super.positionChanged(); sprite.setPosition(getX(), getY()); } } 

2. How to make obj disposable? In the Java libs are two: MediaDisposer.Disposable and MediaDisposer.ResourceDisposer.

3. When do I need to make a obj disposable?

Answer 1

You probably want to apply separation of concerns . Your SimpleImage class should not have to care about managing assets. As such, you should not create the Texture in your SimpleImage class in the first place. And thus you shouldn't have to dispose it.

Managing assets it usually done by using an AssetManager .

Also, you should pack your images into a single Texture . Meaning that you can't just use one Texture per SimpleImage , but instead would use one Texture for multiple SimpleImage s (or other classes that need an image).

So you should reconsider your approach. That said, let me answer your questions.

1. You need to dispose everything that implements the Disposable interface. Texture implements the Disposable interface, Sprite doesn't.

2. If you want to make your object implement the Disposable interface then make it implement the Disposable interface. It's com.badlogic.gdx.utils.Disposable if you're having trouble importing it. It's a libGDX interface and has nothing to do with MediaDisposer.

3. You could make an object disposable when it is responsible for disposing resources. Typically this means that is responsible for calling the .dispose() method on member objects it created. You don't have to make them disposable though, as long as you make sure that you dispose the resources you are creating, then it's fine.