Problem with animating in android, using batcher.draw in libgdx

Question

I am having a problem with the last part of the GameRenderer class. I call batcher.draw(), and receive this error:

The method draw(Texture, float, float, float, float) in the type SpriteBatch is not applicable for the arguments (Object, float, float, float, float)

This only happens when I try to draw animation; images work fine. How do I fix this?

---

This is my GameRenderer class, which throws the error.

public class GameRenderer {
    private SpriteBatch batcher = new SpriteBatch();

    public void render(float runTime) {
        // Begin SpriteBatch
        batcher.begin();
        // The bird needs transparency.
        batcher.enableBlending();

        // Draw bird at its coordinates. Retrieve the Animation object from
        // AssetLoader
        // Pass in the runTime variable to get the current frame.
        batcher.draw(AssetLoader.birdAnimation.getKeyFrame(runTime),
                x, y, width, height);

        // End SpriteBatch
        batcher.end();  
    }
}

---

Just in case, here is my AssetLoader class:

public class AssetLoader {
    public static Animation birdAnimation;

    public static void load() {
        Texture texture = new Texture(Gdx.files.internal("data/texture.png"));
        texture.setFilter(TextureFilter.Nearest, TextureFilter.Nearest);

        TextureRegion birdDown = new TextureRegion(texture, 136, 0, 17, 12);
        birdDown.flip(false, true);

        TextureRegion bird = new TextureRegion(texture, 153, 0, 17, 12);
        bird.flip(false, true);

        TextureRegion birdUp = new TextureRegion(texture, 170, 0, 17, 12);
        birdUp.flip(false, true);

        TextureRegion[] birds = { birdDown, bird, birdUp };
        birdAnimation = new Animation(0.06f, birds);
        birdAnimation.setPlayMode(Animation.PlayMode.LOOP_PINGPONG);
    }
}

---

The class where i call AssetLoader.load()

public class ZBGame extends Game {
    @Override
    public void create() {
        AssetLoader.load();
        /* Other stuff */
    }
}  

Answer 1

Try changing your last batcher draw in GameRenderer class to

batcher.draw((TextureRegion)AssetLoader.birdAnimation.getKeyFrame(runTime),
                bird.getX(), bird.getY(), bird.getWidth(), bird.getHeight());

Answer 2

The Animation class is generic (see docs) - meaning you should supply the type of object being animated which in your case would be TextureRegion since the keyframes are of type TextureRegion.

This means your code now becomes:

/* Declaration. */
public static Animation<TextureRegion> birdAnimation;

/* In your load() method. */
birdAnimation = new Animation<TextureRegion>(0.06f, birds);