libgdx可点击的图片不起作用 [英] libgdx clickable image not working

问题描述

我在libgdx中有一个菜单屏幕，并且有一个文本按钮可以启动像这样的新游戏.

I have a menu screen in libgdx and I had a text button that started a new game like this.

textButton.addListener(new ChangeListener() {
    public void changed (ChangeEvent event, Actor actor) {
        g.setScreen( new level1(g));
    }
});

它看起来像废话，所以我将其更改为图像.

It looked like crap so I changed it to an image.

playbuttontexture = new Texture(Gdx.files.internal("data/playbutton.png"));
playbuttontexture.setFilter(TextureFilter.Linear, TextureFilter.Linear);

TextureRegion playbuttonregion = new TextureRegion(playbuttontexture, 0, 0, 512, 256);//powers of 2

playbutton = new Image(playbuttonregion);
playbutton.setSize(512,256);
playbutton.setBounds(width/2-playbutton.getWidth()/2, height/2-playbutton.getHeight()/2, 512, 256);
//playbutton.setOrigin(playbutton.getWidth()/2, playbutton.getHeight()/2);
playbutton.setPosition(width/2-playbutton.getWidth()/2, height/2-playbutton.getHeight()/2);

和

playbutton.addListener(new ChangeListener() {
    public void changed (ChangeEvent event, Actor actor) {
        g.setScreen( new level1(g));
    }
});

现在，当我单击它时，什么都没有发生?我在做什么错了?

Now when I click it nothing happens? What am I doing wrong?

推荐答案

此处的问题是Image不再触发changed(...)事件.仅当状态从单击"更改为未单击"以及相反时，您才使用此TextButton触发此事件.正如JavaDoc所述，它在其他情况下也可以触发，因为它是一种通用"事件，但因参与者而异.

The problem here is that Image does not fire a changed(...) event anymore. This event is only fired by the TextButton you've used before when the status changes from clicked to not-clicked and the other way around. It can also be fired in other cases, since it is kind of a "generic" event, as the JavaDoc states, but that varies from actor to actor.

将其更改为ClickListener并改用clicked(...)方法.此事件应由scene2d.ui程序包中的所有参与者触发.

Change it to a ClickListener and use the clicked(...) method instead. This event should be fired by all actors in the scene2d.ui package.

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