libgdx：手机上的错误触摸处理

Question

前言：在桌面上一切正常。 当我在手机上测试我的项目时出现问题

我开始游戏。这是屏幕上的一些按钮：button_1、button_2、button_3。例如，我正在触摸 button_1：在应用程序启动后第一次触摸完全没有发生任何事情。如果我再次触摸 button_1，它工作正常 - > touchDown（按钮图像下降 10 像素）然后 touchUp（按钮图像上升 10 像素并运行按钮代码）。但是，如果我改为触摸另一个按钮，例如 button_2，则只会发生 button_1 的 touchDown（button_1 图像下降 10px 及以上），没有别的。每个按钮都会发生这种情况，所以我需要触摸按钮两次才能使其工作。

按钮类：

public class myButton {

private float x, y, width, height;
private Texture buttonUp;
public Rectangle bounds;

private boolean isPressed = false;

public myButton(float x, float y, float width, float height, Texture buttonUp) {
    this.x = x;
    this.y = y;
    this.width = width;
    this.height = height;
    this.buttonUp = buttonUp;

    bounds = new Rectangle(x, y, width, height);
}

public boolean isClicked(int screenX, int screenY) {
    return bounds.contains(screenX, screenY);
}

public void draw(SpriteBatch batch) {
    if (isPressed) {
        batch.draw(buttonUp, x, y - 10, width, height);
    } else {
        batch.draw(buttonUp, x, y, width, height);
    }
}

public boolean isTouchDown(int screenX, int screenY) {
    if (bounds.contains(screenX, screenY)) {
        isPressed = true;
        return true;
    }
    return false;
}

public boolean isTouchUp(int screenX, int screenY) {
    if (bounds.contains(screenX, screenY) && isPressed) {
        isPressed = false;
        return true;
    }
    isPressed = false;
    return false;
}

}

输入处理程序：

@Override
    public boolean touchDown(int screenX, int screenY, int pointer, int button) {

        screenX = (int) touchPos.x;
        screenY = (int) touchPos.y;

        playButton.isTouchDown(screenX, screenY);

        return true;
    }

---

    @Override
    public boolean touchUp(int screenX, int screenY, int pointer, int button) {

        screenX = (int) touchPos.x;
        screenY = (int) touchPos.y;

        if (playButton.isTouchUp(screenX, screenY)) {
            start();
            return true;
        }
}

在 create() 方法中我得到了：

touchPos = new Vector3();

Gdx.input.setInputProcessor(new InputHandlerer());

camera = new OrthographicCamera();
viewport = new FitViewport(1080, 1920, camera);

在 render() 方法中我得到了：

touchPos.set(Gdx.input.getX(), Gdx.input.getY(), 0);
camera.unproject(touchPos);

batch.setProjectionMatrix(camera.combined);

我再说一遍 - 在桌面上每个按钮都能正常工作，但在手机上却不行。可能是什么问题？

Answer 1

也许在桌面上可以正常工作，因为您一次只能单击一次，而不是在手机上，您应该管理指针，如果您不想使用多点触控也是如此。

在你的 InputHandlerer 类上你必须初始化：

private int button1pointer = -1;
private boolean button1isPressed = false;

然后你必须管理你的 tochDown/Up 方法的指针：

@Override
public boolean touchDown(int screenX, int screenY, int pointer, int button) {
for (int i = 0; i < 2; i++) {   //here you can choose how many touches you can manage
    if (Gdx.input.isTouched(i)) {

       screenX = (int) touchPos.x;
       screenY = (int) touchPos.y;

       if (playButton.isTouchDown(screenX, screenY) && (button1pointer != i) && (!button1isPressed)) {
          button1pointer = i;
          button1isPressed = true;
       }
        return true;
    }
}

---

@Override
public boolean touchUp(int screenX, int screenY, int pointer, int button) {

    if (!(Gdx.input.isTouched(pointer)) && (button1pointer == pointer) && (button1isPressed)) {
       button1pointer = -1;
       button1isPressed = false;
       start();
       return true;
    }

}