请参阅有关此Wiki网页 scene2d 在LibGDX。特别是关于输入处理的部分。

See this wiki page about scene2d in LibGDX. Specifically the part about Input handling.

基本上你要覆盖一个在你的演员或多个这些方法：

Basically you have to override one or more of these methods in your Actor:

public boolean touchDown (float x, float y, int pointer) {
    return false;
}

public void touchUp (float x, float y, int pointer) {
}

public void touchDragged (float x, float y, int pointer) {
}

public boolean touchMoved (float x, float y) {
    return false;
}

public boolean scrolled (int amount) {
    return false;
}

public boolean keyDown (int keycode) {
    return false;
}

public boolean keyUp (int keycode) {
    return false;
}

public boolean keyTyped (char character) {
    return false;
}