Selectable.interactable

Description

用于启用或禁用对可选择 UI 元素（例如，按钮）进行选择的功能。

使用此类，或在可选择 UI 元素的 Inspector 中启用相应复选框。禁用后，UI 元素将显示为灰色。

//Attach this script to a GameObject.
//Attach a Button (Create>UI>Button) to the Start Button field in the Inspector of your GameObject.
//In Play mode, press space to toggle the interactability of the Button.

using UnityEngine;
using UnityEngine.UI; // required when using UI elements in scripts

public class Try : MonoBehaviour
{
    //Make sure to attach a Button in the Inspector
    public Button startButton;

    void Update()
    {
        //Press the space key to toggle between the Button being interactable or not
        if (Input.GetKeyDown(KeyCode.Space))
        {
            //Toggle interactable state of the Button on and off
            startButton.interactable = !startButton.interactable;
        }
    }
}