相关疑难解决方法(0)

我正在尝试使用这行代码更改 UI 按钮上的颜色。

prev.GetComponent<Button>().colors.normalColor = new Color(0.0f, 0.0f, 0.0f, 1.0f);

但我收到这个错误

Assets/_Scripts/OptionSwitch.cs(28,53)：错误CS1612：无法修改“UnityEngine.UI.Selectable.colors”的值类型返回值。考虑将值存储在临时变量中

我尝试在调用按钮和颜色之前将它们存储为变量，但它不会更改错误代码。

编辑：

using UnityEditor;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.EventSystems;
using UnityEngine.Sprites;

public class OptionSwitch : MonoBehaviour {

    ColorBlock colorBlock = new ColorBlock();
    colorBlock.normalColor = new Color(0.0f, 0.0f, 0.0f, 1.0f);

    [MenuItem ("GameObject/UI/Switch")]
    static void Switch(){

        if (GameObject.FindObjectOfType (typeof(Canvas)) != null) {

            Canvas canvas = (Canvas)GameObject.FindObjectOfType (typeof(Canvas));

            // Define Previous Button
            GameObject prev = new GameObject ("Previous", typeof(Button));
            prev.layer = 5;
            prev.AddComponent<Image> ();
            prev.transform.parent = canvas.transform;

            prev.GetComponent<Image> ().sprite …