[游戏开发]unity更改背景面板颜色和所有字体颜色和大小

该功能是在取色器的基础上实现的，我的取色器是百度用的别人的，所以就不放了，
如果有需要的可以找我要，我发给你们。然后我会详细介绍一下我的代码，帮助大
家编写自己的功能。

编写代码前，对各个面板添加CanvasGroup这个组件

using UnityEngine;
using UnityEngine.UI;
using UnityEditor;
using System;


public class Change : MonoBehaviour {

	public Button WordBtn;//弹出修改字体面板的按钮
	public GameObject WordPanel;//修改字体的面板
	
	public Button ColorBtn;//弹出修改背景颜色的按钮
	public GameObject ColourPanel;//修改背景的面板

	//需要修改的面板
	public GameObject playLeftPanel;
	public GameObject playRightPanel;
	public GameObject topPanel;
	public GameObject bottomPanel;

	//取色器的颜色
	public GameObject ColorShow;//背景所取的颜色
	public GameObject WordColorShow;//字体所取的颜色

	public Button WordSureBtn;//字体确认按钮
	public Button WordDelBtn;//字体取消按钮
	public InputField WordSize;//字体大小输入框

	public Button SureBtn;//背景确认按钮
	public Button DelBtn;//背景取消按钮
//为各按钮添加监听事件，自己对应
	void Start () 
	{
		WordBtn.onClick.AddListener(onWordBtnClicked);
		ColorBtn.onClick.AddListener(onColorBtnClicked);

		WordSureBtn.onClick.AddListener(onWordSureBtnClicked);
		WordDelBtn.onClick.AddListener(onWordDelBtnClicked);
		SureBtn.onClick.AddListener(onSureBtnClicked);
		DelBtn.onClick.AddListener(onDelBtnClicked);
	}
	//打开字体修改面板
	void onWordBtnClicked()
	{
		WordPanel.GetComponent<CanvasGroup>().alpha = 1;
	}

	//打开颜色改变面板
    void onColorBtnClicked()
	{
		ColourPanel.GetComponent<CanvasGroup>().alpha = 1;
	}
	//确认修改字体
	void onWordSureBtnClicked()
	{
		Image wordcolor = GameObject.Find("WordColorShow").GetComponent<Image>();
		string a = WordSize.text;
		Debug.Log(a);
		Transform canvas = GameObject.Find("Canvas").transform;
		if (!canvas)
		{
			Debug.Log("NO Canvas");
			return;
		}
		//将所有文本写入数组
		Transform[] tArray = canvas.GetComponentsInChildren<Transform>();
		//遍历数组，为每个文本设置字体大小和颜色
		for (int i = 0; i < tArray.Length; i++)
		{
			Text t = tArray[i].GetComponent<Text>();
			if (t)
			{
				Undo.RecordObject(t, t.gameObject.name);
				t.color = wordcolor.color;
				t.fontSize = int.Parse(a.ToString());
                EditorUtility.SetDirty(t);
			}
		}
		Debug.Log("Succed");
		WordPanel.GetComponent<CanvasGroup>().alpha = 0;
	}
	//关闭字体设置面板
	void onWordDelBtnClicked()
	{
		WordPanel.GetComponent<CanvasGroup>().alpha = 0;
	}

	//设置背景颜色
	void onSureBtnClicked()
	{
		Image color = GameObject.Find("ColorShow").GetComponent<Image>();
		Image right = GameObject.Find("playRightPanel").GetComponent<Image>();
		right.color = color.color;
		Image left = GameObject.Find("playLeftPanel").GetComponent<Image>();
		left.color = color.color;
		Image bottom = GameObject.Find("bottomPanel").GetComponent<Image>();
		bottom.color = color.color;
		Image top = GameObject.Find("topPanel").GetComponent<Image>();
		top.color = color.color;
		ColourPanel.GetComponent<CanvasGroup>().alpha = 0; 
	}
	//关闭颜色选择面板
	void onDelBtnClicked()
	{
		ColourPanel.GetComponent<CanvasGroup>().alpha = 0;
	}
}

其他问题还有询问。