yichael_smartbow/Assets/BowArrow/Scripts/View/SideTipView.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using JCUnityLib;

public class SideTipView : ViewBase
{
    GameObject sideTip;
    Text sideTipText;
    List<string> tipStrList = new List<string>(); 
    static SideTipView ins;

    void Awake()
    {
        ins = this;
        sideTip = transform.Find("SideTip").gameObject;
        sideTipText = sideTip.GetComponentInChildren<Text>();
    }

    void OnDestroy()
    {
        if (ins == this) ins = null;
    }

    void _ShowTip(string text, Color color)
    {
        string c = "white";
        if (color == Color.yellow) c = "yellow";
        string s = 
            $"<color=#BBFFFF>{System.DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")}</color>\n" +
            $"<color={c}>{text}</color>";
        tipStrList.Add(s);
        sideTipText.text = string.Join("\n", tipStrList);
        if (tipStrList.Count == 1) sideTip.SetActive(true);
        StartCoroutine(AutoDestroy());
    }

    IEnumerator AutoDestroy()
    {
        yield return new WaitForSeconds(10.0f);
        tipStrList.RemoveAt(0);
        sideTipText.text = string.Join("\n", tipStrList);
        if (tipStrList.Count == 0) sideTip.SetActive(false);
    }

    public static void ShowTip(string text, Color color)
    {
        if (!ins) Instantiate(Resources.Load("Prefabs/Views/SideTipView"));
        ins?._ShowTip(text, color);
    }
}