主场景迁移

Assets/Scripts/Utils/Toast.cs

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+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UI;
+public class Toast : MonoBehaviour
+{
+    // Start is called before the first frame update
+    void Start()
+    {
+        if (toast!=null) 
+        {
+            //toast.SetActive(false);
+            //txt = toast.transform.Find("Toast").GetComponent<Text>();
+        }
+        //if (txt != null) 
+        //{
+        //    txt.enabled = false;
+        //}
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        
+    }
+    [SerializeField] GameObject toast;
+    [SerializeField] Text txt;
+
+    public void showToast(string json)
+    {
+        JObject JO = (JObject)JsonConvert.DeserializeObject(json);
+        toast.SetActive(true);
+        StartCoroutine(showToastCOR(JO.Value<string>("text"), JO.Value<int>("duration")));
+    }
+
+    private IEnumerator showToastCOR(string text,
+        int duration)
+    {
+        Color orginalColor = txt.color;
+        Color otoastColor = toast.GetComponent<Image>().color;
+        txt.text = text;
+        txt.enabled = true;
+        //Fade in
+        yield return fadeInAndOut(txt, true, 0.5f);
+
+        //Wait for the duration
+        float counter = 0;
+        while (counter < duration)
+        {
+            counter += Time.deltaTime;
+            yield return null;
+        }
+
+        //Fade out
+        yield return fadeInAndOut(txt, false, 0.5f);
+
+        txt.enabled = false;
+        toast.SetActive(false);
+        txt.color = orginalColor;
+        toast.GetComponent<Image>().color = otoastColor;
+    }
+
+    IEnumerator fadeInAndOut(Text targetText, bool fadeIn, float duration)
+    {
+        //Set Values depending on if fadeIn or fadeOut
+        float a, b;
+        if (fadeIn)
+        {
+            a = 0f;
+            b = 1f;
+        }
+        else
+        {
+            a = 1f;
+            b = 0f;
+        }
+
+        Color currentColor = txt.color;
+        Color toastColor = toast.GetComponent<Image>().color;
+        float counter = 0f;
+
+        while (counter < duration)
+        {
+            counter += Time.deltaTime;
+            float alpha = Mathf.Lerp(a, b, counter / duration);
+            toast.GetComponent<Image>().color = new Color(toastColor.r, toastColor.g, toastColor.b, alpha);
+            targetText.color = new Color(currentColor.r, currentColor.g, currentColor.b, alpha);
+            yield return null;
+        }
+    }
+}

Assets/Scripts/Utils/Toast.cs.meta

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Assets/Scripts/Utils/Utils.cs

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+using Newtonsoft.Json;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using UnityEngine;
+using UnityEngine.Networking;
+using UnityEngine.UI;
+
+namespace Assets.Scripts
+{
+    public static class Utils
+    {
+        /*显示简略提示，需要拖Toast的预制件，且保证其他组件名字不是Toast,ToastContainer*/
+        public static void showToast(GameObject game,string text,int duration = 1) 
+        {
+            var toast = Utils.FindUpParent(game.transform).Find("ToastContainer");
+            if (toast!=null) 
+            {
+                toast.GetComponent<Toast>().showToast(JsonConvert.SerializeObject(new
+                {
+                    text,
+                    duration
+                }));
+                //toast.SendMessage("showToast", );
+            }
+        }
+        /*显示简略提示，需要拖Toast的预制件，且保证其他组件名字不是Toast,ToastContainer*/
+
+        /*显示网络图片*/
+        public delegate Coroutine StartCoroutine(IEnumerator routine);
+        public static void DisplayImage(StartCoroutine startCoroutine,RawImage img, string url) 
+        {
+            startCoroutine(DownloadImage(img, url));
+        }
+        static IEnumerator DownloadImage(RawImage img,string MediaUrl)
+        {
+            UnityWebRequest request = UnityWebRequestTexture.GetTexture(MediaUrl);
+            yield return request.SendWebRequest();
+            if (request.isNetworkError || request.isHttpError)
+                Debug.Log(request.error);
+            else
+                img.texture = ((DownloadHandlerTexture)request.downloadHandler).texture;
+        }
+        /*显示网络图片*/
+
+        /*获取最顶层对象*/
+        public static Transform FindUpParent(Transform zi)
+        {
+            if (zi.parent == null)
+                return zi;
+            else
+                return FindUpParent(zi.parent);
+        }
+        /*获取最顶层对象*/
+    }
+}

Assets/Scripts/Utils/Utils.cs.meta

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