登录页一些效果，接路线列表页

Assets/Scripts/Utils/Utils.cs

@@ -1,4 +1,5 @@
-using Newtonsoft.Json;
+using DG.Tweening;
+using Newtonsoft.Json;
 using System;
 using System.Collections;
 using System.Collections.Generic;
@@ -16,16 +17,21 @@ namespace Assets.Scripts
         /*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) 
+            var parent = Utils.FindUpParent(game.transform);
+            var toast = parent.Find("ToastContainer");
+            if (toast == null) 
             {
-                toast.GetComponent<Toast>().showToast(JsonConvert.SerializeObject(new
-                {
-                    text,
-                    duration
-                }));
-                //toast.SendMessage("showToast", );
+                var newToast = MonoBehaviour.Instantiate(Resources.Load<GameObject>("UI/Prefab/ToastContainer"));
+                newToast.name = "ToastContainer";
+                newToast.GetComponent<RectTransform>().position = new Vector3(Screen.width / 2, Screen.height / 2, 0);
+                newToast.transform.parent = parent;
+                toast = newToast.transform;
             }
+            toast.GetComponent<Toast>().showToast(JsonConvert.SerializeObject(new
+            {
+                text,
+                duration
+            }));
         }
         /*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*/