修复UI不消失的bug

Assets/Scripts/UI/UITimeTip.cs

@@ -85,8 +85,15 @@ namespace QFramework.Example
             imgTwen = DOTween.To(() => index, v =>
             {
                 index = v;
-                Img.sprite = sprites[index];
+                if (index >= 0 && index < sprites.Count)
-                Img.SetNativeSize();
+                {
+                    Img.sprite = sprites[index];
+                    Img.SetNativeSize();
+                }
+                else
+                {
+                    Debug.LogError("图片数组越界");
+                }
 
             }, endIndex, mData.time);