fix(UGUICodeGenerator): 添加视图初始化标志防止重复初始化

在InitView方法中添加_isInitView标志位检查，避免UI视图被多次初始化导致潜在问题
#2

Author: AlianBlank

Editor/UGUICodeGenerator.cs

@@ -193,8 +193,16 @@ private static string GenerateCode(GameObject selectedObject, string assetPath)
             PropertyCodeHandler(codeBuilder, nodeInfos);
 
             // 生成初始化方法
+            codeBuilder.AppendLine("\t\tprivate bool _isInitView = false;");
+            codeBuilder.AppendLine();
             codeBuilder.AppendLine("\t\tprotected override void InitView()");
             codeBuilder.AppendLine("\t\t{");
+            codeBuilder.AppendLine("\t\t\tif (_isInitView)");
+            codeBuilder.AppendLine("\t\t\t{");
+            codeBuilder.AppendLine("\t\t\t\treturn;");
+            codeBuilder.AppendLine("\t\t\t}");
+            codeBuilder.AppendLine();
+            codeBuilder.AppendLine("\t\t\t_isInitView = true;");
             codeBuilder.AppendLine("\t\t\tthis.self = this.gameObject;");
             PropertyInitCodeHandler(codeBuilder, nodeInfos);
             codeBuilder.AppendLine("\t\t}");