feat:增加加载中组件

lib/utils/index.dart

@@ -17,9 +17,23 @@ String formatDateTime(DateTime dateTime, [String format = 'yyyy-MM-dd']) {
 }
 
 /// 通用列表转换函数
-List<T> convertListResponse<T>(dynamic data, T Function(Map<String, dynamic>) fromJson) {
+List<T> convertListResponse<T>(
+  dynamic data,
+  T Function(Map<String, dynamic>) fromJson,
+) {
   if (data is List) {
     return data.map((item) => fromJson(item as Map<String, dynamic>)).toList();
   }
-  throw FormatException('Expected a list of items for conversion, but got ${data.runtimeType}');
-}
+  throw FormatException(
+    'Expected a list of items for conversion, but got ${data.runtimeType}',
+  );
+}
+
+List<String> convertListStringResponse(dynamic data) {
+  if (data is List) {
+    return data.map((item) => item.toString()).toList();
+  }
+  throw FormatException(
+    'Expected a list of items for conversion, but got ${data.runtimeType}',
+  );
+}