mod: 异常状态样式

lib/common/widgets/no_data.dart

@@ -0,0 +1,31 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_svg/flutter_svg.dart';
+
+class NoData extends StatelessWidget {
+  const NoData({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return SliverToBoxAdapter(
+      child: SizedBox(
+        height: 400,
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.center,
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            SvgPicture.asset(
+              "assets/images/error.svg",
+              height: 200,
+            ),
+            const SizedBox(height: 20),
+            Text(
+              '没有数据',
+              textAlign: TextAlign.center,
+              style: Theme.of(context).textTheme.titleSmall,
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}