feat:更新UI颜色

lib/widgets/common/index.dart

@@ -1,6 +1,5 @@
 import 'package:flutter/material.dart';
 import 'package:fluttertoast/fluttertoast.dart';
-// import 'package:fluttertoast/fluttertoast.dart';
 
 Widget formLabelText({required String labelText, bool isRequired = false}) {
   return Text.rich(
@@ -28,6 +27,7 @@ InputDecoration formInputDecoration({
   );
 }
 
+/// 确认按钮样式
 ButtonStyle primaryButtonStyle() {
   return ButtonStyle(
     backgroundColor: WidgetStateProperty.all(Colors.green),
@@ -37,6 +37,7 @@ ButtonStyle primaryButtonStyle() {
   );
 }
 
+/// 取消按钮样式
 ButtonStyle cancelButtonStyle() {
   return ButtonStyle(
     backgroundColor: WidgetStateProperty.all(Colors.grey),
@@ -50,6 +51,22 @@ Text buttonText({required String text}) {
   return Text(text, style: TextStyle(color: Colors.white));
 }
 
+Widget errorImageContainer(double height) {
+  return Container(
+    height: height,
+    color: Colors.grey[200],
+    child: Row(
+      mainAxisAlignment: MainAxisAlignment.center,
+      children: [
+        const Icon(Icons.error, color: Colors.red),
+        const SizedBox(width: 5),
+        const Text("加载失败", style: TextStyle(color: Colors.red)),
+      ],
+    ),
+  );
+}
+
+/// 成功消息
 void showSuccessToast(String message) {
   Fluttertoast.showToast(
     msg: message,
@@ -62,6 +79,7 @@ void showSuccessToast(String message) {
   );
 }
 
+/// 错误消息
 void showErrorToast(String message) {
   Fluttertoast.showToast(
     msg: message,