feat:更新UI颜色

lib/views/login.dart

@@ -36,7 +36,7 @@ class _LoginPage extends State<LoginPage> {
   Future<void> _loadRememberState() async {
     bool? isRemember = await SPUtil.getBool('isRemember');
     if (isRemember) {
-     setState(() {
+      setState(() {
         _isRemember = true;
         _username = SPUtil.getString('username');
         _password = SPUtil.getString('password');
@@ -81,34 +81,11 @@ class _LoginPage extends State<LoginPage> {
       backgroundColor: Colors.grey[100],
       body: Form(
         key: _formKey,
-        autovalidateMode: AutovalidateMode.onUserInteraction,
+        // autovalidateMode: AutovalidateMode.onUserInteraction,
         child: Column(
           children: [
             // 可滚动的主要内容区域
-            Expanded(
-              child: ListView(
-                padding: const EdgeInsets.symmetric(horizontal: 20),
-                children: [
-                  const SizedBox(height: kToolbarHeight),
-                  buildTitle(),
-                  const SizedBox(height: 60),
-                  buildUsernameTextField(),
-                  const SizedBox(height: 20),
-                  buildPasswordTextField(context),
-                  Row(
-                    mainAxisAlignment: MainAxisAlignment.spaceBetween,
-                    crossAxisAlignment: CrossAxisAlignment.center,
-                    children: [
-                      buildRememberPasswordCheckbox(context), // 记住密码（左对齐）
-                      buildForgetPasswordText(context),
-                    ],
-                  ),
-
-                  const SizedBox(height: 20), // 调整与登录按钮的间距
-                  buildLoginButton(context),
-                ],
-              ),
-            ),
+            Expanded(child: buildLoginForm()),
 
             // 固定在底部的其他登录选项区域
             Padding(
@@ -137,6 +114,31 @@ class _LoginPage extends State<LoginPage> {
     );
   }
 
+  Widget buildLoginForm() {
+    return ListView(
+      padding: const EdgeInsets.symmetric(horizontal: 20),
+      children: [
+        const SizedBox(height: kToolbarHeight),
+        buildTitle(),
+        const SizedBox(height: 60),
+        buildUsernameTextField(),
+        const SizedBox(height: 20),
+        buildPasswordTextField(context),
+        Row(
+          mainAxisAlignment: MainAxisAlignment.spaceBetween,
+          crossAxisAlignment: CrossAxisAlignment.center,
+          children: [
+            buildRememberPasswordCheckbox(context), // 记住密码（左对齐）
+            buildForgetPasswordText(context),
+          ],
+        ),
+
+        const SizedBox(height: 20), // 调整与登录按钮的间距
+        buildLoginButton(context),
+      ],
+    );
+  }
+
   Widget buildUsernameTextField() {
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,