feat:增加闪灵功能

lib/widgets/todo_form.dart

@@ -64,7 +64,25 @@ class _TodoFormState extends State<TodoForm> {
           });
         },
         decoration: InputDecoration(
-          labelText: '标题',
+          label: RichText(
+            text: TextSpan(
+              text: '标题',
+              style: TextStyle(
+                color: Colors.grey.shade700,
+                fontSize: 16,
+              ),
+              children: const [
+                TextSpan(
+                  text: '*',
+                  style: TextStyle(
+                    color: Colors.red,
+                    fontSize: 18,
+                    fontWeight: FontWeight.bold,
+                  ),
+                ),
+              ],
+            ),
+          ),
           hintText: '请输入待办事项标题...',
           counterText: '',
           suffixText: '${provider.formItem.title.length}/$maxTitleCount',
@@ -174,7 +192,7 @@ class _TodoFormState extends State<TodoForm> {
                     ? Colors.grey
                     : Colors.black87,
           ),
-          prefixIcon: Icon(Icons.calendar_today, color: Colors.purple),
+          prefixIcon: Icon(Icons.calendar_month, color: Colors.purple),
           border: OutlineInputBorder(
             borderRadius: BorderRadius.circular(12),
             borderSide: BorderSide(color: Colors.grey.shade200),
@@ -239,7 +257,7 @@ class _TodoFormState extends State<TodoForm> {
                     ? Colors.grey
                     : Colors.black87,
           ),
-          prefixIcon: Icon(Icons.calendar_today, color: Colors.purple),
+          prefixIcon: Icon(Icons.calendar_month, color: Colors.purple),
           border: OutlineInputBorder(
             borderRadius: BorderRadius.circular(12),
             borderSide: BorderSide(color: Colors.grey.shade200),