feat: 新增修改資料密碼顯示按鈕

lib/PersonalInfo.dart

@@ -14,13 +14,11 @@ class PersonalInfo extends StatefulWidget {
 }
 
 class _PersonalInfoState extends State<PersonalInfo> {
-  String _name = '',
-      _phone = '',
-      _gender = '',
-      _address = '',
-      _email = '',
-      _password = '';
+  String _name = '', _phone = '', _gender = '', _address = '', _email = '', _password = '';
+
   bool _isEditing = false; //是否為編輯狀態
+  bool _passwordNotVisible = true;
+
   final TextEditingController _nameController = TextEditingController();
   final TextEditingController _phoneController = TextEditingController();
   final TextEditingController _genderController = TextEditingController();
@@ -158,8 +156,6 @@ class _PersonalInfoState extends State<PersonalInfo> {
         ));
   }
 
-  //頁面
-
   //頁面
   @override
   Widget build(BuildContext context) {
@@ -257,6 +253,20 @@ class _PersonalInfoState extends State<PersonalInfo> {
                   subtitle: _isEditing
                       ? TextField(
                           controller: _passwordController,
+                          obscureText: _passwordNotVisible,
+                          decoration: InputDecoration(
+                              suffixIcon: IconButton(
+                            icon: Icon(_passwordNotVisible
+                                ? Icons.visibility
+                                : Icons.visibility_off),
+                            onPressed: () {
+                              setState(
+                                () {
+                                  _passwordNotVisible = !_passwordNotVisible;
+                                },
+                              );
+                            },
+                          )),
                           onChanged: (value) {
                             setState(() {
                               _password = value;