历史登录账号弹窗增加关闭按钮

lib/ui/login/login_page.dart

@@ -251,8 +251,27 @@ class EditTextState extends State<EditTextWidget>
                                     builder: (BuildContext context) {
                                       return AlertDialog(
                                         titlePadding: const EdgeInsets.only(
-                                            left: 20, right: 20, top: 10),
-                                        title: const Text('历史登录账号、密码'),
+                                            left: 20,
+                                            right: 20,
+                                            top: 10,
+                                            bottom: 10),
+                                        title: Row(
+                                          mainAxisAlignment:
+                                              MainAxisAlignment.spaceBetween,
+                                          children: [
+                                            const Text('历史登录账号、密码'),
+                                            InkWell(
+                                              onTap: () {
+                                                Get.back();
+                                              },
+                                              child: const Icon(
+                                                Icons.clear,
+                                                size: 30,
+                                                color: Colors.grey,
+                                              ),
+                                            )
+                                          ],
+                                        ),
                                         actions: <Widget>[
                                           ListView.separated(
                                             scrollDirection: Axis.vertical,