fix create group chat UI

lib/apps/group_chat/add.dart

@@ -51,8 +51,6 @@ class _GroupAddPageState extends State<GroupAddPage> {
   int _groupAddr = 0;
   int _groupType = 1;
   bool _groupNeedAgree = false;
-  bool _groupHasKey = true;
-  bool _groupHasNeedAgree = true;
   bool _addrOnline = false;
   bool _addrChecked = false;
   String _myName = '';
@@ -87,17 +85,6 @@ class _GroupAddPageState extends State<GroupAddPage> {
           groupValue: _groupType,
           onChanged: disabled ? null : (n) => setState(() {
               _groupType = n;
-              if (n == 0) {
-                _groupHasKey = true;
-              } else {
-                _groupHasKey = false;
-              }
-
-              if (n == 2) {
-                _groupHasNeedAgree = false;
-              } else {
-                _groupHasNeedAgree = true;
-              }
           }),
         ),
         _groupType == value
@@ -117,7 +104,7 @@ class _GroupAddPageState extends State<GroupAddPage> {
     if (addr.substring(0, 2) == '0x') {
       addr = addr.substring(2);
     }
-    rpc.send('group-chat-check', [addr]);
+    context.read<GroupChatProvider>().check(addr);
   }
 
   _scanCallback(bool isOk, String app, List params) {
@@ -203,6 +190,8 @@ class _GroupAddPageState extends State<GroupAddPage> {
     rpc.send('group-chat-request-list', [false]);
     new Future.delayed(Duration.zero, () {
         _myName = context.read<AccountProvider>().activedAccount.name;
+        context.read<GroupChatProvider>().clearCheck();
+        setState(() {});
     });
   }
 
@@ -488,7 +477,7 @@ class _GroupAddPageState extends State<GroupAddPage> {
                           controller: _createBioController,
                           focus: _createBioFocus),
                       ),
-                      if (_groupHasKey)
+                      if (_groupType == 0)
                       Container(
                         padding: EdgeInsets.symmetric(vertical: 10.0),
                         child: InputText(
@@ -497,7 +486,7 @@ class _GroupAddPageState extends State<GroupAddPage> {
                           controller: _createKeyController,
                           focus: _createKeyFocus),
                       ),
-                      if (_groupHasNeedAgree)
+                      if (_groupType != 2)
                       Container(
                         height: 50.0,
                         width: 600.0,

lib/apps/group_chat/models.dart

@@ -19,6 +19,7 @@ enum CheckType {
   Suspend,
   Deny,
   Wait,
+  Nothing,
 }
 
 extension GroupTypeExtension on GroupType {
@@ -87,7 +88,7 @@ extension CheckTypeExtension on CheckType {
       case 3:
         return CheckType.Deny;
       default:
-        return CheckType.Deny;
+        return CheckType.Nothing;
     }
   }
 }

lib/apps/group_chat/provider.dart

@@ -10,7 +10,7 @@ import 'package:esse/apps/group_chat/models.dart';
 
 class GroupChatProvider extends ChangeNotifier {
   List<GroupType> createSupported = [GroupType.Encrypted, GroupType.Private, GroupType.Open];
-  CheckType createCheckType = CheckType.Wait;
+  CheckType createCheckType = CheckType.Nothing;
 
   Map<int, GroupChat> groups = {};
   List<int> createKeys = [];
@@ -122,6 +122,15 @@ class GroupChatProvider extends ChangeNotifier {
     this.requests.clear();
   }
 
+  check(String addr) {
+    this.createCheckType = CheckType.Wait;
+    rpc.send('group-chat-check', [addr]);
+  }
+
+  clearCheck() {
+    this.createCheckType = CheckType.Nothing;
+  }
+
   join(GroupType gtype, String gid, String gaddr, String name, String remark, [String proof = '', String key = '']) {
     rpc.send('group-chat-join', [gtype.toInt(), gid, gaddr, name, remark, proof, key]);
   }
@@ -185,11 +194,13 @@ class GroupChatProvider extends ChangeNotifier {
 
   _check(List params) {
     this.createSupported.clear();
-    this.createCheckType = CheckTypeExtension.fromInt(params[0]);
-    params[1].forEach((param) {
-        this.createSupported.add(GroupTypeExtension.fromInt(param));
-    });
-    notifyListeners();
+    if (this.createCheckType == CheckType.Wait) {
+      this.createCheckType = CheckTypeExtension.fromInt(params[0]);
+      params[1].forEach((param) {
+          this.createSupported.add(GroupTypeExtension.fromInt(param));
+      });
+      notifyListeners();
+    }
   }
 
   _create(List params) {

src/storage.rs

@@ -2,7 +2,6 @@ use async_fs as fs;
 use image::{load_from_memory, DynamicImage, GenericImageView};
 use rand::{distributions::Alphanumeric, thread_rng, Rng};
 use std::path::PathBuf;
-use std::sync::Arc;
 use std::time::{SystemTime, UNIX_EPOCH};
 
 use tdn::types::{