Can respond to friendship requests

lib/helpers/friends_helper.dart

@@ -24,15 +24,31 @@ class FriendsHelper {
 
     // Parse and return the list of friends
     FriendsList list = FriendsList();
-    response.getArray().forEach((f) =>
+    response.getArray().forEach(
-        list.add(Friend(
+          (f) => list.add(
+                Friend(
                   id: f["ID_friend"],
                   accepted: f["accepted"] == 1,
                   lastActive: f["time_last_activity"],
                   following: f["following"] == 1,
-          canPostTexts: f["canPostTexts"],),),
+                  canPostTexts: f["canPostTexts"],
+                ),
+              ),
         );
 
     return list;
   }
+
+  /// Respond to friendship request
+  Future<bool> respondRequest(int friendID, bool accept) async {
+    final response = await APIRequest(
+        uri: "friends/respondRequest",
+        needLogin: true,
+        args: {
+          "friendID": friendID.toString(),
+          "accept": accept.toString()
+        }).exec();
+
+    return response.code == 200;
+  }
 }

lib/ui/screens/friends_list_screen.dart

@@ -2,6 +2,7 @@ import 'package:comunic/helpers/friends_helper.dart';
 import 'package:comunic/helpers/users_helper.dart';
 import 'package:comunic/lists/friends_list.dart';
 import 'package:comunic/lists/users_list.dart';
+import 'package:comunic/models/friend.dart';
 import 'package:comunic/ui/tiles/accepted_friend_tile.dart';
 import 'package:comunic/ui/tiles/pending_friend_tile.dart';
 import 'package:comunic/ui/widgets/safe_state.dart';
@@ -41,7 +42,6 @@ class _FriendsListScreenState extends SafeState<FriendsListScreen> {
   void _gotError() =>
       error = _friendsList == null ? _ErrorsLevel.MAJOR : _ErrorsLevel.MINOR;
 
-
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
@@ -75,8 +75,7 @@ class _FriendsListScreenState extends SafeState<FriendsListScreen> {
   }
 
   /// Build and return loading error
-  Widget _buildError() =>
+  Widget _buildError() => buildErrorCard(
-      buildErrorCard(
         tr("Could not load your list of friends!"),
         actions: [
           FlatButton(
@@ -96,7 +95,6 @@ class _FriendsListScreenState extends SafeState<FriendsListScreen> {
 
     return Column(
       children: <Widget>[
-
         // Check for errors
         Container(child: _error != _ErrorsLevel.NONE ? _buildError() : null),
 
@@ -105,18 +103,32 @@ class _FriendsListScreenState extends SafeState<FriendsListScreen> {
 
         // List of friends
         Expanded(
-          child: ListView.builder(itemCount: _friendsList.length, itemBuilder: (c, i) =>
+          child: ListView.builder(
-          _friendsList[i].accepted ? AcceptedFriendTile(
+              itemCount: _friendsList.length,
+              itemBuilder: (c, i) => _friendsList[i].accepted
+                  ? AcceptedFriendTile(
                       friend: _friendsList[i],
                       user: _usersInfo.getUser(_friendsList[i].id),
-          ) : PendingFriendTile(
+                    )
+                  : PendingFriendTile(
                       friend: _friendsList[i],
                       user: _usersInfo.getUser(_friendsList[i].id),
-            onRespond: (friend, accept){},
+                      onRespond: _respondRequest,
                     )),
         ),
-
       ],
     );
   }
+
+  /// Respond to friendship request
+  Future<void> _respondRequest(Friend f, bool accept) async {
+    loading = true;
+
+    if (!await _friendsHelper.respondRequest(f.id, accept))
+      Scaffold.of(context).showSnackBar(SnackBar(
+          content: Text(tr("Could not respond to friendship request!"))));
+
+    // Load the list of friends again
+    _loadList();
+  }
 }