Show friends list as a dialog

lib/ui/routes/main_route/main_route.dart

@@ -115,8 +115,11 @@ abstract class MainController extends State<MainRoute> {
       id: groupID));
 
   /// Display the list of friends of current user
-  void openFriendsList() => pushPage(
-      PageInfo(type: PageType.FRIENDS_LIST_PAGE, child: FriendsListScreen()));
+  void openFriendsList() => pushPage(PageInfo(
+        type: PageType.FRIENDS_LIST_PAGE,
+        child: FriendsListScreen(),
+        canShowAsDialog: true,
+      ));
 
   /// Open search page
   void openSearchPage() => pushPage(PageInfo(child: SearchScreen()));
@@ -127,7 +130,10 @@ abstract class MainController extends State<MainRoute> {
   /// Display the list of friends of a user
   void openUserFriendsList(int id) {
     if (id != userID())
-      pushPage(PageInfo(child: OtherUserFriendsListScreen(userID: id)));
+      pushPage(PageInfo(
+        child: OtherUserFriendsListScreen(userID: id),
+        canShowAsDialog: true,
+      ));
     else
       openFriendsList();
   }

lib/ui/screens/friends_list_screen.dart

@@ -43,7 +43,6 @@ class _FriendsListScreenState extends SafeState<FriendsListScreen> {
     error = _friendsList == null ? _ErrorsLevel.MAJOR : _ErrorsLevel.MINOR;
   }
 
-
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
@@ -69,7 +68,7 @@ class _FriendsListScreenState extends SafeState<FriendsListScreen> {
     final list = await _friendsHelper.getList(online: online);
 
     // Check if there is no cache yet
-    if(!online && list.isEmpty) return;
+    if (!online && list.isEmpty) return;
 
     // Check for errors
     if (list == null) return _gotError();
@@ -103,7 +102,14 @@ class _FriendsListScreenState extends SafeState<FriendsListScreen> {
       );
 
   @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context) => Scaffold(
+        appBar: AppBar(
+          title: Text(tr("Your friends list")),
+        ),
+        body: _buildBody(),
+      );
+
+  Widget _buildBody() {
     if (_error == _ErrorsLevel.MAJOR) return _buildError();
     if (_friendsList == null) return buildCenteredProgressBar();