fix: refresh scaffold, dash graphql syntax error

lib/screens/notifications.dart

@@ -8,7 +8,7 @@ import '../widgets/link.dart';
 import '../utils/utils.dart';
 
 String getRepoKey(NotificationGroup group) {
-  return '_' + group.owner + '_' + group.name;
+  return ('_' + group.owner + '_' + group.name).replaceAll('-', '__');
 }
 
 String getItemKey(NotificationPayload item) {
@@ -98,7 +98,7 @@ class NotificationScreen extends StatefulWidget {
 
 class NotificationScreenState extends State<NotificationScreen> {
   int active = 0;
-  bool loading = false;
+  bool loading;
   Map<String, NotificationGroup> groupMap = {};
 
   @override

lib/screens/repo.dart

@@ -63,21 +63,35 @@ class RepoScreen extends StatefulWidget {
 class _RepoScreenState extends State<RepoScreen> {
   Map<String, dynamic> payload;
   String readme;
+  bool loading;
+
+  @override
+  void initState() {
+    super.initState();
+    _refresh();
+  }
+
+  Future<void> _refresh() async {
+    setState(() {
+      loading = true;
+    });
+    List items = await Future.wait([
+      queryRepo(widget.owner, widget.name),
+      fetchReadme(widget.owner, widget.name),
+    ]);
+    setState(() {
+      loading = false;
+      payload = items[0];
+      readme = items[1];
+    });
+  }
 
   @override
   Widget build(BuildContext context) {
     return RefreshScaffold(
+      loading: loading,
       title: Text(widget.owner + '/' + widget.name),
-      onRefresh: () async {
-        List items = await Future.wait([
-          queryRepo(widget.owner, widget.name),
-          fetchReadme(widget.owner, widget.name),
-        ]);
-        setState(() {
-          payload = items[0];
-          readme = items[1];
-        });
-      },
+      onRefresh: _refresh,
       bodyBuilder: () {
         return Column(
           children: <Widget>[

lib/screens/user.dart

@@ -75,7 +75,14 @@ class UserScreen extends StatefulWidget {
 }
 
 class _UserScreenState extends State<UserScreen> {
-  Map<String, dynamic> payload;
+  bool loading;
+  Map<String, dynamic> payload = {};
+
+  @override
+  void initState() {
+    super.initState();
+    _refresh();
+  }
 
   Widget _buildRepos() {
     String title;
@@ -95,16 +102,25 @@ class _UserScreenState extends State<UserScreen> {
     );
   }
 
+  Future<void> _refresh() async {
+    setState(() {
+      loading = true;
+    });
+    var _payload = await queryUser(widget.login);
+    if (mounted) {
+      setState(() {
+        loading = false;
+        payload = _payload;
+      });
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     return RefreshScaffold(
-      onRefresh: () async {
-        var _payload = await queryUser(widget.login);
-        setState(() {
-          payload = _payload;
-        });
-      },
+      onRefresh: _refresh,
       title: Text(widget.login),
+      loading: loading,
       bodyBuilder: () {
         return Column(
           children: <Widget>[