Hide popup menu button in Notifications list

lib/ui/screens/notifications_screen.dart

@@ -8,12 +8,14 @@ import 'package:comunic/lists/users_list.dart';
 import 'package:comunic/models/notification.dart' as n;
 import 'package:comunic/ui/routes/main_route/main_route.dart';
 import 'package:comunic/ui/widgets/account_image_widget.dart';
+import 'package:comunic/ui/widgets/custom_list_tile.dart';
 import 'package:comunic/ui/widgets/safe_state.dart';
 import 'package:comunic/utils/date_utils.dart';
 import 'package:comunic/utils/intl_utils.dart';
 import 'package:comunic/utils/navigation_utils.dart';
 import 'package:comunic/utils/ui_utils.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/rendering.dart';
 
 /// Notifications screen
 ///
@@ -283,22 +285,29 @@ class _NotificationTile extends StatelessWidget {
     if (notification.onElemType == n.NotificationElementType.GROUP_MEMBERSHIP)
       message += groupsList[notification.onElemId].displayName;
 
-    return ListTile(
+    return CustomListTile(
       leading: AccountImageWidget(
         user: srcUser,
       ),
       onTap: () => _onTap(context),
       title: Text(message),
       subtitle: Text(diffTimeFromNowToStr(notification.timeCreate)),
-      trailing: PopupMenuButton<_PopupMenuActions>(
-        onSelected: _popupMenuAction,
-        itemBuilder: (c) => [
+      onLongPressWithInfo: (size, offset) {
+        final position = RelativeRect.fromLTRB(
+          offset.dx - size.width,
+          offset.dy,
+          offset.dx,
+          offset.dy + size.height,
+        ); //fromSize(Rect.fromPoints(offset, Offset.zero), size);*/
+
+        print(position);
+        showMenu(context: context, position: position, items: [
           PopupMenuItem(
             child: Text(tr("Delete")),
             value: _PopupMenuActions.DELETE,
           ),
-        ],
-      ),
+        ]).then(_popupMenuAction);
+      },
     );
   }
 

lib/ui/widgets/custom_list_tile.dart

@@ -0,0 +1,70 @@
+import 'package:flutter/material.dart';
+
+/// My custom list tile to add extra features to the default
+/// implementation
+///
+/// @author Pierre HUBERT
+
+class CustomListTile extends StatelessWidget {
+  final Widget leading;
+  final Widget title;
+  final Widget subtitle;
+  final Widget trailing;
+  final bool isThreeLine;
+  final bool dense;
+  final EdgeInsetsGeometry contentPadding;
+  final bool enabled;
+  final GestureTapCallback onTap;
+  final GestureLongPressCallback onLongPress;
+  final bool selected;
+
+  /// Custom onLongPress function
+  final Function(Size, Offset) onLongPressWithInfo;
+
+  const CustomListTile({
+    Key key,
+    this.leading,
+    this.title,
+    this.subtitle,
+    this.trailing,
+    this.isThreeLine = false,
+    this.dense,
+    this.contentPadding,
+    this.enabled = true,
+    this.onTap,
+    this.onLongPress,
+    this.selected = false,
+    this.onLongPressWithInfo,
+  })  : assert(isThreeLine != null),
+        assert(enabled != null),
+        assert(selected != null),
+        assert(!isThreeLine || subtitle != null),
+        super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return ListTile(
+      leading: leading,
+      title: title,
+      subtitle: subtitle,
+      trailing: trailing,
+      isThreeLine: isThreeLine,
+      dense: dense,
+      contentPadding: contentPadding,
+      enabled: enabled,
+      onTap: onTap,
+      onLongPress: () => _longPress(context),
+      selected: selected,
+    );
+  }
+
+  void _longPress(BuildContext context) {
+    RenderBox renderBox = context.findRenderObject();
+    final size = renderBox.size;
+    final offset = renderBox.localToGlobal(Offset(size.width, size.height));
+
+    if (onLongPress != null) onLongPress();
+
+    if (onLongPressWithInfo != null) onLongPressWithInfo(size, offset);
+  }
+}