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Code Issues Projects Releases Wiki Activity

Can get older posts on latest posts page

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This commit is contained in:
Pierre HUBERT
2019-06-15 16:25:06 +02:00
parent f1b92c8dcd
commit 5c37aae000
4 changed files with 41 additions and 8 deletions
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1
lib/ui/screens/newest_posts.dart
View File

@ -20,6 +20,7 @@ class _NewestPostsScreenState extends State<NewestPostsScreen> {
Widget build(BuildContext context) {
return PostsListWidget(
getPostsList: _postsHelper.getLatest,
getOlder: (f) => _postsHelper.getLatest(from: f - 1),
showPostsTarget: true,
);
}

35
lib/ui/widgets/posts_list_widget.dart
View File

@ -6,6 +6,7 @@ import 'package:comunic/lists/users_list.dart';
import 'package:comunic/models/post.dart';
import 'package:comunic/ui/screens/conversation_screen.dart';
import 'package:comunic/ui/tiles/post_tile.dart';
import 'package:comunic/ui/widgets/scroll_watcher.dart';
import 'package:comunic/utils/intl_utils.dart';
import 'package:comunic/utils/ui_utils.dart';
import 'package:flutter/material.dart';
@ -18,6 +19,7 @@ import 'package:flutter/material.dart';
class PostsListWidget extends StatefulWidget {
final Future<PostsList> Function() getPostsList;
final Future<PostsList> Function(int from) getOlder;
final bool showPostsTarget;
final bool buildListView;
final bool userNamesClickable;
@ -28,6 +30,7 @@ class PostsListWidget extends StatefulWidget {
@required this.showPostsTarget,
this.userNamesClickable = true,
this.buildListView = true,
this.getOlder,
}) : assert(getPostsList != null),
assert(showPostsTarget != null),
assert(buildListView != null),
@ -47,10 +50,17 @@ class _PostsListWidgetState extends State<PostsListWidget> {
PostsList _list;
UsersList _users;
GroupsList _groups;
ScrollWatcher _scrollController;
ErrorLevel _error = ErrorLevel.NONE;
set error(ErrorLevel err) => setState(() => _error = err);
ErrorLevel _error = ErrorLevel.NONE;
@override
void initState() {
super.initState();
_scrollController = ScrollWatcher(onReachBottom: _reachedPostsBottom);
}
@override
void didChangeDependencies() {
@ -62,8 +72,10 @@ class _PostsListWidgetState extends State<PostsListWidget> {
error = _list == null ? ErrorLevel.MAJOR : ErrorLevel.MINOR;
/// Load the list of posts
Future<void> _loadPostsList() async {
final list = await widget.getPostsList();
Future<void> _loadPostsList({bool getOlder = false}) async {
final list = !getOlder
? await widget.getPostsList()
: await widget.getOlder(_list.oldestID);
if (list == null) return _loadError();
@ -76,9 +88,15 @@ class _PostsListWidgetState extends State<PostsListWidget> {
if (groups == null) return _loadError();
setState(() {
_list = list;
_users = users;
_groups = groups;
if (!getOlder) {
_list = list;
_users = users;
_groups = groups;
} else {
_list.addAll(list);
_users.addAll(users);
_groups.addAll(groups);
}
});
}
@ -99,6 +117,7 @@ class _PostsListWidgetState extends State<PostsListWidget> {
return ListView.builder(
itemCount: _list.length,
itemBuilder: _buildItem,
controller: _scrollController,
);
}
@ -131,4 +150,8 @@ class _PostsListWidgetState extends State<PostsListWidget> {
}
void _removePost(Post post) => setState(() => _list.remove(post));
void _reachedPostsBottom() {
if (widget.getOlder != null) _loadPostsList(getOlder: true);
}
}