backup. before shop update
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314
lib/widgets/desktop/desktop_blog.dart
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314
lib/widgets/desktop/desktop_blog.dart
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import 'package:flutter/material.dart';
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import 'package:flutter_spinkit/flutter_spinkit.dart';
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import 'package:pull_to_refresh/pull_to_refresh.dart';
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import '../../constants.dart';
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import '../../events/eventbus.dart';
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import '../../events/events.dart';
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import '../../generated/l10n.dart';
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import '../../models/address.dart';
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import '../../models/blog.dart';
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import '../../models/ticket.dart';
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import '../../pages/edit_address.dart';
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import '../../routes.dart';
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import '../../store/actions.dart';
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import '../../store/store.dart';
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import '../../utils/http_util.dart';
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import '../../utils/utils.dart';
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import '../../widgets/general/bottom_nav.dart';
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import '../../widgets/general/breadcrumbs.dart';
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import '../../widgets/general/navigationbar.dart';
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import '../../utils/util_web.dart' if (dart.library.io) '../../utils/util_io.dart';
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class DesktopBlog extends StatefulWidget {
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final int businessId;
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const DesktopBlog({Key key, this.businessId}) : super(key: key);
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@override
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State<StatefulWidget> createState() {
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return DesktopBlogState();
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}
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}
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class DesktopBlogState extends State<DesktopBlog> {
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List<Blog> blogs;
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double division = 2;
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int _page = 1;
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int _pageCount = 1;
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bool _isLoading = false;
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bool _loadingFinish = false;
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RefreshController _refreshController = RefreshController(initialRefresh: true);
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void _onRefresh() {
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_page = 1;
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if (blogs != null) {
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blogs.clear();
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} else {
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blogs = [];
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}
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_refreshController.resetNoData();
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loadBlogs(true);
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}
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void _onLoadMore() {
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// if failed,use loadFailed(),if no data return,use LoadNodata()
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if (_pageCount > _page) {
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_page += 1;
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loadBlogs(false);
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} else {
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_refreshController.loadNoData();
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}
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}
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double sideSpace = 0;
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double mainSpace = 1200;
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@override
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Widget build(BuildContext context) {
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store.dispatch(UpdateContext(context));
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if (MediaQuery.of(context).size.width <= 1200) {
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mainSpace = MediaQuery.of(context).size.width;
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sideSpace = 0;
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} else {
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mainSpace = 1200;
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sideSpace = (MediaQuery.of(context).size.width - 1200) / 2;
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}
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BuildContext mainContext = context;
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return Scaffold(
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appBar: NavigationBar(
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title: S.of(context).blog,
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back: true,
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breadCrumbs: [
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BreadCrumb(S.of(context).blog, null),
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],
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breadCrumbHeight: Constants.BREADCRUMB_HEIGHT,
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),
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body: SmartRefresher(
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enablePullDown: true,
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enablePullUp: true,
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header: WaterDropHeader(),
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footer: CustomFooter(
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builder: (BuildContext context, LoadStatus mode){
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Widget footer;
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if(mode == LoadStatus.idle) {
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footer = Text(S.of(context).pull_up_to_load_more);
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} else if (mode == LoadStatus.loading) {
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footer = CircularProgressIndicator();
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} else if (mode == LoadStatus.failed) {
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footer = Text(S.of(context).load_failed_retry);
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} else if (mode == LoadStatus.canLoading) {
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footer = Text(S.of(context).release_to_load_more);
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} else if (mode == LoadStatus.noMore) {
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footer = Text(S.of(context).no_more_record);
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} else {
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footer = Text('...');
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}
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return Container(
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height: 55.0,
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child: Center(child: footer,),
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);
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},
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),
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controller: _refreshController,
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onRefresh: _onRefresh,
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onLoading: _onLoadMore,
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child: _buildBody(),
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),
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bottomNavigationBar: BottomNav(),
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);
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}
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Widget _buildBody() {
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if (blogs == null) {
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return SizedBox.shrink();
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}
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Row row = Row(
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mainAxisAlignment: MainAxisAlignment.start,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Container(
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width: sideSpace,
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),
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Container(
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width: mainSpace,
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padding: EdgeInsets.only(
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top: 12.0,
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bottom: 16.0,
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left: 8.0,
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right: 8.0,
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),
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child: blogs == null ? Text('') :
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(blogs.length > 0 ?
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Wrap(
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children: blogs.map((a) => GestureDetector(
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child: _getBlog(a),
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onTap: () {
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Routes.router.navigateTo(context, '/view-blog/${a.id}');
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},
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)).toList(),
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) :
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Center(
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child: Text(S.of(context).no_blog_yet),
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)),
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),
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Container(
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width: sideSpace,
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),
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],
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);
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return SingleChildScrollView(
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child: row,
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);
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}
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Widget _getBlog(Blog blog) {
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return Container(
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width: (mainSpace - 16.0) / division,
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padding: EdgeInsets.symmetric(vertical: 8.0, horizontal: 8.0),
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child: Container(
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padding: EdgeInsets.only(top: 20.0, bottom: 20.0, left: 16.0, right: 16.0,),
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decoration: BoxDecoration(
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border: Border(
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bottom: BorderSide(
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color: Colors.black12,
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width: 0.6,
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),
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top: BorderSide(
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color: Colors.black12,
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width: 0.6,
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),
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left: BorderSide(
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color: Colors.black12,
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width: 0.6,
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),
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right: BorderSide(
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color: Colors.black12,
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width: 0.6,
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),
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),
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borderRadius: BorderRadius.all(Radius.circular(10.0)),
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),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.start,
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children: <Widget>[
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(blog.thumbUrl != null) ?
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Container(
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padding: EdgeInsets.only(right: 10.0),
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child: Util.showImage(
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'https:${blog.thumbUrl}',
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width: 80,
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height: 80,
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),
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) : SizedBox.shrink(),
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Expanded(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.start,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: <Widget>[
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Container(
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child: Text(
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blog.title,
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style: TextStyle(
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fontSize: 19.0,
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),
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overflow: TextOverflow.ellipsis,
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),
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),
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Container(
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child: Text(
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Utils.utcDatetimeStringToLocalDatetimeString(context, blog.createdAt,),
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style: TextStyle(
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fontSize: 13.0,
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color: Colors.grey,
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),
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),
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),
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],
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),
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),
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],
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),
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),
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);
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}
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@override
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void dispose() {
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_refreshController?.dispose();
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super.dispose();
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}
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@override
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void initState() {
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super.initState();
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eventBus.on<OnTicketsUpdated>().listen((event) {
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if (mounted) {
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setState(() {
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blogs = null;
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});
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}
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_refreshController.requestRefresh();
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});
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}
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void loadBlogs(bool isRefresh) {
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_loadingFinish = false;
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HttpUtil.httpGet(
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'v1/blogs',
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businessId: widget.businessId,
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queryParameters: {
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'page': _page.toString(),
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'size': Constants.BLOG_PER_PAGE_DESKTOP.toString()
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}
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).then((value) {
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if (mounted) {
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if (isRefresh) {
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_refreshController.refreshCompleted();
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} else {
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_refreshController.loadComplete();
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}
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if (int.parse(value['currentPage'].toString()) >= int.parse(value['pageCount'].toString())) {
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_loadingFinish = true;
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}
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if (_loadingFinish) {
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_refreshController.loadNoData();
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}
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_page = int.parse(value['currentPage'].toString());
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_pageCount = int.parse(value['pageCount'].toString());
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setState(() {
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if (blogs == null) {
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blogs = [];
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}
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blogs.addAll((value['blogs'] as List).map((e) => Blog.fromJson(e)).toList());
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});
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}
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}).catchError((error) {
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if (mounted) {
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if (isRefresh) {
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_refreshController.refreshFailed();
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} else {
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_refreshController.loadFailed();
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}
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_isLoading = false;
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Utils.showMessageDialog(context, error, onOk: () {
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Navigator.of(context).pop();
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Navigator.of(context).pop();
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});
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}
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});
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}
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}
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