126 lines
2.9 KiB
Dart
126 lines
2.9 KiB
Dart
import 'package:flutter/material.dart';
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import '../../basic/Channels.dart';
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import '../../basic/Common.dart';
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import '../../basic/Method.dart';
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import 'ContentLoading.dart';
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class DownloadComicsScreen extends StatefulWidget {
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final List<String> comicIds;
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const DownloadComicsScreen(this.comicIds, {Key? key}) : super(key: key);
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@override
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State<StatefulWidget> createState() => _DownloadComicsScreenState();
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}
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class _DownloadComicsScreenState extends State<DownloadComicsScreen> {
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bool exporting = false;
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bool exported = false;
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bool exportFail = false;
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dynamic e;
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String exportMessage = "正在创建下载任务";
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@override
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void initState() {
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registerEvent(_onMessageChange, "EXPORT");
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super.initState();
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}
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@override
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void dispose() {
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unregisterEvent(_onMessageChange);
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super.dispose();
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}
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void _onMessageChange(event) {
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setState(() {
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exportMessage = event;
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});
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}
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@override
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Widget build(BuildContext context) {
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return WillPopScope(
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child: Scaffold(
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appBar: AppBar(
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title: const Text("批量下载"),
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),
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body: _body(),
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),
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onWillPop: () async {
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if (exporting) {
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defaultToast(context, "创建下载任务中, 请稍后");
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return false;
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}
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return true;
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},
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);
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}
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Widget _body() {
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if (exporting) {
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return ContentLoading(label: exportMessage);
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}
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if (exportFail) {
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return Center(child: Text("失败\n$e"));
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}
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if (exported) {
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return const Center(child: Text("成功"));
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}
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return ListView(
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children: [
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Container(height: 20),
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Container(height: 20),
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_buildButtonInner("您即将下载${widget.comicIds.length}部漫画, 如果漫画已经存在, 则补充新增加的章节"),
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Container(height: 20),
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Container(height: 20),
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MaterialButton(
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onPressed: _create,
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child: _buildButtonInner("确认"),
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),
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Container(height: 20),
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Container(height: 20),
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Container(height: 20),
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],
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);
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}
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_create() async {
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var name = "";
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try {
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setState(() {
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exporting = true;
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});
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await method.downloadAll(
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widget.comicIds,
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);
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exported = true;
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} catch (err) {
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e = err;
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exportFail = true;
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} finally {
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setState(() {
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exporting = false;
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});
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}
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}
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Widget _buildButtonInner(String text) {
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return LayoutBuilder(
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builder: (BuildContext context, BoxConstraints constraints) {
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return Container(
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width: constraints.maxWidth,
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padding: const EdgeInsets.all(15),
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color: (Theme.of(context).textTheme.bodyText1?.color ?? Colors.black)
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.withOpacity(.05),
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child: Text(
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text,
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textAlign: TextAlign.center,
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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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