pikapika/lib/screens/DownloadExportToFileScreen....

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Dart
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import 'dart:async';
import 'dart:io';
import 'package:flutter/material.dart';
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import 'package:permission_handler/permission_handler.dart';
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import 'package:pikapika/basic/Channels.dart';
import 'package:pikapika/basic/Common.dart';
import 'package:pikapika/basic/Cross.dart';
import 'package:pikapika/basic/Entities.dart';
import 'package:pikapika/basic/Method.dart';
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import 'package:pikapika/basic/config/ExportRename.dart';
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import 'package:pikapika/screens/DownloadExportToSocketScreen.dart';
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import 'components/ContentError.dart';
import 'components/ContentLoading.dart';
import 'components/DownloadInfoCard.dart';
// 导出
class DownloadExportToFileScreen extends StatefulWidget {
final String comicId;
final String comicTitle;
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const DownloadExportToFileScreen({
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required this.comicId,
required this.comicTitle,
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Key? key,
}) : super(key: key);
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@override
State<StatefulWidget> createState() => _DownloadExportToFileScreenState();
}
class _DownloadExportToFileScreenState
extends State<DownloadExportToFileScreen> {
late DownloadComic _task;
late Future _future = _load();
late bool exporting = false;
late String exportMessage = "导出中";
late String exportResult = "";
Future _load() async {
_task = (await method.loadDownloadComic(widget.comicId))!;
}
@override
void initState() {
registerEvent(_onMessageChange, "EXPORT");
super.initState();
}
@override
void dispose() {
unregisterEvent(_onMessageChange);
super.dispose();
}
void _onMessageChange(event) {
setState(() {
exportMessage = event;
});
}
@override
Widget build(BuildContext context) {
if (exporting) {
return Scaffold(
body: ContentLoading(label: exportMessage),
);
}
return Scaffold(
appBar: AppBar(
title: Text("导出 - " + widget.comicTitle),
),
body: FutureBuilder(
future: _future,
builder: (BuildContext context, AsyncSnapshot<dynamic> snapshot) {
if (snapshot.hasError) {
return ContentError(
error: snapshot.error,
stackTrace: snapshot.stackTrace,
onRefresh: () async {
setState(() {
_future = _load();
});
});
}
if (snapshot.connectionState != ConnectionState.done) {
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return const ContentLoading(label: '加载中');
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}
return ListView(
children: [
DownloadInfoCard(task: _task),
Container(
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padding: const EdgeInsets.all(8),
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child: exportResult != "" ? Text(exportResult) : Container(),
),
Container(
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padding: const EdgeInsets.all(8),
child: const Text('TIPS : 选择一个目录'),
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),
..._buildExportToFileButtons(),
MaterialButton(
onPressed: () async {
Navigator.of(context).push(
MaterialPageRoute(
builder: (context) => DownloadExportToSocketScreen(
task: _task,
comicId: widget.comicId,
comicTitle: widget.comicTitle,
),
),
);
},
child: _buildButtonInner('传输到其他设备'),
),
],
);
},
),
);
}
List<Widget> _buildExportToFileButtons() {
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List<Widget> widgets = [];
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if (Platform.isWindows ||
Platform.isMacOS ||
Platform.isLinux ||
Platform.isAndroid) {
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widgets.add(MaterialButton(
onPressed: () async {
late String? path;
try {
path = await chooseFolder(context);
} catch (e) {
defaultToast(context, "$e");
return;
}
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var name = "";
if (currentExportRename()) {
var rename = await inputString(
context,
"请输入保存后的名称",
defaultValue: _task.title,
);
if (rename != null && rename.isNotEmpty) {
name = rename;
} else {
return;
}
}
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print("path $path");
if (path != null) {
try {
setState(() {
exporting = true;
});
await method.exportComicDownloadToJPG(
widget.comicId,
path,
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name,
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);
setState(() {
exportResult = "导出成功";
});
} catch (e) {
setState(() {
exportResult = "导出失败 $e";
});
} finally {
setState(() {
exporting = false;
});
}
}
},
child: _buildButtonInner('导出到HTML+JPG\n(可直接在相册中打开观看)'),
));
widgets.add(Container(height: 10));
widgets.add(MaterialButton(
onPressed: () async {
late String? path;
try {
path = await chooseFolder(context);
} catch (e) {
defaultToast(context, "$e");
return;
}
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var name = "";
if (currentExportRename()) {
var rename = await inputString(
context,
"请输入保存后的名称",
defaultValue: _task.title,
);
if (rename != null && rename.isNotEmpty) {
name = rename;
} else {
return;
}
}
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print("path $path");
if (path != null) {
try {
setState(() {
exporting = true;
});
await method.exportComicDownload(
widget.comicId,
path,
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name,
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);
setState(() {
exportResult = "导出成功";
});
} catch (e) {
setState(() {
exportResult = "导出失败 $e";
});
} finally {
setState(() {
exporting = false;
});
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}
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}
},
child: _buildButtonInner('导出到HTML.zip\n(可从其他设备导入 / 解压后可阅读)'),
));
widgets.add(Container(height: 10));
}
if (Platform.isIOS || Platform.isAndroid) {
widgets.add(MaterialButton(
onPressed: () async {
if (!(await confirmDialog(context, "导出确认", "将本漫画所有图片到相册?"))) {
return;
}
if (!(await Permission.storage.request()).isGranted) {
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return;
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}
try {
setState(() {
exporting = true;
});
// 导出所有图片数据
var count = 0;
List<DownloadEp> eps = await method.downloadEpList(widget.comicId);
for (var i = 0; i < eps.length; i++) {
var pics = await method.downloadPicturesByEpId(eps[i].id);
for (var j = 0; j < pics.length; j++) {
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setState(() {
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exportMessage = "导出图片 ${count++}";
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});
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await saveImageQuiet(
await method.downloadImagePath(pics[j].localPath),
context,
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);
}
}
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setState(() {
exportResult = "导出成功";
});
} catch (e) {
setState(() {
exportResult = "导出失败 $e";
});
} finally {
setState(() {
exporting = false;
});
}
},
child: _buildButtonInner('将所有图片到处到手机相机'),
));
widgets.add(Container(height: 10));
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}
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return widgets;
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}
Widget _buildButtonInner(String text) {
return LayoutBuilder(
builder: (BuildContext context, BoxConstraints constraints) {
return Container(
width: constraints.maxWidth,
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padding: const EdgeInsets.only(top: 15, bottom: 15),
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color: (Theme.of(context).textTheme.bodyText1?.color ?? Colors.black)
.withOpacity(.05),
child: Text(
text,
textAlign: TextAlign.center,
),
);
},
);
}
}