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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,187 @@ | ||
| import 'dart:io'; | ||
|
|
||
| import 'package:file_picker/file_picker.dart'; | ||
| import 'package:fixnum/src/int64.dart'; | ||
| import 'package:flutter/cupertino.dart'; | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:permission_handler/permission_handler.dart'; | ||
| import 'package:wax/basic/methods.dart'; | ||
|
|
||
| import '../basic/commons.dart'; | ||
| import '../configs/android_version.dart'; | ||
|
|
||
| class ExportingScreen extends StatefulWidget { | ||
| final List<Int64> selected; | ||
|
|
||
| const ExportingScreen(this.selected, {Key? key}) : super(key: key); | ||
|
|
||
| @override | ||
| State<StatefulWidget> createState() => _ExportingScreenState(); | ||
| } | ||
|
|
||
| class _ExportingScreenState extends State<ExportingScreen> { | ||
| int _exportStatus = 0; // 0: 未开始, 1: 正在导出, 2: 导出完成, 3: 导出失败 | ||
| String _exportMessage = ""; | ||
|
|
||
| @override | ||
| Widget build(BuildContext context) { | ||
| return WillPopScope( | ||
| onWillPop: () async { | ||
| if (_exportStatus == 1) { | ||
| defaultToast(context, "正在导出, 请稍后"); | ||
| return false; | ||
| } | ||
| return true; | ||
| }, | ||
| child: Scaffold( | ||
| appBar: AppBar( | ||
| title: const Text("导出"), | ||
| ), | ||
| body: _buildBody(), | ||
| ), | ||
| ); | ||
| } | ||
|
|
||
| Widget _buildBody() { | ||
| switch (_exportStatus) { | ||
| case 0: | ||
| return _buildStart(); | ||
| case 1: | ||
| return _buildExporting(); | ||
| case 2: | ||
| return _buildFinish(); | ||
| case 3: | ||
| return _buildError(); | ||
| default: | ||
| return Container(); | ||
| } | ||
| } | ||
|
|
||
| Widget _buildStart() { | ||
| return Center( | ||
| child: Column( | ||
| mainAxisAlignment: MainAxisAlignment.center, | ||
| children: [ | ||
| Text("您一共选择了 ${widget.selected.length} 个漫画"), | ||
| const SizedBox(height: 20), | ||
| exportToZipButton(), | ||
| exportToCzbButton(), | ||
| ], | ||
| ), | ||
| ); | ||
| } | ||
|
|
||
| Widget _buildExporting() { | ||
| return Center( | ||
| child: Column( | ||
| mainAxisAlignment: MainAxisAlignment.center, | ||
| children: const [ | ||
| Text("导出中..."), | ||
| SizedBox(height: 20), | ||
| CupertinoActivityIndicator(), | ||
| ], | ||
| ), | ||
| ); | ||
| } | ||
|
|
||
| Widget _buildFinish() { | ||
| return Center( | ||
| child: Column( | ||
| mainAxisAlignment: MainAxisAlignment.center, | ||
| children: [ | ||
| const Text("导出完成"), | ||
| const SizedBox(height: 20), | ||
| ElevatedButton( | ||
| onPressed: () { | ||
| Navigator.pop(context); | ||
| }, | ||
| child: const Text("返回"), | ||
| ), | ||
| ], | ||
| ), | ||
| ); | ||
| } | ||
|
|
||
| Widget _buildError() { | ||
| return Center( | ||
| child: Column( | ||
| mainAxisAlignment: MainAxisAlignment.center, | ||
| children: [ | ||
| const Text("导出失败"), | ||
| Text(_exportMessage), | ||
| const SizedBox(height: 20), | ||
| ElevatedButton( | ||
| onPressed: () { | ||
| Navigator.pop(context); | ||
| }, | ||
| child: const Text("返回"), | ||
| ), | ||
| ], | ||
| ), | ||
| ); | ||
| } | ||
|
|
||
| Widget exportToZipButton() { | ||
| return ElevatedButton( | ||
| onPressed: () async { | ||
| _export(1); | ||
| }, | ||
| child: const Text("导出到zip"), | ||
| ); | ||
| } | ||
|
|
||
| Widget exportToCzbButton() { | ||
| return ElevatedButton( | ||
| onPressed: () async { | ||
| _export(2); | ||
| }, | ||
| child: const Text("导出到czb"), | ||
| ); | ||
| } | ||
|
|
||
| void _export(int type) async { | ||
| String? folder = await chooseFolder(); | ||
| if (folder == null) { | ||
| return; | ||
| } | ||
| setState(() { | ||
| _exportStatus = 1; | ||
| }); | ||
| try { | ||
| await methods.exportToDir(folder, widget.selected, type); | ||
| setState(() { | ||
| _exportStatus = 2; | ||
| }); | ||
| } catch (e) { | ||
| setState(() { | ||
| _exportStatus = 3; | ||
| }); | ||
| } | ||
| } | ||
|
|
||
| Future<String?> chooseFolder() async { | ||
| if (Platform.isIOS) { | ||
| if (await confirmDialog( | ||
| context, | ||
| "您确认导出吗", | ||
| "将会导出到您iOS设备的\"文件\"应用中, 曾经导出过的同名文件会覆盖", | ||
| )) { | ||
| return methods.iosGetDocumentDir(); | ||
| } | ||
| return null; | ||
| } | ||
| if (Platform.isAndroid) { | ||
| late bool g; | ||
| if (androidVersion < 30) { | ||
| g = await Permission.storage.request().isGranted; | ||
| } else { | ||
| g = await Permission.manageExternalStorage.request().isGranted; | ||
| } | ||
| if (!g) { | ||
| throw Exception("申请权限被拒绝"); | ||
| } | ||
| } | ||
| return FilePicker.platform | ||
| .getDirectoryPath(dialogTitle: "选择一个文件夹, 将文件保存到这里"); | ||
| } | ||
| } |
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