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1
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+import 'dart:io';
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2
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+import 'dart:isolate';
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3
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+import 'dart:ui';
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4
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+
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1
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import 'package:common_utils/common_utils.dart';
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5
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import 'package:common_utils/common_utils.dart';
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6
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+import 'package:device_info/device_info.dart';
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2
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import 'package:flutter/material.dart';
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7
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import 'package:flutter/material.dart';
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import 'package:flutter_picker/Picker.dart';
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8
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import 'package:flutter_picker/Picker.dart';
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import 'package:flutter_screenutil/flutter_screenutil.dart';
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9
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import 'package:flutter_screenutil/flutter_screenutil.dart';
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@@ -6,11 +11,15 @@ import 'package:one_key/res/colors.dart'; |
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@@ -6,11 +11,15 @@ import 'package:one_key/res/colors.dart'; |
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6
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import 'package:one_key/widgets/round_button.dart';
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11
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import 'package:one_key/widgets/round_button.dart';
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import 'package:one_key/widgets/system_app_bar.dart';
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import 'package:one_key/widgets/system_app_bar.dart';
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import 'package:one_key/widgets/v_empty_view.dart';
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import 'package:one_key/widgets/v_empty_view.dart';
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14
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+import 'package:path_provider/path_provider.dart';
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15
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+import 'package:permission_handler/permission_handler.dart';
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9
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16
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import '../../../../utils/dialog_util.dart';
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import '../../../../utils/dialog_util.dart';
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11
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import '../../../../utils/screen_util.dart';
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import '../../../../utils/screen_util.dart';
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12
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import '../../../../utils/utils.dart';
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import '../../../../utils/utils.dart';
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13
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import '../../../../widgets/h_empty_view.dart';
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20
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import '../../../../widgets/h_empty_view.dart';
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21
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+import 'package:flutter_downloader/flutter_downloader.dart';
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22
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+import 'package:android_path_provider/android_path_provider.dart';
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14
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23
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15
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/**
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24
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/**
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16
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* 导出预订数据
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25
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* 导出预订数据
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@@ -31,6 +40,172 @@ class _ExportBookDataPageState extends State<ExportBookDataPage> { |
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@@ -31,6 +40,172 @@ class _ExportBookDataPageState extends State<ExportBookDataPage> { |
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31
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40
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32
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List<String> data = ['到店时间', '下单时间'];
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41
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List<String> data = ['到店时间', '下单时间'];
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33
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int timeIndex;
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42
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int timeIndex;
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43
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+ ReceivePort _port = ReceivePort();
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44
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+ String _localPath;
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45
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+
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46
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+ String taskId;
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47
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+ DownloadTaskStatus status;
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48
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+ int progress;
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+
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+ @override
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+ void initState() {
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52
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+ super.initState();
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+
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+ _bindBackgroundIsolate();
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+
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56
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+ FlutterDownloader.registerCallback(downloadCallback, step: 1);
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+ }
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58
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+
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59
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+ @override
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60
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+ void dispose() {
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61
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+ _unbindBackgroundIsolate();
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62
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+ super.dispose();
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63
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+ }
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+
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65
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+ @pragma('vm:entry-point')
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66
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+ static void downloadCallback(
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67
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+ String id,
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68
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+ int status,
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69
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+ int progress,
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70
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+ ) {
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71
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+ print(
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72
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+ 'Callback on background isolate: '
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73
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+ 'task ($id) is in status ($status) and process ($progress)',
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74
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+ );
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75
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+
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76
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+ IsolateNameServer.lookupPortByName('downloader_send_port')
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77
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+ ?.send([id, status, progress]);
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78
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+ }
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79
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+
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80
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+ // 根据taskId打开下载文件
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81
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+ Future<bool> _openDownloadedFile(taskId) {
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82
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+ return FlutterDownloader.open(taskId: taskId);
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83
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+ }
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84
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+
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85
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+ void _bindBackgroundIsolate() {
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86
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+ final isSuccess = IsolateNameServer.registerPortWithName(
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87
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+ _port.sendPort,
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88
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+ 'downloader_send_port',
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89
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+ );
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90
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+ if (!isSuccess) {
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91
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+ _unbindBackgroundIsolate();
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92
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+ _bindBackgroundIsolate();
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93
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+ return;
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94
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+ }
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95
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+ _port.listen((dynamic data) {
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96
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+ taskId = (data as List<dynamic>)[0] as String;
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97
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+ status = DownloadTaskStatus(data[1] as int);
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98
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+ progress = data[2] as int;
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99
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+
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100
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+ print(
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101
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+ 'Callback on UI isolate: '
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102
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+ 'task ($taskId) is in status ($status) and process ($progress)',
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103
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+ );
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104
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+ if (status == DownloadTaskStatus.undefined) {
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105
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+ // _requestDownload(task);
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106
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+ } else if (status == DownloadTaskStatus.running) {
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107
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+ // _pauseDownload(task);
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108
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+ } else if (status == DownloadTaskStatus.paused) {
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109
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+ // _resumeDownload(task);
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110
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+ } else if (status == DownloadTaskStatus.complete ||
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111
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+ status == DownloadTaskStatus.canceled) {
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112
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+ // _delete(task);
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113
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+ // 显示是否打开的对话框
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114
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+ showDialog(
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115
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+ // 设置点击 dialog 外部不取消 dialog，默认能够取消
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116
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+ barrierDismissible: false,
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117
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+ context: context,
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118
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+ builder: (context) => AlertDialog(
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119
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+ title: Text('提示'),
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120
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+ // 标题文字样式
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121
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+ content: Text('文件下载完成，是否打开？'),
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122
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+ // 内容文字样式
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123
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+ backgroundColor: MyColours.color_ffffff,
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124
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+ elevation: 8.0,
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125
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+ // 投影的阴影高度
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126
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+ semanticLabel: 'Label',
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127
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+ // 这个用于无障碍下弹出 dialog 的提示
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128
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+ shape: Border.all(),
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129
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+ // dialog 的操作按钮，actions 的个数尽量控制不要过多，否则会溢出 `Overflow`
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130
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+ actions: <Widget>[
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131
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+ // 点击取消按钮
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132
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+ InkWell(
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133
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+ onTap: () => Navigator.pop(context), child: Text('取消')),
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134
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+ // 点击打开按钮
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135
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+ InkWell(
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136
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+ onTap: () {
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137
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+ Navigator.pop(context);
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138
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+ // 打开文件
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139
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+ _openDownloadedFile(taskId).then((success) {
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140
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+ if (!success) {
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141
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+ Utils.showToast('Cannot open this file');
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142
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+ // Scaffold.of(context).showSnackBar(SnackBar(
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143
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+ // content: Text('Cannot open this file')));
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144
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+ }
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145
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+ });
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146
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+ },
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147
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+ child: Text('打开')),
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148
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+ ],
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149
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+ ));
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150
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+ } else if (status == DownloadTaskStatus.failed) {
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151
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+ // _retryDownload(task);
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152
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+ }
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153
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+ });
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154
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+ }
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155
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+
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156
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+ Future<void> _prepareSaveDir() async {
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157
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+ _localPath = (await _getSavedDir());
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158
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+ final savedDir = Directory(_localPath);
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159
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+ if (!savedDir.existsSync()) {
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160
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+ await savedDir.create();
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|
161
|
+ }
|
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|
162
|
+ }
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|
163
|
+
|
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|
164
|
+ Future<String> _getSavedDir() async {
|
|
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|
165
|
+ String externalStorageDirPath;
|
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|
166
|
+
|
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|
167
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+ if (Platform.isAndroid) {
|
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|
168
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+ try {
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|
169
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+ externalStorageDirPath = await AndroidPathProvider.downloadsPath;
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|
170
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+ } catch (err, st) {
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|
171
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+ print('failed to get downloads path: $err, $st');
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|
172
|
+
|
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|
173
|
+ final directory = await getExternalStorageDirectory();
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|
|
174
|
+ externalStorageDirPath = directory?.path;
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|
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|
175
|
+ }
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|
176
|
+ } else if (Platform.isIOS) {
|
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|
177
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+ externalStorageDirPath =
|
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|
178
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+ (await getApplicationDocumentsDirectory()).absolute.path;
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|
179
|
+ }
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|
|
180
|
+ return externalStorageDirPath;
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|
181
|
+ }
|
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|
182
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+
|
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|
183
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+ Future<bool> _checkPermission() async {
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184
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+ if (Platform.isIOS) {
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|
185
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+ return true;
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|
186
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+ }
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|
187
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+
|
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|
188
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+ if (Platform.isAndroid) {
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|
189
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+ final info = await DeviceInfoPlugin().androidInfo;
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|
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|
190
|
+ if (info.version.sdkInt > 28) {
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|
191
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+ return true;
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|
192
|
+ }
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|
193
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+
|
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|
194
|
+ final status = await Permission.storage.status;
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|
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|
195
|
+ if (status == PermissionStatus.granted) {
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|
196
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+ return true;
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|
197
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+ }
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|
198
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+
|
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|
199
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+ final result = await Permission.storage.request();
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|
|
|
200
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+ return result == PermissionStatus.granted;
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|
201
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+ }
|
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|
202
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+
|
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|
203
|
+ throw StateError('unknown platform');
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|
204
|
+ }
|
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|
|
205
|
+
|
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|
206
|
+ void _unbindBackgroundIsolate() {
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|
207
|
+ IsolateNameServer.removePortNameMapping('downloader_send_port');
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|
|
|
208
|
+ }
|
|
34
|
|
209
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|
|
35
|
///时间选择
|
210
|
///时间选择
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|
36
|
Widget _select(String title, String hintText, GestureTapCallback onTap) {
|
211
|
Widget _select(String title, String hintText, GestureTapCallback onTap) {
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|
@@ -124,7 +299,12 @@ class _ExportBookDataPageState extends State<ExportBookDataPage> { |
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@@ -124,7 +299,12 @@ class _ExportBookDataPageState extends State<ExportBookDataPage> { |
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124
|
// controller: controller,
|
299
|
// controller: controller,
|
|
125
|
child: Column(
|
300
|
child: Column(
|
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126
|
children: [
|
301
|
children: [
|
|
127
|
- VEmptyView(10),
|
302
|
+ (status == DownloadTaskStatus.running ||
|
|
|
|
303
|
+ status == DownloadTaskStatus.paused)
|
|
|
|
304
|
+ ? LinearProgressIndicator(
|
|
|
|
305
|
+ value: progress / 100,
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|
|
306
|
+ )
|
|
|
|
307
|
+ : VEmptyView(10),
|
|
128
|
Container(
|
308
|
Container(
|
|
129
|
padding: EdgeInsets.only(left: w(16)),
|
309
|
padding: EdgeInsets.only(left: w(16)),
|
|
130
|
color: MyColours.color_ffffff,
|
310
|
color: MyColours.color_ffffff,
|
|
@@ -234,6 +414,24 @@ class _ExportBookDataPageState extends State<ExportBookDataPage> { |
|
@@ -234,6 +414,24 @@ class _ExportBookDataPageState extends State<ExportBookDataPage> { |
|
234
|
radius: r(10),
|
414
|
radius: r(10),
|
|
235
|
fontSize: 32,
|
415
|
fontSize: 32,
|
|
236
|
isBold: true,
|
416
|
isBold: true,
|
|
|
|
417
|
+ onPressed: () async {
|
|
|
|
418
|
+ bool _permissionReady = await _checkPermission();
|
|
|
|
419
|
+ if (_permissionReady) {
|
|
|
|
420
|
+ await _prepareSaveDir();
|
|
|
|
421
|
+ }
|
|
|
|
422
|
+ taskId = await FlutterDownloader.enqueue(
|
|
|
|
423
|
+ url:
|
|
|
|
424
|
+ 'http://englishonlineclub.com/pdf/iOS%20Programming%20-%20The%20Big%20Nerd%20Ranch%20Guide%20(6th%20Edition)%20[EnglishOnlineClub.com].pdf',
|
|
|
|
425
|
+ headers: {
|
|
|
|
426
|
+ 'auth': 'test_for_sql_encoding'
|
|
|
|
427
|
+ }, // optional: header send with url (auth token etc)
|
|
|
|
428
|
+ savedDir: _localPath,
|
|
|
|
429
|
+ showNotification:
|
|
|
|
430
|
+ true, // show download progress in status bar (for Android)
|
|
|
|
431
|
+ openFileFromNotification:
|
|
|
|
432
|
+ true, // click on notification to open downloaded file (for Android)
|
|
|
|
433
|
+ );
|
|
|
|
434
|
+ },
|
|
237
|
)
|
435
|
)
|
|
238
|
],
|
436
|
],
|
|
239
|
),
|
437
|
),
|
