feat: support launch at startup (#532)

ui/flutter/lib/app/modules/setting/views/setting_view.dart

@@ -6,13 +6,14 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:get/get.dart';
 import 'package:intl/intl.dart';
+import 'package:launch_at_startup/launch_at_startup.dart';
 import 'package:url_launcher/url_launcher.dart';
 
 import '../../../../api/model/downloader_config.dart';
-import '../../../../database/database.dart';
 import '../../../../i18n/message.dart';
 import '../../../../util/input_formatter.dart';
 import '../../../../util/locale_manager.dart';
+import '../../../../util/log_util.dart';
 import '../../../../util/message.dart';
 import '../../../../util/package_info.dart';
 import '../../../../util/util.dart';
@@ -130,9 +131,36 @@ class SettingView extends GetView<SettingController> {
                     "https://addons.mozilla.org/zh-CN/firefox/addon/gopeed-extension",
               ),
             ],
-          ).paddingOnly(top: 5, bottom: 5));
+          ).paddingOnly(top: 5));
     }
 
+    // Currently auto startup only support Windows and Linux
+    final buildAutoStartup = !Util.isWindows() && !Util.isLinux()
+        ? () => null
+        : _buildConfigItem('launchAtStartup'.tr, () {
+            return appController.autoStartup.value ? 'on'.tr : 'off'.tr;
+          }, (Key key) {
+            return Container(
+              alignment: Alignment.centerLeft,
+              child: Switch(
+                value: appController.autoStartup.value,
+                onChanged: (bool value) async {
+                  try {
+                    if (value) {
+                      await launchAtStartup.enable();
+                    } else {
+                      await launchAtStartup.disable();
+                    }
+                    appController.autoStartup.value = value;
+                  } catch (e) {
+                    showErrorMessage(e);
+                    logger.e('launchAtStartup fail', e);
+                  }
+                },
+              ),
+            );
+          });
+
     // http config items start
     final httpConfig = downloaderCfg.value.protocolConfig.http;
     final buildHttpUa =
@@ -784,7 +812,8 @@ class SettingView extends GetView<SettingController> {
                           children: _addDivider([
                             buildDownloadDir(),
                             buildMaxRunning(),
-                            buildBrowserExtension()
+                            buildBrowserExtension(),
+                            buildAutoStartup(),
                           ]),
                         )),
                         const Text('HTTP'),