update dm

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/pages/download/search/view.dart

@@ -7,6 +7,7 @@ import 'package:PiliPlus/services/download/download_service.dart';
 import 'package:PiliPlus/utils/grid.dart';
 import 'package:flutter/material.dart'
     hide SliverGridDelegateWithMaxCrossAxisExtent;
+import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
 import 'package:get/get.dart';
 
 class DownloadSearchPage extends StatefulWidget {
@@ -47,6 +48,34 @@ class _DownloadSearchPageState
     ),
   ];
 
+  @override
+  List<Widget>? get multiSelectActions => [
+    TextButton(
+      style: TextButton.styleFrom(visualDensity: VisualDensity.compact),
+      onPressed: () async {
+        final allChecked = controller.allChecked.toSet();
+        controller.handleSelect();
+        final res = await Future.wait(
+          allChecked.map(
+            (e) => _downloadService.downloadDanmaku(
+              entry: e,
+              isUpdate: true,
+            ),
+          ),
+        );
+        if (res.every((e) => e)) {
+          SmartDialog.showToast('更新成功');
+        } else {
+          SmartDialog.showToast('更新失败');
+        }
+      },
+      child: Text(
+        '更新',
+        style: TextStyle(color: Get.theme.colorScheme.onSurface),
+      ),
+    ),
+  ];
+
   @override
   Widget buildList(List<BiliDownloadEntryInfo> list) {
     if (list.isNotEmpty) {