custom audio order

Closes #1636

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

lib/grpc/audio.dart

@@ -44,6 +44,7 @@ class AudioGrpc {
     String? next,
     int qn = 80,
     int fnval = 4048,
+    ListOrder order = ListOrder.ORDER_NORMAL,
   }) {
     return GrpcReq.request(
       GrpcUrl.audioPlayList,
@@ -63,7 +64,7 @@ class AudioGrpc {
           voiceBalance: Int64(1),
         ),
         extraId: extraId,
-        sortOpt: SortOption(order: ListOrder.ORDER_NORMAL),
+        sortOpt: SortOption(order: order),
         pagination: Pagination(pageSize: 20, next: next),
       ),
       PlaylistResp.fromBuffer,

lib/pages/audio/controller.dart

@@ -9,7 +9,8 @@ import 'package:PiliPlus/grpc/bilibili/app/listener/v1.pb.dart'
         PlaylistResp,
         PlaylistSource,
         PlayInfo,
-        ThumbUpReq_ThumbType;
+        ThumbUpReq_ThumbType,
+        ListOrder;
 import 'package:PiliPlus/http/constants.dart';
 import 'package:PiliPlus/http/ua_type.dart';
 import 'package:PiliPlus/pages/common/common_intro_controller.dart'
@@ -78,6 +79,8 @@ class AudioController extends GetxController
   String? _next;
   bool get reachStart => _prev == null;
 
+  ListOrder order = ListOrder.ORDER_NORMAL;
+
   @override
   void onInit() {
     super.onInit();
@@ -163,6 +166,7 @@ class AudioController extends GetxController
           ? _next
           : null,
       extraId: extraId,
+      order: order,
     );
     if (res.isSuccess) {
       final PlaylistResp data = res.data;
@@ -576,6 +580,9 @@ class AudioController extends GetxController
     if (index != null && playlist != null && player != null) {
       final next = index! + 1;
       if (next < playlist!.length) {
+        if (next == playlist!.length - 1 && _next != null) {
+          _queryPlayList(isLoadNext: true);
+        }
         playIndex(next);
         return true;
       }
@@ -644,6 +651,13 @@ class AudioController extends GetxController
     }
   }
 
+  void onChangeOrder(ListOrder value) {
+    if (order != value) {
+      order = value;
+      _queryPlayList(isInit: true);
+    }
+  }
+
   @override
   void onClose() {
     // _cancelTimer();

lib/pages/audio/view.dart

@@ -56,6 +56,10 @@ class AudioPage extends StatefulWidget {
   );
 }
 
+extension _ListOrderExt on ListOrder {
+  String get title => const ['无序', '正序', '倒序', '随机'][value];
+}
+
 class _AudioPageState extends State<AudioPage> {
   final _controller = Get.put(
     AudioController(),
@@ -75,15 +79,30 @@ class _AudioPageState extends State<AudioPage> {
     final padding = MediaQuery.viewPaddingOf(context);
     return Scaffold(
       appBar: AppBar(
-        actions: _controller.isVideo
+        actions: [
-            ? [
+          Builder(
+            builder: (context) {
+              return PopupMenuButton<ListOrder>(
+                tooltip: '排序',
+                icon: const Icon(Icons.sort),
+                initialValue: _controller.order,
+                onSelected: (value) {
+                  _controller.onChangeOrder(value);
+                  (context as Element).markNeedsBuild();
+                },
+                itemBuilder: (context) => ListOrder.values
+                    .map((e) => PopupMenuItem(value: e, child: Text(e.title)))
+                    .toList(),
+              );
+            },
+          ),
+          if (_controller.isVideo)
             IconButton(
               onPressed: _showMore,
               icon: const Icon(Icons.more_vert),
             ),
           const SizedBox(width: 5),
-              ]
+        ],
-            : null,
       ),
       body: Padding(
         padding: EdgeInsets.only(