mod: 支持系统消息查看，美化界面，点击清除未读提示，支持未读刷新

修复私信页点击视频后反复提示已读成功的问题

lib/pages/msg_feed_top/sys_msg/controller.dart

@@ -0,0 +1,63 @@
+import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
+import 'package:get/get.dart';
+import 'package:PiliPalaX/http/msg.dart';
+
+import '../../../models/msg/msgfeed_sys_msg.dart';
+
+class SysMsgController extends GetxController {
+  RxList<SystemNotifyList> msgFeedSysMsgList = <SystemNotifyList>[].obs;
+  bool isLoading = false;
+  int cursor = -1;
+  int cursorTime = -1;
+  bool isEnd = false;
+
+  Future queryMsgFeedSysMsg() async {
+    if (isLoading) return;
+    isLoading = true;
+    var resUserNotify = await MsgHttp.msgFeedSysUserNotify();
+    var resUnifiedNotify = await MsgHttp.msgFeedSysUnifiedNotify();
+    isLoading = false;
+    List<SystemNotifyList> systemNotifyList = [];
+    if (resUserNotify['status']) {
+      MsgFeedSysMsg data = MsgFeedSysMsg.fromJson(resUserNotify['data']);
+      if (data.systemNotifyList != null) {
+        systemNotifyList.addAll(data.systemNotifyList!);
+      }
+    }
+    if (resUnifiedNotify['status']) {
+      MsgFeedSysMsg data = MsgFeedSysMsg.fromJson(resUnifiedNotify['data']);
+      if (data.systemNotifyList != null) {
+        systemNotifyList.addAll(data.systemNotifyList!);
+      }
+    }
+    if (systemNotifyList.isNotEmpty) {
+      systemNotifyList.sort((a, b) => b.cursor!.compareTo(a.cursor!));
+      msgFeedSysMsgList.assignAll(systemNotifyList);
+      msgSysUpdateCursor(msgFeedSysMsgList.first.cursor!);
+    } else {
+      SmartDialog.showToast(
+          "UserNotify: ${resUserNotify['msg']} UnifiedNotify: ${resUnifiedNotify['msg']}");
+    }
+  }
+
+  Future msgSysUpdateCursor(int cursor) async {
+    var res = await MsgHttp.msgSysUpdateCursor(cursor);
+    if (res['status']) {
+      SmartDialog.showToast('已读成功');
+      return true;
+    } else {
+      SmartDialog.showToast(res['msg']);
+      return false;
+    }
+  }
+  Future onLoad() async {
+    if (isEnd) return;
+    queryMsgFeedSysMsg();
+  }
+
+  Future onRefresh() async {
+    cursor = -1;
+    cursorTime = -1;
+    queryMsgFeedSysMsg();
+  }
+}

lib/pages/msg_feed_top/sys_msg/index.dart

@@ -0,0 +1,4 @@
+library whisper;
+
+export './controller.dart';
+export './view.dart';

lib/pages/msg_feed_top/sys_msg/view.dart

@@ -0,0 +1,123 @@
+import 'dart:convert';
+
+import 'package:easy_debounce/easy_throttle.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+
+import 'controller.dart';
+
+class SysMsgPage extends StatefulWidget {
+  const SysMsgPage({super.key});
+
+  @override
+  State<SysMsgPage> createState() => _SysMsgPageState();
+}
+
+class _SysMsgPageState extends State<SysMsgPage> {
+  late final SysMsgController _sysMsgController = Get.put(SysMsgController());
+  final ScrollController _scrollController = ScrollController();
+
+  @override
+  void initState() {
+    _sysMsgController.queryMsgFeedSysMsg();
+    super.initState();
+    _scrollController.addListener(_scrollListener);
+  }
+
+  Future _scrollListener() async {
+    if (_scrollController.position.pixels >=
+        _scrollController.position.maxScrollExtent - 200) {
+      EasyThrottle.throttle('my-throttler', const Duration(milliseconds: 800),
+          () async {
+        await _sysMsgController.onLoad();
+      });
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('系统通知'),
+      ),
+      body: RefreshIndicator(
+        onRefresh: () async {
+          await _sysMsgController.onRefresh();
+        },
+        child: SingleChildScrollView(
+          controller: _scrollController,
+          child: LayoutBuilder(
+              builder: (BuildContext context, BoxConstraints constraints) {
+            return Obx(
+              () {
+                if (_sysMsgController.msgFeedSysMsgList.isEmpty) {
+                  return const Center(
+                    child: CircularProgressIndicator(),
+                  );
+                }
+                return ListView.separated(
+                  itemCount: _sysMsgController.msgFeedSysMsgList.length,
+                  shrinkWrap: true,
+                  physics: const NeverScrollableScrollPhysics(),
+                  itemBuilder: (_, int i) {
+                    String? content = _sysMsgController.msgFeedSysMsgList[i].content;
+                    if (content != null) {
+                      try {
+                        dynamic jsonContent = json.decode(content);
+                        if (jsonContent != null && jsonContent['web'] != null) {
+                          content = jsonContent['web'];
+                        }
+                      } catch (_) {}
+                    }
+                    return ListTile(
+                        onTap: () {},
+                        title: Text(
+                          "${_sysMsgController.msgFeedSysMsgList[i].title}",
+                          style: Theme.of(context).textTheme.titleMedium!.copyWith(
+                              color: Theme.of(context).colorScheme.primary
+                          ),
+                        ),
+                        subtitle: Column(
+                            crossAxisAlignment: CrossAxisAlignment.start,
+                            children: [
+                              const SizedBox(height: 4),
+                          Text(
+                              "$content",
+                              style: Theme.of(context)
+                                  .textTheme
+                                  .bodySmall!
+                                  .copyWith(
+                                      color: Theme.of(context)
+                                          .colorScheme
+                                          .outline)),
+                              const SizedBox(height: 4),
+                          Text(
+                              "${_sysMsgController.msgFeedSysMsgList[i].timeAt}",
+                              maxLines: 1,
+                              overflow: TextOverflow.ellipsis,
+                              style: Theme.of(context)
+                                  .textTheme
+                                  .bodySmall!
+                                  .copyWith(
+                                      color: Theme.of(context)
+                                          .colorScheme
+                                          .outline.withOpacity(0.8))),
+                        ]));
+                  },
+                  separatorBuilder: (BuildContext context, int index) {
+                    return Divider(
+                      indent: 72,
+                      endIndent: 20,
+                      height: 6,
+                      color: Colors.grey.withOpacity(0.1),
+                    );
+                  },
+                );
+              },
+            );
+          }),
+        ),
+      ),
+    );
+  }
+}