mod: bangumi: load more followlist

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

lib/pages/bangumi/controller.dart

@@ -1,5 +1,8 @@
 import 'package:PiliPlus/http/loading_state.dart';
+import 'package:PiliPlus/models/bangumi/list.dart';
 import 'package:PiliPlus/pages/common/common_controller.dart';
+import 'package:PiliPlus/utils/extension.dart';
+import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:PiliPlus/http/bangumi.dart';
 import 'package:PiliPlus/utils/storage.dart';
@@ -7,33 +10,76 @@ import 'package:PiliPlus/utils/storage.dart';
 class BangumiController extends CommonController {
   bool isLoadingMore = true;
   RxBool isLogin = false.obs;
-  late int mid;
+  int? mid;
   dynamic userInfo;
 
-  Rx<LoadingState> followState = LoadingState.loading().obs;
-
   @override
   void onInit() {
     super.onInit();
     userInfo = GStorage.userInfo.get('userInfoCache');
-    if (userInfo != null) {
-      mid = userInfo.mid;
-    }
+    mid = userInfo?.mid;
     isLogin.value = userInfo != null;
 
     queryData();
     queryBangumiFollow();
-  }
-
-  // 我的订阅
-  Future queryBangumiFollow() async {
-    userInfo = userInfo ?? GStorage.userInfo.get('userInfoCache');
-    if (userInfo != null) {
-      followState.value = await BangumiHttp.bangumiFollow(mid: userInfo.mid);
+    if (isLogin.value) {
+      followController = ScrollController();
     }
   }
 
   @override
-  Future<LoadingState> customGetData() =>
-      BangumiHttp.bangumiList(page: currentPage);
+  Future onRefresh() {
+    if (isLogin.value) {
+      followPage = 1;
+      followEnd = false;
+    }
+    return super.onRefresh();
+  }
+
+  late int followPage = 1;
+  late RxInt followCount = (-1).obs;
+  late bool followLoading = false;
+  late bool followEnd = false;
+  late Rx<LoadingState> followState = LoadingState.loading().obs;
+  ScrollController? followController;
+
+  // 我的订阅
+  Future queryBangumiFollow([bool isRefresh = true]) async {
+    if (isLogin.value.not || followLoading || (isRefresh.not && followEnd)) {
+      return;
+    }
+    followLoading = true;
+    dynamic res = await BangumiHttp.bangumiFollow(
+      mid: mid,
+      type: 1,
+      pn: followPage,
+    );
+    if (res is Success) {
+      BangumiListDataModel data = res.response;
+      followPage++;
+      followEnd = data.hasNext == 0 || data.list.isNullOrEmpty;
+      followCount.value = data.total ?? -1;
+      if (isRefresh.not && followState.value is Success) {
+        data.list?.insertAll(0, (followState.value as Success).response);
+      }
+      followState.value = LoadingState.success(data.list);
+      if (isRefresh) {
+        followController?.animToTop();
+      }
+    } else {
+      followState.value = res;
+    }
+    followLoading = false;
+  }
+
+  @override
+  Future<LoadingState> customGetData() => BangumiHttp.bangumiList(
+        page: currentPage,
+      );
+
+  @override
+  void onClose() {
+    followController?.dispose();
+    super.onClose();
+  }
 }

lib/pages/bangumi/view.dart

@@ -1,11 +1,11 @@
 import 'dart:async';
 
+import 'package:PiliPlus/common/widgets/loading_widget.dart';
 import 'package:PiliPlus/common/widgets/refresh_indicator.dart';
 import 'package:PiliPlus/http/loading_state.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:get/get.dart';
-import 'package:nil/nil.dart';
 import 'package:PiliPlus/common/constants.dart';
 import 'package:PiliPlus/common/widgets/http_error.dart';
 import 'package:PiliPlus/pages/home/index.dart';
@@ -82,14 +82,19 @@ class _BangumiPageState extends State<BangumiPage>
                       child: Row(
                         mainAxisAlignment: MainAxisAlignment.spaceBetween,
                         children: [
-                          Text(
-                            '最近追番',
-                            style: Theme.of(context).textTheme.titleMedium,
+                          Obx(
+                            () => Text(
+                              '最近追番${_bangumiController.followCount.value == -1 ? '' : ' ${_bangumiController.followCount.value}'}',
+                              style: Theme.of(context).textTheme.titleMedium,
+                            ),
                           ),
                           IconButton(
                             tooltip: '刷新',
                             onPressed: () {
-                              _bangumiController.queryBangumiFollow();
+                              _bangumiController
+                                ..followPage = 1
+                                ..followEnd = false
+                                ..queryBangumiFollow();
                             },
                             icon: const Icon(
                               Icons.refresh,
@@ -177,9 +182,13 @@ class _BangumiPageState extends State<BangumiPage>
 
   Widget _buildFollowList(Success loadingState) {
     return ListView.builder(
+      controller: _bangumiController.followController,
       scrollDirection: Axis.horizontal,
       itemCount: loadingState.response.length,
       itemBuilder: (context, index) {
+        if (index == loadingState.response.length - 1) {
+          _bangumiController.queryBangumiFollow(false);
+        }
         return Container(
           width: Grid.maxRowWidth / 2,
           margin: EdgeInsets.only(
@@ -198,11 +207,18 @@ class _BangumiPageState extends State<BangumiPage>
 
   Widget _buildFollowBody(LoadingState loadingState) {
     return switch (loadingState) {
-      Loading() => nil,
+      Loading() => loadingWidget,
       Success() => (loadingState.response as List?)?.isNotEmpty == true
           ? _buildFollowList(loadingState)
           : const Center(child: Text('还没有追番')),
-      Error() => Center(child: Text(loadingState.errMsg)),
+      Error() => Container(
+          padding: const EdgeInsets.symmetric(horizontal: 16),
+          alignment: Alignment.center,
+          child: Text(
+            loadingState.errMsg,
+            textAlign: TextAlign.center,
+          ),
+        ),
       LoadingState() => throw UnimplementedError(),
     };
   }