opt select topic

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

lib/pages/dynamics_create/view.dart

@@ -3,6 +3,8 @@ import 'dart:math';
 import 'package:PiliPlus/common/widgets/button/icon_button.dart';
 import 'package:PiliPlus/common/widgets/button/toolbar_icon_button.dart';
 import 'package:PiliPlus/common/widgets/custom_icon.dart';
+import 'package:PiliPlus/common/widgets/draggable_scrollable_sheet.dart'
+    show DraggableScrollableSheet;
 import 'package:PiliPlus/common/widgets/pair.dart';
 import 'package:PiliPlus/http/dynamics.dart';
 import 'package:PiliPlus/models/common/publish_panel_type.dart';
@@ -15,7 +17,7 @@ import 'package:PiliPlus/pages/emote/controller.dart';
 import 'package:PiliPlus/pages/emote/view.dart';
 import 'package:PiliPlus/utils/request_utils.dart';
 import 'package:PiliPlus/utils/storage.dart';
-import 'package:flutter/material.dart';
+import 'package:flutter/material.dart' hide DraggableScrollableSheet;
 import 'package:flutter/services.dart' show LengthLimitingTextInputFormatter;
 import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
 import 'package:get/get.dart';
@@ -596,6 +598,7 @@ class _CreateDynPanelState extends CommonPublishPageState<CreateDynPanel> {
     }
   }
 
+  double _offset = 0;
   Future<void> _onSelectTopic() async {
     TopicPubSearchItem? res = await showModalBottomSheet(
       context: context,
@@ -609,10 +612,13 @@ class _CreateDynPanelState extends CommonPublishPageState<CreateDynPanel> {
         snap: true,
         minChildSize: 0,
         maxChildSize: 1,
-        initialChildSize: 0.65,
+        initialChildSize: _offset == 0 ? 0.65 : 1,
+        initialScrollOffset: _offset,
         snapSizes: [0.65],
-        builder: (context, scrollController) =>
-            SelectTopicPanel(scrollController: scrollController),
+        builder: (context, scrollController) => SelectTopicPanel(
+          scrollController: scrollController,
+          callback: (offset) => _offset = offset,
+        ),
       ),
     );
     if (res != null) {

lib/pages/dynamics_select_topic/view.dart

@@ -13,9 +13,11 @@ class SelectTopicPanel extends StatefulWidget {
   const SelectTopicPanel({
     super.key,
     this.scrollController,
+    this.callback,
   });
 
   final ScrollController? scrollController;
+  final ValueChanged<double>? callback;
 
   @override
   State<SelectTopicPanel> createState() => _SelectTopicPanelState();
@@ -24,6 +26,8 @@ class SelectTopicPanel extends StatefulWidget {
 class _SelectTopicPanelState extends State<SelectTopicPanel> {
   final _controller = Get.put(SelectTopicController());
 
+  double offset = 0;
+
   @override
   void initState() {
     super.initState();
@@ -32,17 +36,20 @@ class _SelectTopicPanelState extends State<SelectTopicPanel> {
     }
   }
 
+  @override
+  void dispose() {
+    widget.callback?.call(offset);
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
     return Column(
       children: [
-        InkWell(
+        GestureDetector(
           onTap: Get.back,
-          borderRadius: const BorderRadius.only(
-            topLeft: Radius.circular(18),
-            topRight: Radius.circular(18),
-          ),
+          behavior: HitTestBehavior.opaque,
           child: Container(
             height: 35,
             padding: const EdgeInsets.only(bottom: 2),
@@ -76,9 +83,7 @@ class _SelectTopicPanelState extends State<SelectTopicPanel> {
               border: const OutlineInputBorder(
                 gapPadding: 0,
                 borderSide: BorderSide.none,
-                borderRadius: BorderRadius.all(
-                  Radius.circular(25),
-                ),
+                borderRadius: BorderRadius.all(Radius.circular(25)),
               ),
               isDense: true,
               filled: true,
@@ -140,7 +145,12 @@ class _SelectTopicPanelState extends State<SelectTopicPanel> {
       Loading() => loadingWidget,
       Success<List<TopicPubSearchItem>?>(:var response) =>
         response?.isNotEmpty == true
-            ? ListView.builder(
+            ? NotificationListener<ScrollNotification>(
+                onNotification: (notification) {
+                  offset = notification.metrics.pixels;
+                  return false;
+                },
+                child: ListView.builder(
                   padding: EdgeInsets.only(
                     bottom: MediaQuery.paddingOf(context).bottom +
                         MediaQuery.viewInsetsOf(context).bottom +
@@ -185,16 +195,16 @@ class _SelectTopicPanelState extends State<SelectTopicPanel> {
                     );
                   },
                   itemCount: response!.length,
-              )
-            : scrollErrorWidget(
-                controller: widget.scrollController,
-                onReload: _controller.onReload,
                 ),
-      Error(:var errMsg) => scrollErrorWidget(
+              )
+            : _errWidget(),
+      Error(:var errMsg) => _errWidget(errMsg),
+    };
+  }
+
+  Widget _errWidget([String? errMsg]) => scrollErrorWidget(
         errMsg: errMsg,
         controller: widget.scrollController,
         onReload: _controller.onReload,
-        ),
-    };
-  }
+      );
 }