fix scroll list action

ios/Flutter/.last_build_id

-440505e9ea1eee7043d2cbfeb318f6bc
+dab672e712362fdbbfa98386624f95d6

lib/presentation/screens/plot_detail/sc_plot_action.dart

 
   bool _showTitle(BuildContext context) {
     var kExpandedHeight = MediaQuery.of(context).size.width * 0.625 + 24;
-    // print("height: $kExpandedHeight");
-    // print('offset ${_scrollController.offset}');
     return _scrollController.hasClients &&
         _scrollController.offset > kExpandedHeight - kToolbarHeight;
   }
         child: HoldInfinityWidget(
           cropId: widget.cropId,
           cropCode: widget.cropCode,
+          parentScroll: _scrollController,
         ),
       ),
     );
 class HoldInfinityWidget extends StatelessWidget {
   int cropId;
   String cropCode;
-  HoldInfinityWidget({this.cropId, this.cropCode});
+  ScrollController parentScroll;
+  HoldInfinityWidget({this.cropId, this.cropCode, @required this.parentScroll});
   final GlobalKey<ScaffoldState> _scaffoldKey = new GlobalKey<ScaffoldState>();
   @override
   Widget build(BuildContext context) {
-    return Scaffold(key: _scaffoldKey, body: InfinityView(cropId: cropId));
+    return Scaffold(
+        key: _scaffoldKey,
+        body: InfinityView(
+          cropId: cropId,
+          parentScroll: parentScroll,
+        ));
   }
 }
 
 class InfinityView extends StatefulWidget {
   int cropId;
   String cropCode;
-  InfinityView({this.cropId, this.cropCode});
+  ScrollController parentScroll;
+  InfinityView({this.cropId, this.cropCode, @required this.parentScroll});
   @override
   _InfinityViewState createState() => _InfinityViewState();
 }
   final _scrollThreshold = 250.0;
   PlotDetailBloc _plotDetailBloc;
   var a = Get.put(ChangeToRefreshLists());
+  var heightOfActionButton = Get.width * 0.625 + 24;
 
   @override
   void initState() {
                             bottom: BorderSide(
                                 width: 0.5, color: COLOR_CONST.DEFAULT)),
                       ),
-                      child: Text(
-                        plot_detail_title,
-                        style: TextStyle(
-                            fontSize: 20, fontWeight: FontWeight.normal),
+                      child: Row(
+                        children: [
+                          Expanded(
+                              child: Text(
+                            plot_detail_title,
+                            textAlign: TextAlign.center,
+                            style: TextStyle(
+                                fontSize: 20, fontWeight: FontWeight.normal),
+                          )),
+                          IconButton(
+                              icon: (widget.parentScroll.position.pixels <
+                                      heightOfActionButton)
+                                  ? Icon(Icons.arrow_upward)
+                                  : Icon(Icons.arrow_downward),
+                              onPressed: () {
+                                if (widget.parentScroll.position.pixels <
+                                    heightOfActionButton) {
+                                  widget.parentScroll.animateTo(
+                                      heightOfActionButton,
+                                      duration: Duration(milliseconds: 500),
+                                      curve: Curves.easeOut);
+                                } else {
+                                  widget.parentScroll.animateTo(0.0,
+                                      duration: Duration(milliseconds: 500),
+                                      curve: Curves.easeOut);
+                                }
+                              })
+                        ],
                       )),
                   Expanded(
                       child: ListView.builder(

pubspec.yaml

 description: A new Flutter project.
 
 publish_to: 'none'
-version: 0.3.0+1
+version: 0.5.0+1
 
 environment:
   sdk: ">=2.7.0 <3.0.0"