refactored code to encapsulate date formatting

lib/pages/flood_station_page.dart

@@ -16,6 +16,8 @@ class FloodStationPage extends StatefulWidget {
 }
 
 class _FloodStationPageState extends State<FloodStationPage> {
+  bool _tableVisible = false;
+
   @override
   void deactivate() {
     context.read<FloodStationProvider>().selectedStation = null;
@@ -29,6 +31,14 @@ class _FloodStationPageState extends State<FloodStationPage> {
     return Scaffold(
       appBar: AppBar(
         title: Text(station?.label ?? ''),
+        actions: [
+          TextButton(
+            onPressed: () => setState(() {
+              _tableVisible = !_tableVisible;
+            }),
+            child: _tableVisible ? Text('Show Graph') : Text('Show Table'),
+          ),
+        ],
       ),
       body: FutureBuilder<List<Reading>>(
           future: Api.fetchReadingsFromStation(station?.id ?? ''),
@@ -36,6 +46,12 @@ class _FloodStationPageState extends State<FloodStationPage> {
             if (snapshot.hasData) {
               if (snapshot.data!.isEmpty) {
                 return Center(child: Text('No readings on record.'));
+              } else if (_tableVisible) {
+                return SingleChildScrollView(
+                  child: Table(
+                    children: _getTableChildren(snapshot.data!),
+                  ),
+                );
               }
               return Center(
                 child: Padding(
@@ -53,4 +69,17 @@ class _FloodStationPageState extends State<FloodStationPage> {
           }),
     );
   }
+
+  List<TableRow> _getTableChildren(List<Reading> list) {
+    return list
+        .map<TableRow>(
+          (e) => TableRow(
+            children: [
+              Text(e.dateTime.toString()),
+              Text(e.value.toString()),
+            ],
+          ),
+        )
+        .toList();
+  }
 }