lesson-35

Author: iamshaunjp

world_time_app/lib/pages/choose_location.dart

@@ -19,6 +19,17 @@ class _ChooseLocationState extends State<ChooseLocation> {
     WorldTime(url: 'Asia/Jakarta', location: 'Jakarta', flag: 'indonesia.png'),
   ];
 
+  void updateTime(index) async {
+    WorldTime instance = locations[index];
+    await instance.getTime();
+    Navigator.pop(context, {
+      'location': instance.location,
+      'time': instance.time,
+      'flag': instance.flag,
+      'isDaytime': instance.isDaytime,
+    });
+  }
+
   @override
   void initState() {
     super.initState();
@@ -41,7 +52,9 @@ class _ChooseLocationState extends State<ChooseLocation> {
             padding: const EdgeInsets.symmetric(vertical: 1.0, horizontal: 4.0),
             child: Card(
               child: ListTile(
-                onTap: () {},
+                onTap: () {
+                  updateTime(index);
+                },
                 title: Text(locations[index].location),
                 leading: CircleAvatar(
                   backgroundImage: AssetImage('assets/${locations[index].flag}'),

world_time_app/lib/pages/home.dart

@@ -9,15 +9,15 @@ class _HomeState extends State<Home> {
 
   Map data = {};
 
-  @override
-  void initState() {
-    super.initState();
-  }
+//  @override
+//  void initState() {
+//    super.initState();
+//  }
 
   @override
   Widget build(BuildContext context) {
 
-    data = ModalRoute.of(context).settings.arguments;
+    data = data.isNotEmpty ? data : ModalRoute.of(context).settings.arguments;
 
     // set background image
     String bgImage = data['isDaytime'] ? 'day.png' : 'night.png';
@@ -38,8 +38,18 @@ class _HomeState extends State<Home> {
             child: Column(
               children: <Widget>[
                 FlatButton.icon(
-                  onPressed: () {
-                    Navigator.pushNamed(context, '/location');
+                  onPressed: () async {
+                    dynamic result = await Navigator.pushNamed(context, '/location');
+                    if(result != null){
+                      setState(() {
+                        data = {
+                          'time': result['time'],
+                          'location': result['location'],
+                          'isDaytime': result['isDaytime'],
+                          'flag': result['flag']
+                        };
+                      });
+                    }
                   },
                   icon: Icon(
                     Icons.edit_location,