first ui elements using the new structs

frontend/lib/pages/overview.dart

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+import 'package:fast_network_navigation/modules/greeter.dart';
+import 'package:flutter/material.dart';
+import 'package:sliding_up_panel/sliding_up_panel.dart';
+
+import 'package:fast_network_navigation/modules/landmarks_overview.dart';
+import 'package:fast_network_navigation/modules/map.dart';
+
+
+
+class NavigationOverview extends StatefulWidget {
+  @override
+  State<NavigationOverview> createState() => _NavigationOverviewState();
+}
+
+
+
+class _NavigationOverviewState extends State<NavigationOverview> {
+
+  @override
+  Widget build(BuildContext context) {
+    final ThemeData theme = Theme.of(context);
+    return SlidingUpPanel(
+        renderPanelSheet: false,
+        panel: _floatingPanel(theme),
+        collapsed: _floatingCollapsed(theme),
+        body: MapWidget()
+    );
+  }
+
+  Widget _floatingCollapsed(ThemeData theme){
+    return Container(
+      decoration: BoxDecoration(
+        color: theme.canvasColor,
+        borderRadius: BorderRadius.only(topLeft: Radius.circular(24.0), topRight: Radius.circular(24.0)),
+        boxShadow: []
+      ),
+      
+      child: Greeter(theme)
+    );
+  }
+
+  Widget _floatingPanel(ThemeData theme){
+    return Container(
+      decoration: BoxDecoration(
+        color: Colors.white,
+        borderRadius: BorderRadius.all(Radius.circular(24.0)),
+        boxShadow: [
+          BoxShadow(
+            blurRadius: 20.0,
+            color: theme.shadowColor,
+          ),
+        ]
+      ),
+      child: Center(
+        child: Padding(
+        padding: EdgeInsets.all(8.0),
+        child: SingleChildScrollView(
+          child: Column(
+            children: <Widget>[
+              Greeter(theme, full: true),
+              loadLandmarksOverview(),
+            ],
+          ),
+        ),
+      ),
+    ),
+    );
+  }
+
+}

frontend/lib/pages/profile.dart

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+import 'package:fast_network_navigation/structs/preferences.dart';
+import 'package:flutter/material.dart';
+
+
+
+class ProfilePage extends StatefulWidget {
+  @override
+  _ProfilePageState createState() => _ProfilePageState();
+}
+
+class _ProfilePageState extends State<ProfilePage> {
+  @override
+  Widget build(BuildContext context) {
+    return ListView(
+      children: [
+        // First a round, centered image
+        Center(
+          child: CircleAvatar(
+            radius: 100,
+            child: Icon(Icons.person, size: 100),
+          )
+        ),
+        Center(
+          child: Text('Curious traveler', style: TextStyle(fontSize: 24))
+        ),
+
+        Padding(
+          padding: EdgeInsets.all(10),
+        ),
+
+        Text('Please rate your preferences for the following activities:'),
+
+        // Now the sliders
+        ImportanceSliders()
+      ]
+    );
+  }
+}
+
+
+
+class ImportanceSliders extends StatefulWidget {
+
+  @override
+  State<ImportanceSliders> createState() => _ImportanceSlidersState();
+}
+
+
+class _ImportanceSlidersState extends State<ImportanceSliders> {
+
+  UserPreferences _prefs = UserPreferences();
+
+  @override
+  void initState() {
+    super.initState();
+    _prefs.load();
+  }
+
+  List<Card> _createSliders() {
+    List<Card> sliders = [];
+    for (SinglePreference pref in _prefs.preferences) {
+      sliders.add(Card(
+        child: ListTile(
+          leading: pref.icon,
+          title: Text(pref.name),
+          subtitle: Slider(
+            value: pref.value.toDouble(),
+            min: 0,
+            max: 10,
+            divisions: 10,
+            label: pref.value.toString(),
+            onChanged: (double newValue) {
+              setState(() {
+                pref.value = newValue.toInt();
+                _prefs.save();
+              });
+            },
+          )
+        ),
+        margin: EdgeInsets.only(left: 10, right: 10, top: 10, bottom: 0),
+        shadowColor: Colors.grey,
+      ));
+    }
+    return sliders;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(children: _createSliders());
+  }
+}