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No commits in common. "ab0b551a6419924512b9c9618d8f0ba4ecbd7c66" and "66e1f3a05bbb4fd526d1c983f6543d6d4a9e1f7e" have entirely different histories.

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@ -26,128 +26,33 @@ class MyApp extends StatelessWidget {
} }
class MyAppState extends ChangeNotifier { class MyAppState extends ChangeNotifier {
var current = WordPair.random(); var current = WordPair.random();// ...
// Add this.
void getNext() { void getNext() {
current = WordPair.random(); current = WordPair.random();
notifyListeners(); notifyListeners();
} }
var favorites = <WordPair>[];
void toggleFavorite() {
if (favorites.contains(current)) {
favorites.remove(current);
} else {
favorites.add(current);
}
notifyListeners();
print("Favorites are: ${favorites.toString()}");
}
} }
class MyHomePage extends StatefulWidget { class MyHomePage extends StatelessWidget {
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
var selectedIndex = 0;
@override
Widget build(BuildContext context) {
Widget page;
switch (selectedIndex) {
case 0:
page = GeneratorPage();
break;
case 1:
page = Placeholder();
break;
default:
throw UnimplementedError('no widget for $selectedIndex');
}
return LayoutBuilder(
builder: (context, constraints) {
return Scaffold(
body: Row(
children: [
SafeArea(
child: NavigationRail(
extended: constraints.maxWidth >= 600,
destinations: [
NavigationRailDestination(
icon: Icon(Icons.home),
label: Text('Home'),
),
NavigationRailDestination(
icon: Icon(Icons.favorite),
label: Text('Favorites'),
),
],
selectedIndex: selectedIndex,
onDestinationSelected: (value) {
setState(() {
selectedIndex = value;
});
}
),
),
Expanded(
child: Container(
color: Theme.of(context).colorScheme.primaryContainer,
child: page,
),
),
],
),
);
}
);
}
}
class GeneratorPage extends StatelessWidget {
@override @override
Widget build(BuildContext context) { Widget build(BuildContext context) {
var appState = context.watch<MyAppState>(); var appState = context.watch<MyAppState>();
var pair = appState.current; var pair = appState.current;
IconData icon; return Scaffold(
if (appState.favorites.contains(pair)) { body: Column(
icon = Icons.favorite;
} else {
icon = Icons.favorite_border;
}
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [ children: [
Text('A random wordpair:'),
BigCard(pair: pair), BigCard(pair: pair),
SizedBox(height: 10),
Row(
mainAxisSize: MainAxisSize.min,
children: [
ElevatedButton.icon(
onPressed: () {
appState.toggleFavorite();
},
icon: Icon(icon),
label: Text('Like'),
),
SizedBox(width: 10),
ElevatedButton( ElevatedButton(
onPressed: () { onPressed: () {
appState.getNext(); appState.getNext();
}, },
child: Text('Next'), child: Text('Next'),
), ),
],
),
], ],
), ),
); );
@ -169,15 +74,12 @@ class BigCard extends StatelessWidget {
color: theme.colorScheme.onPrimary, color: theme.colorScheme.onPrimary,
); );
return Card( return Card(
color: theme.colorScheme.primary, color: theme.colorScheme.primary,
child: Padding( child: Padding(
padding: const EdgeInsets.all(15.0), padding: const EdgeInsets.all(15.0),
child: Text( child: Text(pair.asLowerCase, style: style),
pair.asLowerCase,
style: style,
semanticsLabel: "${pair.first} ${pair.second}",
),
), ),
); );
} }