Adding no-result display to search screen. (#57)

pull/60/head
Andrew Brogdon 6 years ago committed by GitHub
parent cf95d2c3a3
commit be35972637
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

@ -17,47 +17,58 @@ class SearchScreen extends StatefulWidget {
}
class _SearchScreenState extends State<SearchScreen> {
final _controller = TextEditingController();
final _focusNode = FocusNode();
String _terms = '';
final controller = TextEditingController();
final focusNode = FocusNode();
String terms = '';
@override
void initState() {
super.initState();
_controller.addListener(_onTextChanged);
controller.addListener(_onTextChanged);
}
@override
void dispose() {
_focusNode.dispose();
focusNode.dispose();
super.dispose();
}
void _onTextChanged() {
setState(() => _terms = _controller.text);
setState(() => terms = controller.text);
}
Widget _createSearchBox() {
return Padding(
padding: const EdgeInsets.all(8.0),
child: SearchBar(
controller: _controller,
focusNode: _focusNode,
controller: controller,
focusNode: focusNode,
),
);
}
List<Widget> _generateVeggieRows(List<Veggie> veggies) {
final cards = new List<Widget>();
for (Veggie veggie in veggies) {
cards.add(Padding(
padding: EdgeInsets.only(left: 16.0, right: 16.0, bottom: 24.0),
child: VeggieHeadline(veggie),
));
Widget _buildSearchResults(List<Veggie> veggies) {
if (veggies.isEmpty) {
return Center(
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 24.0),
child: Text(
'No veggies matching your search terms were found.',
style: Styles.headlineDescription,
),
),
);
}
return cards;
return ListView.builder(
itemCount: veggies.length,
itemBuilder: (context, i) {
return Padding(
padding: EdgeInsets.only(left: 16.0, right: 16.0, bottom: 24.0),
child: VeggieHeadline(veggies[i]),
);
},
);
}
@override
@ -75,9 +86,7 @@ class _SearchScreenState extends State<SearchScreen> {
children: [
_createSearchBox(),
Expanded(
child: ListView(
children: _generateVeggieRows(model.searchVeggies(_terms)),
),
child: _buildSearchResults(model.searchVeggies(terms)),
),
],
),

@ -29,9 +29,11 @@ class SearchBar extends StatelessWidget {
),
child: Row(
children: [
Icon(
CupertinoIcons.search,
color: Styles.searchIconColor,
ExcludeSemantics(
child: Icon(
CupertinoIcons.search,
color: Styles.searchIconColor,
),
),
Expanded(
child: CupertinoTextField(
@ -47,6 +49,7 @@ class SearchBar extends StatelessWidget {
},
child: Icon(
CupertinoIcons.clear_thick_circled,
semanticLabel: 'Clear search terms',
color: Styles.searchIconColor,
),
),

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