Mixing
Flutter search delegate doesn't work when navigate back from a route
4
I'm using Flutter SearchDelegate in my app and here's the code:
class NameSearch extends SearchDelegate<String> {
@override
List<Widget> buildActions(BuildContext context) {
return [
IconButton(
icon: Icon(Icons.clear),
onPressed: () {
query = "";
},
)
];
}
@override
Widget buildLeading(BuildContext context) {
return IconButton(
icon: AnimatedIcon(
icon: AnimatedIcons.menu_arrow, progress: transitionAnimation),
onPressed: () {
close(context, null);
},
);
}
@override
Widget buildResults(BuildContext context) {
return null;
}
@override
Widget buildSuggestions(BuildContext context) {
suggestionList = query.isEmpty ? : List.generate(nameList.length,
(i) => nameList[i]).where((p) => p.name.startsWith(query)).toList();
return ListView.builder(
itemBuilder: (context, index) => ListTile(
onTap: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => DetailScreen(
detail: suggestionList[index],
)));
},
leading: Icon(Icons.book),
title: RichText(
text: TextSpan(
text: suggestionList[index].name.substring(0, query.length),
style: TextStyle(
color: Colors.black, fontWeight: FontWeight.bold),
children: [
TextSpan(
text: suggestionList[index].name.substring(query.length),
style: TextStyle(color: Colors.grey))
]),
),
),
itemCount: suggestionList.length,
);
}
}
When I clicked on an item in a suggestion list, It gets me to the new detail screen and works properly. But when I want to back to the search screen, the text input become like that:
And I can't insert any text anymore, till restart the app or go to another page and after that go back to search page again!
And here is my DetailScreen code:
class DetailScreen extends StatelessWidget {
final BookDetail detail;
DetailScreen({Key key, @required this.detail}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(detail.name),
),
body: Padding(
padding: EdgeInsets.all(16.0),
child: Text(detail.description),
),
);
}
}
dart
flutter flutter-navigation edited Jan 1 at 16:28
Vinicius Pinto
6,38533556
asked Dec 31 '18 at 20:23
artickartick
255
add a comment |
4
I'm using Flutter SearchDelegate in my app and here's the code:
class NameSearch extends SearchDelegate<String> {
@override
List<Widget> buildActions(BuildContext context) {
return [
IconButton(
icon: Icon(Icons.clear),
onPressed: () {
query = "";
},
)
];
}
@override
Widget buildLeading(BuildContext context) {
return IconButton(
icon: AnimatedIcon(
icon: AnimatedIcons.menu_arrow, progress: transitionAnimation),
onPressed: () {
close(context, null);
},
);
}
@override
Widget buildResults(BuildContext context) {
return null;
}
@override
Widget buildSuggestions(BuildContext context) {
suggestionList = query.isEmpty ? : List.generate(nameList.length,
(i) => nameList[i]).where((p) => p.name.startsWith(query)).toList();
return ListView.builder(
itemBuilder: (context, index) => ListTile(
onTap: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => DetailScreen(
detail: suggestionList[index],
)));
},
leading: Icon(Icons.book),
title: RichText(
text: TextSpan(
text: suggestionList[index].name.substring(0, query.length),
style: TextStyle(
color: Colors.black, fontWeight: FontWeight.bold),
children: [
TextSpan(
text: suggestionList[index].name.substring(query.length),
style: TextStyle(color: Colors.grey))
]),
),
),
itemCount: suggestionList.length,
);
}
}
When I clicked on an item in a suggestion list, It gets me to the new detail screen and works properly. But when I want to back to the search screen, the text input become like that:
And I can't insert any text anymore, till restart the app or go to another page and after that go back to search page again!
And here is my DetailScreen code:
class DetailScreen extends StatelessWidget {
final BookDetail detail;
DetailScreen({Key key, @required this.detail}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(detail.name),
),
body: Padding(
padding: EdgeInsets.all(16.0),
child: Text(detail.description),
),
);
}
}
dart
flutter flutter-navigation edited Jan 1 at 16:28
Vinicius Pinto
6,38533556
asked Dec 31 '18 at 20:23
artickartick
255
add a comment |
4
4
4
1
I'm using Flutter SearchDelegate in my app and here's the code:
class NameSearch extends SearchDelegate<String> {
@override
List<Widget> buildActions(BuildContext context) {
return [
IconButton(
icon: Icon(Icons.clear),
onPressed: () {
query = "";
},
)
];
}
@override
Widget buildLeading(BuildContext context) {
return IconButton(
icon: AnimatedIcon(
icon: AnimatedIcons.menu_arrow, progress: transitionAnimation),
onPressed: () {
close(context, null);
},
);
}
@override
Widget buildResults(BuildContext context) {
return null;
}
@override
Widget buildSuggestions(BuildContext context) {
suggestionList = query.isEmpty ? : List.generate(nameList.length,
(i) => nameList[i]).where((p) => p.name.startsWith(query)).toList();
return ListView.builder(
itemBuilder: (context, index) => ListTile(
onTap: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => DetailScreen(
detail: suggestionList[index],
)));
},
leading: Icon(Icons.book),
title: RichText(
text: TextSpan(
text: suggestionList[index].name.substring(0, query.length),
style: TextStyle(
color: Colors.black, fontWeight: FontWeight.bold),
children: [
TextSpan(
text: suggestionList[index].name.substring(query.length),
style: TextStyle(color: Colors.grey))
]),
),
),
itemCount: suggestionList.length,
);
}
}
When I clicked on an item in a suggestion list, It gets me to the new detail screen and works properly. But when I want to back to the search screen, the text input become like that:
And I can't insert any text anymore, till restart the app or go to another page and after that go back to search page again!
And here is my DetailScreen code:
class DetailScreen extends StatelessWidget {
final BookDetail detail;
DetailScreen({Key key, @required this.detail}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(detail.name),
),
body: Padding(
padding: EdgeInsets.all(16.0),
child: Text(detail.description),
),
);
}
}
dart
flutter flutter-navigation edited Jan 1 at 16:28
Vinicius Pinto
6,38533556
asked Dec 31 '18 at 20:23
artickartick
255
I'm using Flutter SearchDelegate in my app and here's the code:
class NameSearch extends SearchDelegate<String> {
@override
List<Widget> buildActions(BuildContext context) {
return [
IconButton(
icon: Icon(Icons.clear),
onPressed: () {
query = "";
},
)
];
}
@override
Widget buildLeading(BuildContext context) {
return IconButton(
icon: AnimatedIcon(
icon: AnimatedIcons.menu_arrow, progress: transitionAnimation),
onPressed: () {
close(context, null);
},
);
}
@override
Widget buildResults(BuildContext context) {
return null;
}
@override
Widget buildSuggestions(BuildContext context) {
suggestionList = query.isEmpty ? : List.generate(nameList.length,
(i) => nameList[i]).where((p) => p.name.startsWith(query)).toList();
return ListView.builder(
itemBuilder: (context, index) => ListTile(
onTap: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => DetailScreen(
detail: suggestionList[index],
)));
},
leading: Icon(Icons.book),
title: RichText(
text: TextSpan(
text: suggestionList[index].name.substring(0, query.length),
style: TextStyle(
color: Colors.black, fontWeight: FontWeight.bold),
children: [
TextSpan(
text: suggestionList[index].name.substring(query.length),
style: TextStyle(color: Colors.grey))
]),
),
),
itemCount: suggestionList.length,
);
}
}
When I clicked on an item in a suggestion list, It gets me to the new detail screen and works properly. But when I want to back to the search screen, the text input become like that:
And I can't insert any text anymore, till restart the app or go to another page and after that go back to search page again!
And here is my DetailScreen code:
class DetailScreen extends StatelessWidget {
final BookDetail detail;
DetailScreen({Key key, @required this.detail}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(detail.name),
),
body: Padding(
padding: EdgeInsets.all(16.0),
child: Text(detail.description),
),
);
}
}
dart
flutter flutter-navigation dart
flutter flutter-navigation edited Jan 1 at 16:28
Vinicius Pinto
6,38533556
asked Dec 31 '18 at 20:23
artickartick
255
edited Jan 1 at 16:28
Vinicius Pinto
6,38533556
asked Dec 31 '18 at 20:23
artickartick
255
edited Jan 1 at 16:28
Vinicius Pinto
6,38533556
edited Jan 1 at 16:28
Vinicius Pinto
6,38533556
edited Jan 1 at 16:28
Vinicius Pinto
6,38533556
6,38533556
asked Dec 31 '18 at 20:23
artickartick
255
asked Dec 31 '18 at 20:23
artickartick
255
asked Dec 31 '18 at 20:23
artickartick
255
255
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53991158%2fflutter-search-delegate-doesnt-work-when-navigate-back-from-a-route%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
draft saved
draft discarded
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53991158%2fflutter-search-delegate-doesnt-work-when-navigate-back-from-a-route%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
