Search bar with ListView possible in Flutter? - list

Question

I want to implement a searchbar in my flutter application. I have to go through a listview out of ListTiles. Here I want to check if the title of the listtile contains the letters in the search field. Is this possible with a List?
It does not have to be with the title. It could be something else with what I can identify the Tile. But please, not the index, the user would not know it.
Is a List the right widget or do I have to use something else to implement a search Engine in my Application

Answer 1

Rather than using a 3rd party package, you can use native showSearch() function :
showSearch(context: context, delegate: ListSearchDelegate());
And then a class extending SearchDelegate:
class ListSearchDelegate extends SearchDelegate{
ListSearchDelegate({Key key,}): super() ;
List<String> listItems = <String>['One', 'Two', 'Three', 'Four', 'Five'] ;
#override
List<Widget> buildActions(BuildContext context) {
return [
IconButton(
icon: Icon(Icons.clear),
onPressed: () {
query = '';
},
),
];
}
#override
Widget buildLeading(BuildContext context) {
return IconButton(
icon: Icon(Icons.arrow_back),
onPressed: () {
close(context, null);
},
);
}
#override
Widget buildResults(BuildContext context) {
List<String> subList ;
subList = query != '' ? listItems.where((item) => item.contains(query)).toList() :
listItems ;
return ListView.builder(
itemCount: subList.length,
itemBuilder: (context, index) {
return ListTile(
title: Text(subList[index]),
);
}
);
}
#override
Widget buildSuggestions(BuildContext context) {
return Container();
}
}

Answer 2

Try https://pub.dev/packages/flutter_search_panel
List<SearchItem<int>> data = [
SearchItem(0, 'This'),
SearchItem(1, 'is'),
SearchItem(2, 'a'),
SearchItem(3, 'test'),
SearchItem(4, '.'),
];
FlutterSearchPanel<int>(
padding: EdgeInsets.all(10.0),
selected: 3,
title: 'Demo Search Page',
data: data,
icon: new Icon(Icons.check_circle, color: Colors.white),
color: Colors.blue,
textStyle: new TextStyle(color: Colors.white, fontWeight: FontWeight.bold, fontSize: 20.0, decorationStyle: TextDecorationStyle.dotted),
onChanged: (int value) {
print(value);
},
),