Search feature

[raffaelecolleo]

Hi guys,
I am developing an app and I would like to integrate it with a search function.
Basically I am going to add to my appbar a new class that will extend searchDelegate and build all the necessary things for a "modal" search.

`
class ShowSearch extends SearchDelegate {

@OverRide
List buildActions(BuildContext context) {
// TODO: implement buildActions
return [IconButton(
icon: Icon(Icons.clear),
onPressed: (){
query = "";
}
)];
}

@OverRide
Widget buildLeading(BuildContext context) {
// TODO: implement buildLeading
return IconButton(icon: Icon(Icons.arrow_back), onPressed: (){
close(context, null);
});
}

@OverRide
Widget buildSuggestions(BuildContext context) {
// TODO: implement buildSuggestions
}

@OverRide
Widget buildResults(BuildContext context) {
// TODO: implement buildResults
int _totalCounter = 100;

return PagewiseGridView(
    pageSize: 10,
    totalCount: _totalCounter,
    crossAxisCount: 2,
    mainAxisSpacing: 10.0,
    crossAxisSpacing: 5.0,
    padding: EdgeInsets.all(5.0),
    itemBuilder: _itemBuilder,
    pageFuture: BackendService().getSearchItems,
);

}
`

and this is getSearchItems

`
static Future getSearchModels(query, searchIndex) async {
searchIndex = await searchIndex+1;
var query = "flutter";

var mySearchRes = await http.get(Uri.encodeFull("https://www.mydomain.com/wp-json/myapp/v1/search/$query/$searchIndex"), headers: {"Accept": "application/json"});
var mySearchResBody = json.decode(mySearchRes.body);

List searchList = [];

for (var modelSearches in mySearchResBody["posts"]){
  searchList.add(modelSearches);
}
return searchList;

}
`

My problem is that it shows a red screen saying
type 'Future<List<dynamic>>' is not a subtype of type '(int) => Future<List<dynamic>>'
when I change the pageFuture to
pageFuture: BackendService().getSearchItems("flutter", 1),
where flutter is what I am searching and 1 is the page number that is retrieving 10 results at the time.

How can I fix this...

[raffaelecolleo]

Solved.
Just Changed
pageFuture: BackendService().getSearchItems
to
pageFuture: (pageIndex){ return myFuncion(); }

Thanks anyway guys!!!