Provider works in child but not in SearchDelegate - flutter

Question

This is the error:
Error: Could not find the correct Provider<List<ListTile>> above this Widget
I have an app that displays items from a FutureProvider. I use the provider twice, one at the end to generate a ListView in the same page using ListaProductos(), and one at the AppBar to generate the same ListView on a SearchDelegate.
This is the main page:
#override
Widget build(BuildContext context) {
if (user != null) {
return FutureProvider<List<ListTile>>.value(
value:
ServicioBaseDatos(usuarioUID: user.uid).listaProductos,
child: new Scaffold(
appBar: AppBar(
title: Text(
"Stock",
),
actions: <Widget>[
IconButton(
icon: Icon(Icons.search),
onPressed: () {
var listaProductos = Provider.of<List<ListTile>>(context);
showSearch(
context: context,
delegate: SearchProducto(listaProductos),
);
},
),
],
),
floatingActionButton: FloatingActionButton(
onPressed: () => Navigator.of(context).push(new MaterialPageRoute(
builder: (BuildContext context) => new CrearProductoPage())),
child: Icon(
Icons.add,
),
),
drawer: MenuComponent(user.email == null ? '' : user.email),
body: Container(
decoration: BoxDecoration(
gradient: LinearGradient(
colors: [Color(0xFFAE885E), Color(0xFF557A95)])),
child: ListaProductos()),
),
);
} else {
return Text('Esperando identificador de usuario de la base de datos');
}
}
This is the ListaProductos() widget (works fine):
class ListaProductos extends StatefulWidget {
#override
_ListaProductosState createState() => _ListaProductosState();
}
class _ListaProductosState extends State<ListaProductos> {
#override
Widget build(BuildContext context) {
final productos = Provider.of<List<ListTile>>(context);
if (productos != null){
return ListView.builder(
itemCount: productos.length,
itemBuilder: (context, index) {
return productos[index];
},
);
}
else {return Text('Esperando respuesta de base de datos');}
}
}
This is the SearchDelegate implementation (The error appears when I click at the search icon that opens this page):
class SearchProducto extends SearchDelegate<ListTile> {
final List<ListTile> listaProductos;
SearchProducto(this.listaProductos);
#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) {
return Container();
}
#override
Widget buildSuggestions(BuildContext context) {
if (listaProductos != null){
return ListView.builder(
itemCount: listaProductos.length,
itemBuilder: (context, index) {
return listaProductos[index];
},
);
}
else {return Text('Esperando respuesta de BD');}
}
}
I'm halfway a Boring show but they don't use Provider. Ideas? Thanks for your help!
Edit: This is the value: of the FutureProvider:
Future<List<ListTile>> get listaProductos async {
List<ListTile> listaProd = [];
final documentos = await colecUsuario
.document(usuarioUID)
.collection('ListaItems')
.getDocuments();
if (documentos != null) {
for (var doc in documentos.documents) {
for (var k in doc.data.keys) {
listaProd.add(
ListTile(
title: Text(k),
trailing: Text(doc.data[k].toString()),
)
);
}
}
}
return listaProd;
}

Answer 1

intentaste obtener la información dentro del Search en vez de pasarlo ?
class SearchProducto extends SearchDelegate<ListTile> {
#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) {
return Container();
}
#override
Widget buildSuggestions(BuildContext context) {
final listaProductos = Provider.of<List<ListTile>>(context);
if (listaProductos != null){
return ListView.builder(
itemCount: listaProductos.length,
itemBuilder: (context, index) {
return listaProductos[index];
},
);
}
else {return Text('Esperando respuesta de BD');}
}
}