selectIlce method

Future<String?> selectIlce(BuildContext context, { required String il, })

Implementation

Future<String?> selectIlce(BuildContext context,{required String il}) async {
  if(City.list().where((element) => element.city==il).length==0){
    throw Exception('Gönderilen il bulunamadı');
  }

  City city = City.list().where((element) => element.city==il).first;
  String? ilce;
  await SelectDialog.showModal<String?>(
    context,
    label: "İlçe Ara (${city.city})",
    items: city.districts,
    searchBoxDecoration: const InputDecoration(
      border: OutlineInputBorder(),
      labelText: "İlçe Ara",
      hintText: "İlçe Adı",
      prefixIcon: Icon(Icons.search),
    ),
    loadingBuilder: (e) {
      return Center(
        child: CircularProgressIndicator(),
      );
    },
    emptyBuilder: (e) {
      return Center(
        child: Text("İlçe Bulunamadı"),
      );
    },
    errorBuilder: (e, t) {
      return Center(
        child: Text("Hata"),
      );
    },
    itemBuilder: (context, item, isSelected) {
      return SizedBox(
        child: ListTile(
          title: Text('$item '),
          trailing: isSelected ? Icon(Icons.check) : null,
        ),
      );
    },
    onChange: (String? selected) {
      ilce = selected;
    }
  );

  return ilce;
}