Files
prosappco/lib/screens/lists/dropwdon.dart
T
2024-05-24 17:53:12 -05:00

138 lines
3.9 KiB
Dart

import 'package:flutter/material.dart';
import 'package:injector/injector.dart';
import 'package:profession_repository/profession_repository.dart';
import 'package:shimmer/shimmer.dart';
class DropdownListScreen extends StatefulWidget {
const DropdownListScreen({super.key});
@override
State<DropdownListScreen> createState() => _DropdownListScreenState();
}
class _DropdownListScreenState extends State<DropdownListScreen> {
final professionRepository = Injector.appInstance.get<ProfessionRepository>();
List<String>? _professions;
List<String>? _filteredProfessions;
String? _selectedProfession;
bool _isLoading = true;
@override
void initState() {
super.initState();
_loadProfessions();
}
void _loadProfessions() {
professionRepository.getProfessions().then((Professions element) {
setState(() {
_professions = element.professions;
_filteredProfessions = _professions;
_isLoading = false;
});
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Profesiones'),
),
body: Column(
children: [
_isLoading
? _buildShimmerEffect()
: Expanded(
child: _filteredProfessions != null &&
_filteredProfessions!.isNotEmpty
? DropdownButton<String>(
isExpanded: true,
value: _selectedProfession,
hint: const Text('Seleccione una profesión'),
items: _filteredProfessions!.map((String profession) {
return DropdownMenuItem<String>(
value: profession,
child: Text(profession),
);
}).toList(),
onChanged: (String? newValue) {
setState(() {
_selectedProfession = newValue;
});
},
)
: const Center(
child: Text('No se encontraron coincidencias'),
),
)
],
),
);
}
Widget _buildShimmerEffect() {
return Expanded(
child: Shimmer.fromColors(
baseColor: Colors.grey[300]!,
highlightColor: Colors.grey[100]!,
child: ListView.builder(
itemCount: 8,
itemBuilder: (_, __) => const ListTileShimmer(),
),
),
);
}
}
class ListTileShimmer extends StatelessWidget {
const ListTileShimmer({super.key});
@override
Widget build(BuildContext context) {
return Container(
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(color: Colors.grey.withOpacity(0.4)),
),
),
child: ListTile(
title: Row(
children: [
Container(
width: MediaQuery.of(context).size.width * 0.8,
height: 20.0,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(8),
),
),
],
),
subtitle: Row(
children: [
Container(
width: MediaQuery.of(context).size.width * 0.3,
height: 15.0,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(8),
),
),
const SizedBox(width: 5),
Container(
width: MediaQuery.of(context).size.width * 0.3,
height: 15.0,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(8),
),
)
],
),
),
);
}
}