tela de verificação de turma, possibilidade de alunos entrarem em turmas

This commit is contained in:
2026-05-12 18:59:22 +01:00
parent b7988eb608
commit ad400a9c37
8 changed files with 905 additions and 51 deletions

View File

@@ -0,0 +1,196 @@
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:flutter/material.dart';
import 'package:intl/intl.dart';
/// Página para visualizar os alunos de uma turma específica
class ClassStudentsPage extends StatelessWidget {
final String classId;
final String className;
const ClassStudentsPage({
super.key,
required this.classId,
required this.className,
});
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: const Color(0xFFF8F9FA),
appBar: AppBar(
backgroundColor: const Color(0xFF82C9BD),
elevation: 0,
leading: IconButton(
icon: const Icon(Icons.arrow_back, color: Colors.white),
onPressed: () => Navigator.of(context).pop(),
),
title: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
className,
style: const TextStyle(
color: Colors.white,
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
const Text(
'Alunos Matriculados',
style: TextStyle(
color: Colors.white70,
fontSize: 13,
fontWeight: FontWeight.w300,
),
),
],
),
),
body: StreamBuilder<QuerySnapshot>(
stream: FirebaseFirestore.instance
.collection('enrollments')
.where('classId', isEqualTo: classId)
.orderBy('joinedAt', descending: true)
.snapshots(),
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return const Center(
child: CircularProgressIndicator(
color: Color(0xFF82C9BD),
),
);
}
if (snapshot.hasError) {
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
Icons.error_outline,
size: 48,
color: Colors.grey[400],
),
const SizedBox(height: 16),
Text(
'Erro ao carregar alunos',
style: TextStyle(
color: Colors.grey[600],
fontSize: 16,
),
),
],
),
);
}
final enrollments = snapshot.data?.docs ?? [];
if (enrollments.isEmpty) {
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
Icons.people_outline,
size: 64,
color: Colors.grey[300],
),
const SizedBox(height: 24),
Text(
'Nenhum aluno entrou nesta turma ainda.',
style: TextStyle(
color: Colors.grey[600],
fontSize: 16,
),
textAlign: TextAlign.center,
),
const SizedBox(height: 8),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 32.0),
child: Text(
'Partilha o código da turma para os alunos se juntarem.',
style: TextStyle(
color: Colors.grey[500],
fontSize: 13,
),
textAlign: TextAlign.center,
),
),
],
),
);
}
return ListView.builder(
padding: const EdgeInsets.all(16.0),
itemCount: enrollments.length,
itemBuilder: (context, index) {
final enrollment = enrollments[index].data() as Map<String, dynamic>;
final studentName = enrollment['studentName'] as String? ?? 'Aluno sem nome';
final joinedAt = enrollment['joinedAt'] as Timestamp?;
return Container(
margin: const EdgeInsets.only(bottom: 12.0),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(16.0),
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.05),
blurRadius: 10,
offset: const Offset(0, 4),
),
],
),
child: ListTile(
contentPadding: const EdgeInsets.all(16.0),
leading: Container(
width: 48,
height: 48,
decoration: BoxDecoration(
color: const Color(0xFF82C9BD).withOpacity(0.1),
borderRadius: BorderRadius.circular(12.0),
),
child: const Icon(
Icons.person,
color: Color(0xFF82C9BD),
size: 24,
),
),
title: Text(
studentName,
style: const TextStyle(
color: Color(0xFF2D3748),
fontSize: 16,
fontWeight: FontWeight.w600,
),
),
subtitle: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const SizedBox(height: 4),
Text(
joinedAt != null
? 'Entrou em ${_formatDate(joinedAt.toDate())}'
: 'Data desconhecida',
style: TextStyle(
color: Colors.grey[600],
fontSize: 13,
),
),
],
),
),
);
},
);
},
),
);
}
String _formatDate(DateTime date) {
return DateFormat('dd/MM/yyyy').format(date);
}
}