Passing parameters through custom widget by ontap function

// Automatic FlutterFlow imports
import '/backend/backend.dart';
import '/backend/schema/structs/index.dart';
import '/flutter_flow/flutter_flow_theme.dart';
import '/flutter_flow/flutter_flow_util.dart';
import '/custom_code/widgets/index.dart'; // Imports other custom widgets
import '/custom_code/actions/index.dart'; // Imports custom actions
import '/flutter_flow/custom_functions.dart'; // Imports custom functions
import 'package:flutter/material.dart';
// Begin custom widget code
// DO NOT REMOVE OR MODIFY THE CODE ABOVE!

import 'package:collection/collection.dart';

import 'package:flutter_map/flutter_map.dart';
import 'package:latlong2/latlong.dart' as ltlng;

class FlutterMapWidget extends StatefulWidget {
  const FlutterMapWidget({
    super.key,
    this.width,
    this.height,
    required this.centroMapa,
    this.coordenadas,
    required this.eventos,
  });

  final double? width;
  final double? height;
  final LatLng centroMapa;
  final List<LatLng>? coordenadas;
  final List<EventosRecord>? eventos;

  @override
  State<FlutterMapWidget> createState() => _FlutterMapWidgetState();
}

class DetalhesEvento extends StatelessWidget {
  final evento;

  DetalhesEvento({required this.evento});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Detalhes do Evento'),
      ),
      body: Center(
        child: Text('Detalhes do evento: $evento'),
      ),
    );
  }
}

class _FlutterMapWidgetState extends State<FlutterMapWidget> {
  List<Marker> _buildMarkers() {
    try {
      return widget.coordenadas!.asMap().entries.map((entry) {
        int index = entry.key;
        var location = entry.value;

        return Marker(
          width: 80.0,
          height: 80.0,
          point: ltlng.LatLng(location.latitude, location.longitude),
          child: GestureDetector(
            onTap: () async {
              List<EventosRecord> eventos = widget.eventos!;

              var evento = eventos.isNotEmpty ? eventos[index] : null;

              Navigator.push(
                context,
                MaterialPageRoute(
                  builder: (context) => DetalhesEvento(evento: evento),
                ),
              );          
            },
            child: Icon(Icons.location_on, size: 40.0, color: Colors.red),
          ),
        );
      }).toList();
    } catch (e) {
      print('Erro ao construir marcadores: $e');
      return [];
    }
  }

  @override
  Widget build(BuildContext context) {
    return FlutterMap(
      options: MapOptions(
        initialCenter: ltlng.LatLng(
            widget.centroMapa.latitude, widget.centroMapa.longitude),
        initialZoom: 9.2,
      ),
      children: [
        TileLayer(
          urlTemplate: 'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
          userAgentPackageName: 'com.example.app',
        ),
        MarkerLayer(
          markers: _buildMarkers(),
        ),
      ],
    );
  }
}