todos-contra-el-fuego-mobile/lib/fire_alert.dart

import 'package:community_material_icon/community_material_icon.dart';
import 'package:flutter/material.dart';
import 'package:share_plus/share_plus.dart';
import 'package:url_launcher/url_launcher.dart';

import 'custom_stepper.dart';
import 'generated/i18n.dart';
import 'main_drawer.dart';
import 'models/your_location.dart';
import 'places_autocomplete_utils.dart';

class FireAlert extends StatefulWidget {
  const FireAlert({super.key});

  static const String routeName = '/fireAlert';

  @override
  _FireAlertState createState() => _FireAlertState();
}

class _FireAlertState extends State<FireAlert> {
  final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();
  int _currentStep = 0;

  Widget buildCallButton() {
    return Align(
      alignment: const Alignment(0.0, -0.2),
      child: FloatingActionButton(
        heroTag: 'callAction',
        child: const Icon(Icons.call),
        onPressed: () async {
          final Uri url = Uri(scheme: 'tel', path: '112');
          if (await canLaunchUrl(url)) {
            await launchUrl(url);
          }
        },
      ),
    );
  }

  Widget buildNotifyNeighboursButton() {
    return Align(
      alignment: const Alignment(0.0, -0.2),
      child: FloatingActionButton(
        heroTag: 'neighAction',
        child: const Icon(CommunityMaterialIcons.bullhorn),
        onPressed: () {
          ScaffoldMessenger.of(context).showSnackBar(SnackBar(
            content: Text(S.of(context).inDevelopment),
          ));
        },
      ),
    );
  }

  Widget buildTweetButton() {
    final S strings = S.of(context);
    return Align(
      alignment: const Alignment(0.0, -0.2),
      child: FloatingActionButton(
        heroTag: 'tweetAction',
        child: const Icon(CommunityMaterialIcons.twitter),
        onPressed: () {
          openPlacesDialog(_scaffoldKey).then((YourLocation yourLocation) {
            final String where =
                yourLocation.description.replaceAll(' ', '').split(',')[0];
            Share.shareWithResult(
                strings.tweetAboutSelf(yourLocation.description, '#IF$where'));
          }).catchError((Object onError) {
            if (mounted) {
              ScaffoldMessenger.of(context).showSnackBar(
                  SnackBar(content: Text(strings.errorFirePlaceDialog)));
            }
          });
        },
      ),
    );
  }

  List<CustomStep> listWithoutNulls(List<CustomStep> children) =>
      children.whereType<CustomStep>().toList();

  @override
  Widget build(BuildContext context) {
    final List<CustomStep> fireSteps = listWithoutNulls(<CustomStep>[
      CustomStep(
          title: Text(S.of(context).callEmergencyServicesTitle),
          content: Column(children: <Widget>[
            Text(S.of(context).callEmergencyServicesDescription),
            const SizedBox(height: 20.0),
            buildCallButton()
          ])),
      CustomStep(
          title: Text(S.of(context).notifyNeighbours),
          // state: CustomStepState.disabled,
          content: Column(children: <Widget>[
            Text(S.of(context).notifyNeighboursDescription),
            const SizedBox(height: 20.0),
            buildNotifyNeighboursButton()
          ])),
      // TODOconditional: this only in Spain
      CustomStep(
          title: Text(S.of(context).tweetAboutAFireTitle),
          // subtitle: new Text(S.of(context).tweetAboutAFireDescription),
          content: Column(children: <Widget>[
            Text(S.of(context).tweetAboutAFireDescription),
            const SizedBox(height: 20.0),
            buildTweetButton()
          ])),
    ]);
    return Scaffold(
        key: _scaffoldKey,
        appBar: AppBar(title: Text(S.of(context).notifyAFire)),
        drawer: MainDrawer(context, FireAlert.routeName),
        body: CustomStepper(
            currentCustomStep: _currentStep,
            // type: StepperType.horizontal,
            onCustomStepTapped: (int num) => setState(() {
                  _currentStep = num;
                }),
            steps: fireSteps));
  }
}