Add title image
Move GMS API KEY to .env file use better sign icon for pins
This commit is contained in:
206
lib/main.dart
206
lib/main.dart
@@ -1,122 +1,144 @@
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import 'package:flutter/material.dart';
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import 'package:flutter_dotenv/flutter_dotenv.dart';
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import 'package:google_maps_flutter/google_maps_flutter.dart';
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import 'package:geolocator/geolocator.dart';
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import 'package:permission_handler/permission_handler.dart';
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void main() {
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runApp(const MyApp());
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Future<void> main() async {
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await dotenv.load(fileName: ".env");
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runApp(SignLocatorApp());
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}
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class MyApp extends StatelessWidget {
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const MyApp({super.key});
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class SignLocatorApp extends StatelessWidget {
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const SignLocatorApp({super.key});
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// This widget is the root of your application.
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: 'Flutter Demo',
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theme: ThemeData(
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// This is the theme of your application.
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//
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// TRY THIS: Try running your application with "flutter run". You'll see
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// the application has a purple toolbar. Then, without quitting the app,
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// try changing the seedColor in the colorScheme below to Colors.green
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// and then invoke "hot reload" (save your changes or press the "hot
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// reload" button in a Flutter-supported IDE, or press "r" if you used
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// the command line to start the app).
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//
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// Notice that the counter didn't reset back to zero; the application
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// state is not lost during the reload. To reset the state, use hot
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// restart instead.
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//
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// This works for code too, not just values: Most code changes can be
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// tested with just a hot reload.
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colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
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),
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home: const MyHomePage(title: 'Flutter Demo Home Page'),
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title: 'Sign Locator',
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theme: ThemeData(primarySwatch: Colors.blue),
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home: SignMapScreen(),
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);
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}
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}
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class MyHomePage extends StatefulWidget {
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const MyHomePage({super.key, required this.title});
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// This widget is the home page of your application. It is stateful, meaning
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// that it has a State object (defined below) that contains fields that affect
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// how it looks.
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// This class is the configuration for the state. It holds the values (in this
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// case the title) provided by the parent (in this case the App widget) and
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// used by the build method of the State. Fields in a Widget subclass are
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// always marked "final".
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final String title;
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class SignMapScreen extends StatefulWidget {
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const SignMapScreen({super.key});
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@override
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State<MyHomePage> createState() => _MyHomePageState();
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SignMapScreenState createState() => SignMapScreenState();
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}
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class _MyHomePageState extends State<MyHomePage> {
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int _counter = 0;
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class SignMapScreenState extends State<SignMapScreen> {
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GoogleMapController? mapController;
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Set<Marker> markers = {};
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LatLng _initialPosition = const LatLng(37.7749, -122.4194); // Default: SF
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BitmapDescriptor customIcon = BitmapDescriptor.defaultMarker;
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void _incrementCounter() {
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void customMarker() {
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BitmapDescriptor.asset(
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ImageConfiguration(),
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'assets/icons/sign_marker.png',
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).then((icon) {
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setState(() {
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customIcon = icon;
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});
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});
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}
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@override
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void initState() {
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super.initState();
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_requestPermissions();
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customMarker();
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}
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Future<void> _requestPermissions() async {
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await Permission.locationWhenInUse.request();
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_goToUserLocation();
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}
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Future<void> _goToUserLocation() async {
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bool serviceEnabled = await Geolocator.isLocationServiceEnabled();
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if (!serviceEnabled) return;
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LocationPermission permission = await Geolocator.checkPermission();
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if (permission == LocationPermission.denied ||
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permission == LocationPermission.deniedForever) {
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permission = await Geolocator.requestPermission();
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}
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Position position = await Geolocator.getCurrentPosition();
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_initialPosition = LatLng(position.latitude, position.longitude);
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mapController?.animateCamera(CameraUpdate.newLatLng(_initialPosition));
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}
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void _addMarker() async {
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Position position = await Geolocator.getCurrentPosition();
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final markerId = MarkerId(DateTime.now().toString());
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final newMarker = Marker(
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markerId: markerId,
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position: LatLng(position.latitude, position.longitude),
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infoWindow: InfoWindow(title: 'Sign Location'),
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icon: customIcon,
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);
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setState(() {
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// This call to setState tells the Flutter framework that something has
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// changed in this State, which causes it to rerun the build method below
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// so that the display can reflect the updated values. If we changed
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// _counter without calling setState(), then the build method would not be
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// called again, and so nothing would appear to happen.
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_counter++;
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markers.add(newMarker);
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});
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}
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void _clearMarkers() {
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setState(() {
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markers.clear();
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});
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}
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@override
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Widget build(BuildContext context) {
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// This method is rerun every time setState is called, for instance as done
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// by the _incrementCounter method above.
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//
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// The Flutter framework has been optimized to make rerunning build methods
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// fast, so that you can just rebuild anything that needs updating rather
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// than having to individually change instances of widgets.
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return Scaffold(
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appBar: AppBar(
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// TRY THIS: Try changing the color here to a specific color (to
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// Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
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// change color while the other colors stay the same.
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backgroundColor: Theme.of(context).colorScheme.inversePrimary,
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// Here we take the value from the MyHomePage object that was created by
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// the App.build method, and use it to set our appbar title.
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title: Text(widget.title),
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),
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body: Center(
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// Center is a layout widget. It takes a single child and positions it
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// in the middle of the parent.
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child: Column(
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// Column is also a layout widget. It takes a list of children and
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// arranges them vertically. By default, it sizes itself to fit its
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// children horizontally, and tries to be as tall as its parent.
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//
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// Column has various properties to control how it sizes itself and
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// how it positions its children. Here we use mainAxisAlignment to
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// center the children vertically; the main axis here is the vertical
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// axis because Columns are vertical (the cross axis would be
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// horizontal).
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//
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// TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
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// action in the IDE, or press "p" in the console), to see the
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// wireframe for each widget.
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mainAxisAlignment: MainAxisAlignment.center,
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children: <Widget>[
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const Text('You have pushed the button this many times:'),
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Text(
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'$_counter',
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style: Theme.of(context).textTheme.headlineMedium,
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),
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],
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title: SizedBox(
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width: MediaQuery.of(context).size.width,
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child: Image.asset(
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'assets/app_title.png', // Replace with your image path
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fit: BoxFit.contain, // Adjust the height as needed
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),
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),
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),
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floatingActionButton: FloatingActionButton(
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onPressed: _incrementCounter,
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tooltip: 'Increment',
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child: const Icon(Icons.add),
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), // This trailing comma makes auto-formatting nicer for build methods.
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body: GoogleMap(
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zoomGesturesEnabled: true,
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scrollGesturesEnabled: true,
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tiltGesturesEnabled: true,
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rotateGesturesEnabled: true,
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mapType: MapType.normal,
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onMapCreated: (controller) {
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mapController = controller;
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},
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initialCameraPosition: CameraPosition(
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target: _initialPosition,
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zoom: 14,
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),
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myLocationEnabled: true,
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markers: markers,
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),
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floatingActionButton: Column(
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mainAxisAlignment: MainAxisAlignment.end,
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children: [
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FloatingActionButton(
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onPressed: _addMarker,
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tooltip: 'Drop Pin',
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child: Icon(Icons.add_location),
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),
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SizedBox(height: 12),
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FloatingActionButton(
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onPressed: _clearMarkers,
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backgroundColor: Colors.red,
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tooltip: 'Clear Pins',
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child: Icon(Icons.clear),
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),
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],
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),
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);
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}
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}
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