mapbox_widgets 0.0.1 mapbox_widgets: ^0.0.1 copied to clipboard
An animatable marker widgets for flutter_mapbox
import 'dart:math';
import 'package:flutter/material.dart';
import 'package:mapbox_gl/mapbox_gl.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
// This is the theme of your application.
//
// Try running your application with "flutter run". You'll see the
// application has a blue toolbar. Then, without quitting the app, try
// changing the primarySwatch below to Colors.green and then invoke
// "hot reload" (press "r" in the console where you ran "flutter run",
// or simply save your changes to "hot reload" in a Flutter IDE).
// Notice that the counter didn't reset back to zero; the application
// is not restarted.
primarySwatch: Colors.blue,
// This makes the visual density adapt to the platform that you run
// the app on. For desktop platforms, the controls will be smaller and
// closer together (more dense) than on mobile platforms.
visualDensity: VisualDensity.adaptivePlatformDensity,
),
home: MainScreen(title: 'Mapbox Widgets'),
);
}
}
class MainScreen extends StatefulWidget {
MainScreen({Key key, this.title}) : super(key: key);
// This widget is the home page of your application. It is stateful, meaning
// that it has a State object (defined below) that contains fields that affect
// how it looks.
// This class is the configuration for the state. It holds the values (in this
// case the title) provided by the parent (in this case the App widget) and
// used by the build method of the State. Fields in a Widget subclass are
// always marked "final".
final String title;
@override
_MainScreenState createState() => _MainScreenState();
}
class _MainScreenState extends State<MainScreen> {
MapboxMapController controller;
@override
Widget build(BuildContext context) {
return Stack(
children: [
buildMap(),
if (controller != null)
MarkerLayer(
controller: controller,
)
],
);
}
onMapCreated(MapboxMapController controller) {
this.controller = controller;
controller.addListener(() {
print("updated");
});
setState(() {});
}
Widget buildMap() {
return MapboxMap(
onMapCreated: onMapCreated,
onCameraIdle: (){
print("idle");
},
onMapIdle: (){
print("map idle");
},
accessToken:
"pk.eyJ1Ijoic29mdG1hcnNobWFsbG93IiwiYSI6ImNqN2xnOHR1NDJvczEyd2t5ZmljYXZ0NHIifQ.uUIoAP8Ip49wxqPVKLH8_g",
initialCameraPosition: CameraPosition(target: LatLng(0, 0)),
);
}
}
class Marker extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Container(
width: 50,
height: 50,
color: Colors.black,
);
}
}
class MarkerLayer extends StatefulWidget {
final MapboxMapController controller;
const MarkerLayer({Key key, @required this.controller}) : super(key: key);
@override
State<StatefulWidget> createState() => _MarkerLayerState();
}
class _MarkerLayerState extends State<MarkerLayer> {
MapboxMapController get controller {
return widget.controller;
}
LatLngBounds visibleRegion;
CameraPosition cameraPosition;
Point<double> point; // = Point<double>(0, 0);
@override
void initState() {
super.initState();
widget.controller.addListener(() {
print("updated");
// controller.
// cameraPosition = controller.cameraPosition;
// print("cameraPosition.bearing : ${cameraPosition.bearing}");
// print("cameraPosition.tilt : ${cameraPosition.tilt}");
// print("cameraPosition.target : ${cameraPosition.target}");
// print("cameraPosition.zoom : ${cameraPosition.zoom}");
controller.toScreenLocation(LatLng(0, 0)).then((value) {
print("screen point: $value");
setState(() {
point = value;
});
});
controller.getVisibleRegion().then((value) {
// setState(() {
visibleRegion = value;
// });
});
});
}
@override
Widget build(BuildContext context) {
return Stack(
children: [
if (point != null)
Positioned(
child: Marker(),
top: point.y,
left: point.x,
),
],
);
}
}