Migrate to null safety

example/lib/data.dart

@@ -1,4 +1,4 @@
-import 'package:latlong/latlong.dart';
+import 'package:latlong2/latlong.dart';
 
 final lines = [
   [
@@ -1315,5 +1315,5 @@ final lines = [
 ];
 
 List<LatLng> getPoints(int index) {
-  return lines[index].map((e) => LatLng(e[1], e[0])).toList();
+  return lines[index].map((e) => LatLng(e[1] as double, e[0] as double)).toList();
 }

example/lib/main.dart

@@ -1,8 +1,9 @@
-import 'package:example/data.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_map/flutter_map.dart';
 import 'package:flutter_map_tappable_polyline/flutter_map_tappable_polyline.dart';
-import 'package:latlong/latlong.dart';
+import 'package:latlong2/latlong.dart';
+
+import 'data.dart';
 
 void main() {
   runApp(MyApp());
@@ -32,7 +33,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyHomePage extends StatefulWidget {
-  MyHomePage({Key key, this.title}) : super(key: key);
+  MyHomePage({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
@@ -43,7 +44,7 @@ class MyHomePage extends StatefulWidget {
   // used by the build method of the State. Fields in a Widget subclass are
   // always marked "final".
 
-  final String title;
+  final String? title;
 
   @override
   _MyHomePageState createState() => _MyHomePageState();
@@ -62,7 +63,7 @@ class _MyHomePageState extends State<MyHomePage> {
       appBar: AppBar(
         // Here we take the value from the MyHomePage object that was created by
         // the App.build method, and use it to set our appbar title.
-        title: Text(widget.title),
+        title: Text(widget.title!),
       ),
       body: FlutterMap(
         options: MapOptions(

example/pubspec.lock

@@ -1,62 +1,48 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
-  ansicolor:
-    dependency: transitive
-    description:
-      name: ansicolor
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.2"
   async:
     dependency: transitive
     description:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.5.0-nullsafety.1"
+    version: "2.6.1"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0-nullsafety.1"
+    version: "2.1.0"
   characters:
     dependency: transitive
     description:
       name: characters
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0-nullsafety.3"
+    version: "1.1.0"
   charcode:
     dependency: transitive
     description:
       name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0-nullsafety.1"
+    version: "1.2.0"
   clock:
     dependency: transitive
     description:
       name: clock
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0-nullsafety.1"
+    version: "1.1.0"
   collection:
     dependency: transitive
     description:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.15.0-nullsafety.3"
-  console_log_handler:
-    dependency: transitive
-    description:
-      name: console_log_handler
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.6"
+    version: "1.15.0"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -70,115 +56,122 @@ packages:
       name: fake_async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0-nullsafety.1"
+    version: "1.2.0"
   flutter:
     dependency: "direct main"
     description: flutter
     source: sdk
     version: "0.0.0"
-  flutter_image:
-    dependency: transitive
-    description:
-      name: flutter_image
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.0.0"
   flutter_map:
-    dependency: "direct dev"
+    dependency: transitive
     description:
       name: flutter_map
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.11.0"
+    version: "0.13.0"
   flutter_map_tappable_polyline:
     dependency: "direct dev"
     description:
       path: ".."
       relative: true
     source: path
-    version: "1.2.0"
+    version: "1.3.1"
   flutter_test:
     dependency: "direct dev"
     description: flutter
     source: sdk
     version: "0.0.0"
-  intl:
+  http:
     dependency: transitive
     description:
-      name: intl
+      name: http
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.16.1"
-  latlong:
+    version: "0.13.3"
+  http_parser:
     dependency: transitive
     description:
-      name: latlong
+      name: http_parser
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.6.1"
-  lists:
+    version: "4.0.0"
+  intl:
     dependency: transitive
     description:
-      name: lists
+      name: intl
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.17.0"
+  latlong2:
+    dependency: transitive
+    description:
+      name: latlong2
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.1.6"
-  logging:
+    version: "0.8.0"
+  lists:
     dependency: transitive
     description:
-      name: logging
+      name: lists
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.11.4"
+    version: "1.0.0"
   matcher:
     dependency: transitive
     description:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.10-nullsafety.1"
+    version: "0.12.10"
   meta:
     dependency: transitive
     description:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0-nullsafety.3"
+    version: "1.3.0"
   mgrs_dart:
     dependency: transitive
     description:
       name: mgrs_dart
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.1"
+    version: "2.0.0"
   path:
     dependency: transitive
     description:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0-nullsafety.1"
-  positioned_tap_detector:
+    version: "1.8.0"
+  pedantic:
+    dependency: transitive
+    description:
+      name: pedantic
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.11.0"
+  positioned_tap_detector_2:
     dependency: transitive
     description:
-      name: positioned_tap_detector
+      name: positioned_tap_detector_2
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.3"
+    version: "1.0.0"
   proj4dart:
     dependency: transitive
     description:
       name: proj4dart
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
+    version: "2.0.0"
   quiver:
     dependency: transitive
     description:
       name: quiver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.3"
+    version: "3.0.1"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -190,91 +183,84 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0-nullsafety.2"
+    version: "1.8.1"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.10.0-nullsafety.1"
+    version: "1.10.0"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0-nullsafety.1"
+    version: "2.1.0"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0-nullsafety.1"
+    version: "1.1.0"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0-nullsafety.1"
+    version: "1.2.0"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.19-nullsafety.2"
+    version: "0.3.0"
   transparent_image:
     dependency: transitive
     description:
       name: transparent_image
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.0"
+    version: "2.0.0"
   tuple:
     dependency: transitive
     description:
       name: tuple
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.3"
+    version: "2.0.0"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0-nullsafety.3"
+    version: "1.3.0"
   unicode:
     dependency: transitive
     description:
       name: unicode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.3"
-  validate:
-    dependency: transitive
-    description:
-      name: validate
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.7.0"
+    version: "0.3.0"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0-nullsafety.3"
+    version: "2.1.0"
   wkt_parser:
     dependency: transitive
     description:
       name: wkt_parser
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.7"
+    version: "2.0.0"
 sdks:
-  dart: ">=2.10.0-110 <2.11.0"
-  flutter: ">=1.10.15 <2.0.0"
+  dart: ">=2.12.0 <3.0.0"
+  flutter: ">=2.0.0"

example/pubspec.yaml

@@ -14,7 +14,7 @@ description: A new Flutter project.
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.7.0 <3.0.0"
+  sdk: '>=2.12.0 <3.0.0'
 
 dependencies:
   flutter:
@@ -28,7 +28,6 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  flutter_map: ^0.11.0
   flutter_map_tappable_polyline:
     path: ../