Null safety migration

android/build.gradle

@@ -2,7 +2,7 @@ group 'com.humazed.google_map_location_picker'
 version '1.0-SNAPSHOT'
 
 buildscript {
-    ext.kotlin_version = '1.3.31'
+    ext.kotlin_version = '1.3.40'
     repositories {
         google()
         jcenter()

example/android/app/build.gradle

@@ -39,7 +39,7 @@ android {
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "com.humazed.google_map_location_picker_example"
-        minSdkVersion 16
+        minSdkVersion 20
         targetSdkVersion 28
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName

example/android/app/src/main/AndroidManifest.xml

@@ -38,11 +38,11 @@
             </intent-filter>
         </activity>
 
-        <meta-data
-            android:name="com.google.android.gms.version"
-            android:value="@integer/google_play_services_version" />
+<!--        <meta-data-->
+<!--            android:name="com.google.android.gms.version"-->
+<!--            android:value="1" />-->
         <meta-data
             android:name="com.google.android.geo.API_KEY"
-            android:value="@string/GOOGLE_MAPS_API_KEY" />
+            android:value="API_KEY" />
     </application>
 </manifest>

example/android/app/src/main/res/values/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+         
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">@android:color/white</item>
+    </style>
+</resources>

example/android/build.gradle

@@ -6,7 +6,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.6.3'
+        classpath 'com.android.tools.build:gradle:4.2.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }

example/android/gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-all.zip

example/ios/Flutter/flutter_export_environment.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+# This is a generated file; do not edit or check into version control.
+export "FLUTTER_ROOT=/Users/blb/Development/flutter"
+export "FLUTTER_APPLICATION_PATH=/Users/blb/Development/google_map_location_picker/example"
+export "COCOAPODS_PARALLEL_CODE_SIGN=true"
+export "FLUTTER_TARGET=lib/main.dart"
+export "FLUTTER_BUILD_DIR=build"
+export "FLUTTER_BUILD_NAME=1.0.0"
+export "FLUTTER_BUILD_NUMBER=1.0.0"
+export "DART_OBFUSCATION=false"
+export "TRACK_WIDGET_CREATION=false"
+export "TREE_SHAKE_ICONS=false"
+export "PACKAGE_CONFIG=.packages"

example/lib/generated/i18n.dart

@@ -11,12 +11,12 @@ import 'package:flutter/material.dart';
 class S implements WidgetsLocalizations {
   const S();
 
-  static S current;
+  static S? current;
 
   static const GeneratedLocalizationsDelegate delegate =
       GeneratedLocalizationsDelegate();
 
-  static S of(BuildContext context) => Localizations.of<S>(context, S);
+  static S? of(BuildContext context) => Localizations.of<S>(context, S);
 
   @override
   TextDirection get textDirection => TextDirection.ltr;
@@ -33,7 +33,7 @@ class $en extends S {
   const $en();
 }
 
-class GeneratedLocalizationsDelegate extends LocalizationsDelegate<S> {
+class GeneratedLocalizationsDelegate extends LocalizationsDelegate<S?> {
   const GeneratedLocalizationsDelegate();
 
   List<Locale> get supportedLocales {
@@ -44,8 +44,8 @@ class GeneratedLocalizationsDelegate extends LocalizationsDelegate<S> {
   }
 
   LocaleListResolutionCallback listResolution(
-      {Locale fallback, bool withCountry = true}) {
-    return (List<Locale> locales, Iterable<Locale> supported) {
+      {Locale? fallback, bool withCountry = true}) {
+    return (List<Locale>? locales, Iterable<Locale> supported) {
       if (locales == null || locales.isEmpty) {
         return fallback ?? supported.first;
       } else {
@@ -55,29 +55,29 @@ class GeneratedLocalizationsDelegate extends LocalizationsDelegate<S> {
   }
 
   LocaleResolutionCallback resolution(
-      {Locale fallback, bool withCountry = true}) {
-    return (Locale locale, Iterable<Locale> supported) {
+      {Locale? fallback, bool withCountry = true}) {
+    return (Locale? locale, Iterable<Locale> supported) {
       return _resolve(locale, fallback, supported, withCountry);
     };
   }
 
   @override
-  Future<S> load(Locale locale) {
-    final String lang = getLang(locale);
+  Future<S?> load(Locale locale) {
+    final String? lang = getLang(locale);
     if (lang != null) {
       switch (lang) {
         case "ar":
           S.current = const $ar();
-          return SynchronousFuture<S>(S.current);
+          return SynchronousFuture<S?>(S.current);
         case "en":
           S.current = const $en();
-          return SynchronousFuture<S>(S.current);
+          return SynchronousFuture<S?>(S.current);
         default:
         // NO-OP.
       }
     }
     S.current = const S();
-    return SynchronousFuture<S>(S.current);
+    return SynchronousFuture<S?>(S.current);
   }
 
   @override
@@ -89,7 +89,7 @@ class GeneratedLocalizationsDelegate extends LocalizationsDelegate<S> {
   ///
   /// Internal method to resolve a locale from a list of locales.
   ///
-  Locale _resolve(Locale locale, Locale fallback, Iterable<Locale> supported,
+  Locale _resolve(Locale? locale, Locale? fallback, Iterable<Locale> supported,
       bool withCountry) {
     if (locale == null || !_isSupported(locale, withCountry)) {
       return fallback ?? supported.first;
@@ -125,7 +125,7 @@ class GeneratedLocalizationsDelegate extends LocalizationsDelegate<S> {
         // If no country requirement is requested, check if this locale has no country.
         if (true != withCountry &&
             (supportedLocale.countryCode == null ||
-                supportedLocale.countryCode.isEmpty)) {
+                supportedLocale.countryCode!.isEmpty)) {
           return true;
         }
       }
@@ -134,8 +134,8 @@ class GeneratedLocalizationsDelegate extends LocalizationsDelegate<S> {
   }
 }
 
-String getLang(Locale l) => l == null
+String? getLang(Locale l) => l == null
     ? null
-    : l.countryCode != null && l.countryCode.isEmpty
+    : l.countryCode != null && l.countryCode!.isEmpty
         ? l.languageCode
         : l.toString();

example/lib/main.dart

@@ -3,7 +3,6 @@ import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:google_map_location_picker/generated/l10n.dart'
     as location_picker;
 import 'package:google_map_location_picker/google_map_location_picker.dart';
-import 'package:google_map_location_picker_example/keys.dart';
 import 'package:google_maps_flutter/google_maps_flutter.dart';
 
 import 'generated/i18n.dart';
@@ -16,7 +15,7 @@ class MyApp extends StatefulWidget {
 }
 
 class _MyAppState extends State<MyApp> {
-  LocationResult _pickedLocation;
+  LocationResult? _pickedLocation;
 
   @override
   Widget build(BuildContext context) {
@@ -50,9 +49,9 @@ class _MyAppState extends State<MyApp> {
               children: <Widget>[
                 RaisedButton(
                   onPressed: () async {
-                    LocationResult result = await showLocationPicker(
+                    LocationResult? result = await showLocationPicker(
                       context,
-                      apiKey,
+                      "API_KEY",
                       initialCenter: LatLng(31.1975844, 29.9598339),
 //                      automaticallyAnimateToCurrentLocation: true,
 //                      mapStylePath: 'assets/mapStyle.json',