migrated to sound null safety

example/ios/Flutter/flutter_export_environment.sh

@@ -1,10 +1,13 @@
 #!/bin/sh
 # This is a generated file; do not edit or check into version control.
-export "FLUTTER_ROOT=/Users/USER/Development/flutterapp/flutter"
-export "FLUTTER_APPLICATION_PATH=/Users/USER/Development/Dev Plugins/freshchat/example"
-export "FLUTTER_TARGET=lib/main.dart"
+export "FLUTTER_ROOT=C:\src\flutter"
+export "FLUTTER_APPLICATION_PATH=E:\AppDev\Univents\fresh_chat\example"
+export "COCOAPODS_PARALLEL_CODE_SIGN=true"
+export "FLUTTER_TARGET=lib\main.dart"
 export "FLUTTER_BUILD_DIR=build"
-export "SYMROOT=${SOURCE_ROOT}/../build/ios"
-export "FLUTTER_FRAMEWORK_DIR=/Users/USER/Development/flutterapp/flutter/bin/cache/artifacts/engine/ios"
 export "FLUTTER_BUILD_NAME=1.0.0"
 export "FLUTTER_BUILD_NUMBER=1"
+export "DART_OBFUSCATION=false"
+export "TRACK_WIDGET_CREATION=false"
+export "TREE_SHAKE_ICONS=false"
+export "PACKAGE_CONFIG=.packages"

example/pubspec.lock

@@ -1,69 +1,62 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
-  archive:
-    dependency: transitive
-    description:
-      name: archive
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.11"
-  args:
-    dependency: transitive
-    description:
-      name: args
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.5.2"
   async:
     dependency: transitive
     description:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "2.8.2"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
-  charcode:
+    version: "2.1.0"
+  characters:
     dependency: transitive
     description:
-      name: charcode
+      name: characters
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.2"
-  collection:
+    version: "1.2.0"
+  charcode:
     dependency: transitive
     description:
-      name: collection
+      name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.14.11"
-  convert:
+    version: "1.3.1"
+  clock:
     dependency: transitive
     description:
-      name: convert
+      name: clock
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.1"
-  crypto:
+    version: "1.1.0"
+  collection:
     dependency: transitive
     description:
-      name: crypto
+      name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.3"
+    version: "1.15.0"
   cupertino_icons:
     dependency: "direct main"
     description:
       name: cupertino_icons
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.1.2"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -75,19 +68,12 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "1.2.5"
+    version: "1.4.0"
   flutter_test:
     dependency: "direct dev"
     description: flutter
     source: sdk
     version: "0.0.0"
-  image:
-    dependency: transitive
-    description:
-      name: image
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.4"
   localstorage:
     dependency: "direct main"
     description:
@@ -101,49 +87,35 @@ packages:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.6"
+    version: "0.12.11"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.3"
   meta:
     dependency: transitive
     description:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.8"
+    version: "1.7.0"
   path:
     dependency: transitive
     description:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.8.0"
   path_provider:
     dependency: transitive
     description:
       name: path_provider
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.2"
-  pedantic:
-    dependency: transitive
-    description:
-      name: pedantic
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.8.0+1"
-  petitparser:
-    dependency: transitive
-    description:
-      name: petitparser
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.4.0"
-  quiver:
-    dependency: transitive
-    description:
-      name: quiver
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.5"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -155,63 +127,56 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.5"
+    version: "1.8.1"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.3"
+    version: "1.10.0"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.0"
+    version: "2.1.0"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
+    version: "1.1.0"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0"
+    version: "1.2.0"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.11"
+    version: "0.4.8"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.6"
+    version: "1.3.0"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.8"
-  xml:
-    dependency: transitive
-    description:
-      name: xml
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.5.0"
+    version: "2.1.1"
 sdks:
-  dart: ">=2.4.0 <3.0.0"
-  flutter: ">=0.1.4 <2.0.0"
+  dart: ">=2.14.0 <3.0.0"
+  flutter: ">=1.12.0"

lib/src/freshchat.dart

@@ -27,9 +27,9 @@ class FlutterFreshchat {
   /// `notificationSoundEnabled` property is used enabled or disable in-app notfication
   /// sound. It default value is set to `true`. (NOTE: IOS only).
   static Future<bool> init({
-    @required String appID,
-    @required String appKey,
-    @required String domain,
+    required String appID,
+    required String appKey,
+    required String domain,
     bool cameraEnabled = true,
     bool gallerySelectionEnabled = true,
     bool teamMemberInfoVisible = true,
@@ -62,8 +62,8 @@ class FlutterFreshchat {
   /// customProperties["loggedIn"] = "true";
   /// ```
   static Future<bool> updateUserInfo({
-    @required FreshchatUser user,
-    Map<String, String> customProperties,
+    required FreshchatUser user,
+    Map<String, String>? customProperties,
   }) async {
     Map<String, dynamic> json = user.toJson();
 
@@ -80,8 +80,8 @@ class FlutterFreshchat {
   /// `externalID` is required and returns a `restoreID` you can save it
   /// and use to restore the chats messages.
   static Future<String> identifyUser({
-    @required String externalID,
-    String restoreID,
+    required String externalID,
+    String? restoreID,
   }) async {
     final Map<String, String> params = <String, String>{
       "externalID": externalID,
@@ -106,7 +106,7 @@ class FlutterFreshchat {
   /// You can also pass a title for the chat screen.
   static Future<bool> showConversations({
     List<String> tags = const [],
-    String title,
+    String? title,
   }) async {
     final Map<String, dynamic> params = <String, dynamic>{
       "tags": tags,
@@ -145,7 +145,7 @@ class FlutterFreshchat {
   }
 
   /// Setup Push notification for freshchat by passing `token` to the methd.
-  static Future<bool> setupPushNotifications({@required String token}) async {
+  static Future<bool> setupPushNotifications({required String token}) async {
     final Map<String, dynamic> params = <String, dynamic>{"token": token};
 
     final bool result =
@@ -155,7 +155,7 @@ class FlutterFreshchat {
   }
 
   /// Send message
-  static Future<bool> send({@required String message, String tag}) async {
+  static Future<bool> send({required String message, String? tag}) async {
     final Map<String, dynamic> params = <String, dynamic>{
       "message": message,
       "tag": tag

lib/src/freshchat_user.dart

@@ -5,14 +5,14 @@ part of freshchat;
 /// You can send basic user information at any point to give you more context
 /// on the user when your support agents are messaging back and forth with them.
 class FreshchatUser {
-  String id;
-  String email;
-  String referenceId;
-  DateTime createdTime;
-  String phone;
-  String firstName;
-  String lastName;
-  String phoneCountryCode;
+  String? id;
+  String? email;
+  String? referenceId;
+  DateTime? createdTime;
+  String? phone;
+  String? firstName;
+  String? lastName;
+  String? phoneCountryCode;
 
   FreshchatUser.initial()
       : id = "",