Add chipDisplay hint widgets as optional params

example/android/build.gradle

@@ -26,6 +26,6 @@ subprojects {
     project.evaluationDependsOn(':app')
 }
 
-task clean(type: Delete) {
+tasks.register("clean", Delete) {
     delete rootProject.buildDir
 }

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-5.6.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.1-all.zip

example/lib/main.dart

@@ -24,14 +24,14 @@ class Animal {
   final String name;
 
   Animal({
-    this.id,
-    this.name,
+    required this.id,
+    required this.name,
   });
 }
 
 class MyHomePage extends StatefulWidget {
-  MyHomePage({Key key, this.title}) : super(key: key);
   final String title;
+  MyHomePage({Key? key, required this.title}) : super(key: key);
   @override
   _MyHomePageState createState() => _MyHomePageState();
 }
@@ -99,6 +99,10 @@ class _MyHomePageState extends State<MyHomePage> {
               // Rounded blue MultiSelectDialogField
               //################################################################################################
               MultiSelectDialogField(
+                chipDisplay: MultiSelectChipDisplay(
+                  emptyItemWidget: Text("empty"),
+                  hintWidget: Text("data"),
+                ),
                 items: _items,
                 title: Text("Animals"),
                 selectedColor: Colors.blue,
@@ -148,7 +152,7 @@ class _MyHomePageState extends State<MyHomePage> {
                       title: Text("Animals"),
                       items: _items,
                       onConfirm: (values) {
-                        _selectedAnimals2 = values;
+                        _selectedAnimals2 = values as List<Animal>;
                       },
                       chipDisplay: MultiSelectChipDisplay(
                         onTap: (value) {
@@ -158,7 +162,7 @@ class _MyHomePageState extends State<MyHomePage> {
                         },
                       ),
                     ),
-                    _selectedAnimals2 == null || _selectedAnimals2.isEmpty
+                    _selectedAnimals2.isEmpty
                         ? Container(
                             padding: EdgeInsets.all(10),
                             alignment: Alignment.centerLeft,
@@ -196,14 +200,14 @@ class _MyHomePageState extends State<MyHomePage> {
                   setState(() {
                     _selectedAnimals3 = values;
                   });
-                  _multiSelectKey.currentState.validate();
+                  _multiSelectKey.currentState!.validate();
                 },
                 chipDisplay: MultiSelectChipDisplay(
                   onTap: (item) {
                     setState(() {
                       _selectedAnimals3.remove(item);
                     });
-                    _multiSelectKey.currentState.validate();
+                    _multiSelectKey.currentState!.validate();
                   },
                 ),
               ),
@@ -217,7 +221,7 @@ class _MyHomePageState extends State<MyHomePage> {
                 title: Text("Animals"),
                 headerColor: Colors.blue.withOpacity(0.5),
                 decoration: BoxDecoration(
-                  border: Border.all(color: Colors.blue[700], width: 1.8),
+                  border: Border.all(color: Colors.blue[700]!, width: 1.8),
                 ),
                 selectedChipColor: Colors.blue.withOpacity(0.5),
                 selectedTextStyle: TextStyle(color: Colors.blue[800]),
@@ -231,7 +235,7 @@ class _MyHomePageState extends State<MyHomePage> {
               //################################################################################################
               MultiSelectDialogField(
                 onConfirm: (val) {
-                  _selectedAnimals5 = val;
+                  _selectedAnimals5 = val as List<Animal>;
                 },
                 dialogWidth: MediaQuery.of(context).size.width * 0.7,
                 items: _items,

example/pubspec.lock

@@ -5,49 +5,48 @@ packages:
     dependency: transitive
     description:
       name: async
-      url: "https://pub.dartlang.org"
+      sha256: "947bfcf187f74dbc5e146c9eb9c0f10c9f8b30743e341481c1e2ed3ecc18c20c"
+      url: "https://pub.dev"
     source: hosted
-    version: "2.9.0"
+    version: "2.11.0"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
-      url: "https://pub.dartlang.org"
+      sha256: "6cfb5af12253eaf2b368f07bacc5a80d1301a071c73360d746b7f2e32d762c66"
+      url: "https://pub.dev"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.1"
   characters:
     dependency: transitive
     description:
       name: characters
-      url: "https://pub.dartlang.org"
+      sha256: "04a925763edad70e8443c99234dc3328f442e811f1d8fd1a72f1c8ad0f69a605"
+      url: "https://pub.dev"
     source: hosted
-    version: "1.2.1"
+    version: "1.3.0"
   clock:
     dependency: transitive
     description:
       name: clock
-      url: "https://pub.dartlang.org"
+      sha256: cb6d7f03e1de671e34607e909a7213e31d7752be4fb66a86d29fe1eb14bfb5cf
+      url: "https://pub.dev"
     source: hosted
     version: "1.1.1"
   collection:
     dependency: transitive
     description:
       name: collection
-      url: "https://pub.dartlang.org"
+      sha256: f092b211a4319e98e5ff58223576de6c2803db36221657b46c82574721240687
+      url: "https://pub.dev"
     source: hosted
-    version: "1.16.0"
-  cupertino_icons:
-    dependency: "direct main"
-    description:
-      name: cupertino_icons
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.3"
+    version: "1.17.2"
   fake_async:
     dependency: transitive
     description:
       name: fake_async
-      url: "https://pub.dartlang.org"
+      sha256: "511392330127add0b769b75a987850d136345d9227c6b94c96a04cf4a391bf78"
+      url: "https://pub.dev"
     source: hosted
     version: "1.3.1"
   flutter:
@@ -64,23 +63,26 @@ packages:
     dependency: transitive
     description:
       name: matcher
-      url: "https://pub.dartlang.org"
+      sha256: "1803e76e6653768d64ed8ff2e1e67bea3ad4b923eb5c56a295c3e634bad5960e"
+      url: "https://pub.dev"
     source: hosted
-    version: "0.12.12"
+    version: "0.12.16"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      url: "https://pub.dartlang.org"
+      sha256: "9528f2f296073ff54cb9fee677df673ace1218163c3bc7628093e7eed5203d41"
+      url: "https://pub.dev"
     source: hosted
-    version: "0.1.5"
+    version: "0.5.0"
   meta:
     dependency: transitive
     description:
       name: meta
-      url: "https://pub.dartlang.org"
+      sha256: "3c74dbf8763d36539f114c799d8a2d87343b5067e9d796ca22b5eb8437090ee3"
+      url: "https://pub.dev"
     source: hosted
-    version: "1.8.0"
+    version: "1.9.1"
   multi_select_flutter:
     dependency: "direct main"
     description:
@@ -92,9 +94,10 @@ packages:
     dependency: transitive
     description:
       name: path
-      url: "https://pub.dartlang.org"
+      sha256: "8829d8a55c13fc0e37127c29fedf290c102f4e40ae94ada574091fe0ff96c917"
+      url: "https://pub.dev"
     source: hosted
-    version: "1.8.2"
+    version: "1.8.3"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -104,50 +107,65 @@ packages:
     dependency: transitive
     description:
       name: source_span
-      url: "https://pub.dartlang.org"
+      sha256: "53e943d4206a5e30df338fd4c6e7a077e02254531b138a15aec3bd143c1a8b3c"
+      url: "https://pub.dev"
     source: hosted
-    version: "1.9.0"
+    version: "1.10.0"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
-      url: "https://pub.dartlang.org"
+      sha256: c3c7d8edb15bee7f0f74debd4b9c5f3c2ea86766fe4178eb2a18eb30a0bdaed5
+      url: "https://pub.dev"
     source: hosted
-    version: "1.10.0"
+    version: "1.11.0"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
-      url: "https://pub.dartlang.org"
+      sha256: "83615bee9045c1d322bbbd1ba209b7a749c2cbcdcb3fdd1df8eb488b3279c1c8"
+      url: "https://pub.dev"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.1"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
-      url: "https://pub.dartlang.org"
+      sha256: "556692adab6cfa87322a115640c11f13cb77b3f076ddcc5d6ae3c20242bedcde"
+      url: "https://pub.dev"
     source: hosted
-    version: "1.1.1"
+    version: "1.2.0"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
-      url: "https://pub.dartlang.org"
+      sha256: a29248a84fbb7c79282b40b8c72a1209db169a2e0542bce341da992fe1bc7e84
+      url: "https://pub.dev"
     source: hosted
     version: "1.2.1"
   test_api:
     dependency: transitive
     description:
       name: test_api
-      url: "https://pub.dartlang.org"
+      sha256: "75760ffd7786fffdfb9597c35c5b27eaeec82be8edfb6d71d32651128ed7aab8"
+      url: "https://pub.dev"
     source: hosted
-    version: "0.4.12"
+    version: "0.6.0"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
-      url: "https://pub.dartlang.org"
+      sha256: "80b3257d1492ce4d091729e3a67a60407d227c27241d6927be0130c98e741803"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.4"
+  web:
+    dependency: transitive
+    description:
+      name: web
+      sha256: dc8ccd225a2005c1be616fe02951e2e342092edf968cf0844220383757ef8f10
+      url: "https://pub.dev"
     source: hosted
-    version: "2.1.2"
+    version: "0.1.4-beta"
 sdks:
-  dart: ">=2.17.0-0 <3.0.0"
+  dart: ">=3.1.0 <4.0.0"

example/pubspec.yaml

@@ -8,7 +8,7 @@ publish_to: "none" # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.7.0 <3.0.0"
+  sdk: '>=3.1.0 <4.0.0'
 
 dependencies:
   flutter:
@@ -18,7 +18,6 @@ dependencies:
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
-  cupertino_icons: ^0.1.3
 
 dev_dependencies:
   flutter_test:

example/test/widget_test.dart

@@ -8,7 +8,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-import 'package:example/main.dart';
+import '../lib/main.dart';
 
 void main() {
   testWidgets('Counter increments smoke test', (WidgetTester tester) async {