Add an option for Haptic Feedback (small vibration) when value changes

example/lib/common/models.dart

@@ -88,13 +88,6 @@ class Languages extends GithubLanguage with ISuspensionBean {
   @override
   Map<String, dynamic> toJson() {
     final Map<String, dynamic> map = super.toJson();
-    void addIfNonNull(String fieldName, dynamic value) {
-      if (value != null) {
-        map[fieldName] = value;
-      }
-    }
-
-//    addIfNonNull('tagIndex', tagIndex);
     return map;
   }
 

example/lib/ui/car_models_page.dart

@@ -1,5 +1,3 @@
-import 'dart:developer';
-
 import 'package:azlistview/azlistview.dart';
 import 'package:azlistview_example/common/index.dart';
 import 'package:flutter/material.dart';

example/lib/ui/github_language_page.dart

@@ -173,7 +173,6 @@ class _GitHubLanguagePageState extends State<GitHubLanguagePage> {
                 },
                 indexBarOptions: IndexBarOptions(
                   needRebuild: true,
-                  hapticFeedback: true,
                   selectTextStyle: TextStyle(
                       fontSize: 12,
                       color: Colors.white,

example/pubspec.lock

@@ -5,7 +5,7 @@ packages:
     dependency: transitive
     description:
       name: async
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.8.2"
   azlistview:
@@ -14,82 +14,82 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "2.0.0"
+    version: "2.1.0"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   characters:
     dependency: transitive
     description:
       name: characters
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   charcode:
     dependency: transitive
     description:
       name: charcode
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.1"
   clock:
     dependency: transitive
     description:
       name: clock
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   collection:
     dependency: transitive
     description:
       name: collection
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.15.0"
   common_utils:
     dependency: "direct main"
     description:
       name: common_utils
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.1"
+    version: "2.0.2"
   convert:
     dependency: transitive
     description:
       name: convert
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.0"
+    version: "3.0.1"
   crypto:
     dependency: transitive
     description:
       name: crypto
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.0"
+    version: "3.0.1"
   cupertino_icons:
     dependency: "direct main"
     description:
       name: cupertino_icons
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.1.3"
   decimal:
     dependency: transitive
     description:
       name: decimal
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.0"
+    version: "2.1.0"
   fake_async:
     dependency: transitive
     description:
       name: fake_async
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   flutter:
@@ -115,14 +115,21 @@ packages:
     dependency: "direct main"
     description:
       name: lpinyin
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.1"
+    version: "2.0.3"
   matcher:
     dependency: transitive
     description:
       name: matcher
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.11"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.12.11"
   material_color_utilities:
@@ -136,28 +143,28 @@ packages:
     dependency: transitive
     description:
       name: meta
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.7.0"
   path:
     dependency: transitive
     description:
       name: path
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.0"
   rational:
     dependency: transitive
     description:
       name: rational
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.0"
+    version: "2.0.0"
   scrollable_positioned_list:
     dependency: transitive
     description:
       name: scrollable_positioned_list
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.2.3"
   sky_engine:
@@ -169,58 +176,58 @@ packages:
     dependency: transitive
     description:
       name: source_span
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.1"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.10.0"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   test_api:
     dependency: transitive
     description:
       name: test_api
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.4.8"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.0"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.1"
 sdks:
-  dart: ">=2.14.0 <3.0.0"
+  dart: ">=2.15.0 <3.0.0"
   flutter: ">=1.17.0"

lib/src/az_listview.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:scrollable_positioned_list/scrollable_positioned_list.dart';
+import 'package:flutter/services.dart';
 
 import 'az_common.dart';
 import 'index_bar.dart';
@@ -23,6 +24,7 @@ class AzListView extends StatefulWidget {
     this.indexBarData = kIndexBarData,
     this.indexBarWidth = kIndexBarWidth,
     this.indexBarHeight,
+    this.contentIndexBarAlignment = Alignment.topCenter,
     this.indexBarItemHeight = kIndexBarItemHeight,
     this.hapticFeedback = false,
     this.indexBarAlignment = Alignment.centerRight,
@@ -87,6 +89,9 @@ class AzListView extends StatefulWidget {
   /// IndexBar alignment.
   final AlignmentGeometry indexBarAlignment;
 
+  /// contentIndexBar alignment.
+  final AlignmentGeometry contentIndexBarAlignment;
+
   /// IndexBar margin.
   final EdgeInsetsGeometry? indexBarMargin;
 
@@ -156,6 +161,9 @@ class _AzListViewState extends State<AzListView> {
         details.action == IndexBarDragDetails.actionUpdate) {
       selectTag = tag;
       _scrollTopIndex(tag);
+      if (widget.hapticFeedback) {
+        HapticFeedback.lightImpact();
+      }
     }
   }
 
@@ -203,6 +211,7 @@ class _AzListViewState extends State<AzListView> {
             itemHeight: widget.indexBarItemHeight,
             margin: widget.indexBarMargin,
             indexHintBuilder: widget.indexHintBuilder,
+            contentIndexBarAlignment: widget.contentIndexBarAlignment,
             indexBarDragListener: dragListener,
             options: widget.indexBarOptions,
             controller: indexBarController,