Feature: ability to specify the number of visible numbers in the spinner

.gitignore

@@ -1,10 +1,88 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
 .DS_Store
-.dart_tool/
+.atom/
+.buildlog/
+.history
+.svn/
+coverage/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+.vscode/
 
+# Firebase
+**/ios/GoogleService-Info.plist
+
+# Flutter/Dart/Pub related
+**/doc/api/
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
 .packages
+.pub-cache/
 .pub/
+/build/
+
+# Android related
+**/android/**/gradle-wrapper.jar
+**/android/.gradle
+**/android/captures/
+**/android/gradlew
+**/android/gradlew.bat
+**/android/local.properties
+**/android/**/GeneratedPluginRegistrant.java
+
+# iOS/XCode related
+#**/ios/**/*.mode1v3
+#**/ios/**/*.mode2v3
+#**/ios/**/*.moved-aside
+#**/ios/**/*.pbxuser
+#**/ios/**/*.perspectivev3
+#**/ios/**/*sync/
+#**/ios/**/.sconsign.dblite
+#**/ios/**/.tags*
+#**/ios/**/.vagrant/
+#**/ios/**/DerivedData/
+#**/ios/**/Icon?
+#**/ios/**/Pods/
+#**/ios/**/.symlinks/
+#**/ios/**/profile
+#**/ios/**/xcuserdata
+#**/ios/.generated/
+#**/ios/Flutter/App.framework
+#**/ios/Flutter/Flutter.framework
+#**/ios/Flutter/Generated.xcconfig
+#**/ios/Flutter/app.flx
+#**/ios/Flutter/flutter_export_environment.sh
+#**/ios/Flutter/app.zip
+#**/ios/Flutter/flutter_assets/
+#**/ios/ServiceDefinitions.json
+#**/ios/Runner/GeneratedPluginRegistrant.*
+#**/ios/Flutter/Flutter.podspec
+#**/ios/Flutter/flutter_export_environment.sh
+
+# Web related
+lib/generated_plugin_registrant.dart
+
+# Exceptions to above rules.
+!**/ios/**/default.mode1v3
+!**/ios/**/default.mode2v3
+!**/ios/**/default.pbxuser
+!**/ios/**/default.perspectivev3
+!/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages
 
-build/
-ios/.generated/
-ios/Flutter/Generated.xcconfig
-ios/Runner/GeneratedPluginRegistrant.*
+.env*
+!.env.example
+!.env.development
+!.env.production

example/ios/Flutter/flutter_export_environment.sh

@@ -1,13 +1,13 @@
 #!/bin/sh
 # This is a generated file; do not edit or check into version control.
-export "FLUTTER_ROOT=/Users/mjr/flutter"
-export "FLUTTER_APPLICATION_PATH=/Users/mjr/Documents/code/libraries/dart/flutter_time_picker_spinner/example"
-export "FLUTTER_TARGET=lib/main.dart"
+export "FLUTTER_ROOT=C:\flutter"
+export "FLUTTER_APPLICATION_PATH=C:\Users\DariusDavidonis\private\flutter_time_picker_spinner\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_BUILD_NAME=1.0.0"
 export "FLUTTER_BUILD_NUMBER=1"
 export "DART_OBFUSCATION=false"
-export "TRACK_WIDGET_CREATION=false"
+export "TRACK_WIDGET_CREATION=true"
 export "TREE_SHAKE_ICONS=false"
-export "PACKAGE_CONFIG=.packages"
+export "PACKAGE_CONFIG=.dart_tool/package_config.json"

example/test/widget_test.dart

@@ -5,7 +5,6 @@
 // gestures. You can also use WidgetTester to find child widgets in the widget
 // tree, read text, and verify that the values of widget properties are correct.
 
-import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
 //import 'package:example/main.dart';

lib/flutter_time_picker_spinner.dart

@@ -79,10 +79,12 @@ class TimePickerSpinner extends StatefulWidget {
   final double? spacing;
   final bool isForce2Digits;
   final TimePickerCallback? onTimeChange;
+  final int numberOfVisibleNums;
 
   TimePickerSpinner(
       {Key? key,
       this.time,
+      this.numberOfVisibleNums = 3,
       this.minutesInterval = 1,
       this.secondsInterval = 1,
       this.is24HourMode = true,
@@ -115,7 +117,7 @@ class _TimePickerSpinnerState extends State<TimePickerSpinner> {
   bool isMinuteScrolling = false;
   bool isSecondsScrolling = false;
   bool isAPScrolling = false;
-
+  int offset = 0;
   /// default settings
   TextStyle defaultHighlightTextStyle =
       TextStyle(fontSize: 32, color: Colors.black);
@@ -187,39 +189,39 @@ class _TimePickerSpinnerState extends State<TimePickerSpinner> {
 
   @override
   void initState() {
-    currentTime = widget.time == null ? DateTime.now() : widget.time;
+
+    offset = widget.numberOfVisibleNums ~/ 2;
 
-    currentSelectedHourIndex =
-        (currentTime!.hour % (widget.is24HourMode ? 24 : 12)) + _getHourCount();
+    currentTime = widget.time == null ? DateTime.now() : widget.time;
+    currentSelectedHourIndex = widget.is24HourMode ? currentTime!.hour : currentTime!.hour ~/ 12;
+    // currentSelectedHourIndex =
+    //     (currentTime!.hour % (widget.is24HourMode ? 24 : 12)) + _getHourCount();
     hourController = ScrollController(
         initialScrollOffset:
-            (currentSelectedHourIndex - 1) * _getItemHeight()!);
+            (currentSelectedHourIndex - offset) * _getItemHeight()!);
 
     currentSelectedMinuteIndex =
         (currentTime!.minute / widget.minutesInterval).floor() +
             (isLoop(_getMinuteCount()) ? _getMinuteCount() : 1);
     minuteController = ScrollController(
         initialScrollOffset:
-            (currentSelectedMinuteIndex - 1) * _getItemHeight()!);
-    //print(currentSelectedMinuteIndex);
-    //print((currentSelectedMinuteIndex - 1) * _getItemHeight()!);
+            (currentSelectedMinuteIndex - offset) * _getItemHeight()!);
 
     currentSelectedSecondIndex =
         (currentTime!.second / widget.secondsInterval).floor() +
             (isLoop(_getSecondCount()) ? _getSecondCount() : 1);
     secondController = ScrollController(
         initialScrollOffset:
-            (currentSelectedSecondIndex - 1) * _getItemHeight()!);
+            (currentSelectedSecondIndex - offset) * _getItemHeight()!);
 
     currentSelectedAPIndex = currentTime!.hour >= 12 ? 2 : 1;
     apController = ScrollController(
-        initialScrollOffset: (currentSelectedAPIndex - 1) * _getItemHeight()!);
+        initialScrollOffset: (currentSelectedAPIndex - offset) * _getItemHeight()!);
 
     super.initState();
 
     if (widget.onTimeChange != null) {
-      WidgetsBinding.instance!
-          .addPostFrameCallback((_) => widget.onTimeChange!(getDateTime()));
+      WidgetsBinding.instance.addPostFrameCallback((_) => widget.onTimeChange!(getDateTime()));
     }
   }
 
@@ -229,7 +231,7 @@ class _TimePickerSpinnerState extends State<TimePickerSpinner> {
     List<Widget> contents = [
       SizedBox(
         width: _getItemWidth(),
-        height: _getItemHeight()! * 3,
+        height: _getItemHeight()! * widget.numberOfVisibleNums,
         child: spinner(
           hourController,
           _getHourCount(),
@@ -246,7 +248,7 @@ class _TimePickerSpinnerState extends State<TimePickerSpinner> {
       spacer(),
       SizedBox(
         width: _getItemWidth(),
-        height: _getItemHeight()! * 3,
+        height: _getItemHeight()! * widget.numberOfVisibleNums,
         child: spinner(
           minuteController,
           _getMinuteCount(),
@@ -266,7 +268,7 @@ class _TimePickerSpinnerState extends State<TimePickerSpinner> {
       contents.add(spacer());
       contents.add(SizedBox(
         width: _getItemWidth(),
-        height: _getItemHeight()! * 3,
+        height: _getItemHeight()! * widget.numberOfVisibleNums,
         child: spinner(
           secondController,
           _getSecondCount(),
@@ -286,7 +288,7 @@ class _TimePickerSpinnerState extends State<TimePickerSpinner> {
       contents.add(spacer());
       contents.add(SizedBox(
         width: _getItemWidth()! * 1.2,
-        height: _getItemHeight()! * 3,
+        height: _getItemHeight()! * widget.numberOfVisibleNums,
         child: apSpinner(),
       ));
     }
@@ -301,12 +303,13 @@ class _TimePickerSpinnerState extends State<TimePickerSpinner> {
   Widget spacer() {
     return Container(
       width: _getSpacing(),
-      height: _getItemHeight()! * 3,
+      height: _getItemHeight()! * widget.numberOfVisibleNums,
     );
   }
 
   Widget spinner(
       ScrollController controller,
+      ///  Max int value of spinner number.
       int max,
       int selectedIndex,
       bool isScrolling,
@@ -329,7 +332,7 @@ class _TimePickerSpinnerState extends State<TimePickerSpinner> {
                 onUpdateSelectedIndex(selectedIndex + max);
                 controller
                     .jumpTo(controller.offset + (max * _getItemHeight()!));
-              } else if (segment == 2) {
+              } else if (segment == widget.numberOfVisibleNums -1) {
                 onUpdateSelectedIndex(selectedIndex - max);
                 controller
                     .jumpTo(controller.offset - (max * _getItemHeight()!));
@@ -345,7 +348,7 @@ class _TimePickerSpinnerState extends State<TimePickerSpinner> {
         } else if (scrollNotification is ScrollUpdateNotification) {
           setState(() {
             onUpdateSelectedIndex(
-                (controller.offset / _getItemHeight()!).round() + 1);
+                (controller.offset / _getItemHeight()!).round() + offset);
           });
         }
         return true;
@@ -378,7 +381,7 @@ class _TimePickerSpinnerState extends State<TimePickerSpinner> {
           );
         },
         controller: controller,
-        itemCount: isLoop(max) ? max * 3 : max + 2,
+        itemCount: isLoop(max) ? max * widget.numberOfVisibleNums : max + 2,
         physics: ItemScrollPhysics(itemHeight: _getItemHeight()),
         padding: EdgeInsets.zero,
       ),
@@ -432,7 +435,7 @@ class _TimePickerSpinnerState extends State<TimePickerSpinner> {
           );
         },
         controller: apController,
-        itemCount: 4,
+        itemCount: widget.numberOfVisibleNums +1,
         physics: ItemScrollPhysics(
           itemHeight: _getItemHeight(),
           targetPixelsLimit: 1,