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Description:

wheel slider

Wheel Slider #
Wheel Slider offers a lot of customisation and enables you to scroll around with a wheel-like appearance.

Wheel Slider is built upon wheel_chooser

Features #

🔢 Display numbers instead of lines.
↔↕ Horizontal/Vertical scroll.
📳 Vibrate on scroll.
🔧 Custom widgets.
🔧 Custom pointer.
🖼️ Add background widget to the slider.
🎨 Change Lines or Pointer color.

Getting started #
Installation
Add wheel_slider: to your pubspec.yaml dependencies then run flutter pub get.
dependencies:
wheel_slider:
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Import
Add this line to import the package.
import 'package:wheel_slider/wheel_slider.dart';
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Android #
Add the vibrate permission to your AndroidManifest.xml file, located in <project root>/android/app/src/main/AndroidManifest.xml.

android.permission.VIBRATE - allows access to the vibrator.

<uses-permission android:name="android.permission.VIBRATE"/>
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IOS #
Supports vibration with duration and pattern on CoreHaptics devices. On older devices, the pattern is emulated with 500ms long vibrations.
Usage #
To use Line Slider:
WheelSlider(
totalCount: _totalCount,
initValue: _initValue,
onValueChanged: (val) {
setState(() {
_currentValue = val;
});
},
hapticFeedbackType: HapticFeedbackType.vibrate,
),
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To use Line Slider with displaying double value:
WheelSlider(
interval: 0.5, // this field is used to show decimal/double values
totalCount: _totalCount,
initValue: _initValue,
onValueChanged: (val) {
setState(() {
_currentValue = val;
});
},
hapticFeedbackType: HapticFeedbackType.vibrate,
),
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To use Number Slider:
WheelSlider.number(
perspective: 0.01,
totalCount: _nTotalCount,
initValue: _nInitValue,
unSelectedNumberStyle: const TextStyle(
fontSize: 12.0,
color: Colors.black54,
),
currentIndex: _nCurrentValue,
onValueChanged: (val) {
setState(() {
_nCurrentValue = val;
});
},
hapticFeedbackType: HapticFeedbackType.heavyImpact,
),
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To use Number Slider with displaying double value:
WheelSlider.number(
interval: 0.5, // this field is used to show decimal/double values
perspective: 0.01,
totalCount: _nTotalCount,
initValue: _nInitValue,
unSelectedNumberStyle: const TextStyle(
fontSize: 12.0,
color: Colors.black54,
),
currentIndex: _nCurrentValue,
onValueChanged: (val) {
setState(() {
_nCurrentValue = val;
});
},
hapticFeedbackType: HapticFeedbackType.heavyImpact,
),
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To use Custom Widget Slider:
WheelSlider.customWidget(
totalCount: 12,
initValue: 5,
isInfinite: false,
scrollPhysics: const BouncingScrollPhysics(),
children: List.generate(12, (index) => const Center(
child: FlutterLogo(
size: 100,
),
)),
onValueChanged: (val) {
setState(() {
_cCurrentValue = val;
});
},
hapticFeedbackType: HapticFeedbackType.vibrate,
showPointer: false,
itemSize: 80,
),
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Properties

interval - To display decimal values. By default it is set to 1, when changed totalCount also to be updated accordingly.
currentIndex - Gets the current value as you scroll the Number Slider.
perspective - Change the way you want the slider to look from a flat to a wheel like shape and the value must be <= 0.01.
squeeze - Adjust the spacing between each item in the slider.
isVibrate - To turn on/off vibration while scrolling.
hapticFeedbackType - Allows you to change the vibration type.
itemSize - Size of each item in the slider.
background - Use any widget to add as a background to the slider.
allowPointerTappable:

When this is set to false scroll functionality won't work for the occupied region.
When using customPointer with GestureDetector/InkWell, set it to false to enable gestures.
When using default pointer set it to default state i.e true.