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52 lines
1.3 KiB
52 lines
1.3 KiB
import 'package:flutter/material.dart';
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class NumberPicker extends StatelessWidget {
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final int value;
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final VoidCallback onUp;
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final VoidCallback onDown;
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final int minValue;
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final int maxValue;
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const NumberPicker({
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Key? key,
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required this.value,
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required this.onUp,
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required this.onDown,
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this.minValue = 0,
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this.maxValue = 100,
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}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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return Row(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.center,
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children: [
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_ConditionalIconButton(
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enabled: value > minValue, onClick: onDown, iconData: Icons.remove),
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Text(value.toString()),
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_ConditionalIconButton(
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enabled: value < maxValue, onClick: onUp, iconData: Icons.add),
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],
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);
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}
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}
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class _ConditionalIconButton extends StatelessWidget {
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final bool enabled;
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final VoidCallback onClick;
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final IconData iconData;
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const _ConditionalIconButton({
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Key? key,
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required this.enabled,
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required this.onClick,
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required this.iconData,
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}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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return IconButton(
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onPressed: enabled ? onClick : null,
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icon: Icon(iconData),
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);
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}
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}
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