69 lines
1.7 KiB
Dart
69 lines
1.7 KiB
Dart
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import 'package:flutter/material.dart';
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import 'package:flutter/widgets.dart';
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class EnumParam<T> extends StatelessWidget {
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final String title;
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final String? description;
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final T initial;
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final List<T> values;
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final Function(T v) onChanged;
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final Function(T v)? getName;
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EnumParam(
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this.title,
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this.values,
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this.initial,
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this.onChanged, {
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this.description,
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this.getName,
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});
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String _defaultName(T v) => ((v is Enum) ? v.name : v.toString());
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@override
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Widget build(BuildContext context) {
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T value = initial;
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return Padding(
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padding: const EdgeInsets.all(8.0),
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child: Row(
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children: [
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Column(
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mainAxisAlignment: MainAxisAlignment.center,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(title),
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if (description != null)
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Text(
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description!,
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style: TextStyle(fontSize: 12),
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)
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],
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),
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SizedBox(
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width: 2,
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),
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Expanded(
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child: StatefulBuilder(builder: (context, setState) {
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return DropdownButton<T>(
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value: value,
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items: values
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.map(
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(v) => DropdownMenuItem(
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child: Text(getName?.call(v) ?? _defaultName(v)),
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value: v,
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),
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)
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.toList(),
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onChanged: (v) => setState(() {
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value = v!;
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onChanged(v);
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}),
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);
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}),
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)
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],
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),
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);
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}
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}
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