75 lines
1.9 KiB
Dart
75 lines
1.9 KiB
Dart
import 'package:flutter/material.dart';
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/// Settings row with a trailing [DropdownButton]. Each option renders as an
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/// icon + label row; the currently selected option is disabled in the menu,
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/// matching the settings styling. [onChanged] receives the picked (non-null)
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/// value.
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class SettingsDropdownTile<T> extends StatelessWidget {
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final IconData icon;
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final String title;
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final T value;
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final List<T> options;
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final IconData Function(T) optionIcon;
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final String Function(T) optionLabel;
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final ValueChanged<T> onChanged;
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const SettingsDropdownTile({
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required this.icon,
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required this.title,
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required this.value,
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required this.options,
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required this.optionIcon,
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required this.optionLabel,
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required this.onChanged,
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super.key,
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});
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@override
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Widget build(BuildContext context) {
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return ListTile(
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leading: Icon(icon),
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title: Text(title),
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trailing: DropdownButton<T>(
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value: value,
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icon: const Icon(Icons.arrow_drop_down),
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alignment: AlignmentDirectional.centerEnd,
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selectedItemBuilder: (context) => options
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.map(
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(e) => Align(
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alignment: AlignmentDirectional.centerEnd,
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child: _optionRow(e),
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),
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)
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.toList(),
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items: options
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.map(
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(e) => DropdownMenuItem<T>(
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value: e,
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enabled: e != value,
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child: _optionRow(e),
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),
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)
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.toList(),
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onChanged: (e) {
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if (e != null) onChanged(e);
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},
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),
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);
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}
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Widget _optionRow(T e) => Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(optionIcon(e)),
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const SizedBox(width: 10),
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Flexible(
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child: Text(
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optionLabel(e),
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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),
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),
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],
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);
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}
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