60 lines
1.8 KiB
Dart
60 lines
1.8 KiB
Dart
import 'package:flutter/material.dart';
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/// Use Icon as checkbox
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class CheckboxIconFormField extends FormField<bool> {
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CheckboxIconFormField({
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Key? key,
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BuildContext? context,
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FormFieldSetter<bool>? onSaved,
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bool initialValue = false,
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ValueChanged<bool>? onChanged,
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AutovalidateMode? autovalidateMode,
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bool enabled = true,
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IconData trueIcon = Icons.check,
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IconData falseIcon = Icons.check_box_outline_blank,
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Color? trueIconColor,
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Color? falseIconColor,
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Color? disabledColor,
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double padding = 24.0,
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double? iconSize,
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}) : super(
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key: key,
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onSaved: onSaved,
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initialValue: initialValue,
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autovalidateMode: autovalidateMode,
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builder: (FormFieldState<bool> state) {
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trueIconColor ??= (context == null
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? null
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: Theme.of(context).colorScheme.secondary);
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return Padding(
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padding: EdgeInsets.all(padding),
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child: state.value!
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? _createTappableIcon(state, enabled, trueIcon, onChanged,
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trueIconColor, disabledColor, iconSize)
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: _createTappableIcon(state, enabled, falseIcon, onChanged,
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falseIconColor, disabledColor, iconSize));
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},
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);
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static Widget _createTappableIcon(
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FormFieldState<bool> state,
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bool enabled,
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IconData icon,
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ValueChanged<bool>? onChanged,
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Color? iconColor,
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Color? disabledColor,
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double? iconSize,
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) {
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return IconButton(
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onPressed: enabled
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? () {
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state.didChange(!state.value!);
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if (onChanged != null) onChanged(state.value!);
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}
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: null,
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icon: Icon(icon,
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color: enabled ? iconColor : disabledColor, size: iconSize),
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);
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}
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}
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