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feat: add single select to dialog field #181

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feat: add single select to dialog field #181

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1 change: 1 addition & 0 deletions example/lib/main.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -99,6 +99,7 @@ class _MyHomePageState extends State<MyHomePage> {
// Rounded blue MultiSelectDialogField
//################################################################################################
MultiSelectDialogField(
isSingleSelect: true,
items: _items,
title: Text("Animals"),
selectedColor: Colors.blue,
Expand Down
19 changes: 14 additions & 5 deletions lib/dialog/mult_select_dialog.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -78,6 +78,9 @@ class MultiSelectDialog<T> extends StatefulWidget with MultiSelectActions<T> {
/// Set the color of the check in the checkbox
final Color? checkColor;

/// Enable single choice
final bool? isSingleSelect;

MultiSelectDialog({
required this.items,
required this.initialValue,
Expand All @@ -103,6 +106,7 @@ class MultiSelectDialog<T> extends StatefulWidget with MultiSelectActions<T> {
this.selectedItemsTextStyle,
this.separateSelectedItems = false,
this.checkColor,
this.isSingleSelect,
});

@override
Expand Down Expand Up @@ -154,6 +158,15 @@ class _MultiSelectDialogState<T> extends State<MultiSelectDialog<T>> {
controlAffinity: ListTileControlAffinity.leading,
onChanged: (checked) {
setState(() {
if (widget.isSingleSelect != null) {
if (widget.isSingleSelect!) {
if (_selectedValues.length > 0) {
_selectedValues = widget.onItemCheckedChange(
_selectedValues, item.value, checked!);
}
Navigator.pop(context);
}
}
_selectedValues = widget.onItemCheckedChange(
_selectedValues, item.value, checked!);

Expand Down Expand Up @@ -197,11 +210,7 @@ class _MultiSelectDialogState<T> extends State<MultiSelectDialog<T>> {
),
selected: item.selected,
onSelected: (checked) {
if (checked) {
item.selected = true;
} else {
item.selected = false;
}
item.selected = checked;
setState(() {
_selectedValues = widget.onItemCheckedChange(
_selectedValues, item.value, checked);
Expand Down
14 changes: 11 additions & 3 deletions lib/dialog/multi_select_dialog_field.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -106,6 +106,9 @@ class MultiSelectDialogField<V> extends FormField<List<V>> {
final GlobalKey<FormFieldState>? key;
FormFieldState<List<V>>? state;

/// Enable single choice
final bool? isSingleSelect;

MultiSelectDialogField({
required this.items,
required this.onConfirm,
Expand Down Expand Up @@ -141,6 +144,7 @@ class MultiSelectDialogField<V> extends FormField<List<V>> {
this.initialValue = const [],
this.autovalidateMode = AutovalidateMode.disabled,
this.key,
this.isSingleSelect,
}) : super(
key: key,
onSaved: onSaved,
Expand Down Expand Up @@ -181,7 +185,8 @@ class MultiSelectDialogField<V> extends FormField<List<V>> {
checkColor: checkColor,
isDismissible: isDismissible,
);
return _MultiSelectDialogFieldView<V>._withState(field, state);
return _MultiSelectDialogFieldView<V>._withState(
field, state, isSingleSelect);
});
}

Expand Down Expand Up @@ -216,6 +221,7 @@ class _MultiSelectDialogFieldView<V> extends StatefulWidget {
final TextStyle? searchHintStyle;
final bool separateSelectedItems;
final Color? checkColor;
final bool? isSingleSelect;
final bool isDismissible;
FormFieldState<List<V>>? state;

Expand Down Expand Up @@ -250,11 +256,12 @@ class _MultiSelectDialogFieldView<V> extends StatefulWidget {
this.separateSelectedItems = false,
this.checkColor,
required this.isDismissible,
this.isSingleSelect,
});

/// This constructor allows a FormFieldState to be passed in. Called by MultiSelectDialogField.
_MultiSelectDialogFieldView._withState(
_MultiSelectDialogFieldView<V> field, FormFieldState<List<V>> state)
_MultiSelectDialogFieldView._withState(_MultiSelectDialogFieldView<V> field,
FormFieldState<List<V>> state, this.isSingleSelect)
: items = field.items,
title = field.title,
buttonText = field.buttonText,
Expand Down Expand Up @@ -382,6 +389,7 @@ class __MultiSelectDialogFieldViewState<V>
builder: (ctx) {
return MultiSelectDialog<V>(
checkColor: widget.checkColor,
isSingleSelect: widget.isSingleSelect,
selectedItemsTextStyle: widget.selectedItemsTextStyle,
searchHintStyle: widget.searchHintStyle,
searchTextStyle: widget.searchTextStyle,
Expand Down