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Select All #17

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cf412a1
Update multiselect_formfield for select all
bdemirpolat Jun 18, 2020
73f1ef7
Update multiselect_formfield for select all
bdemirpolat Jun 18, 2020
4b62960
Changed wrong import
bdemirpolat Jun 18, 2020
c90b331
Minor fix
bdemirpolat Jun 23, 2020
353ddf6
Merge branch 'master' into master
bdemirpolat Sep 30, 2020
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41 changes: 39 additions & 2 deletions lib/multiselect_dialog.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,9 @@ class MultiSelectDialog<V> extends StatefulWidget {
final Widget title;
final String okButtonLabel;
final String cancelButtonLabel;
final bool showSelectAll;
final String selectAllText;
bool selectAllState = false;
final TextStyle labelStyle;
final ShapeBorder dialogShapeBorder;
final Color checkBoxCheckColor;
Expand All @@ -28,9 +31,12 @@ class MultiSelectDialog<V> extends StatefulWidget {
this.labelStyle = const TextStyle(),
this.dialogShapeBorder,
this.checkBoxActiveColor,
this.checkBoxCheckColor})
this.checkBoxCheckColor,
this.showSelectAll,
this.selectAllText})
: super(key: key);


@override
State<StatefulWidget> createState() => _MultiSelectDialogState<V>();
}
Expand All @@ -45,6 +51,18 @@ class _MultiSelectDialogState<V> extends State<MultiSelectDialog<V>> {
}
}

void _onSelectAllCheckedChange(bool checked) {
setState(() {
widget.selectAllState = checked;
if (checked) {
_selectedValues.removeRange(0, _selectedValues.length);
_selectedValues.addAll(widget.items.map((e) => e.value));
} else {
_selectedValues.removeRange(0, _selectedValues.length);
}
});
}

void _onItemCheckedChange(V itemValue, bool checked) {
setState(() {
if (checked) {
Expand Down Expand Up @@ -73,7 +91,7 @@ class _MultiSelectDialogState<V> extends State<MultiSelectDialog<V>> {
child: ListTileTheme(
contentPadding: EdgeInsets.fromLTRB(14.0, 0.0, 24.0, 0.0),
child: ListBody(
children: widget.items.map(_buildItem).toList(),
children: _buildList(),
),
),
),
Expand All @@ -90,6 +108,16 @@ class _MultiSelectDialogState<V> extends State<MultiSelectDialog<V>> {
);
}

List<Widget> _buildList() {
List<Widget> listBody = [];
if (widget.showSelectAll) {
listBody.add(
_buildSelectAllItem(widget.selectAllState, widget.selectAllText));
}
listBody.addAll(widget.items.map(_buildItem));
return listBody;
}

Widget _buildItem(MultiSelectDialogItem<V> item) {
final checked = _selectedValues.contains(item.value);
return CheckboxListTile(
Expand All @@ -104,4 +132,13 @@ class _MultiSelectDialogState<V> extends State<MultiSelectDialog<V>> {
onChanged: (checked) => _onItemCheckedChange(item.value, checked),
);
}

Widget _buildSelectAllItem(checked, title) {
return CheckboxListTile(
value: checked,
title: Text(title),
controlAffinity: ListTileControlAffinity.leading,
onChanged: (checked) => _onSelectAllCheckedChange(checked),
);
}
}
8 changes: 8 additions & 0 deletions lib/multiselect_formfield.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,8 @@ class MultiSelectFormField extends FormField<dynamic> {
final ShapeBorder dialogShapeBorder;
final Color checkBoxCheckColor;
final Color checkBoxActiveColor;
final bool showSelectAll;
final String selectAllText;

MultiSelectFormField({
FormFieldSetter<dynamic> onSaved,
Expand All @@ -47,6 +49,8 @@ class MultiSelectFormField extends FormField<dynamic> {
this.cancelButtonLabel = 'CANCEL',
this.fillColor,
this.border,
this.showSelectAll = true,
this.selectAllText = "Select All",
this.trailing,
this.chipLabelStyle,
this.chipBackGroundColor,
Expand All @@ -71,6 +75,7 @@ class MultiSelectFormField extends FormField<dynamic> {
(itm) => itm[valueField] == item,
orElse: () => null);
selectedOptions.add(Chip(

labelStyle: chipLabelStyle,
backgroundColor: chipBackGroundColor,
label: Text(
Expand Down Expand Up @@ -107,6 +112,8 @@ class MultiSelectFormField extends FormField<dynamic> {
cancelButtonLabel: cancelButtonLabel,
items: items,
initialSelectedValues: initialSelected,
showSelectAll: showSelectAll,
selectAllText: selectAllText,
labelStyle: dialogTextStyle,
dialogShapeBorder: dialogShapeBorder,
checkBoxActiveColor: checkBoxActiveColor,
Expand Down Expand Up @@ -140,6 +147,7 @@ class MultiSelectFormField extends FormField<dynamic> {
Expanded(
child: title,
),

required
? Padding(
padding: EdgeInsets.only(top: 5, right: 5),
Expand Down