checkbox_grouped 2.0.0

flutter widget that grouping checkbox, recuperate the actual selection,support multiple selection

checkbox_grouped

* grouped (checkbox/radioButton)
* customisable grouped checkbox
* grouped chips
* grouped switch
* recuperate the actual selection
* make multiple selection
* dialogGroupedCheckbox
* list of groupedCheckbox
* list of customisable groupedCheckbox
* select/deselect items pragrammatically

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Getting Started

Installing

Add the following to your pubspec.yaml file:

dependencies:
	checkbox_grouped: ^2.0.0

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Simple Usage

Creating a basic SimpleGroupedCheckbox

    SimpleGroupedCheckbox<int>(
            controller: controller,
            itemsTitle: ["1" ,"2","4","5"],
            values: [1,2,4,5],
            groupStyle: GroupStyle(
                  activeColor: Colors.red,
                  itemTitleStyle: TextStyle(
                  fontSize: 13
                 )
               ),
            checkFirstElement: false,
    )

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Declare GroupController to get selection and enabled/disabled Items

GroupController controller = GroupController();

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GroupController

Properties	Description
isMultipleSelection	(bool) enable multiple selection in grouped checkbox (default:false).
initSelectedItem	(List) A Initialize list of values that will be selected in grouped.

Get current selection

final selectedItems = controller.selectedItem;

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enable items

    controller.enableAll();

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disable all items

    controller.disableAll();

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enabled items

controller.enabledItemsByValues(List<T> values); 

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---

controller.enabledItemsByTitles(List<String> itemsTitles); 

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disable item

controller.disabledItemsByValues(List<T> values);

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controller.disabledItemsByTitles(List<String> items)

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listener to changed values

listener will be removed automatically when widget call dispose

controller.listen((v) {
      print("$v");
    });

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select/selectValues

select one item in single selection or multiple selection

selectValues work only in group when isMultiSelection is true

controller.select(value);
or
controller.selectValues([value]);

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selectAll/selectValues

select all or some items in multiple selection group

controller.selectAll();
or
controller.selectValues([values]);

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deselectAll/deselectValues

deselect all or some items in multiple selection group

controller.deselectAll();
or
controller.deselectValues([values]);

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NOTICE

• those method disabledItems and enabledItems has been removed
• if you are using complex object in values , you need to implement operator == and hashcode

SimpleGroupedCheckbox

Properties	Description
controller	(required) Group Controller to recuperate selectionItems and disable or enableItems.
activeColor	(deprecated) The color to use when a CheckBox is checked.
itemsTitle	(required) A list of strings that describes each checkbox button. Each label must be distinct.
itemsSubTitle	A list of strings that describes second Text.
onItemSelected	Callback fire when the user make selection
disableItems	Specifies which item should be disabled. The strings passed to this must match the Titles
values	(required) Values contains in each element.
checkFirstElement	make first element in list checked.
isExpandableTitle	enable group checkbox to be expandable .
groupTitle	Text title for group checkbox.
groupTitleStyle	(deprecated) TextStyle of title for group checkbox.
helperGroupTitle	(bool) hide/show checkbox in title to help all selection or de-selection,use it when you want to disable checkbox in groupTitle default:true .
groupTitleAlignment	(Alignment) alignment of group title in group checkbox.
groupStyle	(GroupStyle) the style that should be applied on GroupedTitle,ItemTile,SubTitle.

Customisable Checkbox Grouped

Creating a basic CustomGroupedCheckbox

    CustomGroupedCheckbox<int>(
            controller:customController,
            groupTitle: "Custom GroupedCheckbox",
            itemBuilder: (ctx,index,value,isDisabled){
            return Card(
                child: Row(
                    children: <Widget>[
                        Expanded(
                            child: Align(
                                alignment: Alignment.centerLeft,
                                child: Text("$index"),
                            ),
                        ),
                        Opacity(
                              opacity: v?1:0,
                              child: Icon(Icons.check,
                                color: Colors.green,
                                size: 24,
                              ),
                         ),
                      ],
                   ),
                );
            },
            itemCount: 10,
            values: List<int>.generate(10, (i)=>i),
        )

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Declare CustomGroupController to get selection ,enabled/disable items

 CustomGroupController controller = CustomGroupController();

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Get current selection

final selectedItem = controller.selectedItem;

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enable items

    controller.enabledItems([value]);

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disable items

    controller.disabledItems([value]);

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listen to changed values

controller.listen((value){
 print(value);
})

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CustomGroupedCheckbox

Properties	Description
controller	(required) Custom Group Controller to recuperate selectionItems and disable or enableItems.
groupTitle	widget title for group checkbox.
itemBuilder	(required) Called to build children.
values	(required) Values contains in each element.
disableItems	(List) values that will be disabled
itemExtent	The extent the children are forced to have in the main axis
isScroll	(bool) To make list of item scrollable

CustomGroupedCheckbox.grid

Properties	Description
controller	(required) Custom Group Controller to recuperate selectionItems and disable or enableItems.
groupTitle	widget title for group checkbox.
itemBuilder	(required) Called to build children.
values	(required) Values contains in each element.
isScroll	(bool) To indicate that the list of children scrollable
gridDelegate	(SliverGridDelegate) a delegate that controls the layout of the children

Chip grouped Usage

Creating a basic SimpleGroupedChips

SimpleGroupedChips<int>(
                    controller: controller,
                    values: [1,2,3,4,5,6,7],
                    itemTitle: ["1" ,"2","4","5","6","7"],
                    chipGroupStyle: ChipGroupStyle.minimize(
                         backgroundColorItem: Colors.red[400],
                         itemTitleStyle: TextStyle(
                         fontSize: 14,
                      ),
                    ),
                  )

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Declare GroupController to get selection and enabled/disabled Items

GroupController controller = GroupController();

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GroupController

Properties	Description
isMultipleSelection	(bool) enable multiple selection in grouped checkbox (default:false).
initSelectedItem	(List) A Initialize list of values that will be selected in grouped.
chipGroupStyle	(ChipGroupStyle) A Initialize list of values that will be selected in grouped.

Get current selection

final selectedItems = controller.selectedItem;

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enabled items

controller.enabledItemsByValues(List<T> values); 

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---

controller.enabledItemsByTitles(List<String> itemsTitles); 

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disable item

controller.disabledItemsByValues(List<T> values);

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controller.disabledItemsByTitles(List<String> items)

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SimpleGroupedChip

Properties	Description
controller	(required) controller to recuperate selectionItems and disable or enableItems.
itemsTitle	(required) A list of strings that describes each chip button. Each label must be distinct.
disabledItems	Specifies which item should be disabled. The strings passed to this must match the Titles
values	(required) Values contains in each element.
onItemSelected	Callback when users make selection or deselection
isScrolling	enable horizontal scrolling.
chipGroupStyle	(ChipGroupStyle) the style that uses to customize item chip

Switch grouped Usage

Creating a basic SimpleGroupedSwitch

SimpleGroupedSwitch<int>(
                    controller: controller,
                    values: [1,2,4,5],
                    itemsTitle: ["1 " ,"2 ","4 ","5 ","6","7"],
                    groupStyle: SwitchGroupStyle(
                        itemTitleStyle: TextStyle(
                          fontSize: 16,
                          color: Colors.blue,
                       ),
                     activeColor: Colors.red,
                  ),  
             )

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Declare GroupController to get selection and enabled/disabled Items

GroupController controller = GroupController();

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GroupController

Properties	Description
isMultipleSelection	(bool) enable multiple selection in grouped checkbox (default:false).
initSelectedItem	(List) A Initialize list of values that will be selected in grouped.

Get current selection

final selectedItems = controller.selectedItem;

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enabled items

controller.enabledItemsByValues(List<T> values); 

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---

controller.enabledItemsByTitles(List<String> itemsTitles); 

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disable item

controller.disabledItemsByValues(List<T> values);

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controller.disabledItemsByTitles(List<String> items)

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SimpleGroupedSwitch

Properties	Description
controller	(required) Group Controller to recuperate selectionItems and disable or enableItems.
itemsTitle	(required) A list of strings that describes each chip button. Each label must be distinct.
values	(required) Values contains in each element.
disableItems	Specifies which item should be disabled. The value passed to this must match the values list
onItemSelected	Call when users make selection or deselection
groupStyle	(SwitchGroupStyle) the style that will customize text,switch

showDialogGroupedCheckbox

display groupedCheckbox inside dialog return values selected

Creating a basic showDialogGroupedCheckbox

showDialogGroupedCheckbox(
                        context: context,
                        cancelDialogText: "cancel",
                        isMultiSelection: true,
                        itemsTitle: List.generate(15, (index) => "$index"),
                        submitDialogText: "select",
                        dialogTitle:Text("example dialog") ,
                        values: List.generate(15, (index) => index)
                      )

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showDialogGroupedCheckbox

Properties	Description
dialogTitle	(required) Text Widget that describe Title of dialog.
itemsTitle	(required) Values contains in each element.
values	(required) list of values.
initialSelectedValues	list of initial values that you want to be selected.
isDismissible	enable multiple selection.
cancelDialogText	(string) label for cancelButton.
submitDialogText	(string) label for submitButton.
isMultiSelection	enable multiple selection.

ListGroupedCheckbox

display list of groupedCheckbox return all values selected

Declare ListGroupController to get all item selected or get item selected by group index

ListGroupController controller = ListGroupController();

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ListGroupController

Properties	Description
isMultipleSelectionPerGroup	(List
initSelectedValues	(List) A Initialize list of values on each group of checkbox that will be selected in group.

Get current selection

• get all selection

final selectedItems = controller.allSelectedItems;

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• get all selection by group

final selectedItems = controller.selectedItemsByGroupIndex(indexGroup);

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enable items

    controller.enableAll(int indexGroup);

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disable all items

    controller.disableAll(int indexGroup);

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enabled items

controller.enabledItemsByValues(int indexGroup,List<T> values); 

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---

controller.enabledItemsByTitles(int indexGroup,List<String> itemsTitles); 

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disable item

controller.disabledItemsByValues(int indexGroup,List<T> values);

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controller.disabledItemsByTitles(int indexGroup,List<String> items)

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Creating a basic ListGroupedCheckbox

                ListGroupedCheckbox(
                        controller: listController,
                        groupTitles: List.generate(3, (index) => "groupe $index"),
                        values: List.generate(
                          3,
                          (i) =>
                              List.generate(5, (j) => "${(i + Random().nextInt(100)) * j}"),
                        ),
                        titles: List.generate(
                          3,
                          (i) => List.generate(5, (j) => "Title:$i-$j"),
                        ),
                        mapItemGroupedType: {
                          1: GroupedType.Chips,
                        },
                      )

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ListGroupedCheckbox

Properties	Description
controller	(required) manage the ListGroupedCheckbox.
groupTitles	(required)Text title for group checkbox in each groupedCheckbox.
titles	(required) A list of list of strings that describes each checkbox button. Each label must be distinct in groupedCheckbox.
values	(required) Values contains in each element in each groupedCheckbox.
subTitles	A list of list strings that describes second Text in each groupedChckbox.
isScrollable	(bool) make the parent widget scrollable or disable it (default:true).
onSelectedGroupChanged	CallBack to get all selected items when users make select new items or deselect items
disabledValues	A nested list of string ,specifies which item should be disabled in each groupedCheckbox. The strings passed to this must match the Titles
titleGroupedAlignment	(Alignment) align text title of each group of checkbox
titleGroupedTextStyle	(TextStyle) style text title of each group
mapItemGroupedType	(Map) define type of each group can be chips/switch/(checkbox or radio)

---

##ListCustomGroupedCheckbox

display list of groupedCheckbox return all values selected

Declare ListGroupController to get all item selected or get item selected by group index

ListGroupController controller = ListGroupController();

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ListCustomGroupController

Properties	Description
isMultipleSelectionPerGroup	(List
initSelectedValuesByGroup	(List) A Initialize list of values on each group of checkbox that will be selected in group.

Get current selection

• get all selection

1. list

final selectedItems = controller.allSelectedItems;

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2. map

final selectedItems = controller.mapSelectedItems;

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• get all selection by group

final selectedItems = controller.selectedItemsByGroupIndex(indexGroup);

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ListCustomGroupedCheckbox

Properties	Description
controller	(required) manage the ListGroupedCheckbox.
children	(required) list of CustomIndexedWidgetBuilder to return widget of items for each group,should be non null widgets
groupTitles	A list of String for group checkbox in each CustomGrouped.
groupTitlesWidget	A list of list of widgets that describes custom Title for each group.
listValuesByGroup	(required) Values contains in each element in each CustomGroupedCheckbox.
isScrollable	(bool) make the parent widget scrollable or disable it (default:true).
onSelectedGroupChanged	CallBack to get all selected items when one of item hit it make select new items or deselect items
titleGroupedAlignment	(Alignment) align text title of each group
titleGroupedTextStyle	(TextStyle) style text for title of each group

basic example

final controller =
ListCustomGroupController(isMultipleSelectionPerGroup: [true, false]);
final data = [
  List<_User>.generate(
    10,
        (i) => _User(
      name: faker.person.name(),
      email: faker.internet.email(),
    ),
  ),
  List<String>.generate(
    10,
        (i) => faker.person.name(),
  )
]
ListCustomGroupedCheckbox(
      controller: controller,
      onSelectedGroupChanged: (values) {
        print(values);
      },
      isScrollable: true,
      titleGroupedAlignment: Alignment.centerLeft,
      groupTitles: ["Users", "Names"],
      children: [
        CustomIndexedWidgetBuilder(
            itemBuilder: (ctx, index, selected, isDisabled) {
          return Card(
            margin: EdgeInsets.only(
              top: 5.0,
              bottom: 5.0,
            ),
            child: ListTile(
              tileColor: selected ? Colors.green[300] : Colors.white,
              title: Text(
                (data[0][index] as _User).name,
              ),
              subtitle: Text(
                (data[0][index] as _User).email,
              ),
              trailing: Opacity(
                opacity: selected ? 1 : 0,
                child: Icon(
                  Icons.check,
                  color: Colors.white,
                  size: 24,
                ),
              ),
            ),
          );
        }),
        CustomGridIndexedWidgetBuilder(
            itemBuilder: (ctx, index, selected, isDisabled) {
              return Card(
                color: selected ? Colors.green[300] : Colors.white,
                shape: RoundedRectangleBorder(
                  borderRadius: BorderRadius.circular(
                    12.0,
                  ),
                ),
                margin: EdgeInsets.only(
                  top: 5.0,
                  bottom: 5.0,
                ),
                child: Stack(
                  children: [
                    Center(
                      child: Text(
                        data[1][index],
                        maxLines: 3,
                        overflow: TextOverflow.fade,
                      ),
                    ),
                    Positioned(
                      top: 5,
                      right: 8,
                      child: Opacity(
                        opacity: selected ? 1 : 0,
                        child: Icon(
                          Icons.check,
                          color: Colors.white,
                          size: 24,
                        ),
                      ),
                    ),
                  ],
                ),
              );
            },
            gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
                      crossAxisCount: 3, 
                      crossAxisSpacing: 5.0,
                  )
              ),
      ],
      listValuesByGroup: data,
    )

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MIT Licences