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Simple flutter widget from Bootstrap v5 component, including responsive grid layout based on bootstrap grid system

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Bootstrap's Flutter #

Simple flutter widget from Bootstrap v5 component, including responsive grid layout based on bootstrap grid system

Alt text Alt text Alt text

Avaiable Components #

Utilities #

This plugin helps you to migrate from html based to dart in creating web interfaces. More specifically for those who are already able to use bootstrap

Getting Started #

Add the dependency in pubspec.yaml:

dependencies:
  ...
  bs_flutter: any

Responsive Grid / Grid System #

Example: example_grid.dart

Grid system is very important when you create some web application. Especially for create responsive layout. This plugin is help to solve it

To create responsive layout you must using widget BsRow and BsCol or if in bootstrap use class="row" and class="col-*"

Alt text Alt text Alt text Alt text

Create row container of grid system:

BsRow(
  gutter: EdgeInsets.only(left: 10.0, right: 10.0, top: 5.0, bottom: 5.0),
  children: <BsCol>[
    // ...
  ]
);

After that you can add column:

BsRow(
//...
    children: <BsCol>[
      BsCol(
        decoration: BoxDecoration(
          border: Border.all(color: Colors.black),
        ),
        padding: EdgeInsets.all(20.0),
        sizes: ColScreen(sm: Col.col_12, lg: Col.col_6),
        child: Center(child: Text('col-sm-12 col-lg-6')),
      ),
      BsCol(
        decoration: BoxDecoration(
          border: Border.all(color: Colors.black),
        ),
        visibility: BsVisibility.hiddenMd,
        padding: EdgeInsets.all(20.0),
        sizes: ColScreen(sm: Col.col_12, lg: Col.col_6),
        child: Center(child: Text('col-sm-12 col-lg-6 col-hidden-md')),
      ),
      BsCol(
        decoration: BoxDecoration(border: Border.all(color: Colors.black)),
        padding: EdgeInsets.all(20.0),
        sizes: ColScreen(sm: Col.col_12, md: Col.col_12, lg: Col.col_6),
        order: ColOrder(md: 1),
        child: Center(child: Text('col-sm-12 col-md-12 col-md-6 col-order-lg-1')),
      ),
      BsCol(
        decoration: BoxDecoration(border: Border.all(color: Colors.black)),
        padding: EdgeInsets.only(top: 10.0, bottom: 10.0),
        sizes: ColScreen(md: Col.col_6),
        child: BsRow(
          children: [
            BsCol(
              decoration: BoxDecoration(
                color: Colors.white,
                border: Border.all(color: Colors.black),
              ),
              padding: EdgeInsets.all(10.0),
              sizes: ColScreen(md: Col.col_4),
              child: Center(child: Text('Nested col-md-4')),
            ),
            BsCol(
              decoration: BoxDecoration(
                color: Colors.white,
                border: Border.all(color: Colors.black),
              ),
              padding: EdgeInsets.all(10.0),
              sizes: ColScreen(md: Col.col_4),
              offset: ColScreen(lg: Col.col_4),
              child: Center(child:Text('Nested col-md-4 col-offset-lg-4')),
            ),
          ],
        ),
      ),
    ] 
// ...
)

Note #

  • Properties sizes in BsCol is has default value Col.col_12 or 100% of screen width
  • If need to ordering column use properties order with value BsScreen
  • If need to custom offset of column use properties offet with value BsScreen
  • BsVisibility.hiddenMd will hide widget in max screen medium or < 768 px, above it will show

Bootstrap Flutter Buttons #

Example: example_buttons.dart

Alt text

We have 15 button style and 3 button size, but you can create custom size using BsButtonSize and custom style using BsButtonStyle

  static const BsButtonStyle primary = BsButtonStyle(
    color: Colors.white,
    borderColor: BsColor.primary,
    backgroundColor: BsColor.primary,
    borderRadius: BorderRadius.all(Radius.circular(3.0))
  );

  static const BsButtonSize btnIconSm = BsButtonSize(
    iconSize: 12.0,
    padding: EdgeInsets.only(left: 10.0, right: 10.0, top: 10.0, bottom: 10.0),
    minimumSize: Size(30.0, 30.0),
  );

To create some button use BsButton

// ...
  BsButton(
    margin: EdgeInsets.only(right: 10.0, bottom: 10.0),
    onPressed: () {},
    style: BsButtonStyle.primary,
    size: BsButtonSize.btnIconMd,
    prefixIcon: Icons.check,
  ),
// ...

You can create custom size using BsBadgeSize and custom style using BsBadgeStyle

  static const BsBadgeStyle primary = BsBadgeStyle(
    color: Colors.white,
    backgroundColor: BsColor.primary,
  );

  static const BsBadgeSize rounded = BsBadgeSize(
      margin: EdgeInsets.only(right: 5.0, bottom: 5.0),
      padding: EdgeInsets.only(left: 10.0, right: 10.0, top: 5.0, bottom: 5.0),
      fontSize: 10.0,
      borderRadius: BorderRadius.all(Radius.circular(100.0))
  );

To create badge use BsBadge, BsBadge is available use in BsButton

// ...
  BsBadge(
    style: BsBadgeStyle.primary,
    size: BsBadgeSize.rounded,
    child: Text('Primary'),
  ),
// ...

Default dropdown button

Alt text

// ...
    BsDropdownButton(
      margin: EdgeInsets.only(right: 5.0),
      toggleMenu: (_) => BsButton(
        onPressed: () => _.toggle(),
        style: BsButtonStyle.primary,
        suffixIcon: Icons.arrow_drop_down,
        label: Text('Primary'),
      ),
      dropdownMenu: BsDropdownMenu(
        children: [
          BsDropdownHeader(child: Text('Dropdown Header')),
          BsDropdownItem(child: Text('Action')),
          BsDropdownItem(child: Text('Another Action')),
          BsDropdownItem(child: Text('Something else here')),
          BsDropdownItem(child: Text('Separate link')),
        ],
      ),
    )
// ...

To configure maximum/minimum width and height, you can use property dropdownMenuSize the default of minimum height and width is 150

    BsDropdownButton(
      // ...
      dropdownMenuSize: BsDropdownMenuSize(
        minWidth: 150,
        maxWidth: 300,
        minHeight: 150,
        maxHeight: 300
      ),
      // ...
    )

If you want to create dropdown in left/right side of button, you can use property dropdownDirection


  BsDropdownButton(
    // ...
    dropdownDirection: Axis.horizontal,
    // ...
  ),

If you want to customize dropdown style, you can use property dropdownMenuStyle

  BsDropdownButton(
    // ...
    dropdownMenuStyle: BsDropdownMenuStyle(
      backgroundColor: Colors.red,
      boxShadow: [
        BoxShadow(
          color: Color(0xffd9d9d9),
          spreadRadius: 2.0,
          blurRadius: 5.0
        )
      ]
    ),
    // ...
  ),

You can also set dropdown item to active and disabled If you want to customize active or disabled style, you can use property activeStyle, activeTextStyle, disabledStyle and disabledTextStyle

  BsDropdownButton(
    // ...
    dropdownMenu: BsDropdownMenu(
      children: [
        BsDropdownItem(
          child: Text('Action'), 
          active: true, 
          activeStyle: ButtonStyle(),
          activeTextStyle: TextStyle(),
        ),
        BsDropdownItem(
          child: Text('Another Action'), 
          disabled: true, 
          disabledStyle: ButtonStyle(),
          disabledTextStyle: TextStyle(),
        ),
        BsDropdownItem(child: Text('Something else here')),
        BsDropdownDivider(),
        BsDropdownItem(child: Text('Separate link')),
      ],
    )
  // ...
  ),

Bootstrap Flutter Input Text #

Example: example_inputtext.dart

Alt text

Small Input Text with Outline Border

// ...
  BsInput(
    size: BsInputSize.sm,
    hintText: 'Small input',
    controller: TextEditingController(),
    validators: [
      BsValidator.required
    ],
  ),
// ...

Small Input Text with Border Bottom

//...
  BsInput(
    style: BsInputStyle.outlineBottom,
    size: BsInputSize.outlineBottomSm,
    hintTextLabel: 'Small input',
    controller: TextEditingController(),
  ),
//...

BsValidator is custom validator, you can create yours validator using BsValidator Example:

  static BsValidator get required => BsValidator(
    validator: (value) {
      String valueValidate = value.toString().trim();
      if(valueValidate.isEmpty) return "Field tidak boleh kosong";

      return null;
    },
  );

validator properties will call when form on validating

Bootstrap Flutter Alert #

Example: example_alert.dart

Alt text

Alert success

// ...
  BsAlert(
    closeButton: true,
    margin: EdgeInsets.only(bottom: 10.0),
    child: Text('Alert Primary'),
  ),
// ...

Alert with Heading

// ...
  BsAlert(
    closeButton: true,
    margin: EdgeInsets.only(bottom: 10.0),
    style: BsAlertStyle.success,
    heading: Text('Hello World'),
    child: Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Text('Alert Dark'),
      ],
    ),
  )
// ...

You can create custom alert style using BsAlertStyle and alert color using BsAlertColor

  static const BsAlertColor primary = BsAlertColor(
    color: Color(0xff084298),
    backgroundColor: Color(0xffcfe2ff),
    borderColor: Color(0xffb6d4fe),
  );

  static const BsAlertStyle primary = BsAlertStyle(
    color: BsAlertColor.primary,
    borderRadius: BorderRadius.all(Radius.circular(5.0)),
  );

Bootstrap Flutter Modals #

Example: example_modal.dart

Alt text Alt text

Modal will be show using showDialog, because BsModal is a Dialog widget

// ...
  BsButton(
    style: BsButtonStyle.primary,
    margin: EdgeInsets.only(right: 5.0, bottom: 10.0),
    label: Text('Centered Small Modal with No Radius'),
    onPressed: () => showDialog(context: context, builder: (context) => BsModal(
      context: context,
      dialog: BsModalDialog(
        size: BsModalSize.sm,
        crossAxisAlignment: crossAxisAlignment.center,
        child: BsModalContent(
          decoration: BoxDecoration(
            color: Colors.white,
          ),
          children: [
            BsModalContainer(title: Text('Content'), closeButton: true),
            BsModalContainer(
              child: Column(
                  children: [
                    Text('Content')
                  ]
              ),
            ),
            BsModalContainer(
              crossAxisAlignment: CrossAxisAlignment.end,
              actions: [
                BsButton(
                  style: BsButtonStyle.danger,
                  label: Text('Close Modal'),
                  prefixIcon: Icons.close,
                  onPressed: () {
                    Navigator.pop(context);
                  },
                )
              ],
            )
          ],
        ),
      ),
    )),
  )
// ...

Note #

  • BsModalDialog is backdrop layout
  • BsModalContent is content from modal
  • BsModalContainer is children from BsModalContent
  • Change size properties to change modal size
  • BsModalContainer can be use as modal-header, modal-body and modal-footer
  • To set BsModalContent to centered, you can modify crossAxisAlignment on BsModalDialog properties

Bootstrap Flutter Card #

Example: example_card.dart

Alt text

Create box card:

// ...
  BsCard(
    children: [
      BsCardContainer(title: Text('Box Card')),
      BsCardContainer(child: Container(
        child: Text('Box Card Content'),
      )),
      BsCardContainer(actions: [
        BsButton(
          onPressed: () {},
          style: BsButtonStyle.primary,
          prefixIcon: Icons.block,
          label: Text('Primary'),
        )
      ])
    ],
  )
// ...

Note #

  • To custom card style use BsCardContainerStyle or BsCardStyle

Bootstrap Flutter Select Box #

Example: example_selectbox.dart

Alt text

To create a select box you need to import:

import 'package:bs_flutter_selectbox/bs_flutter_selectbox.dart';

After create controller:

// ...
  BsSelectBoxController _select1 = BsSelectBoxController(
    options: [
      BsSelectBoxOption(value: 1, text: Text('1')),
      BsSelectBoxOption(value: 2, text: Text('2')),
      BsSelectBoxOption(value: 3, text: Text('3')),
    ]
  );
// ...

After all is done copy the code below:

// ...
  BsSelectBox(
    hintText: 'Pilih salah satu',
    selectBoxController: _select1,
  ),
// ...

Alt text

If you need to customize size and style, use properties style and size. And create your custom size with class BsSelectBoxSize or BsSelectBoxStyle to custom style

  static const BsSelectBoxSize customSize = BsSelectBoxSize(
    fontSize: 14.0,
    optionFontSize: 14.0,
    searchInputFontSize: 14.0,
    labelX: 15.0,
    labelY: 13.0,
    transitionLabelX: -15.0,
    transitionLabelY: 5.0,
    padding: EdgeInsets.only(left: 15.0, right: 15.0, top: 12.0, bottom: 12.0)
  );

  static const BsSelectBoxStyle outline = BsSelectBoxStyle(
    borderRadius: BorderRadius.all(Radius.circular(5.0))
  );

Note #

  • labelX and labelY is used to set label position if using hintTextLabel
  • transitionLabelX and transitionLabelY is used to set label position if using hintTextLabel when have selected value
  • BsSelectBoxStyle have properties borderRadius, color, placeholderColor, selectedBackgroundColor, selectedColor, disabledBackgroundColor, backgroundColor, borderColor, fontSize, arrowIcon

Select box using hintTextLabel

// ...
  BsSelectBox(
    hintTextLabel: 'Pilih salah satu',
    selectBoxController: _select1,
  ),
// ...

Alt text

To create a select box with multiple allowed set multiple properties in BsSelectBoxController to true:

// ...
  BsSelectBoxController _select2 = BsSelectBoxController(
    multiple: true,
    options: [
      BsSelectBoxOption(value: 1, text: Text('1')),
      BsSelectBoxOption(value: 2, text: Text('2')),
      BsSelectBoxOption(value: 3, text: Text('3')),
      BsSelectBoxOption(value: 4, text: Text('4')),
      BsSelectBoxOption(value: 5, text: Text('5')),
      BsSelectBoxOption(value: 6, text: Text('6')),
    ]
  );
// ...

Note #

  • To get selected value use getSelected or getSelectedAll
  • If you need returned string use getSelectedAsString, it will be returned string value with , separator
  • To set selected value use setSelected or setSelectedAll

Alt text

To create a select box with server side data, use serverSide property

  BsSelectBox(
    hintText: 'Pilih salah satu',
    searchable: true,
    selectBoxController: _select3,
    serverSide: selectApi,
  )

Note #

  • To enable searchable option, set searchable property true
  • serverSide property need returned Future<BsSelectBoxResponse>

selectApi function

// ...
  Future<BsSelectBoxResponse> selectApi(Map<String, String> params) async {
    Uri url = Uri.http('localhost', 'api-json.php', params);
    Response response = await http.get(url);
    if(response.statusCode == 200) {
      List json = convert.jsonDecode(response.body);
      return BsSelectBoxResponse.createFromJson(json);
    }

    return BsSelectBoxResponse(options: []);
  }
// ...

Json response data

[
  {
    "value":"1",
    "text":"Tipe 01",
    "typecd":"TP01"},
  {
    "value":"2",
    "text":"Type 02",
    "typecd":"TP02"
  }
]

Note #

  • createFromJson is automatically put response data value, but you cant change it with define manual
  • If you want to make typecd as value of option, use value parameters of createFromJson
/// ...
    if(response.statusCode == 200) {
      List json = convert.jsonDecode(response.body);
      return BsSelectBoxResponse.createFromJson(json, 
        value: (data) => data['typecd'],
      );
    }
/// ...
  • If you want to make typecd as text of option, use renderText parameters of createFromJson
  • renderText function need returned Widget
/// ...
    if(response.statusCode == 200) {
      List json = convert.jsonDecode(response.body);
      return BsSelectBoxResponse.createFromJson(json, 
        value: (data) => data['typecd'],
        renderText: (data) => Text(data['typecd'])
      );
    }
/// ...

Alt text Alt text

ServerSide Datatables (with datatables response) #

Example: main.dart

Alt text

To create a select box you need to import:

import 'package:bs_flutter_datatable/bs_flutter_datatable.dart';

Create source datatable:

class ExampleSource extends BsDatatableSource {

  static List<BsDataColumn> get columns => <BsDataColumn>[
    BsDataColumn(label: Text('No'), orderable: false, searchable: false, width: 100.0),
    BsDataColumn(label: Text('Code'), columnName: 'typecd', width: 200.0),
    BsDataColumn(label: Text('Name'), columnName: 'typenm'),
  ];

  @override
  BsDataRow getRow(int index) {
    return BsDataRow(index: index, cells: <BsDataCell>[
      BsDataCell(Text('${controller.start + index + 1}')),
      BsDataCell(Text('${response.data[index]['typecd']}')),
      BsDataCell(Text('${response.data[index]['typenm']}')),
    ]);
  }
}

To create row event listener you musth defined listener on data source

class ExampleSource extends BsDatatableSource {

// ...

  ValueChanged<dynamic> onEditListener = (value) {};
  ValueChanged<dynamic> onDeleteListener = (value) {};

// ...

}

And then use variable on pressed action

// ...
@override
  BsDataRow getRow(int index) {
    return BsDataRow(index: index, cells: <BsDataCell>[
      // ...
      BsDataCell(Row(
        children: [
          TextButton(
            onPressed: () => onEditListener(response.data[index]['typeid']), 
            child: Container(child: Text('Edit'))
          ),
          TextButton(
            onPressed: () => onDeleteListener(response.data[index]['typeid']),
            child: Container(child: Text('Edit'))
          )
        ],
      ))
      // ...
    ]);
  }
// ...

To handle that listener, you can set after request data success

  Future loadApi(Map<String, dynamic> params) {
    return http.post(
      // ..
    ).then((value) {
      // ...
      setState(() {
        // ...
        _source.onEditListener = (typeid) {
          /// Do edit
        };
        _source.onDeleteListener = (typeid) {
          /// Do delete
        };
      });
    });
  }

declare source and controller datatable:

// ...
class _MyAppState extends State<MyApp> {

  ExampleSource _source = ExampleSource();

  @override
  void initState() {
    _source.controller = BsDatatableController();
    super.initState();
  }

// ...

}

create table view:

// ...
    BsDatatable(
      source: _source,
      title: Text('Datatables Data'),
      columns: ExampleSource.columns,
      serverSide: loadApi,
    )
// ...

Serverside function to get datatable response

// ...
  Future loadApi(Map<String, dynamic> params) {
    return http.post(
      Uri.parse('http://localhost/flutter_crud/api/public/types/datatables'),
      body: params,
    ).then((value) {
      Map<String, dynamic> json = jsonDecode(value.body);
      setState(() {
        _source.response = BsDatatableResponse.createFromJson(json['data']);
        _source.onEditListener = (typeid) {
          /// Do edit
        };
        _source.onDeleteListener = (typeid) {
          /// Do delete
        };
      });
    });
  }
// ...

Note #

  • After request data from server has been successfully you need to update response data souece
// ...
  Future loadApi(Map<String, dynamic> params) {
    return http.post(
      // ...
    ).then((value) {
      // ...
      setState(() {
        /// Update response source data
        _source.response = BsDatatableResponse.createFromJson(json['data']);
        // ...
      });
    });
  }
// ..

To reload data you can use reload function

_source.controller.reload();

If you want to show data from List variable, you can add data to constructor source

class ExampleSource extends BsDatatableSource {

  ExampleSource({
    List? data,
  }) : super(data: data);

// ....
}

And now you cant set List variable in your widget

class Datatables extends StatefulWidget {
  @override
  _DatatablesState createState() => _DatatablesState();
}

class _DatatablesState extends State<Datatables> {

  ExampleSource _source1 = ExampleSource(
    data: [
      {'typecd': 'TP1', 'typenm': 'Type 1'},
      {'typecd': 'TP2', 'typenm': 'Type 2'},
      {'typecd': 'TP3', 'typenm': 'Type 3'},
      {'typecd': 'TP4', 'typenm': 'Type 4'},
      {'typecd': 'TP5', 'typenm': 'Type 5'},
    ]
  );

// ....

}

If you want to add data dynamicaly from button or anything, you can call method add or addAll. And if you want to update you call method put for remove call method remove or removeAt

// ...
    TextButton(
      onPressed: () {
        _source1.add({'typecd': 'TP1', 'typenm': 'Type ${_source1.datas.length}'});
      },
      child: Text('Add Row'),
    )
// ...

← Metadata

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Publisher

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Metadata

Simple flutter widget from Bootstrap v5 component, including responsive grid layout based on bootstrap grid system

Repository (GitHub)
View/report issues

Documentation

API reference

License

MIT (license)

Dependencies

bs_flutter_alert, bs_flutter_buttons, bs_flutter_card, bs_flutter_datatable, bs_flutter_inputtext, bs_flutter_modal, bs_flutter_responsive, bs_flutter_selectbox, bs_flutter_utils, flutter, flutter_web_plugins

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