I am developing a new plugin flutter_easy_dropdown that uses the latest version dropdown_search. I have added new features in this new plugin like a pagintion in dropdown list using netwok APIs.

Flutter Easy DropdownSearch

Flutter simple and robust Easy DropdownSearch with item search feature, making it possible to use an offline item list or filtering URL for easy customization with PAGINATION VIEW.

Dropdown search

Key Features

  • Dropdown with pagination
  • Sync and/or Async items (online, offline, DB, ...)
  • Searchable dropdown
  • Three dropdown mode: Menu/ BottomSheet/ ModalBottomSheet / Dialog
  • Single & multi selection
  • Material dropdown
  • Easy customizable UI
  • Handle Light and Dark theme
  • Easy implementation into statelessWidget
  • Support multi level items

Pagination implementation (using Dio package)

DropdownSearch<UserModel>(
    dropdownSearchDecoration: InputDecoration(labelText: "Name"),
    onLoadMore: (String filter, int offset) async {
        var response = await Dio().get(
            "http://5d85ccfb1e61af001471bf60.mockapi.io/user",
            queryParameters: {"filter": filter, "page":offset, "size":10},
        );
        var models = UserModel.fromJsonList(response.data);
        return models;
    },
    onChanged: (UserModel? data) {
      print(data);
    },
)
Dropdown search Dropdown search
Dropdown search Dropdown search

packages.yaml

flutter_easy_dropdown: <lastest version>

Import

import 'package:flutter_easy_dropdown/flutter_easy_dropdown.dart';

Simple implementation

DropdownSearch<String>(
    popupProps: PopupProps.menu(
        showSelectedItems: true,
        disabledItemFn: (String s) => s.startsWith('I'),
    ),
    items: ["Brazil", "Italia (Disabled)", "US", 'Canada'],
    dropdownDecoratorProps: DropDownDecoratorProps(
        dropdownSearchDecoration: InputDecoration(
            labelText: "Menu mode",
            hintText: "country in menu mode",
        ),
    ),
    onChanged: print,
    selectedItem: "Brazil",
)

DropdownSearch<String>.multiSelection(
    items: ["Brazil", "Italia (Disabled)", "London", 'Canada'],
    popupProps: PopupPropsMultiSelection.menu(
        showSelectedItems: true,
        disabledItemFn: (String s) => s.startsWith('I'),
    ),
    onChanged: print,
    selectedItems: ["Brazil"],
)

customize showed field (itemAsString)

DropdownSearch<UserModel>(
    asyncItems: (String filter) => getData(filter),
    itemAsString: (UserModel u) => u.userAsStringByName(),
    onChanged: (UserModel? data) => print(data),
    dropdownDecoratorProps: DropDownDecoratorProps(
        dropdownSearchDecoration: InputDecoration(labelText: "User by name"),
    ),
)

DropdownSearch<UserModel>(
    asyncItems: (String filter) => getData(filter),
    itemAsString: (UserModel u) => u.userAsStringById(),
    onChanged: (UserModel? data) => print(data),
    dropdownDecoratorProps: DropDownDecoratorProps(
        dropdownSearchDecoration: InputDecoration(labelText: "User by id"),
    ),
)

customize Filter Function

DropdownSearch<UserModel>(
    filterFn: (user, filter) =>
    user.userFilterByCreationDate(filter),
    asyncItems: (String filter) => getData(filter),
    itemAsString: (UserModel u) => u.userAsStringByName(),
    onChanged: (UserModel? data) => print(data),
    dropdownDecoratorProps: DropDownDecoratorProps(
        dropdownSearchDecoration: InputDecoration(labelText: "Name"),
    ),
)

customize Search Mode

DropdownSearch<UserModel>(
    popupProps: PopupProps.bottomSheet(),
    dropdownSearchDecoration: InputDecoration(labelText: "Name"),
    asyncItems: (String filter) => getData(filter),
    itemAsString: (UserModel u) => u.userAsString(),
    onChanged: (UserModel? data) => print(data),
)

Validation

DropdownSearch(
    items: ["Brazil", "France", "Tunisia", "Canada"],
    dropdownSearchDecoration: InputDecoration(labelText: "Name"),
    onChanged: print,
    selectedItem: "Tunisia",
    validator: (String? item) {
    if (item == null)
      return "Required field";
    else if (item == "Brazil")
      return "Invalid item";
    else
      return null;
    },
)

Endpoint implementation (using Dio package)

DropdownSearch<UserModel>(
    dropdownSearchDecoration: InputDecoration(labelText: "Name"),
    asyncItems: (String filter) async {
        var response = await Dio().get(
            "http://5d85ccfb1e61af001471bf60.mockapi.io/user",
            queryParameters: {"filter": filter},
        );
        var models = UserModel.fromJsonList(response.data);
        return models;
    },
    onChanged: (UserModel? data) {
      print(data);
    },
)

Support

If this plugin was useful to you, helped you to deliver your app, saved you a lot of time, or you just want to support the project.

Libraries

flutter_easy_dropdown