csc_picker

A flutter package to display a country, states, and cities. In addition it gives the possibility to select a list of countries, States and Cities depends on Selected, also you can search country, state, and city all around the world.

How to Use

To use this Package, add csc_picker as a dependency in your pubspec.yaml.

      	CSCPicker(
              onCountryChanged: (value) {
      			setState(() {
      					countryValue = value;
      				});
                  },
                  onStateChanged:(value) {
                      setState(() {
      					stateValue = value;
      				});
                  },
                  onCityChanged:(value) {
                  setState(() {
                      cityValue = value;
      			});
      		},
          ),

you will get feedback in onChanged functions

Parameters

Parameters	Type	Description
flagState	CountryFlag	Enable (get flag with country name) / Disable (Disable flag) / ShowInDropdownOnly (display flag in dropdown only)
layout	Layout	Toggle dropdown layout (Horizontal / Vertical)
showStates	Boolean	Enable disable States dropdown (true / false)
showCities	Boolean	Enable disable Cities dropdown (true / false)
dropdownDecoration	BoxDecoration	Dropdown box decoration to style your dropdown selector [OPTIONAL PARAMETER] (USE with disabledDropdownDecoration)
disabledDropdownDecoration	BoxDecoration	Disabled Dropdown box decoration to style your dropdown selector [OPTIONAL PARAMETER] (USE with disabled dropdownDecoration)
selectedItemStyle	TextStyle	To change selected item style
dropdownHeadingStyle	TextStyle	To change DropdownDialog Heading style
dropdownItemStyle	TextStyle	To change DropdownDialog Item style
dropdownDialogRadius	double	To change DropdownDialogBox radius
searchBarRadius	double	To change search bar radius
defaultCountry	CscCountry	To select default country
disableCountry	Boolean	Disable country dropdown (Note: use it with default country)
countryFilter	List of CscCountry	Show only countries in dropdown that you want
countrySearchPlaceholder	String	Placeholder for country search field
stateSearchPlaceholder	String	Placeholder for state search field
citySearchPlaceholder	String	Placeholder for city search field
countryDropdownLabel	String	Label/Title for country dropdown
countryDropdownLabel	String	Label/Title for state dropdown
countryDropdownLabel	String	Label/Title for city dropdown

Example

import 'package:csc_picker/csc_picker.dart';
import 'package:flutter/material.dart';

/// This is a implementation of the Country State City Picker.
void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'CSC Picker',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      home: MyHomePage(title: 'CSC Picker'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  /// Variables to store country state city data in onChanged method.
  String countryValue = "";
  String stateValue = "";
  String cityValue = "";
  String address = "";

  @override
  Widget build(BuildContext context) {

    GlobalKey<CSCPickerState> _cscPickerKey = GlobalKey();

    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Container(
            padding: EdgeInsets.symmetric(horizontal: 20),
            height: 600,
            child: Column(
              children: [
                ///Adding CSC Picker Widget in app
                CSCPicker(
                  ///Enable disable state dropdown [OPTIONAL PARAMETER]
                  showStates: true,

                  /// Enable disable city drop down [OPTIONAL PARAMETER]
                  showCities: true,

                  ///Enable (get flag with country name) / Disable (Disable flag) / ShowInDropdownOnly (display flag in dropdown only) [OPTIONAL PARAMETER]
                  flagState: CountryFlag.DISABLE,

                  ///Dropdown box decoration to style your dropdown selector [OPTIONAL PARAMETER] (USE with disabledDropdownDecoration)
                  dropdownDecoration: BoxDecoration(
                      borderRadius: BorderRadius.all(Radius.circular(10)),
                      color: Colors.white,
                      border:
                      Border.all(color: Colors.grey.shade300, width: 1)),

                  ///Disabled Dropdown box decoration to style your dropdown selector [OPTIONAL PARAMETER]  (USE with disabled dropdownDecoration)
                  disabledDropdownDecoration: BoxDecoration(
                      borderRadius: BorderRadius.all(Radius.circular(10)),
                      color: Colors.grey.shade300,
                      border:
                      Border.all(color: Colors.grey.shade300, width: 1)),

                  ///placeholders for dropdown search field
                  countrySearchPlaceholder: "Country",
                  stateSearchPlaceholder: "State",
                  citySearchPlaceholder: "City",

                  ///labels for dropdown
                  countryDropdownLabel: "*Country",
                  stateDropdownLabel: "*State",
                  cityDropdownLabel: "*City",

                  ///Default Country
                  //defaultCountry: CscCountry.India,

                  ///Disable country dropdown (Note: use it with default country)
                  //disableCountry: true,

                  ///Country Filter [OPTIONAL PARAMETER]
                  countryFilter: [CscCountry.India,CscCountry.United_States,CscCountry.Canada],

                  ///selected item style [OPTIONAL PARAMETER]
                  selectedItemStyle: TextStyle(
                    color: Colors.black,
                    fontSize: 14,
                  ),

                  ///DropdownDialog Heading style [OPTIONAL PARAMETER]
                  dropdownHeadingStyle: TextStyle(
                      color: Colors.black,
                      fontSize: 17,
                      fontWeight: FontWeight.bold),

                  ///DropdownDialog Item style [OPTIONAL PARAMETER]
                  dropdownItemStyle: TextStyle(
                    color: Colors.black,
                    fontSize: 14,
                  ),

                  ///Dialog box radius [OPTIONAL PARAMETER]
                  dropdownDialogRadius: 10.0,

                  ///Search bar radius [OPTIONAL PARAMETER]
                  searchBarRadius: 10.0,

                  ///triggers once country selected in dropdown
                  onCountryChanged: (value) {
                    setState(() {
                      ///store value in country variable
                      countryValue = value;
                    });
                  },

                  ///triggers once state selected in dropdown
                  onStateChanged: (value) {
                    setState(() {
                      ///store value in state variable
                      stateValue = value;
                    });
                  },

                  ///triggers once city selected in dropdown
                  onCityChanged: (value) {
                    setState(() {
                      ///store value in city variable
                      cityValue = value;
                    });
                  },
                ),

                ///print newly selected country state and city in Text Widget
                TextButton(
                    onPressed: () {
                      setState(() {
                        address = "$cityValue, $stateValue, $countryValue";
                      });
                    },
                    child: Text("Print Data")),
                Text(address)
              ],
            )),
      ),
    );
  }
}

Special Thanks to

• Okoh Emmanuel, country_state_city_picker country_state_city_picker
• Darshan Gada, countries-states-cities-database countries-states-cities-database