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Container(
          padding: EdgeInsets.symmetric(horizontal: 50, vertical: 30),
          child: Column(
            children: <Widget>[
              DropdownButton<String>(
                isExpanded: true,
                items: _states.map((String dropDownStringItem) {
                  return DropdownMenuItem<String>(
                    value: dropDownStringItem,
                    child: Text(dropDownStringItem),

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  @override
  void initState() {
    _states = List.from(_states)..addAll(repo.getStates());
    super.initState();
  }

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class Home extends StatefulWidget {
  @override
  _HomeState createState() => _HomeState();
}

class _HomeState extends State<Home> {
  @override
  Widget build(BuildContext context) {
    
    return Scaffold(

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import 'package:flutter/material.dart';
import 'package:states_lga/repository.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',

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import 'package:states_lga/state_model.dart';

class Repository {
  List<Map> getAll() => _nigeria;

getLocalByState(String state) => _nigeria
      .map((map) => StateModel.fromJson(map))
      .where((item) => item.state == state)
      .map((item) => item.lgas)
      .expand((i) => i)

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class StateModel {
  String state;
  String alias;
  List<String> lgas;

  StateModel({this.state, this.alias, this.lgas});

  StateModel.fromJson(Map<String, dynamic> json) {
    state = json['state'];
    alias = json['alias'];

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class Repository {

  List<Map> getAll() => _nigeria;

  getLocalByState(String state) => null
     

  List<String> getStates() => null

  List _nigeria = [

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  Positioned(
              bottom: MediaQuery.of(context).size.height * .37,
              left: MediaQuery.of(context).size.width * .05,
              child: RaisedButton(
                  // padding: EdgeInsets.all(20),
                  padding: EdgeInsets.symmetric(
                    vertical: 18.0,
                    horizontal: 38.0,
                  ),
                  color: Color(0xFFEE112D),

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Container(
                height: MediaQuery.of(context).size.height,
                width: MediaQuery.of(context).size.width,
                child: ListView(
                  children: <Widget>[
                    cryptoPortfolioItem(FontAwesomeIcons.btc, "BTC", 410.80,
                        0.0036, "82.19(92%)"),
                    cryptoPortfolioItem(FontAwesomeIcons.ethereum, "ETH",
                        1089.86, 126.0, "13.10(2.3%)"),
                    cryptoPortfolioItem(FontAwesomeIcons.xRay, "XRP", 22998.13,

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cryptoPortfolioItem(IconData icon, String name, double amount, double rate,
            String percentage) =>
        Card(
          elevation: 1.0,
          child: InkWell(
            onTap: () => print("tapped"),
            child: Container(
              padding: EdgeInsets.only(top: 15.0, bottom: 15.0, right: 15.0),
              decoration: BoxDecoration(
                  color: Colors.white,