Currency Value not updating

Good day,

My currency value is not updating, though the currency changes. can anyone help?

CoinData

`import 'package:http/http.dart' as http; import 'dart:convert'; import 'constants.dart'; import 'price_screen.dart';

const List currenciesList = [ 'AUD', 'BRL', 'CAD', 'CNY', 'EUR', 'GBP', 'HKD', 'IDR', 'ILS', 'INR', 'JPY', 'MXN', 'NOK', 'NGN', 'NZD', 'PLN', 'RON', 'RUB', 'SEK', 'SGD', 'USD', 'ZAR' ];

const List cryptoList = [ 'BTC', 'ETH', 'LTC', ];

String cryptoName = 'BTC';

class CoinData {

Future getCoinData(String selectedCurrency) async {

String requestURL = '$coinAPIURL/$cryptoName/$selectedCurrency?apikey=$apiKey';

http.Response response = await http.get(Uri.parse(requestURL));
if(response.statusCode == 200) {

  var decodeData = jsonDecode(response.body);

  var lastPrice = decodeData['rate'];

  return lastPrice;
} else {
  print(response.statusCode);

  throw 'Problem with the get request';
}

}

PriceScreen

`import 'package:flutter/material.dart'; import 'package:flutter/cupertino.dart'; import 'coin_data.dart'; import 'dart:io' show Platform;

class PriceScreen extends StatefulWidget { @override _PriceScreenState createState() => _PriceScreenState(); }

class _PriceScreenState extends State { String selectedCurrency = 'USD'; String cryptoName = 'BTC';

DropdownButton androidDropdown() { List<DropdownMenuItem> dropdownItems = []; for (String currency in currenciesList) { setState(() { var newItem = DropdownMenuItem( child: Text(currency), value: currency, ); dropdownItems.add(newItem); }); }

return DropdownButton<String>(
  value: selectedCurrency,
  items: dropdownItems, iconSize: 40, isExpanded: true,
  onChanged: (value) {
    setState(() {
      selectedCurrency = value;
    });
  },
);

}

CupertinoPicker iOSPicker() { List pickerItems = []; for (String currency in currenciesList) { pickerItems.add(Text(currency)); }

return CupertinoPicker(
  backgroundColor: Colors.lightBlue,
  itemExtent: 32.0,
  onSelectedItemChanged: (selectedIndex) {
    print(selectedIndex);
    setState(() {
      selectedCurrency = currenciesList[selectedIndex];
      getData();
    });
  },
  children: pickerItems,
);

}

String bitcoinValue = '?';

void getData() async { try { double data = await CoinData().getCoinData(selectedCurrency); setState(() { bitcoinValue = data.toStringAsFixed(0); }); } catch (e) { print(e); } }

@override void initState() { super.initState(); getData(); }

@override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text('🤑 Coin Ticker'), ), body: Column( mainAxisAlignment: MainAxisAlignment.spaceBetween, crossAxisAlignment: CrossAxisAlignment.stretch, children: [ Padding( padding: EdgeInsets.fromLTRB(18.0, 18.0, 18.0, 0), child: Card( color: Colors.lightBlueAccent, elevation: 5.0, shape: RoundedRectangleBorder( borderRadius: BorderRadius.circular(10.0), ), child: Padding( padding: EdgeInsets.symmetric(vertical: 15.0, horizontal: 28.0), child: Text( '1 $cryptoName = $bitcoinValue $selectedCurrency', textAlign: TextAlign.center, style: TextStyle( fontSize: 20.0, color: Colors.white, ), ), ), ), ), DropdownButtonHideUnderline( child: Container( height: 150.0, alignment: Alignment.center, padding: EdgeInsets.only(bottom: 30.0), color: Colors.lightBlue, child: Container( margin: EdgeInsets.all(16), padding: EdgeInsets.symmetric(horizontal: 12, vertical: 4), decoration: BoxDecoration( border: Border.all(color: Colors.white, width: 4), borderRadius: BorderRadius.circular(12), ), child: Platform.isIOS ? iOSPicker() : androidDropdown(), ), ), ), ], ), ); } }`

londonappbrewery / bitcoin-flutter-silver-solution

Currency Value not updating #2