unik_lib_flutter 0.0.2 unik_lib_flutter: ^0.0.2 copied to clipboard
This is plugin for get balance and update balance.
example/lib/main.dart
import 'package:flutter/material.dart';
import 'package:flutter/painting.dart';
import 'package:flutter/services.dart';
import 'package:unik_lib_flutter/unik_lib_flutter.dart';
import 'package:intl/intl.dart';
import 'package:unik_lib_flutter_example/screen/TapCard.dart';
import 'package:unique_identifier/unique_identifier.dart';
import 'PreferencesHelper.dart';
void main() {
WidgetsFlutterBinding.ensureInitialized();
PreferencesHelper.init();
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: Center(child: NfcScan()),
),
);
}
}
class NfcScan extends StatefulWidget {
NfcScan({Key key}) : super(key: key);
@override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<NfcScan> {
String _balance = "0", _cardNumber = "000000000000000", _status = "Unknown";
String _bgCard = "images/mandiri_bg.png";
bool _isLoading = false;
String paidAmount;
String _identifier = 'Unknown';
String _bankName;
@override
void initState() {
super.initState();
initPlatformState();
UnikLibFlutter.initUnikLib();
}
void getCardInfo() async {
List<String> cardUid = List(1);
List<String> cardNumber = List(1);
List<String> balance = List(1);
List<String> bankName = List(1);
List<String> cardAttr = List(1);
List<String> cardInfo = List(1);
bool isSuccess = await UnikLibFlutter.getCardInfo(
cardUid, cardNumber, balance, bankName, cardAttr, cardInfo);
_setStateCard(isSuccess, cardNumber[0], balance[0], bankName[0]);
}
void updateBalance() async {
List<String> status = List(1);
List<String> cardNumber = List(1);
List<String> balance = List(1);
List<String> bankName = List(1);
bool isSuccess = await UnikLibFlutter.updateBalance(
status, cardNumber, balance, bankName);
print("status update ${status[0]}");
this.setState(() {
_status = status[0];
});
_setStateCard(isSuccess, cardNumber[0], balance[0], bankName[0]);
}
void _setStateCard(
bool isSuccess, String cardNumber, String balance, String bankName) {
if (isSuccess) {
this.setState(() {
_cardNumber = cardNumber ?? "0000000000000000";
_balance = balance ?? "0";
_bgCard =
(bankName == "BNI") ? "images/bni_bg.png" : "images/mandiri_bg.png";
_bankName = bankName;
});
} else {
print("Something went wrong");
this.setState(() {
_bgCard =
(bankName == "BNI") ? "images/bni_bg.png" : "images/mandiri_bg.png";
_bankName = bankName;
});
}
Navigator.pop(context);
}
@override
Widget build(BuildContext context) {
void _showBottomSheet(dynamic screen, dynamic height) {
showModalBottomSheet(
isScrollControlled: true,
shape: RoundedRectangleBorder(
borderRadius: new BorderRadius.only(
topLeft: const Radius.circular(25.0),
topRight: const Radius.circular(25.0),
),
),
context: context,
builder: (builder) {
return new Container(
height: MediaQuery.of(context).size.height * height,
color: Colors.transparent,
//could change this to Color(0xFF737373),
//so you don't have to change MaterialApp canvasColor
child: new Container(
child: new Center(
child: screen,
)),
);
});
}
return Scaffold(
body: Container(
height: MediaQuery.of(context).size.height,
width: MediaQuery.of(context).size.width,
child: SingleChildScrollView(
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Container(
width: MediaQuery.of(context).size.width,
height: 200,
decoration: BoxDecoration(
image: DecorationImage(
fit: BoxFit.fill,
image: AssetImage('images/bg_home.png'),
)),
child: Align(
alignment: Alignment(0, 17),
child: Container(
padding: EdgeInsets.only(left: 20, right: 20),
decoration: BoxDecoration(
image: DecorationImage(
fit: BoxFit.fill, image: AssetImage(_bgCard)),
borderRadius: BorderRadius.circular(25),
color: Colors.white,
boxShadow: [
BoxShadow(
color: Colors.grey.withOpacity(0.3),
spreadRadius: 2,
blurRadius: 2,
offset:
Offset(3, 3), // changes position of shadow
),
],
),
width: 322,
height: 190,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
SizedBox(
height: 70,
),
DefaultTextStyle(
style: TextStyle(color: Colors.black),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
_cardNumber.replaceAllMapped(
RegExp(r".{4}"),
(match) => "${match.group(0)} "),
style: TextStyle(
color: Colors.white, fontSize: 18)),
SizedBox(
height: 17,
),
Text("Saldo",
style: TextStyle(
color: Colors.white38,
fontSize: 15)),
SizedBox(
height: 3,
),
Text(
NumberFormat.simpleCurrency(
locale: 'id_ID')
.format(int.parse(_balance)),
style: TextStyle(color: Colors.white)),
],
))
],
)),
),
),
SizedBox(
height: 100,
),
Container(
width: 300,
child: ElevatedButton.icon(
label: Text('Update'),
icon: Icon(Icons.update_rounded),
onPressed: () {
updateBalance();
_showBottomSheet(TapCard(), 0.50);
},
)),
SizedBox(
height: 30,
),
Align(
alignment: Alignment.center,
child:
_isLoading ? CircularProgressIndicator() : Text(_status),
)
],
),
)),
floatingActionButton: FloatingActionButton(
onPressed: () {
getCardInfo();
_showBottomSheet(TapCard(), 0.50);
},
child: const Icon(Icons.cached),
backgroundColor: Colors.blue,
),
);
}
Future<void> initPlatformState() async {
String identifier;
try {
identifier = await UniqueIdentifier.serial;
} on PlatformException {
identifier = 'Failed to get Unique Identifier';
}
if (!mounted) return;
setState(() {
_identifier = identifier;
});
print("Unique $_identifier");
}
}