Cara Membuat Input PIN OTP di Flutter

Cara Membuat Input PIN OTP di Flutter

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Berikut ini root codification nya:

import 'package:flutter/material.dart'; void main() { runApp(const MyApp()); } class MyApp extends StatelessWidget { const MyApp({super.key}); @override Widget build(BuildContext context) { instrumentality MaterialApp( debugShowCheckedModeBanner: false, theme: ThemeData( useMaterial3: false, primarySwatch: Colors.green, ), home: const HomePage(), ); } } class HomePage extends StatefulWidget { const HomePage({super.key}); @override HomePageState createState() => HomePageState(); } class HomePageState extends State { last TextEditingController _fieldOne = TextEditingController(); last TextEditingController _fieldTwo = TextEditingController(); last TextEditingController _fieldThree = TextEditingController(); last TextEditingController _fieldFour = TextEditingController(); String? _otp; @override Widget build(BuildContext context) { instrumentality Scaffold( appBar: AppBar( title: const Text('PIN OTP'), ), body: Column( mainAxisAlignment: MainAxisAlignment.center, children: [ const Text('Phone Number Verification'), const SizedBox( height: 30, ), Row( mainAxisAlignment: MainAxisAlignment.spaceEvenly, children: [ OtpInput(_fieldOne, true), // car focus OtpInput(_fieldTwo, false), OtpInput(_fieldThree, false), OtpInput(_fieldFour, false) ], ), const SizedBox( height: 30, ), ElevatedButton( onPressed: () { setState(() { _otp = _fieldOne.text + _fieldTwo.text + _fieldThree.text + _fieldFour.text; }); }, child: const Text('Submit') ), const SizedBox( height: 30, ), Text( _otp ?? 'Please participate OTP', style: const TextStyle(fontSize: 30), ) ], ), ); } } class OtpInput extends StatelessWidget { last TextEditingController controller; last bool autoFocus; const OtpInput(this.controller, this.autoFocus, {super.key}); @override Widget build(BuildContext context) { instrumentality SizedBox( height: 60, width: 50, child: TextField( autofocus: autoFocus, textAlign: TextAlign.center, keyboardType: TextInputType.number, controller: controller, maxLength: 1, cursorColor: Theme.of(context).primaryColor, decoration: const InputDecoration( border: OutlineInputBorder(), counterText: '', hintStyle: TextStyle(color: Colors.black, fontSize: 20.0) ), onChanged: (value) { if (value.length == 1) { FocusScope.of(context).nextFocus(); } }, ), ); } }

Untuk Output-nya nanti seperti ini:

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