Textfield

[berkeresvan]

import 'package:flutter/material.dart';

void main() { runApp(const MyApp()); }

class MyApp extends StatelessWidget { const MyApp({super.key});

@override Widget build(BuildContext context) { return MaterialApp( title: 'Flutter Demo', theme: ThemeData( colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple), useMaterial3: true, ), home: const MyHomePage(title: 'Flutter Demo Home Page'), ); } }

class MyHomePage extends StatefulWidget { const MyHomePage({super.key, required this.title});

final String title;

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

class _MyHomePageState extends State { late TextEditingController _emailcontroller; late FocusNode _focusNode;

@override void initState() { super.initState(); _emailcontroller = TextEditingController(text: "berke@berke.com"); _focusNode = FocusNode(); }

@override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( backgroundColor: Theme.of(context).colorScheme.inversePrimary, title: Text(widget.title), ), body: Center( child: Column( mainAxisAlignment: MainAxisAlignment.center, children: [ TextField( focusNode: _focusNode, controller: _emailcontroller, keyboardType: TextInputType.number, textInputAction: TextInputAction.go, autofocus: true, maxLines: 2, maxLength: 20, onChanged: (String deger) { if ((deger.length > 3)) { setState(() { _emailcontroller.value = TextEditingValue( text: deger, selection: TextSelection.collapsed(offset: deger.length)); }); } }, onSubmitted: (String deger) { print(deger + "submit"); }, cursorColor: Colors.pink, decoration: InputDecoration( labelText: "labeltext", hintText: "giriniz", icon: Icon(Icons.add), suffixIcon: Icon(Icons.access_alarms_outlined), border: OutlineInputBorder( borderRadius: BorderRadius.circular(8), ), filled: true, //fillColor: Colors.pink ), ), Text(_emailcontroller.text), TextField( keyboardType: TextInputType.number, textInputAction: TextInputAction.go, ), ElevatedButton( onPressed: () { setState(() { _emailcontroller.text = "berrke"; }); }, child: Text("bas")) ], ), ), ); } }