Flutter - 입력용 위젯

•   TextField

-Textfield는 글자를 받는 입력용 위젯입니다.

-InputDecoration 클래스와 함께 사용하면 힌트 메세지나 외곽선등의 꾸밈 효과를 간단히 추가할수있다.

 

 

1. 로그인 화면 구현해보기.

import 'dart:ffi';

import 'package:flutter/material.dart';

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

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

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Cßolors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

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

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

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

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text("Flutter"),
      ),
      body: SingleChildScrollView(
        child: Padding(
          padding: const EdgeInsets.all(10.0),
          child: Column(
            children: [
              Padding(
                padding: const EdgeInsets.all(30.0),
                child: Image.network("https://i.ibb.co/CwzHq4z/trans-logo-512.png"
                  , width:80,),
              ),
               Padding(
                padding: EdgeInsets.only(bottom: 30),
                child: TextField(
                  decoration: InputDecoration(labelText: "이메일",
                  border: OutlineInputBorder()),
                ),
              ),
               TextField(
                decoration: InputDecoration(labelText: "비밀번호",
                border: OutlineInputBorder()),
              ),
              Container(
                  width: double.infinity,
                  margin: EdgeInsets.only(top: 20),
                  child: ElevatedButton(onPressed: () {}, child: Text("로그인"))),
              Icon(Icons.facebook_outlined,
              color: Colors.indigoAccent,),
            ],
          ),
        ),
      ),
    );
  }
}