A flutter project with a description of the basic Flutter framework

by Flutter Awesome

  • Pengenalan kepada Mobile Platform (Slide)
  • Apa itu Flutter Framework
  • Pemasangan persekitaran Flutter, Android SDK & VSCode IDE
  • Widget Layout & UI Element

Latihan 1

Menghasilkan projek flutter dengan penerangan kerangka asas Flutter

  • StatelessWidget
  • MaterialApp
  • Scaffold

StatelessWidget

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Material App',
      home: Scaffold(
        appBar: AppBar(
          title: Text('Material App Bar'),
        ),
        body: Center(
          child: Container(
            child: Text('Hello World'),
          ),
        ),
      ),
    );
  }
}

StatefulWidget

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatefulWidget {
  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Material App',
      home: Scaffold(
        appBar: AppBar(
          title: Text('Material App Bar'),
        ),
        body: Center(
          child: Container(
            child: Text('Hello World'),
          ),
        ),
      ),
    );
  }
}

Latihan 1 : flutter_application_1

Latihan 2

Merangka Layout berasaskan Column dan Row bagi membentuk satu susunan layout yang dikehendaki didalam antaramuka aplikasi

  • StatelessWidget
  • MaterialApp
  • Scaffold
  • Widget Column and children
  • Widget Row and children
  • Widget Container and child

Latihan 2 : flutter_application_2

Latihan 3

Melengkapkan Layout Column dan Row dengan kandungan seperti Widget Text & Image untuk menghasilkan aplikasi lebih menarik

Mewujudkan fail home.dart yang berasingan bagi penyusunan struktur projek

  • Widget Column and children
  • Widget Row and children
  • Widget Container and child
    • Widget Center
    • Widget Text
    • Widget Image
    • Dependencies : images
  • Navigator push and pop

double? width
MediaQuery.of(context).size.width

double? height
MediaQuery.of(context).size.height

Latihan 4 : flutter_application_3

Latihan 4

Mewujudkan fail show.dart untu memaparkan butiran dari home.dart

  • Dependencies : fonts
    • fontFamily: 'Bubblegum'
  • Navigator push and pop
    • Widget InkWell
  • Data Model
  • ListView Builder
  • UI Element ListTile()

Custom Widget : KlikGambarWidget()

class KlikGambarWidget extends StatelessWidget {
  KlikGambarWidget({
    Key? key,
    required this.title,
    required this.nama,
  }) : super(key: key);

  String title;
  String nama;

  @override
  Widget build(BuildContext context) {
    return InkWell(
      onTap: () {
        Navigator.push(
            context,
            MaterialPageRoute(
                builder: (context) => ShowPage(gambar: nama, title: title)));
      },
      child: Container(
        height: 100,
        width: MediaQuery.of(context).size.width * 0.25,
        decoration: BoxDecoration(
            image: DecorationImage(
                image: AssetImage('images/$nama'), fit: BoxFit.cover)),
      ),
    );
  }
}

Data Models

class Gambar {
  String gambar;
  String tajuk;

  Gambar({required this.gambar, required this.tajuk});
}

Data List

List<Gambar> semua = [
  Gambar(gambar: 'avatar/avatar1.png', tajuk: 'Avatar 1'),
  Gambar(gambar: 'avatar/avatar2.png', tajuk: 'Avatar 2'),
  Gambar(gambar: 'avatar/avatar3.png', tajuk: 'Avatar 3'),
  Gambar(gambar: 'avatar/avatar4.png', tajuk: 'Avatar 4'),
  Gambar(gambar: 'avatar/avatar5.png', tajuk: 'Avatar 5'),
];

Latihan 4 : flutter_application_4

Latihan 5

Membina Drawer() (side bar) dan simpan sebagai widgets/menu.dart

  import 'package:flutter/material.dart';
import 'package:flutter_application_4/pages/home.dart';
import 'package:flutter_application_4/pages/list.dart';
import 'package:flutter_application_4/pages/listdata.dart';

class MenuWidget extends StatelessWidget {
  const MenuWidget({
    Key? key,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Drawer(
      child: ListView(
        children: [
          Container(
            padding: EdgeInsets.symmetric(horizontal: 5.0),
            width: MediaQuery.of(context).size.width,
            height: 80,
            alignment: Alignment.centerRight,
            decoration: BoxDecoration(
                image: DecorationImage(
                    image: AssetImage('images/fruit/fruit_main.jpg'),
                    fit: BoxFit.cover)),
            child: const Text('Fruit App',
                style: TextStyle(
                    color: Colors.white,
                    fontSize: 24,
                    letterSpacing: 3.5,
                    fontWeight: FontWeight.bold,
                    fontFamily: 'Bubblegum')),
          ),
          ListTile(
            leading: Icon(Icons.home),
            title: Text('Home'),
            onTap: () {
              //Navigator
              Navigator.push(
                  context, MaterialPageRoute(builder: (context) => Home()));
            },
          ),
          ListTile(
            leading: Icon(Icons.favorite),
            title: Text('My Fruit'),
            onTap: () {
              //Navigator
              Navigator.push(
                  context, MaterialPageRoute(builder: (context) => ListPage()));
            },
          ),
          ListTile(
            leading: Icon(Icons.batch_prediction),
            title: Text('Fruit Data'),
            onTap: () {
              //Navigator
              Navigator.push(context,
                  MaterialPageRoute(builder: (context) => ListDataPage()));
            },
          ),
        ],
      ),
    );
  }
}

Menghasilkan AppBar action button utk LoginPage()

  • Widget Form()
  • Widget TextFormField()
  • Widget ElevatedButton()

Mengubah App icon launcher menggunakan plugin https://pub.dev/packages/flutter_launcher_icons

  flutter_launcher_icons: ^0.9.2  

  flutter_icons:
    android: "launcher_icon"
    ios: true
    image_path: "images/icon/logo.png"

  flutter pub run flutter_launcher_icons:main

In the above configuration, the package is setup to replace the existing launcher icons

Menghasilkan apk dengan CLI flutter build apk

Latihan 5 : flutter_application_5

Rujukan

GitHub

View Github