[Newbie] Chapter 2. Flutter getting started

[Newbie] Chapter 1. Flutter overview


  • Installation
  • New project
  • Convention


Some steps you need to follow, I assume on macOS and java already installed

  • Download and install Android Studio: https://developer.android.com/studio/install
  • Open Android Studio and create new Android emulator
  • Install XCode of course: Open App Store and download XCode -> Install it
  • Download Flutter at https://flutter.dev/docs/development/tools/sdk/releases
  • Extract flutter zip and place it anywhere you like in your computer
  • Update your path, point to flutter/bin to make sure you type flutter on the terminal and it works
  • Verify installation with: flutter doctor --android-licenses

Full documentation at https://flutter.dev/docs/get-started/install

New project

Follow below steps

  • Open Android Studio
  • Start a new Flutter project
  • Select Start a new Flutter project
  • Select Flutter Application -> Next
new Flutter application
  • Fill Project name and Project location -> Next
  • Confirm your package name -> Finish
confirm package name
  • Select emulator and Run
first run

That’s all


Next thing I suggest you guys need to read a basic convention before putting your hand to code.

  • Dart: https://dart.dev/guides/language/effective-dart/style
  • Flutter: https://github.com/flutter/flutter/wiki/Style-guide-for-Flutter-repo

The document to too rich for a newbie, I will highlight some points:


  • DO name Classes, enums, typedefs, and types using UpperCamelCase.
  • DO name import prefixes, libraries, packages, directories, and source files using lowercase_with_underscores.
  • DO name constant names and other identifiers using lowerCamelCase.
  • DON’T use prefix letters.


  • DO place “dart:” imports first
  • DO place “package:” imports before relative imports.
  • PREFER placing external “package:” imports before other imports.
  • DO specify exports in a separate section after all imports.
  • DO sort sections alphabetically.
import 'dart:async';
import 'dart:html';
import 'package:bar/bar.dart';
import 'package:foo/foo.dart';
import 'package:my_package/util.dart';
import 'util.dart';

export 'src/error.dart';


  • Using trailing commas
  • Using flutter format or Cmd + Alt + L on Android Studio to format you code

Sample structure naming

	+ fonts/
	+ icons/

	+ models/remote/
	+ pages/login/
		+ login_bloc.dart
		+ login_screen.dart
	+ provider/
		+ store/
			+ remote/
			+ local/
		+ global.dart

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