Flutter installation

Now, we are going to see how we can install flutter in macOS.

Pre-Requisites For Installing Flutter

Knowledge of OOPs (object oriented programming) and familiarity with programming languages like Java,C,C++ etc. is a must before starting with flutter. It is advisable to learn and at least have basic knowledge of classes and objects before going any further with flutter.

SYSTEM REQUIREMENT FOR INSTALLING FLUTTER IN MACOS:

OPERATING SYSTEMMAC OS (64 BIT)
DISK SPACE2.8 GB (EXCLUDING XCODE, IDE AND TOOLS)
TOOLSbash, curl, git 2.x, mkdir, rm, unzip, which

It is advisable to have at least 10-12 GB storage space free in your MacBook, because for flutter applications to work on both iOS and Android, you will need to install Xcode and Android studio both of which are very heavy applications

Installation In Mac Os

  1. Head over to https://flutter.dev/docs/get-started/install and choose MacOS as your operating system.
Flutter Installation
  • Download the flutter installation bundle.
Flutter Installation
  • Once the flutter bundle is installed in a zip file, unzip it. The folder that will be created in your MacBook is shown below.
Flutter Installation
  • This step is very important. Place your flutter folder to some place permanent. Go to Macintosh HD >> Users >> Your username and there create a new folder by the name of “Developer”. Now so the full path is- Macintosh HD >> Users >> your username >> Developer >> Flutter.
Flutter Installation
  • This next step now is from terminal from your MacOS. Go to spotlight search for terminal. In your terminal you will find your username preceded by a dollar sign ($). Most of the MacBooks now uses Z shell, so type .zshrc after the dollar sign and you will see something like this on your screen.
Flutter Installation
  • Now you have created or opened a rc file for your shell. We will move on to the next step in the process. That is to update the path using terminal.

Write “export   PATH=“$PATH:[PATH_TO_FLUTTER_GIT_DIRECTORY]/flutter/bin”” in your terminal. To save this path- write :wq!. This process will update the path for flutter applications.

Flutter Installation
  • The last step involved in the installation of flutter is to see whether your version is fine or not. To check that we need to again open the terminal and run flutter — version. The output should be something like this.
Flutter Installation

Setting Up Android For Flutter

Let’s see how android is installed for flutter in detail.

  1. Install android studio from https://developer.android.com/studio
Flutter Installation
  • Add flutter plugin to your android studio. In order to do that we need to open the newly installed android studio. Click on preferences which you can find in configure menu. When the page opens, you will need to go to the plugins which are available in left side menu. Search for the plugin named “Flutter”. Install it and enable it for use. Once this flutter plugin is installed, it will ask you to give permission to install dart as third party plugin. Give permission and android studio will be re-started with your newly installed plugins.
Flutter Installation
  • Once you have installed flutter and dart plugins in android studio, you will be able to see a new option for creating flutter projects.
Flutter Installation

Setting up android emulator for flutter

  1. First we need to create a new flutter project. For take we will have to write the Project name which in this case is flutter_app, the SDK path and location will by default be the one that you set up initially. You can also give a brief description about your application. Finish this process and proceed to the next step.
Flutter Installation
  • Now to set up the emulator we need to go to the tools >> AVD manager (where AVD stands for Android Virtual Device).
Flutter Installation
  • Select device that you want to use as your virtual device. In this case, we have used Pixel 3.
Flutter Installation
  • You can change the name of your virtual device (AVD). Choose other options as per your need and click finish.
Flutter Installation
  • Once you have finish creating your emulator. We will now see whether the android studio is now running our application on android virtual studio. First we will select the emulator >> run.
Flutter Installation

The application will run smoothly in AVD. This application is the default code which flutter provides whenever we create a new project. It only shows the number of times the plus button is clicked on the screen.

Setting Up Ios For Flutter

iOS setup is very simple for flutter. Let’s see how can we do that.

  1. Head over to the App Store in your MacBook. Search for Xcode and install it. In my laptop, this is already installed. Xcode needs a lot of storage space. Approximately 11.2 GB.
Flutter Installation
  • Now, go to https://flutter.dev/docs/get-started/install/macos#ios-setup and copy the arrowed code into your terminal.
Flutter Installation
  • We will set up simulator for iOS application testing. For that go to spotlight search >> simulator. If you are opening the simulator for the first time, it will take some time to load.
Flutter Installation
  • Once your simulator is set up, it will look something like this. In this MacBook, we have latest version apple OS- iPhone SE (2nd generation).
Flutter Installation
  • Next step is trying to run your default flutter application in iOS platform. For that we need to go to android studio >> select iPhone SE as your simulator >> run main.dart.
Flutter Installation
  • If you have followed all the steps correctly and precisely, your default flutter application will run just fine in your simulator.
Flutter Installation

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