Dart 2.17 how to#
Dart 2.17 update#

To determine the color and its name I use the following enum: import 'package:flutter/material.dart' Īs you can see, this enum defines what color it is, and through an extension I add its name and what MaterialColor it refers to. It consists of 3 different parts painted in a different color, with the name of the color in the center of the container.

To start with, I'll show you the test application I've created in the previous version of Flutter, version 2.10.5: Flutter 2

Dart 2.17 update#

Then I am going to update it to Flutter 3 and I will show you the changes that we should make to this application to apply each one of these improvements, in this graphical way you will easily understand what are those changes and how you can benefit from them in your applications developed with Flutter 3 and Dart 2.17. In order to easily see and understand what are these improvements, I am going to present you a very simple application created with Flutter 2. In this article I am going to delve into the most notable improvements that Dart 2.17 brings, which is the enhancement of enums, the super initializers and the removal of order constraint for named parameters. Now we want to create webScreenLayout and mobileScreenLayout widgets and accept these two widgets using a constructor as shown.In this blog I have previously covered the incredible performance improvements affecting Flutter for web apps and the possibility of running macOS applications natively in Apple Silicon processors. Our web screen size starts at 600 resolutions so we will display web layout when the screen size is at 600 and above. Now create a file named dimensions.dart in the utils folder. Using constraints we can get the screen width. LayoutBuilder will give us a builder function which then return to us a context and constraints. We want to return a widget named ResponsiveLayout which helps in creating responsive layout. Create a stateless widget for now, later we can use a stateful widget when we fetch dynamic contact from backend. Make a folder named layout and inside that create new file called layout.dart. The MediaQuery class in Flutter may be used to do this. 💡 For simplicity we are using fixed numbers for screen resolution but when designing user interfaces for mobile apps, always avoid hardcoding numbers for widget sizes and instead utilize percentages. Firebase Crashlytics is a lightweight, realtime crash reporter that helps you track, prioritize and fix stability issues that erode your app quality. Flutter Crashlytics plugin helps to track real-time fatal errors with the same set of features through Firebase’s real-time crash reporting service.

Over the last few releases Flutter team have been working with Firebase to expand and provide better integration for Flutter as a first-class integration. Majority of Flutter developers use Firebase in their apps.

Dart 2.17 how to#

Read more about How to connect flutter with firebase backend. This is not a surprise for any of us as we know both these products are belongs to one company, Google. Data storage, cloud functions, authentication and app testing for different platform requires comprehensive third-party tools such as Firebase, AWS Amplify and AppWrite.įor example, Firebase is an amazing back-end platform backed by Google which accelerate app development process providing powerful backend infrastructure for the applications.įlutter and Firebase work hand-in-hand to help you build web and mobile apps. A collection of tools is always necessary to have when building and launching applications.