Mobile

This article gives you a practical Flutter example of implementing FractionallySizedBox, a widget that sizes its child to a fraction of the total available space. Here’s its constructor: Example This sample app contains a yellow box…

A few examples of using the every() method (of the Iterable class) in Dart (and Flutter as well). The purpose of this method is to check if every element of a given iterable satisfies one or…

In Dart, the reduce() method (of the Iterable class), as its name describes itself, executes a “reducer” callback function (provided by you) on each element of the collection, in order, passing in the return value from…

The for loop is one of the most important features in many programming languages including Dart. 1. For-in syntax Example: Output: 2. A different syntax of the “for” loop in Dart Example: Output: Further reading: You…

An OutlinedButton in Flutter is a labeled child displayed on a (zero elevation) Material widget that can react to touches by filling with a background color. OutlinedButton is the replacement for OutlineButton, which is now depreciated…

Buttons are an essential component of every Flutter mobile and web application. In this article, we are going to take a look at the TextButton widget. You will learn how to implement text buttons and how…

You can run your Flutter project on an Android emulator and an iOS simulator at the same time by running this: Note that you must start your Android emulator and iOS simulator before executing the command…

Done. Further reading: How to reset Docker Desktop How to Install Docker Compose on Ubuntu 21.04 and 21.10 Start, Pause, Restart, Stop, and Delete a Docker Container Docker: How to Name or Rename a Container Docker:…

Most mobile and web applications have buttons that allow users to press to interact. In Flutter, you can use the ElevatedButton widget to create elevated buttons. ElevatedButton is the replacement for RaisedButton, which is now obsolete…

This article walks you through 4 techniques to vertically center a child widget inside a Container in Flutter. Using the alignment property Set the alignment property to Alignment.center, Alignment.centerRight, or Alignment.centerLeft. Example Output: Using a Center…

This straightforward, concise tutorial shows you how to embed a Youtube video into a Flutter mobile app. We’ll use youtube_player_flutter, one of the most popular packages for this stuff. Setting up the plugin Add this to…

Problem When developing a Flutter app for iOS and using some packages to embed Youtube videos, Google Maps, or something similar to these ones, you may see the following error message: Or: Solution To get rid…