Flutter Tutorial for Beginners 2026: Build Your First Mobile App UI

Welcome to the first video on the channel! 🚀

In this tutorial, we dive deep into Flutter, Google’s powerful cross-platform framework, to show you how to build a clean mobile app UI for both iOS and Android using a single code base.

Whether you are a complete beginner or looking to refresh your widget knowledge, this video covers the essential building blocks you need to start your development journey.

In this video, you will learn:

Project Setup: How to create a new Flutter project in VS Code and run it on an emulator.

Core Concepts: The difference between Stateless and Stateful widgets.

The Scaffold: Understanding the "Main Screen" of your app.

UI Customization: How to style an AppBar, use the Text widget, and customize Containers with colors and rounded corners.

Layout Basics: Using Columns and Rows to organize your app's content.

Timestamps:

0:00 – Introduction to the channel and the Flutter UI tutorial.
0:15 – Definition of Flutter: A cross-platform framework for iOS and Android.
0:42 – Creating a new Flutter project in VS Code using the command palette.
1:28 – Exploring the boilerplate code and the main.dart file.
1:45 – Launching the iOS emulator to run the application.
2:41 – Explaining the main() function and the execution flow.
2:54 – Comparing Stateless vs. Stateful widgets.
3:29 – Understanding the MaterialApp class and its basic parameters.
4:10 – Reviewing the MyHomePage class and the counter increment logic.
4:53 – What is a Scaffold? Understanding the main screen architecture.
5:10 – Breaking down the AppBar, Body, and FloatingActionButton.
6:26 – Running the app: Demonstrating the default counter functionality.
7:10 – Customizing the UI: Changing the AppBar title text.
7:45 – Understanding parameterized classes and passing titles.
8:33 – Using "Hot Reload" to see instant changes.
9:10 – Styling Text: Adjusting fontSize and fontWeight.
10:15 – Working with colors in the TextStyle widget.
10:49 – How to remove the "Debug" banner from the top corner.
11:21 – Adding a leading icon (menu icon) to the AppBar.
12:15 – Adjusting CenterTitle and Elevation properties.
13:00 – Layout basics: Moving from Column to Row and back.
14:13 – Implementing the Container widget for custom layouts.
14:55 – Using BoxDecoration for colors and BorderRadius.
15:35 – Applying Padding (Symmetric and All) to clean up the UI.
16:55 – Conclusion and homework assignment: Redesigning the screen.

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Видео Flutter Tutorial for Beginners 2026: Build Your First Mobile App UI канала Onlycodes