Announcing New Course: Stateful vs Stateless Widgets in Flutter!

Announcing new Pro Course: Stateful vs Stateless Widgets in Flutter!

Widgets are massively central to much of your Flutter Development. But — when it comes to interacting with your UI or doing anything else dynamic in your app, you'll need to be able to balance out the use of state as well as managing your UI. It's a lot!

Get your head around managing state, lifecycle, keys and more in our new Stateful vs Stateless Widgets in Flutter course!

Keep reading to hear more about it from course instructor Emmanuel Okiche:

Why should I take your Stateful vs Stateless Widgets in Flutter course?

"In Flutter, everything is a widget, so knowing the differences between stateful and stateless widgets is key while building apps. After taking this course, you'll know the major differences between both types of widgets.

You'll also cover about in-built Flutter widgets and you'll see why they are stateful (or stateless), and you'll use this knowledge to decide if your own widgets should be stateful or stateless while building your apps."

How can this course help with a common pain point in Flutter development?

"Creating drag-and-drop features or UIs that can be reordered is easy with the use of keys. You use keys to help identify widgets in your tree, and they're particularly useful when working with a list of similar items.

I use keys when working with the AnimatedList widget, as this widget lets me add animation effects when adding or removing items from the list. In this course, you'll learn how keys can affect a stateful widget."

Can you please share a cool Flutter widget tip with us?

"Working with lifecycle events are super-simple. The State class of the Stateful widget provides you with easy-to-use methods you can override to trigger actions at different points in a widget's life. Take this code for example:

The first block of code listens for changes in the animation values as soon as the widget is mounted. This is done inside of initState, and its method is called as soon as the widget is mounted. You perform any initialization-related actions or set up listeners in here.

These listeners that you set up take up some memory. The dispose method will be called when the widget is removed permanently from the widget tree. In this method, you take care of cleanup such as disposing of controllers and unsubscribing from streams. This cleanup helps you to prevent memory leaks in your apps when the widget no longer exists in the tree."

Is there anything else we should know about your Stateful vs. Stateless Widgets course?

"Many Flutter beginners get confused about what the widget and element trees are all about. We'll get to demystify them with the use of simple examples for beginners to get a good understanding of how stateless and stateful widgets behave in these trees. We'll do this with the help of examples that could be transferred to any real world app you're building."

Hey — the new Ultimate Subscription gets you access to both videos and books, all in the same subscription. Interested? Click here to learn more ➜

Emmanuel's Stateful vs Stateless Widgets in Flutter course is available for Pro subscribers now!

— Ray