Flutter Widgets Explained in Simple WordsÂ
What are Flutter Widgets?
Flutter is one of the most widely used technologies in mobile app development today. Flutter helps developers build beautiful applications for both Android and iOS using a single codebase. Because of its growing popularity, many aspiring developers are enrolling in a Flutter Training Course in Kochi to learn app development and improve their career opportunities in the software industry.Â
âWidgetâ is the first word that everyone who starts learning Flutter hears. For many, it can be a little confusing at first. But once you understand it properly, Flutter becomes very easy.
In this article, we will take a very simple look at what Flutter Widgets are, why they are so important, and how to use them.
First of all, what is Flutter?
Flutter is a UI toolkit made by Google. It can be used to build mobile apps, web apps, and desktop applications.
The biggest feature of Flutter is Everything is a Widget.That is, everything you see in a Flutter app is a widget.
Text
Button
Image
Icon
Padding
Row
Column
Screen layout. These are all widgets.
What is a Widget?
Simply put:
A Widget is a small building block of an app. Just like bricks are used to build a house, widgets are used to build a Flutter app.
For example:
To display the text âLoginâ â Text Widget
To display a button â ElevatedButton Widget
To display an image â Image Widget
To create a vertical layout â Column Widget
This way, each UI element will have a separate widget.
Real Life Example;
Imagine making a birthday cake.
Cake base
Cream
Candles
Chocolate decorations
All of these together make up a full cake.
Similarly, in a Flutter app:
Text widget
Button widget
Image widget
Container widget These together make up a complete screen.
There are two types of widgets in Flutter
1. Stateless Widget
2. Stateful Widget
The difference between these is very simple.
1. Stateless Widget
A stateless widget is a widget that cannot be changed.
Once displayed on the screen, it will remain the same.
Example:
Logo
Static text
Icon
Heading These usually do not change.
A stateless widget is a widget that cannot be changed.
Once displayed on the screen, it will remain the same.
Example:
Logo
Static text
Icon
Heading
These usually do not change.
2. Stateful Widget
A stateful widget is a widget that can change.
The widget will update when there is user interaction.
Example:
Like button
Counter
Dark mode toggle
Form inputs
Example:
Suppose a number increases when a button is clicked.
0 â 1 â 2 â 3 This is a stateful widget.
Why is Stateful Widget important?
In real apps, user interactions are very high.
Login forms
Shopping cart
Notifications
Chat screens
All of these use state change.
Therefore, Statefull widget is very important in Flutter.
Flutter Widgets Explained
Let's look at some widgets that Flutter learners should know first.
1. Text Widget
Used to display text on the screen.CommonÂ
2. Container Widget
A container is like a box. You can set:
color
height
Width Padding Margin all of these.
3. Row WidgetÂ
4. Column WidgetÂ
5. Image WidgetÂ
6. ElevatedButton WidgetÂ
How do Flutter Widgets work?
In Flutter, widgets work in a tree structure. That is, one widget can have another widget inside it. It's like a family tree.Inside the parent widget, there can be child widgets.
