Flutter’s FloatingActionButton widget is a popular and versatile user interface element that provides a floating circular button in your app.
It is primarily used to trigger common and important actions within the application. The FloatingActionButton is often positioned above the main content, allowing easy access for the user to perform specific tasks without navigating through the app’s UI hierarchy.
Key features and characteristics of the FloatingActionButton:
- Shape and Design: The FloatingActionButton typically has a circular shape, although it’s customizable. It includes an icon or text that represents the action it performs. The button is elevated above the content, giving it a floating appearance.
- Positioning: The FloatingActionButton can be positioned using a FloatingActionButtonLocation, which determines its placement on the screen. Some commonly used locations are FloatingActionButtonLocation.endFloat, FloatingActionButtonLocation.centerFloat, FloatingActionButtonLocation.endDocked, etc.
- Customization: The widget allows for various customizations, such as changing the background color, foreground color, elevation, and size. This ensures that the button fits well with the app’s overall design.
- Interactivity: When a user taps on the FloatingActionButton, it triggers a predefined action. This could be anything from creating a new item to sharing content on social media or initiating a phone call. Developers can specify an onPressed callback function to handle the button tap event.
- Hero Animation: When transitioning between screens, the FloatingActionButton can be animated using a Hero Animation. This provides a smooth and visually appealing transition, making the app feel more polished.
- Extended version (FloatingActionButton.extended): Flutter also provides an extended version of the FloatingActionButton, which includes both an icon and text. This is useful when you need to show a brief description of the action the button performs
Now Create Flutter FloatingActionButton Widget
FloatingActionButton(
foregroundColor: Colors.white,
elevation: 5,
tooltip: 'Save',
hoverColor: Colors.red,
splashColor: Colors.green,
child: const Icon(Icons.save),
onPressed: () {},
),FloatingActionButton Widget
import 'package:flutter/material.dart';
main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MaterialApp(
home: FirstPage(),
);
}
}
class FirstPage extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text("Instructive Tech"),
backgroundColor: Colors.green,
),
floatingActionButton: FloatingActionButton(
foregroundColor: Colors.white,
elevation: 5,
tooltip: 'Save',
hoverColor: Colors.red,
splashColor: Colors.green,
child: const Icon(Icons.save),
onPressed: () {},
),
);
}
}
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