Cupertino widget and Attributes
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Cupertino widgets in Flutter are specifically designed to mimic the visual design language of iOS. These widgets provide a native and consistent look and feel for iOS applications, allowing developers to create seamless cross-platform experiences.
Key Cupertino Widgets and Attributes:
CupertinoButton:
A button designed for Cupertino-style interfaces.
Attributes: child, onPressed, padding, color, and more.
CupertinoTextField:
A text field styled for Cupertino interfaces.
Attributes: controller, placeholder, prefix, suffix, and more.
CupertinoNavigationBar:
Represents the top navigation bar in Cupertino style.
Attributes: middle, leading, trailing, backgroundColor, and more.
CupertinoActivityIndicator:
An iOS-style activity indicator (spinner).
Attributes: animating, radius, and valueColor.
Example Usage:
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: MyHomePage(),
);
}
}
class MyHomePage extends StatelessWidget {
@override
Widget build(BuildContext context) {
return CupertinoPageScaffold(
navigationBar: CupertinoNavigationBar(
middle: Text('Cupertino Widgets Example'),
),
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
CupertinoButton(
child: Text('Press me'),
onPressed: () {
// Button press logic
},
color: CupertinoColors.activeBlue,
),
SizedBox(height: 20),
CupertinoTextField(
placeholder: 'Enter text',
onChanged: (value) {
// Text field change logic
},
padding: EdgeInsets.all(12.0),
),
SizedBox(height: 20),
CupertinoActivityIndicator(
animating: true,
radius: 20.0,
),
],
),
),
);
}
}
In this example, we create a Flutter app using Cupertino widgets. The CupertinoPageScaffold sets up a basic Cupertino-style page structure, and we use various Cupertino widgets like CupertinoButton, CupertinoTextField, and CupertinoActivityIndicator to showcase the iOS-style UI elements. The CupertinoNavigationBar provides a native-looking top navigation bar. This demonstrates how Cupertino widgets enable developers to design applications with a consistent and familiar appearance on iOS devices.
