Andrea Bizzotto 🇺🇦
@codewithandrea.com
920 followers 210 following 494 posts
Flutter GDE ❖ I share tips about Dart & Flutter app development. Wanna learn Flutter? 👉 codewithandrea.com
Flutter GDE ❖ I share tips about Dart & Flutter app development. Wanna learn Flutter? 👉 codewithandrea.com
![// Example 1
String? lunch = isTuesday ? 'tacos!' : null;
// before
var withoutNullAwareElements = [
if (lunch != null) lunch,
if (lunch?.length != null) lunch!.length,
if (lunch?.length case var length?) length,
];
// after
var withNullAwareElements = [
?lunch,
?lunch.length,
?lunch.length,
];
// Example 2
Stack(
fit: StackFit.expand,
children: [
const AbsorbPointer(),
// before
if (widget.child != null) widget.child!,
// after
?widget.child,
],
)](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:5jbxvfe4etepz54qhd7a5zlv/bafkreieruqxhcraqyyy3ualwjojno5vyyoq5tzms7utbfb6cr7f2ckcsje)
![void logName(String? first, String? middle, String? last) {
// Before Dart 3.8
final fullName = [
if (first != null) first,
if (middle != null) middle,
if (last != null) last,
];
// Since Dart 3.8
final fullName = [
?first,
?middle,
?last,
];
log(fullName.join(' '));
}
logName('Andrea', null, 'Bizzotto');
// [log] Andrea Bizzotto](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:5jbxvfe4etepz54qhd7a5zlv/bafkreie53bufsidhemjvps5u5q7ahtvpracoz6f65ou2srwrkventp7ylm)
![Material 3 supports 5 types of buttons.
Here are the corresponding widgets in Flutter:
Column(
spacing: 8,
children: <Widget>[
ElevatedButton(onPressed: () {}, child: Text('Elevated')),
FilledButton(onPressed: () {}, child: Text('Filled')),
FilledButton.tonal(onPressed: () {}, child: Text('Filled Tonal')),
OutlinedButton(onPressed: () {}, child: Text('Outlined')),
TextButton(onPressed: () {}, child: Text('Text')),
],
)](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:5jbxvfe4etepz54qhd7a5zlv/bafkreiezyflrdmfqtvhbe2l4gqrv4bhynirozlfeylsoh4v3yrcfrov57y)
