Dart language asynchronous ??

import 'dart:async';

void main() {
  final myFuture = Future(() {
    print("Hello from the future!");
    return true;
  });

  print("Done!");
}

Source: rahmanfadhil.com

Future as a parameter with async in flutter

FloatingActionButton(
  onPressed: () => getImageFromCam(index),
  tooltip: 'Pick Image',
  child: Icon(Icons.add_a_photo),
);

...

Future<void> getImageFromCam(int index) async {
  // Do whatever you want with `index`.
  final image = await ImagePicker.pickImage(source: ImageSource.camera);
  setState(() => _image = image);
}

Source: stackoverflow.com

Similar codes

6 votes257 views2 answers
Make listview not scrollable flutter
Dart
8 votes216 views3 answers
Prevent text overflow flutter
Dart
7 votes216 views3 answers
Flutter reverse list
Dart
3 votes221 views3 answers
Flutter tooltip
Dart
1 vote215 views1 answer
Flutter center widget
Dart
0 vote225 views1 answer
The argument type 'Color?' can't be assigned to the parameter type 'MaterialColor?'.
Dart
4 votes208 views1 answer
Flutter Insecure HTTP is not allowed by platform
Dart
0 vote229 views1 answer
Navigator.pushandremoveuntil flutter
Dart
0 vote228 views1 answer
Inr symbol in flutter
Dart
0 vote230 views1 answer
Next row column in flutter
Dart