flutter future
// Step 1: Set the variable in future<void>
// Step 2: Make sure to use the variable on
// async void who await the future
String? test;
Future<void> fetchUserOrder() {
// Imagine that this function is fetching user info from another service or database.
return Future.delayed(const Duration(seconds: 1), () => test = "Large Latte");
}
void main() async {
await fetchUserOrder();
print('Fetching user order... $test');
}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);
}Copyright © 2021 Codeinu
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