How do you check if an async void method is completed in Dart?
Câu trả lời
To check if an async void method is completed in Dart, you can use the Future.catchError() method to handle any errors that might occur during the execution of the async void method. Here's an example:
dartCopy
void myAsyncVoidMethod() async {
try {
// Perform some asynchronous operation
await someAsyncOperation();
} catch (error) {
// Handle any errors that occur during the async operation
print('Error: $error');
}
}
void main() {
myAsyncVoidMethod().whenComplete(() {
// This callback is executed when the async void method completes
print('myAsyncVoidMethod completed');
}).catchError((error) {
// This callback is executed if an error occurs during the async void method
print('Error: $error');
});
}
In this example:
The myAsyncVoidMethod() is an async void method that performs some asynchronous operation and handles any errors using a try-catch block.
