Dynamic class method invocation in Dart
You can use Dart Mirror API to do such thing. Mirror API is not fully implemented now but here's how it could work :
import 'dart:mirrors';
class Page {
String name;
}
main() {
final page = new Page();
var value = "value";
InstanceMirror im = reflect(page);
im.setField("name", value).then((_){
print(page.name); // display "value"
});
}
There are several things you can achieve with Mirrors.
Here's an example how to set values of classes and how to call methods dynamically:
import 'dart:mirrors';
class Page {
var name;
method() {
print('called!');
}
}
void main() {
var page = new Page();
var im = reflect(page);
// Set values.
im.setField("name", "some value").then((temp) => print(page.name));
// Call methods.
im.invoke("method", []);
}
In case you wonder, im
is an InstanceMirror
, which basically reflects the page
instance.
There is also another question: Is there a way to dynamically call a method or set an instance variable in a class in Dart?
You can use Serializable
For example:
import 'package:serializable/serializable.dart';
@serializable
class Page extends _$PageSerializable {
String name;
}
main() {
final page = new Page();
var attribute = "name";
var value = "value";
page["name"] = value;
page[attribute] = value;
print("page.name: ${page['name']}");
}