（JavaFX）如何在构造函数和initialize（）之间调用类的方法？

Question

I have a class that implements an interface. From my base class, I'm creating an instance of the implemented class like this:

Class newTab;
TransactionTabInterface tabInterface = null;
try {
  newTab = Class.forName("[package] + title);
  tabInterface = (TransactionTabInterface) newTab.newInstance();
  tabInterface.setRootController(this);
} catch (Exception e) {
   e.printStackTrace();
}

This is necessary since I don't know the name of the class I need to instantiate ( title is determined elsewhere).

The problem I'm having is that, within the new class, I need access to rootController immediately. I have a method within the class that allows me to pass the rootController reference, as seen in my above code.

Normally, I would pass rootController to the constructor when instantiating the class, but I don't know how to pass a parameter to the constructor in the newInstance() call above.

EDIT : To be clear, the code above is in my main class, used to instantiate a new FXML controller (newTab).

Answer 1

on your newTab object you can call getConstructor(Class<?>...) with the types of your constructor to get a reference to that constructor with the desired args.

Then you can call this constructor's newInstance(Object...) method to call the constructor with arguments.