How exactly is data transmitted in the presenter during information display?

In iOS architecture using the MVP (Model-View-Presenter) pattern, data is usually passed to the presenter through method calls or property settings. During the display phase, the presenter retrieves data from the model or service and formats it for display in the View.

For example, the presenter may have a method presentData(_:), which receives data models, transforms them into display structures (ViewModel), and passes them to the View via a protocol.

Example of passing data to the presenter:

protocol ViewInterface: AnyObject {
    func displayData(_ data: String)
}

class Presenter {
    weak var view: ViewInterface?

    func presentData(_ model: Model) {
        let formatted = "Name: \(model.name), Age: \(model.age)"
        view?.displayData(formatted)
    }
}

Thus, data is passed to the presenter as model objects, and the presenter transforms and passes them to the View for display.