What common problems are faced when implementing MVP?

When implementing MVP (Model-View-Presenter), the following problems are often encountered:

• Difficulty in separating responsibilities: Beginners may mix the logic of View and Presenter, leading to violations of MVP principles.
• Excessive coupling: If the Presenter depends directly on specific implementations of View, it complicates testing.
• Lifecycle management: In iOS, it is challenging to correctly handle the ViewController's lifecycle to avoid memory leaks caused by strong references between Presenter and View.
• Testing: Without proper abstraction, it is difficult to write unit tests for the Presenter.
• Redundant code: Sometimes, MVP leads to a large number of classes and interfaces, which complicates maintenance.

To avoid these problems, it is important to strictly follow the principles of responsibility separation, use weak references for View in the Presenter, and apply protocols for abstraction.