Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Android

Which option best suits the MVP model

While I was refactoring some code I had a doubt.

If some error happens in the model class, would it be better to call a method of the model class from the presenter class to check if something went wrong, or instead call a method of the presenter class from the model class when the error happens?

For example: Call a method of a model class (from presenter class)

if (modelClass.isWhateverRight()) //Do something

Or

Call a method of the presenter class (from model class)

if (something) presenterClass.showMessage();

Sorry for the very bad explanation, thanks!