is now LinkedIn Learning!

To access courses again, please join LinkedIn Learning

All the same content you know and love

Plus, personalized course recommendations tailored just for you

All the same access to your Lynda learning history and certifications

Try LinkedIn Learning for free
Questions? Visit our help center.
Skip navigation

Expand layers, part 2

Expand layers, part 2: iOS App Development: Design Patterns for Mobile Architecture
Expand layers, part 2: iOS App Development: Design Patterns for Mobile Architecture

Our final step in breaking the logic into layers is ensuring all database, network, translation concerns are housed only within the specific layers. When an application is created with Core Data, XCode adds the Persistent Container in the app Delegate. This type of implementation detail needs to be isolated within the Core Data layer only. Translation to and from Core Data, as well as JSON form the web server needs to be isolated into a Translation Layer. The Translation Layer is then further broken into supporting classes the deal with specific Entities and forms of data (JSON, Core Data, SQLite, etc.). The important part is to break apart the logic into single responsibilities.

Resume Transcript Auto-Scroll
Skill Level Intermediate
1h 52m
Show More Show Less
Skills covered in this course
Developer Mobile Apps Mac OS iOS

Continue Assessment

You started this assessment previously and didn't complete it. You can pick up where you left off, or start over.

Start My Free Month

Start your free month on LinkedIn Learning, which now features 100% of courses. Develop in-demand skills with access to thousands of expert-led courses on business, tech and creative topics.

Start My Free Month

You are now leaving and will be automatically redirected to LinkedIn Learning to access your learning content.