iOS MVC Architecture for Mobile Applications
Explore the iOS MVC architecture in mobile app development at TalTech IT College. Learn how controllers, models, and views work together seamlessly, ensuring effective communication and structured design. Dive into the key principles and logical units that define this architectural pattern.
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Presentation Transcript
1 Native Mobile Applications - ICD0017 TalTech IT College, Andres K ver, 2019-2020, Fall semester Web: http://enos.Itcollege.ee/~akaver/MobileApps Skype: akaver Email: akaver@itcollege.ee
iOS - MVC 2 CONTROLLER MODEL VIEW Program is divided into 3 logical units
iOS - MVC 3 CONTROLLER What your application is MODEL VIEW Program is divided into 3 logical units
iOS - MVC 4 How your Model is presented to the user (UI logic) CONTROLLER What your application is MODEL VIEW Program is divided into 3 logical units
iOS - MVC 5 How your Model is presented to the user (UI logic) CONTROLLER What your application is UI Components and layout MODEL VIEW Program is divided into 3 logical units
iOS - MVC 6 CONTROLLER MODEL VIEW Communication management is the key
iOS - MVC 7 CONTROLLER MODEL VIEW Controlles can communicate with their Model
iOS - MVC 8 CONTROLLER MODEL VIEW Controlles can communicate with their Model and View
iOS - MVC 9 CONTROLLER MODEL VIEW Model and View should never speak to each other!!!!
iOS - MVC 10 CONTROLLER MODEL VIEW Can View communicate vith Controller?
iOS - MVC 11 target CONTROLLER MODEL VIEW Communication is blind and structured. Controller can specify a target on itself and hand out an action to the View. View sends the action when events happen in UI
iOS - MVC 12 target CONTROLLER will should did MODEL VIEW Sometimes View needs to synchronize with the Controller. Will, should, did, . (willScroll, shouldScroll, didScroll)
iOS - MVC 13 will target should did CONTROLLER MODEL VIEW Controller sets itself as the View s delegate. Delegate is set via protocol.
iOS - MVC 14 will target should did CONTROLLER MODEL VIEW data at count Views do not own the data they display. If needed, they have a protocol to acquire it.
iOS - MVC 15 will target should did CONTROLLER data at count MODEL VIEW Controllers are almost always that data source (not Model).
iOS - MVC 16 will target should did CONTROLLER data at count MODEL VIEW Controllers interpret/format Model information for View.
iOS - MVC 17 will target should did CONTROLLER data at count MODEL VIEW Can the Model talk directly to the Controller? No, they are UI independent. But sometimes Model (network) needs to inform, that data has changed.
iOS - MVC 18 will target should did CONTROLLER data at count Notification & KVO MODEL VIEW Broadcast (messaging) mechanism is used for this. Interested parties can subscribe to these messages (Controllers and Models).
