MVC design pattern

1. Multidirectional Data Flow
MVP Design Pattern
Ashari Juang - Qiscus iOS

2. Multidirectional data flow
View is updated when data Model changes
View <> Model

3. Implementation
The MVP pattern was first introduced in 1996 by Mike Potel.
View < Presenter > Model

4. MVP
1. the presenter contains the logic to handle user interactions
2. the presenter has no dependencies to UIKit
3. the view delegates will interact to the presenter
4. the presenter communicates with model layer, converts the data
to UI friendly format, and updates the view
Source : http://iyadagha.com/using-mvp-ios-swift/

5. How to communicate
Presenter and View

6. Protocol
The protocol can then be adopted by a class,
structure, or enumeration to provide an actual
implementation of those requirements

7. View
• Initiate presenter to
view Controller
• attach view to
presenter (create
connection)
• call action from
presenter

8. Extention
• Extension for grouping
function
• ChatView is a protocol,
listen all event from
presenter

9. Struct (not Model) for View
4. … converts the data to UI friendly format …

10. Any Question ?
“Thanks You”
Please try sample code
https://github.com/asharijuang/MVP