99ridho / ios-coordinator-pattern-example

Simple iOS coordinator pattern.

Simple iOS Coordinator Pattern Example

This code represent an example to help me to deliver my talk regarding to Coordinator Pattern.

Why using coordinator pattern? (according to my own experience)

• Separation of concern, because VC doing many things
• Hard to change the flow because navigation flows are handled on VC
• Hard to test the flow correctness
• VC tend to hold unneccessary dependency during passing data in certain flow

So, the purpose of coordinator is...

• Handle the navigation flows
• Manage the view controllers in one flow
• Manage data that can be used on other controllers in one flow

How VC and coordinator communicates

• Using delegate
• Using closure / blocks

There's still available for improvements, such as

• Isolating UINavigationController specific things into one another layer for better testability
• View Controllers & Coordinator creation using factory & also abstracting them to adhere Open/Closed principle