“How does an app transition from one view controller to another?”. This question is common and puzzling regarding iOS development. There are many answers, as every architecture has different implementation variations. Some do it from within the implementation of a view controller, while some use a router/coordinator, an object connecting view models. To better answer the question, we are building XCoordinator, a navigation framework based on the Coordinator pattern. It's especially useful for implementing MVVM-C, Model-View-ViewModel-Coordinator:Ĭreate an enum with all of the navigation paths for a particular flow, i.e.
(It is up to you when to create a Route/Coordinator. As our rule of thumb, create a new Route/Coordinator whenever a new root view controller, e.g. a new navigation controller or a tab bar controller, is needed.). Whereas the Route describes which routes can be triggered in a flow, the Coordinator is responsible for the preparation of transitions based on routes being triggered. We could, therefore, prepare multiple coordinators for the same route, which differ in which transitions are executed for each route. In the following example, we create the UserListRoute enum to define triggers of a flow of our application. UserListRoute offers routes to open the home screen, display a list of users, to open a specific user and to log out. The UserListCoordinator is implemented to prepare transitions for the triggered routes. When a UserListCoordinator is shown, it triggers the. Appdelete make tab bar vc root window swift 4 mac#.Appdelete make tab bar vc root window swift 4 Pc#.Appdelete make tab bar vc root window swift 4 code#.Appdelete make tab bar vc root window swift 4 for mac#.Appdelete make tab bar vc root window swift 4 how to#.
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