Universal Feed

Overview

LMUniversalFeedScreen displays a universal feed screen with a topic selection bar and a list of posts, create post button.

UI Components

• contentStack: A LMStackView that holds the main content of the view controller.
• topicContainerView: A LMView that contains topicStackView.
• topicStackView: A LMStackView that holds the topic selection UI elements.
• topicSelectionButton: A LMButton that allows the user to navigate to the "All Topics" screen.
• topicCollection: A LMCollectionView that displays the filtered topics.
• clearButton: A LMButton that allows the user to clear the filtered topics.
• postList: An instance of LMFeedPostListScreen that displays the list of posts.
• createPostButton: A LMButton that allows the user to create a new post.
• createPostLoaderView: A LMFeedAddMediaPreview view that displays a loading animation during post creation.

Methods

• postCreationInProgress(notification:): Handles the post creation in progress notification.
• postCreationSuccessful(): Handles the post creation successful notification.
• postError(notification:): Handles post creation and edit errors.

Action Handlers

• didTapAllTopicsButton(): Navigates to the Topic Selection.
• didTapClearButton(): Clears the selected topics.
• didTapNewPostButton(): Navigates to the "Create Post" screen.
• didTapNotificationButton(): Navigates to the notification screen.

Customisation

CustomUniversalFeedScreen.swift

class CustomUniversalFeedScreen: LMUniversalFeedScreen {
   override func setupAppearance() {
       super.setupAppearance()
       tableView.backgroundColor = .lightGray
   }
}

AppDelegate.swift

func application(_ application: UIApplication, willFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool {
   Components.shared.universalFeedScreen = CustomUniversalFeedScreen.self
   // ...
   return true
}