Post List View

Overview

LMFeedPostListScreen is used to displays a list of posts in a feed.

Protocols

LMFeedPostListVCFromProtocol

Defines methods that are triggered from LMFeedPostListScreen and handled by the parent view controller conforming to it.

• tableViewScrolled(_ scrollView: UIScrollView): Gives a callback to the parent view controller that the post list view has been scrolled.
• postDataFetched(isEmpty: Bool): Gives a callback to parent view controller that data has been fetched.

LMFeedPostListVCToProtocol

Defines methods that are triggered from the parent view controller and handled by LMFeedPostListScreen.

• loadPostsWithTopics(_ topics: [String]): Tells the LMFeedPostListScreen to fetch data with the selected topic ids.

Protocols Implemented

• LMFeedPostHeaderViewProtocol
• LMFeedPostFooterViewProtocol
• LMPostWidgetTableViewCellProtocol
• LMFeedLinkProtocol
• LMFeedPostDocumentCellProtocol

UI Components

• postList: A LMTableView that displays the list of posts.
• refreshControl: A UIRefreshControl for allowing the user to pull-to-refresh the feed.
• emptyListView: A LMFeedNoPostWidget that is displayed when there are no posts in the feed.

Methods

• pullToRefresh(): Handles the pull-to-refresh action of tableview by fetching the initial page of the feed.

Customisation

CustomTopicSelectionScreen.swift

class CustomPostListScreen: LMFeedPostListScreen {
   override func setupAppearance() {
       super.setupAppearance()
       tableView.backgroundColor = .lightGray
   }
}

AppDelegate.swift

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