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Chatroom Screen

Overview​

The LMChatMessageListViewController is responsible for displaying and managing a list of chat messages. It utilizes various UI components to present message data, handle user interactions, and manage the chat input functionality.

File Location:
LMChatMessageListViewController.swift

Functionality​

Protocols Implemented​

  • LMChatMessageListViewDelegate: Manages user interactions with the message list.
  • LMChatInputBarDelegate: Handles events related to the chat input bar.
  • LMChatMessageCellDelegate : Manages interactions with individual message cells.
  • LMMessageReactionDelegate: Handles message reaction events.
  • LMChatTypingIndicatorDelegate: Manages typing indicator functionality.

UI Components​

  • containerView: An instance of LMChatMessageListView that displays the list of messages.
  • inputBarView: An instance of LMChatInputBarView for message input functionality.
  • typingIndicatorView: An instance of LMChatTypingIndicatorView to show typing status.

Properties​

  • messageActionHandler: Handles various message-related actions.
  • chatroomDetailManager: Manages chatroom details.

Methods​

  • setupBindings(): Establishes data bindings between the view model and UI components.
  • setupKeyboardHandling(): Configures keyboard event handling.
  • loadMessages(showLoader:): Loads messages, optionally displaying a loader.
  • scrollToBottom(animated:): Scrolls the message list to the bottom.
  • handleLongPress(_:): Manages long press gestures on messages.

Customization​

CustomMessageListViewController.swift
class CustomMessageListViewController: LMChatMessageListViewController {
    override func setupAppearance() {
        super.setupAppearance()
        view.backgroundColor = .lightGray
    }

    override func setupViews() {
        super.setupViews()
        inputBarView.backgroundColor = .systemBlue
    }
}
AppDelegate.swift
func application(_ application: UIApplication, willFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool {
    LMUIComponents.shared.messageListScreen = CustomMessageListViewController.self
    // ...
    return true
}