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Create Post

Overview​

The LMFeedCreatePostScreen allows users to create posts by adding text, images, videos, and documents. It provides various UI components and functionalities to facilitate the post creation process.

LMFeedCreatePostScreen

File Location:
LMFeedCreatePostScreen.swift

Functionality​

Protocols Implemented​

UI Components​

  • containerStackView: A vertical stack view containing the scroll view and add media stack.
  • scrollView: A scroll view that contains the post creation elements.
  • scrollStackView: A vertical stack view within the scroll view, containing the header view, topic view, input text view, link preview, media collection view, page control, document table view, and add more button.
  • headerView: A view displaying the user's profile image and username.
  • topicView: A view for displaying and selecting topics for the post.
  • inputTextView: A text view for entering the post content and mentioning users.
  • linkPreview: A view for displaying a preview of any links entered in the text view.
  • mediaCollectionView: A collection view for displaying added images and videos.
  • mediaPageControl: A page control for navigating between media items.
  • documentTableView: A table view for displaying added documents.
  • addMoreButton: A button for adding more media or documents.
  • addMediaStack: A stack view containing tabs for adding photos, videos, and documents.
  • videoPlayer: A player view controller for displaying videos.
  • taggingView: A view for displaying and selecting mentioned users.
  • createPostButton: A navigation bar button for creating the post.

Data Variables​

  • documentAttachmentData: An array containing the data models for document preview cells.
  • documenTableHeight: A constraint for adjusting the height of the document table view.
  • documentAttachmentHeight: The fixed height of each document preview cell.
  • taggingViewHeight: A constraint for adjusting the height of the tagging view.
  • inputTextViewHeightConstraint: A constraint for adjusting the height of the input text view.
  • textInputMinimumHeight: The minimum height of the input text view.
  • textInputMaximumHeight: The maximum height of the input text view.
  • mediaAttachmentData: An array containing the data models for media (image and video) cells.
  • documentPicker: A document picker view controller for selecting documents.

Methods​

  • setupAddMedia(): Configures the appearance of the add media tabs.
  • setupInitialView(): Hides or shows various UI elements based on the initial state.
  • setupProfileData(): Configures the user's profile image and username in the header view.
  • observeCreateButton(): Enables or disables the "Create Post" button based on the presence of media, text, or documents.
  • openImagePicker(_:isFirstTime: Bool, maxSelection: Int): Opens the system image picker for selecting images or videos.
  • openDocumentPicker(): Opens the system document picker for selecting documents.

Action Handlers​

  • didTapAddPhoto(): Called when the "Add Photo" tab is tapped.
  • didTapAddVideo(): Called when the "Add Video" tab is tapped.
  • didTapAddDocument(): Called when the "Add Document" tab is tapped.
  • didTapAddMoreButton(): Called when the "Add More" button is tapped.
  • didTapCreateButton(): Called when the "Create Post" button is tapped.

Customization​

CustomCreatePostScreen.swift
class CustomCreatePostScreen: LMFeedCreatePostScreen {
  override func setupAppearance() {
      super.setupAppearance()
      mediaCollectionView.backgroundColor = .lightGray
  }
}
AppDelegate.swift
func application(_ application: UIApplication, willFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool {
  Components.shared.createPostScreen = CustomCreatePostScreen.self
  // ...
  return true
}