Overview The User struct represents a user profile in the app, containing personal information, content references, and social engagement statistics.
Properties Unique identifier for the user, typically from Firebase Authentication
Display name of the user shown on their profile and posts
User’s bio or profile description
Douyin (TikTok) style numeric ID for the user account
Array of interest tags or categories associated with the user
URL or reference string to the user’s profile picture
Array of post IDs created by this user
Array of post IDs that the user has liked
Number of users following this user
Number of users this user is following
Total number of likes received across all user’s posts
Number of mutual connections or friends
Initialization let user = User ( uid : "user123" , name : "Jane Smith" , description : "Content creator | Dance enthusiast 💃" , douyinID : 987654321 , tags : [ "dance" , "music" , "comedy" ], profilePic : "https://example.com/profiles/jane.jpg" , posts : [ "post1" , "post2" , "post3" ], likedPosts : [ "liked1" , "liked2" ], followerCount : 15420 , followCount : 234 , likeCount : 89500 , friendsCount : 56 )
Usage Examples Creating a New User Profile import Foundation // Create a new user after authentication let newUser = User ( uid : firebaseUser. uid , name : "New Creator" , description : "Just joined!" , douyinID : generateDouyinID (), tags : [], profilePic : "" , posts : [], likedPosts : [], followerCount : 0 , followCount : 0 , likeCount : 0 , friendsCount : 0 )
Updating User Statistics // When a user gets a new follower var user = currentUser user. followerCount += 1 // When a user creates a new post user. posts . append (newPost. id ) // When a user likes a post user. likedPosts . append (post. id )
// Profile view controller class ProfileViewController : UIViewController { var user: User ! override func viewDidLoad () { super . viewDidLoad () nameLabel. text = user. name bioLabel. text = user. description douyinIDLabel. text = "@ \( user. douyinID ) " followerCountLabel. text = " \( user. followerCount ) " followingCountLabel. text = " \( user. followCount ) " likesCountLabel. text = " \( user. likeCount ) " // Load profile image if let url = URL ( string : user. profilePic ) { loadImage ( from : url) } // Display user tags tagsCollectionView. tags = user. tags } }
Social Metrics Show Understanding User Metrics
The User model tracks several social engagement metrics:
followerCount : Users who follow this accountfollowCount : Accounts this user followslikeCount : Total likes across all posts by this userfriendsCount : Mutual followers or connections These metrics are typically displayed on the user’s profile page and updated in real-time as engagement changes. Content Management Managing User Posts // Add a new post func addPost ( _ postID : String , to user : inout User) { user. posts . append (postID) } // Remove a post func removePost ( _ postID : String , from user : inout User) { user. posts . removeAll { $0 == postID } } // Get user's post count func getPostCount ( for user : User) -> Int { return user. posts . count }
Managing Liked Posts // Like a post func likePost ( _ postID : String , user : inout User) { if ! user.likedPosts. contains (postID) { user. likedPosts . append (postID) } } // Unlike a post func unlikePost ( _ postID : String , user : inout User) { user. likedPosts . removeAll { $0 == postID } } // Check if user liked a post func hasLiked ( _ postID : String , user : User) -> Bool { return user. likedPosts . contains (postID) }
Profile Customization // Update profile information func updateProfile ( user : inout User, name : String ? = nil , description : String ? = nil , profilePic : String ? = nil , tags : [ String ] ? = nil ) { if let name = name { user. name = name } if let description = description { user. description = description } if let profilePic = profilePic { user. profilePic = profilePic } if let tags = tags { user. tags = tags } } // Example usage var user = currentUser updateProfile ( user : & user, name : "Updated Name" , description : "New bio text" , tags : [ "newTag1" , "newTag2" ] )