所以我的代码存在问题。我的注册页面抓取用户数据。它获取用户名，位置和个人资料照片。一切正常，似乎一切都被保存到firebase。但是，当创建帐户并且我转到用户配置文件时，一切似乎都是零。
这是我处理注册的功能。
@objc func handleSignUp(){
// first we cant to take sure that all of the fields are filled
let bio: String = ""
var profilePic: String = ""
// will take the user selected image and load it to firebase
let imageName = NSUUID().uuidString
let storageRef = Storage.storage().reference().child("profile_images").child("\(imageName).PNG")
if let userImage = selectedImageFromPicker,let uploadData = UIImageJPEGRepresentation(userImage, 0.1){
storageRef.putData(uploadData, metadata: nil, completion: { (metadata, error) in
if error != nil{
print(error ?? "")
return
}
profilePic = (metadata?.downloadURL()!.absoluteString)!
guard let username = self.nameTextField.text,
let confirmPassword = self.confirmPasswordTextField.text,
let email = self.emailTextField.text,
let password = self.passwordTextField.text,
!username.isEmpty,
!email.isEmpty,
!password.isEmpty,
!confirmPassword.isEmpty
else {
print("Required fields are not all filled!")
return
}
if self.validateEmail(enteredEmail:email) != true{
let alertController = UIAlertController(title: "Error", message: "Please Enter A Valid Email", preferredStyle: .alert)
let defaultAction = UIAlertAction(title: "Ok", style: .cancel, handler: nil)
alertController.addAction(defaultAction)
self.present(alertController, animated: true, completion: nil)
}
// will make sure user is validated before it even tries to create user
// will make sure the password and confirm password textfields have the same value if so it will print an error
if self.passwordTextField.text != self.confirmPasswordTextField.text {
let alertController = UIAlertController(title: "Error", message: "Passwords Don't Match", preferredStyle: .alert)
let defaultAction = UIAlertAction(title: "Ok", style: .cancel, handler: nil)
alertController.addAction(defaultAction)
self.present(alertController, animated: true, completion: nil)
}
// will authenticate a user into the authentication services with an email and passowrd
AuthService.createUser(controller: self, email: email, password: password) { (authUser) in
guard let firUser = authUser else {
return
}
//will add user to the database
print(profilePic)
print(username)
UserService.create(firUser, username: username , profilePic: profilePic , bio: bio, location: self.userLocation!) { (user) in
guard let user = user else {
print("User successfully loaded into firebase db")
return
}
// will set the current user for userdefaults to work
print(user.profilePic)
print(user.username)
User.setCurrent(user, writeToUserDefaults: true)
// self.delegate?.finishSigningUp()
self.finishSigningUp()
}
}
})
}
}
这是我对配置文件控制器的viewdidload。当我打印出这里的用户时，一切都是零。
override func viewDidLoad() {
super.viewDidLoad()
collectionView?.backgroundColor = UIColor.white
let user = self.user ?? User.current
profileHandle = UserService.observeProfile(for: user) { [unowned self](ref, user, events) in
self.profileRef = ref
self.user = user
self.userEvents = events
// self.jobs = allJobs
// self.reciepts = allReciepts
// print(self.userEvents)
// print(self.reciepts)
DispatchQueue.main.async {
self.collectionView?.reloadData()
}
}
这会处理到主页的转换。
func finishSigningUp() {
print("Finish signing up from signup view controller")
print("Attempting to return to root view controller")
let homeController = HomeViewController()
//should change the root view controller to the homecontroller when done signing up
self.view.window?.rootViewController = homeController
self.view.window?.makeKeyAndVisible()
}
我的家庭视图控制器控制这些throguh的导航，使用一组视图控制器控制snapcaht样式的滑动。像这样
lazy var viewControllerList: [UIViewController] = {
let homeFeedController = HomeFeedController()
let navController = UINavigationController(rootViewController: homeFeedController)
// let navController = ScrollingNavigationController(rootViewController: homeFeedController)
let profileView = ProfileeViewController(collectionViewLayout: UICollectionViewFlowLayout())
let profileViewNavController = UINavigationController(rootViewController: profileView)
let searchController = EventSearchController(collectionViewLayout: UICollectionViewFlowLayout())
let searchNavController = UINavigationController(rootViewController: searchController)
return [searchNavController,navController,profileViewNavController]
}()
Obseverprofile功能
// will observe the user object in the database for any changes and make sure that they are updated
static func observeProfile(for user: User, completion: @escaping (DatabaseReference, User?, [Event]) -> Void) -> DatabaseHandle {
// 1
let userRef = Database.database().reference().child("users").child(user.uid)
// 2
return userRef.observe(.value, with: { snapshot in
// 3
guard let user = User(snapshot: snapshot) else {
return completion(userRef, nil, [])
}
// print(user)
// 4
Events(for: user, completion: { events in
// 5
completion(userRef, user, events)
})
})
}
用户模型
import Foundation
import FirebaseDatabase.FIRDataSnapshot
class User : NSObject {
//User variables
let uid : String
let username : String?
let profilePic: String?
var location: String?
var isFollowed = false
let bio: String?
var dictValue: [String : Any] {
return ["username" : username as Any,
"profilePic" : profilePic as Any,
"Bio" : bio as Any, "location": location as Any]
}
//Standard User init()
init(uid: String, username: String, profilePic: String, bio: String, location: String = "") {
self.uid = uid
self.username = username
self.profilePic = profilePic
self.bio = bio
self.location = location
super.init()
}
//User init using Firebase snapshots
init?(snapshot: DataSnapshot) {
guard let dict = snapshot.value as? [String : Any],
let username = dict["username"] as? String,
let profilePic = dict["profilePic"] as? String,
let bio = dict["bio"] as? String,
let location = dict["location"] as? String
else { return nil }
self.uid = snapshot.key
self.location = location
self.username = username
self.profilePic = profilePic
self.bio = bio
}
//UserDefaults
required init?(coder aDecoder: NSCoder) {
guard let uid = aDecoder.decodeObject(forKey: "uid") as? String,
let username = aDecoder.decodeObject(forKey: "username") as? String,
let profilePic = aDecoder.decodeObject(forKey: "profilePic") as? String,
let bio = aDecoder.decodeObject(forKey: "bio") as? String,
let location = aDecoder.decodeObject(forKey: "location") as? String
else { return nil }
self.uid = uid
self.username = username
self.profilePic = profilePic
self.bio = bio
self.location = location
super.init()
}
init?(key: String, postDictionary: [String : Any]) {
//var dict : [String : Any]
//print(postDictionary as? [String:])
let dict = postDictionary
print(dict)
let profilePic = dict["profilePic"] as? String ?? ""
let bio = dict["bio"] as? String ?? ""
let username = dict["username"] as? String ?? ""
let location = dict["location"] as? String ?? ""
self.uid = key
self.location = location
self.profilePic = profilePic
self.username = username
self.bio = bio
}
//User singleton for currently logged user
private static var _current: User?
static var current: User {
guard let currentUser = _current else {
fatalError("Error: current user doesn't exist")
}
return currentUser
}
class func setCurrent(_ user: User, writeToUserDefaults: Bool = true) {
print(user)
print("")
if writeToUserDefaults {
let data = NSKeyedArchiver.archivedData(withRootObject: user)
UserDefaults.standard.set(data, forKey: "currentUser")
UserDefaults.standard.synchronize()
}
_current = user
print(_current)
}
}
extension User: NSCoding {
func encode(with aCoder: NSCoder) {
aCoder.encode(uid, forKey: "uid")
aCoder.encode(username, forKey: "username")
aCoder.encode(profilePic, forKey: "profilePic")
aCoder.encode(bio, forKey: "bio")
aCoder.encode(location, forKey: "location")
}
}