Class has no initializers Swift

Question

I have a problem with Swift class  I have a swift file for UITableViewController class and UITableViewCell class  My problem is the UITableViewCell class  and outlets  This class has an error Class  HomeCell  has no initializers  and I don t understand this problem   Thanks for your responses   import Foundation import UIKit  class HomeTable  UITableViewController  UITableViewDataSource  UITableViewDelegate         IBOutlet var tableViex  UITableView       var items    String  String  String                 Test    123    1 jpeg              Test2    236    2 jpeg              Test3    678    3 jpeg              override func viewDidLoad             super viewDidLoad            var nib   UINib nibName   HomeCell   bundle  nil          tableView registerNib nib  forCellReuseIdentifier   bookCell                 Number row     override func tableView tableView  UITableView  numberOfRowsInSection section  Int  - gt  Int           return self items count               Style Cell     override func tableView tableView  UITableView  cellForRowAtIndexPath indexPath  NSIndexPath  - gt  UITableViewCell            var cell UITableViewCell   self tableView dequeueReusableCellWithIdentifier  bookCell   as UITableViewCell             Style here          return cell                Select row     override func tableView tableView  UITableView  didSelectRowAtIndexPath indexPath  NSIndexPath               Select              PROBLEM HERE class HomeCell   UITableViewCell         IBOutlet var imgBook  UIImageView      IBOutlet var titleBook  UILabel      IBOutlet var pageBook  UILabel      func loadItem  title  String  page  String  image String            titleBook text   title         pageBook text   page         imgBook image   UIImage named  image

User · Accepted Answer

You have to use implicitly unwrapped optionals so that Swift can cope with circular dependencies (parent <-> child of the UI components in this case) during the initialization phase.

@IBOutlet var imgBook: UIImageView!
@IBOutlet var titleBook: UILabel!
@IBOutlet var pageBook: UILabel!

Read this doc, they explain it all nicely.

User · Answer

In my case I have declared a Bool like this   var isActivityOpen  Bool    i e  I declared it without unwrapping so  This is how I solved the  no initializer  error    var isActivityOpen  Bool

User · Answer

My answer addresses the error in general and not the exact code of the OP  No answer mentioned this note so I just thought I add it   The code below would also generate the same error   class Actor       let agent   String     BAD     Its value is set to nil  and will always be nil and that s stupid so Xcode is saying not-accepted           Technically speaking you have a way around it  you can help the compiler and enforce your value as a constant  See Option3     Others mentioned that Either you create initializers or you make them optional types  using   or   which is correct  However if you have an optional member property  that optional should be mutable ie var  If you make a let then it would never be able to get out of its nil state  That s bad   So the correct way of writing it is   Option1  class Actor       var agent   String     It s defaulted to  nil   but also has a chance so it later can be set to something different    GOOD      Or you can write it as   Option2  class Actor   let agent   String     It s value isn t set to nil  but has an initializer    GOOD   init  agent  String        self agent   agent    it has a chance so its value can be set            or default it to any value  including nil which is kinda stupid   Option3  class Actor   let agent   String    nil    very useless  but doable  let company  String     Universal         If you are curious as to why let  contrary to var  isn t initialized to nil then read here and here

User · Answer

Not a specific answer to your question but I had got this error when I hadn t set an initial value for an enum while declaring it as a property  I assigned a initial value to the enum to resolve this error  Posting here as it might help someone

User · Answer

Quick fix - make sure all variables which do not get initialized when they are created  eg var num   Int  vs var num   5  have either a   or     Long answer  reccomended  - read the doc as per mprivat suggests

User · Answer

simply provide the init block for HomeCell class  it s work in my case

User · Answer

This is from Apple doc     Classes and structures must set all of their stored properties to an appropriate initial value by the time an instance of that class or structure is created  Stored properties cannot be left in an indeterminate state    You get the error message Class  HomeCell  has no initializers because your variables is in an indeterminate state  Either you create initializers or you make them optional types  using   or

[ios] Class has no initializers Swift

Examples related to ios

Examples related to uitableview

Examples related to swift