CODEWITHSUNDEEP
iosswiftuitableviewuicollectionview
Petar Ivic
Petar Ivic

Reputation: 7

Deleting Favorited Cell

Hy guys I have a problem when deleting the cell.

First I added a custom UIButton on every cell and when the button is executed it saves item in UserDefaults and it shows as painted heart img I fetch saved item in another controller but when I delete the item UIButton image stays the same. I do not know how to put button to default state(image).

First of I created as I sad the custom UIButton

lazy var favoriteButton: UIButton = {
  let button = UIButton(type: .system)
    button.addTarget(self, action: #selector(handleTapped), for: .touchUpInside)
    button.setImage(#imageLiteral(resourceName: "herzfavorie").withRenderingMode(.alwaysTemplate), for: .normal)
    button.tintColor = .white
     return button
    }()

this btn selector "handleTapped" saves item in User Defaults and makes animation

let key = "key"



 @objc func handleTapped() {

   guard  let product = self.product else { return }

  let data = NSKeyedArchiver.archivedData(withRootObject: listOfPodcasts)
        UserDefaults.standard.set(data, forKey: key)

        var listOfPodcasts = Product.savedProducts()

        listOfPodcasts.append(product)

        self.showHeartLiked()


    }

that saves the item in User Defaults and creates this effect on cell but later on when I delete the product in this func 

override func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath) -> [UITableViewRowAction]? {


    let removalProduct = savedProducts[indexPath.row]

    let tableViewAction = UITableViewRowAction(style: .default, title: "Delete") { (_, _) in

       self.savedProducts.remove(at: indexPath.row)
       self.tableView.deleteRows(at: [indexPath], with: UITableViewRowAnimation.automatic)

    Product.deleteProducts(product: removalProduct)

} after this func button should be as by default

button should be as by default

but the button stays not by default I hope I explained it well when someone know the solution how to after deleting put back the button to default state I will be grateful

Upvotes: 1

Views: 85

Answers (3)

Petar Ivic
Petar Ivic

Reputation: 7

I fixed it , I checked if the product is favorited through index(where: ...). in cellForItemAt and after deleting the product I used Notification where I only called self.collectionView.reloadData() And it works perfectly fine

Upvotes: 0

Pankaj K.
Pankaj K.

Reputation: 535

you can manage it by the button's state. set Normal heart image for normal state and filled heart image for the Button's selected state.

Now when user clicks on button you can save the data and make button state selected so it will show the filled heart image.

also when you are deleting the particular cell, at that time you can user Notification center to fire notification or use custom delegate to inform another view controller about the changes.

Upvotes: 0

benmore99
benmore99

Reputation: 933

Use NotificationCenter from your list view controller to alert other view controller for change button style.

Upvotes: 0

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