viewDidAppear for UITableViewCell

Question

I usually use viewDidAppear method to do some UI stuff on the view after it finished appearing and I used this method in various situations were it was very useful,

Answer 1

The UITableViewDelegate has these functions:

func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath)

func tableView(_ tableView: UITableView, didEndDisplaying cell: UITableViewCell, forRowAt indexPath: IndexPath)

The cell itself does not have callbacks for this.

Answer 2

If you need to respond to changes to the cell's frame and adjust the layout, you need to implement -layoutSubviews in the cell class. Remember to call [super layoutSubviews].

Answer 3

The method viewDidLoad is related to UIViewController and its subclasses, so we cannot use this in UITableViewCell, which is a UIView subclass. The solution I used in one of my app is to override the layoutSubViews method of UITableViewCell, and I delayed the action for some time as below.

- (void)layoutSubViews
{
     [super layoutSubviews];

     [self performSelector:@selector(myMethod) withObject:nil afterDelay:1.0];
}