Home/ Questions/Q 721041
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-14T05:49:40+00:00

dequeueReusableCellWithIdentifier: Returns a reusable table-view cell object located by its identifier. (UITableViewCell *)dequeueReusableCellWithIdentifier:(NSString *)identifier

  • 0

dequeueReusableCellWithIdentifier:
Returns a reusable table-view cell
object located by its identifier.

  • (UITableViewCell *)dequeueReusableCellWithIdentifier:(NSString
    *)identifier

Parameters identifier A string
identifying the cell object to be
reused. By default, a reusable
cell’s identifier is its class name,
but you can change it to any arbitrary
value.

Ok so if by default it’s the class name, why should I put much brain force into thinking about an identifier? Could I provide just nil? Would it then use the class name? Or what did they try to say here? Must I make an NSString with the class name by myself and provide it as identifier?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    No. The identifier will be used as a key in an internal NSMutableDictionary of NSArray to store the reusable cells. If you provide nil, the -objectForKey: used in -dequeueReusableCellWithIdentifier: will crash.

    Besides, a table may have cells from different (sub)classes of UITableViewCell, so there’s no good default value to pass either.

    • 0