From the official documentation:

&gt; The reuse identifier is associated with a UITableViewCell object that the table-view’s delegate creates with the intent to reuse it as the basis (for performance reasons) for multiple rows of a table view. It is assigned to the cell object in initWithFrame:reuseIdentifier: and cannot be changed thereafter. A UITableView object maintains a queue (or list) of the currently reusable cells, each with its own reuse identifier, and makes them available to the delegate in the dequeueReusableCellWithIdentifier: method.

http://developer.apple.com/iphone/library/documentation/UIKit/Reference/UITableViewCell_Class/Reference/Reference.html#//apple_ref/occ/instp/UITableViewCell/reuseIdentifier

I don&#39;t understand this. Well, I understand the basic idea, I think, that you create UITableViewCells, and try to reuse as many as you can instead of making new ones (or something like that). But what exactly decides whether or not a cell is reusable? If I&#39;ve got two identical (visually) cells, but with different texts (well I suppose they aren&#39;t entirely identical), can they both have the same identifier? Or should they have different ones? Or in what situation are you supposed to use different identifiers?

Can anyone clarify or link to a place where it is?

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iPhone - What are reuseIdentifiers (UITableViewCell)?