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register(_:forCellWithReuseIdentifier:)

Registers a class for use in creating new collection view cells.

Declaration

func register(_ cellClass: AnyClass?, forCellWithReuseIdentifier identifier: String)

Parameters

  • cellClass:

    The class of a cell that you want to use in the collection view.

  • identifier:

    The reuse identifier to associate with the specified class. This parameter must not be nil and must not be an empty string.

Discussion

Prior to calling the dequeueReusableCell(withReuseIdentifier:for:) method of the collection view, you must use this method or the register(_:forCellWithReuseIdentifier:) method to tell the collection view how to create a new cell of the given type. If a cell of the specified type is not currently in a reuse queue, the collection view uses the provided information to create a new cell object automatically.

If you previously registered a class or nib file with the same reuse identifier, the class you specify in the cellClass parameter replaces the old entry. You may specify nil for cellClass if you want to unregister the class from the specified reuse identifier.

See Also

Creating cells