Instance Property

canBecomeFirstResponder

Returns a Boolean value indicating whether this object can become the first responder.

Declaration

@property(nonatomic, readonly) BOOL canBecomeFirstResponder;

Return Value

YES if the receiver can become the first responder or NO if it cannot.

Discussion

This method returns NO by default. Subclasses must override this method and return YES to be able to become first responder.

Do not call this method on a view that is not currently in the active view hierarchy. The result is undefined.

See Also

Managing the Responder Chain

nextResponder

Returns the next responder in the responder chain, or nil if there is no next responder.

isFirstResponder

Returns a Boolean value indicating whether this object is the first responder.

becomeFirstResponder

Asks UIKit to make this object the first responder in its window.

canResignFirstResponder

Returns a Boolean value indicating whether the receiver is willing to relinquish first-responder status.

resignFirstResponder

Notifies this object that it has been asked to relinquish its status as first responder in its window.