shouldRequireFailure(of:)

Declaration

func shouldRequireFailure(of otherGestureRecognizer: UIGestureRecognizer) -> Bool

Parameters

• otherGestureRecognizer:

  An instance of a subclass of UIGestureRecognizer.

Return Value

true to set up the failure requirement; otherwise, false.

Discussion

Overriding this method allows a subclass to define a class-wide failure requirement.

See Also

Implementing subclasses

• touchesBegan(_:with:)
• touchesMoved(_:with:)
• touchesEnded(_:with:)
• touchesCancelled(_:with:)
• touchesEstimatedPropertiesUpdated(_:)
• reset()
• ignore(_:for:)
• canBePrevented(by:)
• canPrevent(_:)
• shouldReceive(_:)
• shouldBeRequiredToFail(by:)
• ignore(_:for:)
• pressesBegan(_:with:)
• pressesChanged(_:with:)
• pressesEnded(_:with:)