Contents

isPosition(_:atBoundary:inDirection:)

Return whether a text position is at a boundary of a text unit of a specified granularity in a specified direction.

Declaration

func isPosition(_ position: UITextPosition, atBoundary granularity: UITextGranularity, inDirection direction: UITextDirection) -> Bool

Parameters

  • position:

    A text-position object that represents a location in a document.

  • granularity:

    A constant that indicates a certain granularity of text unit.

  • direction:

    A constant that indicates a direction relative to position. The constant can be of type UITextStorageDirection or UITextLayoutDirection.

Return Value

true if the text position is at the given text-unit boundary in the given direction; false if it is not at the boundary.

See Also

Determining text positions relative to unit boundaries