Android Developers Develop Reference added in version 22.1.0 android.support.v4.text Interfaces TextDirectionHeuristicCompat Interface for objects that use a heuristic for guessing at the paragraph direction by examining text. Classes BidiFormatter Utility class for formatting text for display in a potentially opposite-directionality context without garbling. BidiFormatter.Builder A class for building a BidiFormatter with non-default options. ICUCompat TextDirectionHeuristicsCompat Some objects that implement TextDirectionHeuristic. TextUtilsCompat Backwards compatible version of TextUtils. Interfaces TextDirectionHeuristicCompat Classes BidiFormatter BidiFormatter.Builder ICUCompat TextDirectionHeuristicsCompat TextUtilsCompat