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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