Android APIs
Added in API level 18
public interface

TextDirectionHeuristic

android.text.TextDirectionHeuristic

Class Overview

Interface for objects that use a heuristic for guessing at the paragraph direction by examining text.

Summary

Public Methods
abstract boolean isRtl(CharSequence cs, int start, int count)
Guess if a CharSequence is in the RTL direction or not.
abstract boolean isRtl(char[] array, int start, int count)
Guess if a chars array is in the RTL direction or not.

Public Methods

public abstract boolean isRtl (CharSequence cs, int start, int count)

Added in API level 18

Guess if a CharSequence is in the RTL direction or not.

Parameters
cs the CharSequence.
start start index, inclusive.
count the length to check, must not be negative and not greater than CharSequence.length() - start.
Returns
  • true if all chars in the range are to be considered in a RTL direction, false otherwise.

public abstract boolean isRtl (char[] array, int start, int count)

Added in API level 18

Guess if a chars array is in the RTL direction or not.

Parameters
array the char array.
start start index, inclusive.
count the length to check, must not be negative and not greater than array.length - start.
Returns
  • true if all chars in the range are to be considered in a RTL direction, false otherwise.