Added in API level 24

android.icu.text

Interfaces

Collator.ReorderCodes Reordering codes for non-script groups that can be reordered under collation. 
FormattedValue An abstract formatted value: a string with associated field attributes. 
Replaceable Replaceable is an interface representing a string of characters that supports the replacement of a range of itself with a new string of characters. 
SymbolTable An interface that defines both lookup protocol and parsing of symbolic names. 
UnicodeMatcher UnicodeMatcher defines a protocol for objects that can match a range of characters in a Replaceable string. 

Classes

AlphabeticIndex<V> AlphabeticIndex supports the creation of a UI index appropriate for a given language. 
AlphabeticIndex.Bucket<V> An index "bucket" with a label string and type. 
AlphabeticIndex.ImmutableIndex<V> Immutable, thread-safe version of AlphabeticIndex. 
AlphabeticIndex.Record<V> A (name, data) pair, to be sorted by name into one of the index buckets. 
Bidi

Bidi algorithm for ICU

This is an implementation of the Unicode Bidirectional Algorithm. 
BidiClassifier Overrides default Bidi class values with custom ones. 
BidiRun A BidiRun represents a sequence of characters at the same embedding level. 
BreakIterator [icu enhancement] ICU's replacement for BreakIterator. Methods, fields, and other functionality specific to ICU are labeled '[icu]'. 
CaseMap Low-level case mapping options and methods. 
CaseMap.Fold Case folding options and methods. 
CaseMap.Lower Lowercasing options and methods. 
CaseMap.Title Titlecasing options and methods. 
CaseMap.Upper Uppercasing options and methods. 
CollationElementIterator CollationElementIterator is an iterator created by a RuleBasedCollator to walk through a string. 
CollationKey A CollationKey represents a String under the rules of a specific Collator object. 
CollationKey.BoundMode Options that used in the API CollationKey.getBound() for getting a CollationKey based on the bound mode requested. 
Collator [icu enhancement] ICU's replacement for Collator. Methods, fields, and other functionality specific to ICU are labeled '[icu]'. 
CompactDecimalFormat Formats numbers in compact (abbreviated) notation, like "1.2K" instead of "1200". 
ConstrainedFieldPosition Represents a span of a string containing a given field. 
CurrencyPluralInfo This class represents the information needed by DecimalFormat to format currency plural, such as "3.00 US dollars" or "1.00 US dollar". 
DateFormat [icu enhancement] ICU's replacement for DateFormat. Methods, fields, and other functionality specific to ICU are labeled '[icu]'. 
DateFormat.Field The instances of this inner class are used as attribute keys and values in AttributedCharacterIterator that DateFormat.formatToCharacterIterator() method returns. 
DateFormatSymbols [icu enhancement] ICU's replacement for DateFormatSymbols. Methods, fields, and other functionality specific to ICU are labeled '[icu]'. 
DateIntervalFormat DateIntervalFormat is a class for formatting and parsing date intervals in a language-independent manner. 
DateIntervalFormat.FormattedDateInterval An immutable class containing the result of a date interval formatting operation. 
DateIntervalInfo DateIntervalInfo is a public class for encapsulating localizable date time interval patterns. 
DateIntervalInfo.PatternInfo PatternInfo class saves the first and second part of interval pattern, and whether the interval pattern is earlier date first. 
DateTimePatternGenerator This class provides flexible generation of date format patterns, like "yy-MM-dd". 
DateTimePatternGenerator.PatternInfo PatternInfo supplies output parameters for addPattern(...). 
DecimalFormat [icu enhancement] ICU's replacement for DecimalFormat. Methods, fields, and other functionality specific to ICU are labeled '[icu]'. 
DecimalFormatSymbols [icu enhancement] ICU's replacement for DecimalFormatSymbols. Methods, fields, and other functionality specific to ICU are labeled '[icu]'. 
DisplayOptions Represents all the display options that are supported by CLDR such as grammatical case, noun class, ... 
DisplayOptions.Builder Responsible for building DisplayOptions. 
Edits Records lengths of string edits but not replacement text. 
Edits.Iterator Access to the list of edits. 
IDNA Abstract base class for IDNA processing. 
IDNA.Info Output container for IDNA processing errors. 
ListFormatter Immutable class for formatting a list, using data from CLDR (or supplied separately). 
ListFormatter.FormattedList An immutable class containing the result of a list formatting operation. 
LocaleDisplayNames Returns display names of ULocales and components of ULocales. 
LocaleDisplayNames.UiListItem Struct-like class used to return information for constructing a UI list, each corresponding to a locale. 
MeasureFormat A formatter for Measure objects. 
MessageFormat [icu enhancement] ICU's replacement for MessageFormat. Methods, fields, and other functionality specific to ICU are labeled '[icu]'. 
MessageFormat.Field Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from MessageFormat.formatToCharacterIterator. 
MessagePattern Parses and represents ICU MessageFormat patterns. 
MessagePattern.Part A message pattern "part", representing a pattern parsing event. 
Normalizer Old Unicode normalization API. 
Normalizer.QuickCheckResult Result values for quickCheck(). 
Normalizer2 Unicode normalization functionality for standard Unicode normalization or for using custom mapping tables. 
NumberFormat [icu enhancement] ICU's replacement for NumberFormat. Methods, fields, and other functionality specific to ICU are labeled '[icu]'. 
NumberFormat.Field The instances of this inner class are used as attribute keys and values in AttributedCharacterIterator that NumberFormat.formatToCharacterIterator() method returns. 
NumberingSystem NumberingSystem is the base class for all number systems. 
PluralFormat PluralFormat supports the creation of internationalized messages with plural inflection. 
PluralRules

Defines rules for mapping non-negative numeric values onto a small set of keywords. 

RelativeDateTimeFormatter Formats simple relative dates. 
RelativeDateTimeFormatter.FormattedRelativeDateTime Represents the result of a formatting operation of a relative datetime. 
RuleBasedCollator

RuleBasedCollator is a concrete subclass of Collator. 

ScientificNumberFormatter A formatter that formats numbers in user-friendly scientific notation. 
SearchIterator SearchIterator is an abstract base class that provides methods to search for a pattern within a text string. 
SelectFormat

SelectFormat supports the creation of internationalized messages by selecting phrases based on keywords. 

SimpleDateFormat [icu enhancement] ICU's replacement for SimpleDateFormat. Methods, fields, and other functionality specific to ICU are labeled '[icu]'. 
StringSearch StringSearch is a SearchIterator that provides language-sensitive text searching based on the comparison rules defined in a RuleBasedCollator object. 
TimeZoneFormat TimeZoneFormat supports time zone display name formatting and parsing. 
TimeZoneNames TimeZoneNames is an abstract class representing the time zone display name data model defined by UTS#35 Unicode Locale Data Markup Language (LDML). 
Transliterator Transliterator is an abstract class that transliterates text from one format to another. 
Transliterator.Position Position structure for incremental transliteration. 
UCharacterIterator Abstract class that defines an API for iteration on text objects.This is an interface for forward and backward iteration and random access into a text object. 
UFormat An abstract class that extends Format to provide additional ICU protocol, specifically, the getLocale() API. 
UnicodeFilter UnicodeFilter defines a protocol for selecting a subset of the full range (U+0000 to U+FFFF) of Unicode characters. 
UnicodeSet A mutable set of Unicode characters and multicharacter strings. 
UnicodeSet.EntryRange A struct-like class used for iteration through ranges, for faster iteration than by String. 
UnicodeSetIterator UnicodeSetIterator iterates over the contents of a UnicodeSet. 
UnicodeSetSpanner A helper class used to count, replace, and trim CharSequences based on UnicodeSet matches. 

Enums

AlphabeticIndex.Bucket.LabelType Type of the label 
CompactDecimalFormat.CompactStyle Style parameter for CompactDecimalFormat. 
DateFormat.BooleanAttribute boolean attributes 
DateFormat.HourCycle Hour Cycle 
DateTimePatternGenerator.DisplayWidth Field display name width constants for getFieldDisplayName 
DisplayContext Display context settings. 
DisplayContext.Type Type values for DisplayContext 
DisplayOptions.Capitalization Represents all the capitalization options. 
DisplayOptions.DisplayLength Represents all the display lengths. 
DisplayOptions.GrammaticalCase Represents all the grammatical cases that are supported by CLDR. 
DisplayOptions.NameStyle Represents all the name styles. 
DisplayOptions.NounClass Represents all the grammatical noun classes that are supported by CLDR. 
DisplayOptions.PluralCategory Standard CLDR plural category constants. 
DisplayOptions.SubstituteHandling Represents all the substitute handlings. 
IDNA.Error IDNA error bit set values. 
ListFormatter.Type Type of meaning expressed by the list. 
ListFormatter.Width Verbosity level of the list patterns. 
LocaleDisplayNames.DialectHandling Enum used in LocaleDisplayNames.getInstance(android.icu.util.ULocale, android.icu.text.LocaleDisplayNames.DialectHandling). 
MeasureFormat.FormatWidth Formatting width enum. 
MessagePattern.ApostropheMode Mode for when an apostrophe starts quoted literal text for MessageFormat output. 
MessagePattern.ArgType Argument type constants. 
MessagePattern.Part.Type Part type constants. 
Normalizer2.Mode Constants for normalization modes. 
PluralRules.PluralType Type of plurals and PluralRules. 
RelativeDateTimeFormatter.AbsoluteUnit Represents an absolute unit. 
RelativeDateTimeFormatter.Direction Represents a direction for an absolute unit e.g "Next Tuesday" or "Last Tuesday" 
RelativeDateTimeFormatter.RelativeDateTimeUnit Represents the unit for formatting a relative date. 
RelativeDateTimeFormatter.RelativeUnit Represents the unit for formatting a relative date. 
RelativeDateTimeFormatter.Style The formatting style 
SearchIterator.ElementComparisonType Option to control how collation elements are compared. 
TimeZoneFormat.GMTOffsetPatternType Offset pattern type enum. 
TimeZoneFormat.ParseOption Parse option enum, used for specifying optional parse behavior. 
TimeZoneFormat.Style Time zone display format style enum used by format/parse APIs in TimeZoneFormat. 
TimeZoneFormat.TimeType Time type enum used for receiving time type (standard time, daylight time or unknown) in TimeZoneFormat APIs. 
TimeZoneNames.NameType Time zone display name types 
UnicodeSet.ComparisonStyle Comparison style enums used by UnicodeSet.compareTo(UnicodeSet, ComparisonStyle). 
UnicodeSet.SpanCondition Argument values for whether span() and similar functions continue while the current character is contained vs. 
UnicodeSetSpanner.CountMethod Options for replaceFrom and countIn to control how to treat each matched span. 
UnicodeSetSpanner.TrimOption Options for the trim() method 

Exceptions

StringPrepParseException Exception that signals an error has occurred while parsing the input to StringPrep or IDNA.