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TextUtils

public class TextUtils
extends Object

java.lang.Object
↳	android.text.TextUtils

Summary

Nested classes
`interface`	`TextUtils.EllipsizeCallback`
`class`	`TextUtils.SimpleStringSplitter` A simple string splitter.
`interface`	`TextUtils.StringSplitter` An interface for splitting strings according to rules that are opaque to the user of this interface.
`enum`	`TextUtils.TruncateAt`

Constants
`int`	`CAP_MODE_CHARACTERS` Capitalization mode for `getCapsMode(CharSequence, int, int)`: capitalize all characters.
`int`	`CAP_MODE_SENTENCES` Capitalization mode for `getCapsMode(CharSequence, int, int)`: capitalize the first character of each sentence.
`int`	`CAP_MODE_WORDS` Capitalization mode for `getCapsMode(CharSequence, int, int)`: capitalize the first character of all words.
`int`	`SAFE_STRING_FLAG_FIRST_LINE` Return only first line of text (truncate at first newline).
`int`	`SAFE_STRING_FLAG_SINGLE_LINE` Force entire string into single line of text (no newlines).
`int`	`SAFE_STRING_FLAG_TRIM` Remove `whitespace` and non-breaking spaces from the edges of the label.

Fields
`public static final Creator<CharSequence>`	`CHAR_SEQUENCE_CREATOR`

Public methods
`static CharSequence`	`commaEllipsize(CharSequence text, TextPaint p, float avail, String oneMore, String more)` This method is deprecated. Do not use. This is not internationalized, and has known issues with right-to-left text, languages that have more than one plural form, languages that use a different character as a comma-like separator, etc. Use `listEllipsize(Context, List, String, TextPaint, float, int)` instead.
`static CharSequence`	`concat(CharSequence... text)` Returns a CharSequence concatenating the specified CharSequences, retaining their spans if any.
`static void`	`copySpansFrom(Spanned source, int start, int end, Class kind, Spannable dest, int destoff)` Copies the spans from the region `start...end` in `source` to the region `destoff...destoff+end-start` in `dest`.
`static void`	`dumpSpans(CharSequence cs, Printer printer, String prefix)` Debugging tool to print the spans in a CharSequence.
`static CharSequence`	`ellipsize(CharSequence text, TextPaint p, float avail, TextUtils.TruncateAt where)` Returns the original text if it fits in the specified width given the properties of the specified Paint, or, if it does not fit, a truncated copy with ellipsis character added at the specified edge or center.
`static CharSequence`	`ellipsize(CharSequence text, TextPaint paint, float avail, TextUtils.TruncateAt where, boolean preserveLength, TextUtils.EllipsizeCallback callback)` Returns the original text if it fits in the specified width given the properties of the specified Paint, or, if it does not fit, a copy with ellipsis character added at the specified edge or center.
`static boolean`	`equals(CharSequence a, CharSequence b)` Returns true if a and b are equal, including if they are both null.
`static CharSequence`	`expandTemplate(CharSequence template, CharSequence... values)` Replace instances of "^1", "^2", etc.
`static int`	`getCapsMode(CharSequence cs, int off, int reqModes)` Determine what caps mode should be in effect at the current offset in the text.
`static void`	`getChars(CharSequence s, int start, int end, char[] dest, int destoff)`
`static int`	`getLayoutDirectionFromLocale(Locale locale)` Return the layout direction for a given Locale
`static int`	`getOffsetAfter(CharSequence text, int offset)`
`static int`	`getOffsetBefore(CharSequence text, int offset)`
`static CharSequence`	`getReverse(CharSequence source, int start, int end)` This method is deprecated. Do not use.
`static int`	`getTrimmedLength(CharSequence s)` Returns the length that the specified CharSequence would have if spaces and ASCII control characters were trimmed from the start and end, as by `String#trim`.
`static String`	`htmlEncode(String s)` Html-encode the string.
`static int`	`indexOf(CharSequence s, char ch, int start, int end)`
`static int`	`indexOf(CharSequence s, CharSequence needle, int start, int end)`
`static int`	`indexOf(CharSequence s, CharSequence needle, int start)`
`static int`	`indexOf(CharSequence s, CharSequence needle)`
`static int`	`indexOf(CharSequence s, char ch, int start)`
`static int`	`indexOf(CharSequence s, char ch)`
`static boolean`	`isDigitsOnly(CharSequence str)` Returns whether the given CharSequence contains only digits.
`static boolean`	`isEmpty(CharSequence str)` Returns true if the string is null or 0-length.
`static boolean`	`isGraphic(CharSequence str)` Returns whether the given CharSequence contains any printable characters.
`static boolean`	`isGraphic(char c)` This method is deprecated. Use `isGraphic(java.lang.CharSequence)` instead.
`static String`	`join(CharSequence delimiter, Iterable tokens)` Returns a string containing the tokens joined by delimiters.
`static String`	`join(CharSequence delimiter, Object[] tokens)` Returns a string containing the tokens joined by delimiters.
`static int`	`lastIndexOf(CharSequence s, char ch, int last)`
`static int`	`lastIndexOf(CharSequence s, char ch)`
`static int`	`lastIndexOf(CharSequence s, char ch, int start, int last)`
`static CharSequence`	`listEllipsize(Context context, List<CharSequence> elements, String separator, TextPaint paint, float avail, int moreId)` Formats a list of CharSequences by repeatedly inserting the separator between them, but stopping when the resulting sequence is too wide for the specified width.
`static CharSequence`	`makeSafeForPresentation(String unclean, int maxCharactersToConsider, float ellipsizeDip, int flags)` Remove html, remove bad characters, and truncate string.
`static boolean`	`regionMatches(CharSequence one, int toffset, CharSequence two, int ooffset, int len)`
`static CharSequence`	`replace(CharSequence template, String[] sources, CharSequence[] destinations)` Return a new CharSequence in which each of the source strings is replaced by the corresponding element of the destinations.
`static String[]`	`split(String text, Pattern pattern)` Splits a string on a pattern.
`static String[]`	`split(String text, String expression)` This method yields the same result as `text.split(expression, -1)` except that if `text.isEmpty()` then this method returns an empty array whereas `"".split(expression, -1)` would have returned an array with a single `""`.
`static CharSequence`	`stringOrSpannedString(CharSequence source)`
`static String`	`substring(CharSequence source, int start, int end)` Create a new String object containing the given range of characters from the source string.
`static void`	`writeToParcel(CharSequence cs, Parcel p, int parcelableFlags)` Flatten a CharSequence and whatever styles can be copied across processes into the parcel.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

Constants

CAP_MODE_CHARACTERS

public static final int CAP_MODE_CHARACTERS

Capitalization mode for getCapsMode(CharSequence, int, int): capitalize all characters. This value is explicitly defined to be the same as InputType#TYPE_TEXT_FLAG_CAP_CHARACTERS.

Constant Value: 4096 (0x00001000)

CAP_MODE_SENTENCES

public static final int CAP_MODE_SENTENCES

Capitalization mode for getCapsMode(CharSequence, int, int): capitalize the first character of each sentence. This value is explicitly defined to be the same as InputType#TYPE_TEXT_FLAG_CAP_SENTENCES.

Constant Value: 16384 (0x00004000)

CAP_MODE_WORDS

public static final int CAP_MODE_WORDS

Capitalization mode for getCapsMode(CharSequence, int, int): capitalize the first character of all words. This value is explicitly defined to be the same as InputType#TYPE_TEXT_FLAG_CAP_WORDS.

Constant Value: 8192 (0x00002000)

SAFE_STRING_FLAG_FIRST_LINE

public static final int SAFE_STRING_FLAG_FIRST_LINE

Return only first line of text (truncate at first newline). Cannot be set at the same time as SAFE_STRING_FLAG_SINGLE_LINE.

See also:

makeSafeForPresentation(String, int, float, int)

Constant Value: 4 (0x00000004)

SAFE_STRING_FLAG_SINGLE_LINE

public static final int SAFE_STRING_FLAG_SINGLE_LINE

Force entire string into single line of text (no newlines). Cannot be set at the same time as SAFE_STRING_FLAG_FIRST_LINE.

See also:

makeSafeForPresentation(String, int, float, int)

Constant Value: 2 (0x00000002)

SAFE_STRING_FLAG_TRIM

public static final int SAFE_STRING_FLAG_TRIM

Remove whitespace and non-breaking spaces from the edges of the label.

See also:

makeSafeForPresentation(String, int, float, int)

Constant Value: 1 (0x00000001)

Fields

CHAR_SEQUENCE_CREATOR

public static final Creator<CharSequence> CHAR_SEQUENCE_CREATOR

Public methods

commaEllipsize

public static CharSequence commaEllipsize (CharSequence text, 
                TextPaint p, 
                float avail, 
                String oneMore, 
                String more)

This method is deprecated.
Do not use. This is not internationalized, and has known issues with right-to-left text, languages that have more than one plural form, languages that use a different character as a comma-like separator, etc. Use listEllipsize(Context, List, String, TextPaint, float, int) instead.

Converts a CharSequence of the comma-separated form "Andy, Bob, Charles, David" that is too wide to fit into the specified width into one like "Andy, Bob, 2 more".

Parameters
`text`	`CharSequence`: the text to truncate
`p`	`TextPaint`: the Paint with which to measure the text
`avail`	`float`: the horizontal width available for the text (in pixels)
`oneMore`	`String`: the string for "1 more" in the current locale
`more`	`String`: the string for "%d more" in the current locale

Returns
`CharSequence`

concat

public static CharSequence concat (CharSequence... text)

Returns a CharSequence concatenating the specified CharSequences, retaining their spans if any. If there are no parameters, an empty string will be returned. If the number of parameters is exactly one, that parameter is returned as output, even if it is null. If the number of parameters is at least two, any null CharSequence among the parameters is treated as if it was the string "null". If there are paragraph spans in the source CharSequences that satisfy paragraph boundary requirements in the sources but would no longer satisfy them in the concatenated CharSequence, they may get extended in the resulting CharSequence or not retained.

Parameters
`text`	`CharSequence`

Returns
`CharSequence`

copySpansFrom

public static void copySpansFrom (Spanned source, 
                int start, 
                int end, 
                Class kind, 
                Spannable dest, 
                int destoff)

Copies the spans from the region start...end in source to the region destoff...destoff+end-start in dest. Spans in source that begin before start or end after end but overlap this range are trimmed as if they began at start or ended at end.

Parameters
`source`	`Spanned`
`start`	`int`
`end`	`int`
`kind`	`Class`
`dest`	`Spannable`
`destoff`	`int`

Throws
`IndexOutOfBoundsException`	if any of the copied spans are out of range in `dest`.

dumpSpans

public static void dumpSpans (CharSequence cs, 
                Printer printer, 
                String prefix)

Debugging tool to print the spans in a CharSequence. The output will be printed one span per line. If the CharSequence is not a Spanned, then the entire string will be printed on a single line.

Parameters
`cs`	`CharSequence`
`printer`	`Printer`
`prefix`	`String`

ellipsize

public static CharSequence ellipsize (CharSequence text, 
                TextPaint p, 
                float avail, 
                TextUtils.TruncateAt where)

Returns the original text if it fits in the specified width given the properties of the specified Paint, or, if it does not fit, a truncated copy with ellipsis character added at the specified edge or center.

Parameters
`text`	`CharSequence`
`p`	`TextPaint`
`avail`	`float`
`where`	`TextUtils.TruncateAt`

Returns
`CharSequence`

ellipsize

public static CharSequence ellipsize (CharSequence text, 
                TextPaint paint, 
                float avail, 
                TextUtils.TruncateAt where, 
                boolean preserveLength, 
                TextUtils.EllipsizeCallback callback)

Returns the original text if it fits in the specified width given the properties of the specified Paint, or, if it does not fit, a copy with ellipsis character added at the specified edge or center. If preserveLength is specified, the returned copy will be padded with zero-width spaces to preserve the original length and offsets instead of truncating. If callback is non-null, it will be called to report the start and end of the ellipsized range. TextDirection is determined by the first strong directional character.

Parameters
`text`	`CharSequence`
`paint`	`TextPaint`
`avail`	`float`
`where`	`TextUtils.TruncateAt`
`preserveLength`	`boolean`
`callback`	`TextUtils.EllipsizeCallback`: This value may be `null`.

Returns
`CharSequence`

equals

public static boolean equals (CharSequence a, 
                CharSequence b)

Returns true if a and b are equal, including if they are both null.

Note: In platform versions 1.1 and earlier, this method only worked well if both the arguments were instances of String.

Parameters
`a`	`CharSequence`: first CharSequence to check
`b`	`CharSequence`: second CharSequence to check

Returns
`boolean`	true if a and b are equal

expandTemplate

public static CharSequence expandTemplate (CharSequence template, 
                CharSequence... values)

Replace instances of "^1", "^2", etc. in the template CharSequence with the corresponding values. "^^" is used to produce a single caret in the output. Only up to 9 replacement values are supported, "^10" will be produce the first replacement value followed by a '0'.

Parameters
`template`	`CharSequence`: the input text containing "^1"-style placeholder values. This object is not modified; a copy is returned.
`values`	`CharSequence`: CharSequences substituted into the template. The first is substituted for "^1", the second for "^2", and so on.

Returns
`CharSequence`	the new CharSequence produced by doing the replacement

Throws
`IllegalArgumentException`	if the template requests a value that was not provided, or if more than 9 values are provided.

getCapsMode

public static int getCapsMode (CharSequence cs, 
                int off, 
                int reqModes)

Determine what caps mode should be in effect at the current offset in the text. Only the mode bits set in reqModes will be checked. Note that the caps mode flags here are explicitly defined to match those in InputType.

Parameters
`cs`	`CharSequence`: The text that should be checked for caps modes.
`off`	`int`: Location in the text at which to check.
`reqModes`	`int`: The modes to be checked: may be any combination of `CAP_MODE_CHARACTERS`, `CAP_MODE_WORDS`, and `CAP_MODE_SENTENCES`.

Returns
`int`	Returns the actual capitalization modes that can be in effect at the current position, which is any combination of `CAP_MODE_CHARACTERS`, `CAP_MODE_WORDS`, and `CAP_MODE_SENTENCES`.

getChars

public static void getChars (CharSequence s, 
                int start, 
                int end, 
                char[] dest, 
                int destoff)

Parameters
`s`	`CharSequence`
`start`	`int`
`end`	`int`
`dest`	`char`
`destoff`	`int`

getLayoutDirectionFromLocale

public static int getLayoutDirectionFromLocale (Locale locale)

Return the layout direction for a given Locale

Parameters
`locale`	`Locale`: the Locale for which we want the layout direction. Can be null.

Returns
`int`	the layout direction. This may be one of: `View.LAYOUT_DIRECTION_LTR` or `View.LAYOUT_DIRECTION_RTL`. Be careful: this code will need to be updated when vertical scripts will be supported

getOffsetAfter

public static int getOffsetAfter (CharSequence text, 
                int offset)

Parameters
`text`	`CharSequence`
`offset`	`int`

Returns
`int`

getOffsetBefore

public static int getOffsetBefore (CharSequence text, 
                int offset)

Parameters
`text`	`CharSequence`
`offset`	`int`

Returns
`int`

getReverse

public static CharSequence getReverse (CharSequence source, 
                int start, 
                int end)

This method is deprecated.
Do not use.

This function only reverses individual chars and not their associated spans. It doesn't support surrogate pairs (that correspond to non-BMP code points), combining sequences or conjuncts either.

Parameters
`source`	`CharSequence`
`start`	`int`
`end`	`int`

Returns
`CharSequence`

getTrimmedLength

public static int getTrimmedLength (CharSequence s)

Returns the length that the specified CharSequence would have if spaces and ASCII control characters were trimmed from the start and end, as by String#trim.

Parameters
`s`	`CharSequence`

Returns
`int`

htmlEncode

public static String htmlEncode (String s)

Html-encode the string.

Parameters
`s`	`String`: the string to be encoded

Returns
`String`	the encoded string

indexOf

public static int indexOf (CharSequence s, 
                char ch, 
                int start, 
                int end)

Parameters
`s`	`CharSequence`
`ch`	`char`
`start`	`int`
`end`	`int`

Returns
`int`

indexOf

public static int indexOf (CharSequence s, 
                CharSequence needle, 
                int start, 
                int end)

Parameters
`s`	`CharSequence`
`needle`	`CharSequence`
`start`	`int`
`end`	`int`

Returns
`int`

indexOf

public static int indexOf (CharSequence s, 
                CharSequence needle, 
                int start)

Parameters
`s`	`CharSequence`
`needle`	`CharSequence`
`start`	`int`

Returns
`int`

indexOf

public static int indexOf (CharSequence s, 
                CharSequence needle)

Parameters
`s`	`CharSequence`
`needle`	`CharSequence`

Returns
`int`

indexOf

public static int indexOf (CharSequence s, 
                char ch, 
                int start)

Parameters
`s`	`CharSequence`
`ch`	`char`
`start`	`int`

Returns
`int`

indexOf

public static int indexOf (CharSequence s, 
                char ch)

Parameters
`s`	`CharSequence`
`ch`	`char`

Returns
`int`

isDigitsOnly

public static boolean isDigitsOnly (CharSequence str)

Returns whether the given CharSequence contains only digits.

Parameters
`str`	`CharSequence`

Returns
`boolean`

isEmpty

public static boolean isEmpty (CharSequence str)

Returns true if the string is null or 0-length.

Parameters
`str`	`CharSequence`: the string to be examined This value may be `null`.

Returns
`boolean`	true if str is null or zero length

isGraphic

public static boolean isGraphic (CharSequence str)

Returns whether the given CharSequence contains any printable characters.

Parameters
`str`	`CharSequence`

Returns
`boolean`

isGraphic

public static boolean isGraphic (char c)

This method is deprecated.
Use isGraphic(java.lang.CharSequence) instead.

Returns whether this character is a printable character. This does not support non-BMP characters and should not be used.

Parameters
`c`	`char`

Returns
`boolean`

join

public static String join (CharSequence delimiter, 
                Iterable tokens)

Returns a string containing the tokens joined by delimiters.

Parameters
`delimiter`	`CharSequence`: a CharSequence that will be inserted between the tokens. If null, the string "null" will be used as the delimiter. This value cannot be `null`.
`tokens`	`Iterable`: an array objects to be joined. Strings will be formed from the objects by calling object.toString(). If tokens is null, a NullPointerException will be thrown. If tokens is empty, an empty string will be returned. This value cannot be `null`.

Returns
`String`

join

public static String join (CharSequence delimiter, 
                Object[] tokens)

Returns a string containing the tokens joined by delimiters.

Parameters
`delimiter`	`CharSequence`: a CharSequence that will be inserted between the tokens. If null, the string "null" will be used as the delimiter. This value cannot be `null`.
`tokens`	`Object`: an array objects to be joined. Strings will be formed from the objects by calling object.toString(). If tokens is null, a NullPointerException will be thrown. If tokens is an empty array, an empty string will be returned. This value cannot be `null`.

Returns
`String`

lastIndexOf

public static int lastIndexOf (CharSequence s, 
                char ch, 
                int last)

Parameters
`s`	`CharSequence`
`ch`	`char`
`last`	`int`

Returns
`int`

lastIndexOf

public static int lastIndexOf (CharSequence s, 
                char ch)

Parameters
`s`	`CharSequence`
`ch`	`char`

Returns
`int`

lastIndexOf

public static int lastIndexOf (CharSequence s, 
                char ch, 
                int start, 
                int last)

Parameters
`s`	`CharSequence`
`ch`	`char`
`start`	`int`
`last`	`int`

Returns
`int`

listEllipsize

public static CharSequence listEllipsize (Context context, 
                List<CharSequence> elements, 
                String separator, 
                TextPaint paint, 
                float avail, 
                int moreId)

Formats a list of CharSequences by repeatedly inserting the separator between them, but stopping when the resulting sequence is too wide for the specified width. This method actually tries to fit the maximum number of elements. So if "A, 11 more" fits, "A, B, 10 more" doesn't fit, but "A, B, C, 9 more" fits again (due to the glyphs for the digits being very wide, for example), it returns "A, B, C, 9 more". Because of this, this method may be inefficient for very long lists. Note that the elements of the returned value, as well as the string for moreId, will be bidi-wrapped using BidiFormatter#unicodeWrap based on the locale of the input Context. If the input Context is null, the default BidiFormatter from BidiFormatter#getInstance() will be used.

Parameters
`context`	`Context`: the `Context` to get the `moreId` resource from. If `null`, an ellipsis (U+2026) would be used for `moreId`. This value may be `null`.
`elements`	`List`: the list to format This value may be `null`.
`separator`	`String`: a separator, such as `", "` This value cannot be `null`.
`paint`	`TextPaint`: the Paint with which to measure the text This value cannot be `null`.
`avail`	`float`: the horizontal width available for the text (in pixels) Value is 0.0 or greater
`moreId`	`int`: the resource ID for the pluralized string to insert at the end of sequence when some of the elements don't fit.

Returns
`CharSequence`	the formatted CharSequence. If even the shortest sequence (e.g. `"A, 11 more"`) doesn't fit, it will return an empty string.

makeSafeForPresentation

public static CharSequence makeSafeForPresentation (String unclean, 
                int maxCharactersToConsider, 
                float ellipsizeDip, 
                int flags)

Remove html, remove bad characters, and truncate string.

This method is meant to remove common mistakes and nefarious formatting from strings that were loaded from untrusted sources (such as other packages).

This method first treats the string like HTML and then ...

Removes new lines or truncates at first new line
Trims the white-space off the end
Truncates the string

... if specified.

Parameters
`unclean`	`String`: The input string This value cannot be `null`.
`maxCharactersToConsider`	`int`: The maximum number of characters of `unclean` to consider from the input string. `0` disables this feature. Value is 0 or greater
`ellipsizeDip`	`float`: Assuming maximum length of the string (in dip), assuming font size 42. This is roughly 50 characters for `ellipsizeDip == 1000`. Usually ellipsizing should be left to the view showing the string. If a string is used as an input to another string, it might be useful to control the length of the input string though. `0` disables this feature. Value is 0 or greater
`flags`	`int`: Flags controlling cleaning behavior (Can be `SAFE_STRING_FLAG_TRIM`, `SAFE_STRING_FLAG_SINGLE_LINE`, and `SAFE_STRING_FLAG_FIRST_LINE`) Value is either `0` or a combination of `SAFE_STRING_FLAG_TRIM`, `SAFE_STRING_FLAG_SINGLE_LINE`, and `SAFE_STRING_FLAG_FIRST_LINE`

Returns
`CharSequence`	The cleaned string This value cannot be `null`.

regionMatches

public static boolean regionMatches (CharSequence one, 
                int toffset, 
                CharSequence two, 
                int ooffset, 
                int len)

Parameters
`one`	`CharSequence`
`toffset`	`int`
`two`	`CharSequence`
`ooffset`	`int`
`len`	`int`

Returns
`boolean`

replace

public static CharSequence replace (CharSequence template, 
                String[] sources, 
                CharSequence[] destinations)

Return a new CharSequence in which each of the source strings is replaced by the corresponding element of the destinations.

Parameters
`template`	`CharSequence`
`sources`	`String`
`destinations`	`CharSequence`

Returns
`CharSequence`

split

public static String[] split (String text, 
                Pattern pattern)

Splits a string on a pattern. This method yields the same result as pattern.split(text, -1) except that if text.isEmpty() then this method returns an empty array whereas pattern.split("", -1) would have returned an array with a single "". The -1 means that trailing empty Strings are not removed from the result; Note that whether a leading zero-width match can result in a leading "" depends on whether your app targets an SDK version <= 28; see Pattern#split(CharSequence, int).

Parameters
`text`	`String`: the string to split
`pattern`	`Pattern`: the regular expression to match

Returns
`String[]`	an array of strings. The array will be empty if text is empty

Throws
`NullPointerException`	if expression or text is null

split

public static String[] split (String text, 
                String expression)

This method yields the same result as text.split(expression, -1) except that if text.isEmpty() then this method returns an empty array whereas "".split(expression, -1) would have returned an array with a single "". The -1 means that trailing empty Strings are not removed from the result; for example split("a,", "," ) returns {"a", ""}. Note that whether a leading zero-width match can result in a leading "" depends on whether your app targets an SDK version <= 28; see Pattern#split(CharSequence, int).

Parameters
`text`	`String`: the string to split
`expression`	`String`: the regular expression to match

Returns
`String[]`	an array of strings. The array will be empty if text is empty

Throws
`NullPointerException`	if expression or text is null

stringOrSpannedString

public static CharSequence stringOrSpannedString (CharSequence source)

Parameters
`source`	`CharSequence`

Returns
`CharSequence`

substring

public static String substring (CharSequence source, 
                int start, 
                int end)

Create a new String object containing the given range of characters from the source string. This is different than simply calling CharSequence.subSequence in that it does not preserve any style runs in the source sequence, allowing a more efficient implementation.

Parameters
`source`	`CharSequence`
`start`	`int`
`end`	`int`

Returns
`String`

writeToParcel

public static void writeToParcel (CharSequence cs, 
                Parcel p, 
                int parcelableFlags)

Flatten a CharSequence and whatever styles can be copied across processes into the parcel.

Parameters
`cs`	`CharSequence`: This value may be `null`.
`p`	`Parcel`: This value cannot be `null`.
`parcelableFlags`	`int`

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TextUtils

Summary

Nested classes

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Inherited methods

Constants

CAP_MODE_CHARACTERS

CAP_MODE_SENTENCES

CAP_MODE_WORDS

SAFE_STRING_FLAG_FIRST_LINE

SAFE_STRING_FLAG_SINGLE_LINE

SAFE_STRING_FLAG_TRIM

Fields

CHAR_SEQUENCE_CREATOR

Public methods

commaEllipsize

concat

copySpansFrom

dumpSpans

ellipsize

ellipsize

equals

expandTemplate

getCapsMode

getChars

getLayoutDirectionFromLocale

getOffsetAfter

getOffsetBefore

getReverse

getTrimmedLength

htmlEncode

indexOf

indexOf

indexOf

indexOf

indexOf

indexOf

isDigitsOnly

isEmpty

isGraphic

isGraphic

join

join

lastIndexOf

lastIndexOf

lastIndexOf

listEllipsize

makeSafeForPresentation

regionMatches

replace

split

split

stringOrSpannedString

substring

writeToParcel