Added in API level 1

SpannedString


class SpannedString : CharSequence, GetChars, Spanned

This is the class for text whose content and markup are immutable. For mutable markup, see SpannableString; for mutable text, see SpannableStringBuilder.

Summary

Inherited constants
Int SPAN_COMPOSING

This flag is set on spans that are being used to apply temporary styling information on the composing text of an input method, so that they can be found and removed when the composing text is being replaced.

Int SPAN_EXCLUSIVE_EXCLUSIVE

Spans of type SPAN_EXCLUSIVE_EXCLUSIVE do not expand to include text inserted at either their starting or ending point. They can never have a length of 0 and are automatically removed from the buffer if all the text they cover is removed.

Int SPAN_EXCLUSIVE_INCLUSIVE

Non-0-length spans of type SPAN_EXCLUSIVE_INCLUSIVE expand to include text inserted at their ending point but not at their starting point. When 0-length, they behave like points.

Int SPAN_INCLUSIVE_EXCLUSIVE

Non-0-length spans of type SPAN_INCLUSIVE_EXCLUSIVE expand to include text inserted at their starting point but not at their ending point. When 0-length, they behave like marks.

Int SPAN_INCLUSIVE_INCLUSIVE

Spans of type SPAN_INCLUSIVE_INCLUSIVE expand to include text inserted at either their starting or ending point.

Int SPAN_INTERMEDIATE

This flag will be set for intermediate span changes, meaning there is guaranteed to be another change following it. Typically it is used for Selection which automatically uses this with the first offset it sets when updating the selection.

Int SPAN_MARK_MARK

0-length spans with type SPAN_MARK_MARK behave like text marks: they remain at their original offset when text is inserted at that offset. Conceptually, the text is added after the mark.

Int SPAN_MARK_POINT

SPAN_MARK_POINT is a synonym for SPAN_INCLUSIVE_INCLUSIVE.

Int SPAN_PARAGRAPH

SPAN_PARAGRAPH behaves like SPAN_INCLUSIVE_EXCLUSIVE (SPAN_MARK_MARK), except that if either end of the span is at the end of the buffer, that end behaves like _POINT instead (so SPAN_INCLUSIVE_INCLUSIVE if it starts in the middle and ends at the end, or SPAN_EXCLUSIVE_INCLUSIVE if it both starts and ends at the end).

Its endpoints must be the start or end of the buffer or immediately after a \n character, and if the \n that anchors it is deleted, the endpoint is pulled to the next \n that follows in the buffer (or to the end of the buffer). If a span with SPAN_PARAGRAPH flag is pasted into another text and the paragraph boundary constraint is not satisfied, the span is discarded.

Int SPAN_POINT_MARK

SPAN_POINT_MARK is a synonym for SPAN_EXCLUSIVE_EXCLUSIVE.

Int SPAN_POINT_MARK_MASK

Bitmask of bits that are relevent for controlling point/mark behavior of spans. MARK and POINT are conceptually located between two adjacent characters. A MARK is "attached" to the character before, while a POINT will stick to the character after. The insertion cursor is conceptually located between the MARK and the POINT. As a result, inserting a new character between a MARK and a POINT will leave the MARK unchanged, while the POINT will be shifted, now located after the inserted character and still glued to the same character after it. Depending on whether the insertion happens at the beginning or the end of a span, the span will hence be expanded to include the new character (when the span is using a MARK at its beginning or a POINT at its end) or it will be excluded. Note that before and after here refer to offsets in the String, which are independent from the visual representation of the text (left-to-right or right-to-left).

Int SPAN_POINT_POINT

0-length spans with type SPAN_POINT_POINT behave like cursors: they are pushed forward by the length of the insertion when text is inserted at their offset. The text is conceptually inserted before the point.

Int SPAN_PRIORITY

The bits specified by the SPAN_PRIORITY bitmap determine the order of change notifications -- higher numbers go first. You probably don't need to set this; it is used so that when text changes, the text layout gets the chance to update itself before any other callbacks can inquire about the layout of the text.

Int SPAN_PRIORITY_SHIFT

The bits numbered just above SPAN_PRIORITY_SHIFT determine the order of change notifications -- higher numbers go first. You probably don't need to set this; it is used so that when text changes, the text layout gets the chance to update itself before any other callbacks can inquire about the layout of the text.

Int SPAN_USER

The bits specified by the SPAN_USER bitfield are available for callers to use to store scalar data associated with their span object.

Int SPAN_USER_SHIFT

The bits numbered SPAN_USER_SHIFT and above are available for callers to use to store scalar data associated with their span object.

Public constructors

For the backward compatibility reasons, this constructor copies all spans including .

Public methods
Boolean
equals(other: Any?)

Indicates whether some other object is "equal to" this one.

Char
get(i: Int)

Unit
getChars(start: Int, end: Int, dest: CharArray!, off: Int)

Int
getSpanEnd(what: Any!)

Int
getSpanFlags(what: Any!)

Int
getSpanStart(what: Any!)

Array<T>!
getSpans(queryStart: Int, queryEnd: Int, kind: Class<T>!)

Int

Int
nextSpanTransition(start: Int, limit: Int, kind: Class<Any!>!)

CharSequence
subSequence(startIndex: Int, endIndex: Int)

String

static SpannedString!

Properties
Int

Public constructors

SpannedString

Added in API level 1
SpannedString(source: CharSequence!)

For the backward compatibility reasons, this constructor copies all spans including .

Parameters
source CharSequence!: source text

Public methods

equals

Added in API level 1
fun equals(other: Any?): Boolean

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
obj the reference object with which to compare.
o This value may be null.
Return
Boolean true if this object is the same as the obj argument; false otherwise.

get

Added in API level 1
fun get(i: Int): Char
Parameters
index the index of the char value to be returned
Return
Char the specified char value
Exceptions
java.lang.IndexOutOfBoundsException if the index argument is negative or not less than length()

getChars

Added in API level 1
fun getChars(
    start: Int,
    end: Int,
    dest: CharArray!,
    off: Int
): Unit

getSpanEnd

Added in API level 1
fun getSpanEnd(what: Any!): Int

getSpanFlags

Added in API level 1
fun getSpanFlags(what: Any!): Int

getSpanStart

Added in API level 1
fun getSpanStart(what: Any!): Int

getSpans

Added in API level 1
fun <T : Any!> getSpans(
    queryStart: Int,
    queryEnd: Int,
    kind: Class<T>!
): Array<T>!

hashCode

Added in API level 1
fun hashCode(): Int
Return
Int a hash code value for this object.

nextSpanTransition

Added in API level 1
fun nextSpanTransition(
    start: Int,
    limit: Int,
    kind: Class<Any!>!
): Int

subSequence

Added in API level 1
fun subSequence(
    startIndex: Int,
    endIndex: Int
): CharSequence
Parameters
start the start index, inclusive
end the end index, exclusive
Return
CharSequence the specified subsequence
Exceptions
java.lang.IndexOutOfBoundsException if start or end are negative, if end is greater than length(), or if start is greater than end

toString

Added in API level 1
fun toString(): String
Return
String a string consisting of exactly this sequence of characters

valueOf

Added in API level 1
static fun valueOf(source: CharSequence!): SpannedString!

Properties

length

Added in API level 1
val length: Int
Return
Int the number of chars in this sequence