SpannableString
open class SpannableString : CharSequence, GetChars, Spannable
| kotlin.Any | |
| ↳ | android.text.SpannableString |
This is the class for text whose content is immutable but to which markup objects can be attached and detached. For mutable text, see SpannableStringBuilder.
Summary
| Public constructors | |
|---|---|
SpannableString(source: CharSequence!)For the backward compatibility reasons, this constructor copies all spans including |
|
| Public methods | |
|---|---|
| open Boolean |
Indicates whether some other object is "equal to" this one. |
| Char | |
| Unit | |
| open Int |
getSpanEnd(what: Any!) |
| open Int |
getSpanFlags(what: Any!) |
| open Int |
getSpanStart(what: Any!) |
| open Array<T>! | |
| open Int |
hashCode()Returns a hash code value for the object. |
| open Int |
nextSpanTransition(start: Int, limit: Int, kind: Class<Any!>!) |
| open Unit |
removeSpan(what: Any!)Remove the specified object from the range of text to which it was attached, if any. |
| open Unit |
Attach the specified markup object to the range |
| CharSequence |
subSequence(startIndex: Int, endIndex: Int)Returns a |
| String |
toString()Returns a string representation of the object. |
| open static SpannableString! |
valueOf(source: CharSequence!) |
| Properties | |
|---|---|
| Int | |
Public constructors
SpannableString
SpannableString(source: CharSequence!)
For the backward compatibility reasons, this constructor copies all spans including android.text.NoCopySpan.
| Parameters | |
|---|---|
source |
CharSequence!: source text |
Public methods
equals
open 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 returntrue. - It is symmetric: for any non-null reference values
xandy,x.equals(y)should returntrueif and only ify.equals(x)returnstrue. - It is transitive: for any non-null reference values
x,y, andz, ifx.equals(y)returnstrueandy.equals(z)returnstrue, thenx.equals(z)should returntrue. - It is consistent: for any non-null reference values
xandy, multiple invocations ofx.equals(y)consistently returntrueor consistently returnfalse, provided no information used inequalscomparisons on the objects is modified. - For any non-null reference value
x,x.equals(null)should returnfalse.
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
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() |
getSpans
open fun <T : Any!> getSpans(
queryStart: Int,
queryEnd: Int,
kind: Class<T>!
): Array<T>!
hashCode
open fun hashCode(): Int
Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.
The general contract of hashCode is:
- Whenever it is invoked on the same object more than once during an execution of a Java application, the
hashCodemethod must consistently return the same integer, provided no information used inequalscomparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. - If two objects are equal according to the
equalsmethod, then calling thehashCodemethod on each of the two objects must produce the same integer result. - It is not required that if two objects are unequal according to the
equalsmethod, then calling thehashCodemethod on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.
| Return | |
|---|---|
Int |
a hash code value for this object. |
nextSpanTransition
open fun nextSpanTransition(
start: Int,
limit: Int,
kind: Class<Any!>!
): Int
removeSpan
open fun removeSpan(what: Any!): Unit
Remove the specified object from the range of text to which it was attached, if any. It is OK to remove an object that was never attached in the first place.
setSpan
open fun setSpan(
what: Any!,
start: Int,
end: Int,
flags: Int
): Unit
Attach the specified markup object to the range start…end of the text, or move the object to that range if it was already attached elsewhere. See Spanned for an explanation of what the flags mean. The object can be one that has meaning only within your application, or it can be one that the text system will use to affect text display or behavior. Some noteworthy ones are the subclasses of android.text.style.CharacterStyle and android.text.style.ParagraphStyle, and android.text.TextWatcher and android.text.SpanWatcher.
subSequence
fun subSequence(
startIndex: Int,
endIndex: Int
): CharSequence
Returns a CharSequence that is a subsequence of this sequence. The subsequence starts with the char value at the specified index and ends with the char value at index end - 1. The length (in chars) of the returned sequence is end - start, so if start == end then an empty sequence is returned.
| 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
fun toString(): String
Returns a string representation of the object.
| Return | |
|---|---|
String |
a string consisting of exactly this sequence of characters |