public
class
AlteredCharSequence
extends Object
implements
CharSequence,
GetChars
| java.lang.Object | |
| ↳ | android.text.AlteredCharSequence |
An AlteredCharSequence is a CharSequence that is largely mirrored from another CharSequence, except that a specified range of characters are mirrored from a different char array instead.
Public methods | |
|---|---|
char
|
charAt(int off)
Returns the |
void
|
getChars(int start, int end, char[] dest, int off)
Exactly like String.getChars(): copy chars |
int
|
length()
Returns the length of this character sequence. |
static
AlteredCharSequence
|
make(CharSequence source, char[] sub, int substart, int subend)
Create an AlteredCharSequence whose text (and possibly spans)
are mirrored from |
CharSequence
|
subSequence(int start, int end)
Returns a new |
String
|
toString()
Returns a string representation of the object. |
Inherited methods | |
|---|---|
 From
class
java.lang.Object
| |
From
interface
java.lang.CharSequence
| |
From
interface
android.text.GetChars
| |
char charAt (int off)
Returns the char value at the specified index. An index ranges from zero
to length() - 1. The first char value of the sequence is at
index zero, the next at index one, and so on, as for array
indexing.
If the char value specified by the index is a
surrogate, the surrogate
value is returned.
| Parameters | |
|---|---|
off |
int:
the index of the char value to be returned |
| Returns | |
|---|---|
char |
the specified char value |
Developers
void getChars (int start,
int end,
char[] dest,
int off)
Exactly like String.getChars(): copy chars start
through end - 1 from this CharSequence into dest
beginning at offset destoff.
| Parameters | |
|---|---|
start |
int
|
end |
int
|
dest |
char
|
off |
int
|
int length ()
Returns the length of this character sequence. The length is the number
of 16-bit chars in the sequence.
| Returns | |
|---|---|
int |
the number of chars in this sequence
|
AlteredCharSequence make (CharSequence source, char[] sub, int substart, int subend)
Create an AlteredCharSequence whose text (and possibly spans)
are mirrored from source, except that the range of
offsets substart inclusive to subend exclusive
are mirrored instead from sub, beginning at offset 0.
| Parameters | |
|---|---|
source |
CharSequence
|
sub |
char
|
substart |
int
|
subend |
int
|
| Returns | |
|---|---|
AlteredCharSequence |
|
CharSequence subSequence (int start, int end)
Returns a new 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 |
int:
the start index, inclusive |
end |
int:
the end index, exclusive |
| Returns | |
|---|---|
CharSequence |
the specified subsequence |
String toString ()
Returns a string representation of the object. In general, the
toString method returns a string that
"textually represents" this object. The result should
be a concise but informative representation that is easy for a
person to read.
It is recommended that all subclasses override this method.
The toString method for class Object
returns a string consisting of the name of the class of which the
object is an instance, the at-sign character `@', and
the unsigned hexadecimal representation of the hash code of the
object. In other words, this method returns a string equal to the
value of:
getClass().getName() + '@' + Integer.toHexString(hashCode())
| Returns | |
|---|---|
String |
a string representation of the object. |