 Known Indirect Subclasses
| Editable |
This is the interface for text whose content and markup
can be changed (as opposed
to immutable text like Strings). |
| SpannableString |
This is the class for text whose content is immutable but to which
markup objects can be attached and detached. |
| SpannableStringBuilder |
This is the class for text whose content and markup can both be changed. |
|
Class Overview
This is the interface for text to which markup objects can be
attached and detached. Not all Spannable classes have mutable text;
see Editable for that.
Summary
| Nested Classes |
|---|
|
class |
Spannable.Factory |
Factory used by TextView to create new Spannables. |
|
[Expand]
Inherited Constants |
|---|
From interface
android.text.Spanned
| 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. |
| 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. |
| 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. |
| 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. |
| 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. |
| 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). |
| 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. |
| 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. |
| int |
SPAN_PRIORITY |
The bits specified by the SPAN_PRIORITY bitmap determine the order
of change notifications -- higher numbers go first. |
| int |
SPAN_PRIORITY_SHIFT |
The bits numbered just above SPAN_PRIORITY_SHIFT determine the order
of change notifications -- higher numbers go first. |
| 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 Methods |
|---|
|
abstract
void
|
removeSpan(Object what)
Remove the specified object from the range of text to which it
was attached, if any.
|
|
abstract
void
|
setSpan(Object what, int start, int end, int flags)
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.
|
|
[Expand]
Inherited Methods |
|---|
From interface
android.text.Spanned
|
abstract
int
|
getSpanEnd(Object tag)
Return the end of the range of text to which the specified
markup object is attached, or -1 if the object is not attached.
|
|
abstract
int
|
getSpanFlags(Object tag)
Return the flags that were specified when setSpan(Object, int, int, int) was
used to attach the specified markup object, or 0 if the specified
object has not been attached. |
|
abstract
int
|
getSpanStart(Object tag)
Return the beginning of the range of text to which the specified
markup object is attached, or -1 if the object is not attached.
|
|
abstract
<T>
T[]
|
getSpans(int start, int end, Class<T> type)
Return an array of the markup objects attached to the specified
slice of this CharSequence and whose type is the specified type
or a subclass of it.
|
|
abstract
int
|
nextSpanTransition(int start, int limit, Class type)
Return the first offset greater than or equal to start
where a markup object of class type begins or ends,
or limit if there are no starts or ends greater than or
equal to start but less than limit.
|
|
From interface
java.lang.CharSequence
|
abstract
char
|
charAt(int index)
Returns the character at the specified index, with the first character
having index zero.
|
|
abstract
int
|
length()
Returns the number of characters in this sequence.
|
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abstract
CharSequence
|
subSequence(int start, int end)
Returns a CharSequence from the start index (inclusive)
to the end index (exclusive) of this sequence.
|
|
abstract
String
|
toString()
Returns a string with the same characters in the same order as in this
sequence.
|
|
Public Methods
public
abstract
void
removeSpan
(Object what)
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.
public
abstract
void
setSpan
(Object what, int start, int end, int flags)
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 CharacterStyle and
ParagraphStyle, and
TextWatcher and
SpanWatcher.
