Selection
public
class
Selection
extends Object
Utility class for manipulating cursors and selections in CharSequences.
A cursor is a selection where the start and end are at the same offset.
Summary
Public methods |
|---|
static
boolean
|
extendDown(Spannable text, Layout layout)
Move the selection end to the buffer offset physically below
the current selection end.
|
static
boolean
|
extendLeft(Spannable text, Layout layout)
Move the selection end to the buffer offset physically to the left of
the current selection end.
|
static
boolean
|
extendRight(Spannable text, Layout layout)
Move the selection end to the buffer offset physically to the right of
the current selection end.
|
static
final
void
|
extendSelection(Spannable text, int index)
Move the selection edge to offset index.
|
static
boolean
|
extendToLeftEdge(Spannable text, Layout layout)
|
static
boolean
|
extendToRightEdge(Spannable text, Layout layout)
|
static
boolean
|
extendUp(Spannable text, Layout layout)
Move the selection end to the buffer offset physically above
the current selection end.
|
static
final
int
|
getSelectionEnd(CharSequence text)
Return the offset of the selection edge or cursor, or -1 if
there is no selection or cursor.
|
static
final
int
|
getSelectionStart(CharSequence text)
Return the offset of the selection anchor or cursor, or -1 if
there is no selection or cursor.
|
static
boolean
|
moveDown(Spannable text, Layout layout)
Move the cursor to the buffer offset physically below the current
offset, to the end of the buffer if it is on the bottom line but
not at the end, or return false if the cursor is already at the
end of the buffer.
|
static
boolean
|
moveLeft(Spannable text, Layout layout)
Move the cursor to the buffer offset physically to the left of
the current offset, or return false if the cursor is already
at the left edge of the line and there is not another line to move it to.
|
static
boolean
|
moveRight(Spannable text, Layout layout)
Move the cursor to the buffer offset physically to the right of
the current offset, or return false if the cursor is already at
at the right edge of the line and there is not another line
to move it to.
|
static
boolean
|
moveToLeftEdge(Spannable text, Layout layout)
|
static
boolean
|
moveToRightEdge(Spannable text, Layout layout)
|
static
boolean
|
moveUp(Spannable text, Layout layout)
Move the cursor to the buffer offset physically above the current
offset, to the beginning if it is on the top line but not at the
start, or return false if the cursor is already on the top line.
|
static
final
void
|
removeSelection(Spannable text)
Remove the selection or cursor, if any, from the text.
|
static
final
void
|
selectAll(Spannable text)
Select the entire text.
|
static
void
|
setSelection(Spannable text, int start, int stop)
Set the selection anchor to start and the selection edge
to stop.
|
static
final
void
|
setSelection(Spannable text, int index)
Move the cursor to offset index.
|
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 millis, 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 millis)
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.
|
|
Fields
SELECTION_END
Object SELECTION_END
SELECTION_START
Object SELECTION_START
Public methods
extendDown
boolean extendDown (Spannable text,
Layout layout)
Move the selection end to the buffer offset physically below
the current selection end.
| Parameters |
|---|
text |
Spannable
|
layout |
Layout
|
extendLeft
boolean extendLeft (Spannable text,
Layout layout)
Move the selection end to the buffer offset physically to the left of
the current selection end.
| Parameters |
|---|
text |
Spannable
|
layout |
Layout
|
extendRight
boolean extendRight (Spannable text,
Layout layout)
Move the selection end to the buffer offset physically to the right of
the current selection end.
| Parameters |
|---|
text |
Spannable
|
layout |
Layout
|
extendSelection
void extendSelection (Spannable text,
int index)
Move the selection edge to offset index.
| Parameters |
|---|
text |
Spannable
|
index |
int
|
extendToLeftEdge
boolean extendToLeftEdge (Spannable text,
Layout layout)
| Parameters |
|---|
text |
Spannable
|
layout |
Layout
|
extendToRightEdge
boolean extendToRightEdge (Spannable text,
Layout layout)
| Parameters |
|---|
text |
Spannable
|
layout |
Layout
|
extendUp
boolean extendUp (Spannable text,
Layout layout)
Move the selection end to the buffer offset physically above
the current selection end.
| Parameters |
|---|
text |
Spannable
|
layout |
Layout
|
getSelectionEnd
int getSelectionEnd (CharSequence text)
Return the offset of the selection edge or cursor, or -1 if
there is no selection or cursor.
| Parameters |
|---|
text |
CharSequence
|
getSelectionStart
int getSelectionStart (CharSequence text)
Return the offset of the selection anchor or cursor, or -1 if
there is no selection or cursor.
| Parameters |
|---|
text |
CharSequence
|
moveDown
boolean moveDown (Spannable text,
Layout layout)
Move the cursor to the buffer offset physically below the current
offset, to the end of the buffer if it is on the bottom line but
not at the end, or return false if the cursor is already at the
end of the buffer.
| Parameters |
|---|
text |
Spannable
|
layout |
Layout
|
moveLeft
boolean moveLeft (Spannable text,
Layout layout)
Move the cursor to the buffer offset physically to the left of
the current offset, or return false if the cursor is already
at the left edge of the line and there is not another line to move it to.
| Parameters |
|---|
text |
Spannable
|
layout |
Layout
|
moveRight
boolean moveRight (Spannable text,
Layout layout)
Move the cursor to the buffer offset physically to the right of
the current offset, or return false if the cursor is already at
at the right edge of the line and there is not another line
to move it to.
| Parameters |
|---|
text |
Spannable
|
layout |
Layout
|
moveToLeftEdge
boolean moveToLeftEdge (Spannable text,
Layout layout)
| Parameters |
|---|
text |
Spannable
|
layout |
Layout
|
moveToRightEdge
boolean moveToRightEdge (Spannable text,
Layout layout)
| Parameters |
|---|
text |
Spannable
|
layout |
Layout
|
moveUp
boolean moveUp (Spannable text,
Layout layout)
Move the cursor to the buffer offset physically above the current
offset, to the beginning if it is on the top line but not at the
start, or return false if the cursor is already on the top line.
| Parameters |
|---|
text |
Spannable
|
layout |
Layout
|
removeSelection
void removeSelection (Spannable text)
Remove the selection or cursor, if any, from the text.
| Parameters |
|---|
text |
Spannable
|
selectAll
void selectAll (Spannable text)
Select the entire text.
| Parameters |
|---|
text |
Spannable
|
setSelection
void setSelection (Spannable text,
int start,
int stop)
Set the selection anchor to start and the selection edge
to stop.
| Parameters |
|---|
text |
Spannable
|
start |
int
|
stop |
int
|
setSelection
void setSelection (Spannable text,
int index)
Move the cursor to offset index.
| Parameters |
|---|
text |
Spannable
|
index |
int
|
Developers