MovementMethod
public
interface
MovementMethod
| android.text.method.MovementMethod
|
 Known Indirect Subclasses
|
Provides cursor positioning, scrolling and text selection functionality in a TextView.
The TextView delegates handling of key events, trackball motions and touches to
the movement method for purposes of content navigation. The framework automatically
selects an appropriate movement method based on the content of the TextView.
This interface is intended for use by the framework; it should not be implemented
directly by applications.
Summary
Public methods |
|---|
abstract
boolean
|
canSelectArbitrarily()
Returns true if this movement method allows arbitrary selection
of any text; false if it has no selection (like a movement method
that only scrolls) or a constrained selection (for example
limited to links.
|
abstract
void
|
initialize(TextView widget, Spannable text)
|
abstract
boolean
|
onGenericMotionEvent(TextView widget, Spannable text, MotionEvent event)
|
abstract
boolean
|
onKeyDown(TextView widget, Spannable text, int keyCode, KeyEvent event)
|
abstract
boolean
|
onKeyOther(TextView view, Spannable text, KeyEvent event)
If the key listener wants to other kinds of key events, return true,
otherwise return false and the caller (i.e.
|
abstract
boolean
|
onKeyUp(TextView widget, Spannable text, int keyCode, KeyEvent event)
|
abstract
void
|
onTakeFocus(TextView widget, Spannable text, int direction)
|
abstract
boolean
|
onTouchEvent(TextView widget, Spannable text, MotionEvent event)
|
abstract
boolean
|
onTrackballEvent(TextView widget, Spannable text, MotionEvent event)
|
Public methods
canSelectArbitrarily
boolean canSelectArbitrarily ()
Returns true if this movement method allows arbitrary selection
of any text; false if it has no selection (like a movement method
that only scrolls) or a constrained selection (for example
limited to links. The "Select All" menu item is disabled
if arbitrary selection is not allowed.
initialize
void initialize (TextView widget,
Spannable text)
| Parameters |
|---|
widget |
TextView
|
text |
Spannable
|
onGenericMotionEvent
boolean onGenericMotionEvent (TextView widget,
Spannable text,
MotionEvent event)
| Parameters |
|---|
widget |
TextView
|
text |
Spannable
|
event |
MotionEvent
|
onKeyDown
boolean onKeyDown (TextView widget,
Spannable text,
int keyCode,
KeyEvent event)
| Parameters |
|---|
widget |
TextView
|
text |
Spannable
|
keyCode |
int
|
event |
KeyEvent
|
onKeyOther
boolean onKeyOther (TextView view,
Spannable text,
KeyEvent event)
If the key listener wants to other kinds of key events, return true,
otherwise return false and the caller (i.e. the widget host)
will handle the key.
| Parameters |
|---|
view |
TextView
|
text |
Spannable
|
event |
KeyEvent
|
onKeyUp
boolean onKeyUp (TextView widget,
Spannable text,
int keyCode,
KeyEvent event)
| Parameters |
|---|
widget |
TextView
|
text |
Spannable
|
keyCode |
int
|
event |
KeyEvent
|
onTakeFocus
void onTakeFocus (TextView widget,
Spannable text,
int direction)
| Parameters |
|---|
widget |
TextView
|
text |
Spannable
|
direction |
int
|
onTouchEvent
boolean onTouchEvent (TextView widget,
Spannable text,
MotionEvent event)
| Parameters |
|---|
widget |
TextView
|
text |
Spannable
|
event |
MotionEvent
|
onTrackballEvent
boolean onTrackballEvent (TextView widget,
Spannable text,
MotionEvent event)
| Parameters |
|---|
widget |
TextView
|
text |
Spannable
|
event |
MotionEvent
|
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