 Known Direct Subclasses
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Known Indirect Subclasses
| LinkMovementMethod |
A movement method that traverses links in the text buffer and scrolls if necessary. |
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Class Overview
Base classes for movement methods.
Summary
| Public Methods |
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boolean
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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.
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void
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initialize(TextView widget, Spannable text)
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boolean
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onGenericMotionEvent(TextView widget, Spannable text, MotionEvent event)
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boolean
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onKeyDown(TextView widget, Spannable text, int keyCode, KeyEvent event)
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boolean
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onKeyOther(TextView widget, 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.
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boolean
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onKeyUp(TextView widget, Spannable text, int keyCode, KeyEvent event)
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void
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onTakeFocus(TextView widget, Spannable text, int direction)
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boolean
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onTouchEvent(TextView widget, Spannable text, MotionEvent event)
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boolean
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onTrackballEvent(TextView widget, Spannable text, MotionEvent event)
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| Protected Methods |
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boolean
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bottom(TextView widget, Spannable buffer)
Performs a bottom movement action.
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boolean
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down(TextView widget, Spannable buffer)
Performs a down movement action.
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boolean
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end(TextView widget, Spannable buffer)
Performs an end movement action.
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int
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getMovementMetaState(Spannable buffer, KeyEvent event)
Gets the meta state used for movement using the modifiers tracked by the text
buffer as well as those present in the key event.
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boolean
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handleMovementKey(TextView widget, Spannable buffer, int keyCode, int movementMetaState, KeyEvent event)
Performs a movement key action.
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boolean
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home(TextView widget, Spannable buffer)
Performs a home movement action.
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boolean
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left(TextView widget, Spannable buffer)
Performs a left movement action.
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boolean
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lineEnd(TextView widget, Spannable buffer)
Performs a line-end movement action.
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boolean
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lineStart(TextView widget, Spannable buffer)
Performs a line-start movement action.
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boolean
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pageDown(TextView widget, Spannable buffer)
Performs a page-down movement action.
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boolean
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pageUp(TextView widget, Spannable buffer)
Performs a page-up movement action.
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boolean
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right(TextView widget, Spannable buffer)
Performs a right movement action.
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boolean
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top(TextView widget, Spannable buffer)
Performs a top movement action.
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boolean
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up(TextView widget, Spannable buffer)
Performs an up movement action.
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[Expand]
Inherited Methods |
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From class
java.lang.Object
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Object
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clone()
Creates and returns a copy of this Object.
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boolean
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equals(Object o)
Compares this instance with the specified object and indicates if they
are equal.
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void
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finalize()
Invoked when the garbage collector has detected that this instance is no longer reachable.
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final
Class<?>
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getClass()
Returns the unique instance of Class that represents this
object's class. |
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int
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hashCode()
Returns an integer hash code for this object.
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final
void
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notify()
Causes a thread which is waiting on this object's monitor (by means of
calling one of the wait() methods) to be woken up.
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final
void
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notifyAll()
Causes all threads which are waiting on this object's monitor (by means
of calling one of the wait() methods) to be woken up.
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String
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toString()
Returns a string containing a concise, human-readable description of this
object.
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final
void
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wait()
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.
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final
void
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wait(long millis, int nanos)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
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final
void
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wait(long millis)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
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From interface
android.text.method.MovementMethod
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abstract
boolean
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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.
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abstract
void
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initialize(TextView widget, Spannable text)
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abstract
boolean
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onGenericMotionEvent(TextView widget, Spannable text, MotionEvent event)
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abstract
boolean
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onKeyDown(TextView widget, Spannable text, int keyCode, KeyEvent event)
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abstract
boolean
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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.
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abstract
boolean
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onKeyUp(TextView widget, Spannable text, int keyCode, KeyEvent event)
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abstract
void
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onTakeFocus(TextView widget, Spannable text, int direction)
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abstract
boolean
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onTouchEvent(TextView widget, Spannable text, MotionEvent event)
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abstract
boolean
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onTrackballEvent(TextView widget, Spannable text, MotionEvent event)
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Public Constructors
public
BaseMovementMethod
()
Public Methods
public
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.
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.
Protected Methods
protected
boolean
bottom
(TextView widget, Spannable buffer)
Performs a bottom movement action.
Moves the cursor or scrolls to the bottom of the buffer.
Parameters
| widget
| The text view. |
| buffer
| The text buffer. |
Returns
- True if the event was handled.
protected
boolean
down
(TextView widget, Spannable buffer)
Performs a down movement action.
Moves the cursor or scrolls down by one line.
Parameters
| widget
| The text view. |
| buffer
| The text buffer. |
Returns
- True if the event was handled.
protected
boolean
end
(TextView widget, Spannable buffer)
Performs an end movement action.
Moves the cursor or scrolls to the start of the line or to the top of the
document depending on whether the insertion point is being moved or
the document is being scrolled.
Parameters
| widget
| The text view. |
| buffer
| The text buffer. |
Returns
- True if the event was handled.
protected
int
getMovementMetaState
(Spannable buffer, KeyEvent event)
Gets the meta state used for movement using the modifiers tracked by the text
buffer as well as those present in the key event.
The movement meta state excludes the state of locked modifiers or the SHIFT key
since they are not used by movement actions (but they may be used for selection).
Parameters
| buffer
| The text buffer. |
| event
| The key event. |
Returns
- The keyboard meta states used for movement.
protected
boolean
handleMovementKey
(TextView widget, Spannable buffer, int keyCode, int movementMetaState, KeyEvent event)
Parameters
| widget
| The text view. |
| buffer
| The text buffer. |
| keyCode
| The key code. |
| movementMetaState
| The keyboard meta states used for movement. |
| event
| The key event. |
Returns
- True if the event was handled.
protected
boolean
home
(TextView widget, Spannable buffer)
Performs a home movement action.
Moves the cursor or scrolls to the start of the line or to the top of the
document depending on whether the insertion point is being moved or
the document is being scrolled.
Parameters
| widget
| The text view. |
| buffer
| The text buffer. |
Returns
- True if the event was handled.
protected
boolean
left
(TextView widget, Spannable buffer)
Performs a left movement action.
Moves the cursor or scrolls left by one character.
Parameters
| widget
| The text view. |
| buffer
| The text buffer. |
Returns
- True if the event was handled.
protected
boolean
lineEnd
(TextView widget, Spannable buffer)
Performs a line-end movement action.
Moves the cursor or scrolls to the end of the line.
Parameters
| widget
| The text view. |
| buffer
| The text buffer. |
Returns
- True if the event was handled.
protected
boolean
lineStart
(TextView widget, Spannable buffer)
Performs a line-start movement action.
Moves the cursor or scrolls to the start of the line.
Parameters
| widget
| The text view. |
| buffer
| The text buffer. |
Returns
- True if the event was handled.
protected
boolean
pageDown
(TextView widget, Spannable buffer)
Performs a page-down movement action.
Moves the cursor or scrolls down by one page.
Parameters
| widget
| The text view. |
| buffer
| The text buffer. |
Returns
- True if the event was handled.
protected
boolean
pageUp
(TextView widget, Spannable buffer)
Performs a page-up movement action.
Moves the cursor or scrolls up by one page.
Parameters
| widget
| The text view. |
| buffer
| The text buffer. |
Returns
- True if the event was handled.
protected
boolean
right
(TextView widget, Spannable buffer)
Performs a right movement action.
Moves the cursor or scrolls right by one character.
Parameters
| widget
| The text view. |
| buffer
| The text buffer. |
Returns
- True if the event was handled.
protected
boolean
top
(TextView widget, Spannable buffer)
Performs a top movement action.
Moves the cursor or scrolls to the top of the buffer.
Parameters
| widget
| The text view. |
| buffer
| The text buffer. |
Returns
- True if the event was handled.
protected
boolean
up
(TextView widget, Spannable buffer)
Performs an up movement action.
Moves the cursor or scrolls up by one line.
Parameters
| widget
| The text view. |
| buffer
| The text buffer. |
Returns
- True if the event was handled.
