Class Overview
The algorithm used for finding the next focusable view in a given direction
from a view that currently has focus.
Summary
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View
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findNearestTouchable(ViewGroup root, int x, int y, int direction, int[] deltas)
Find the nearest touchable view to the specified view.
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final
View
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findNextFocus(ViewGroup root, View focused, int direction)
Find the next view to take focus in root's descendants, starting from the view
that currently is focused.
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View
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findNextFocusFromRect(ViewGroup root, Rect focusedRect, int direction)
Find the next view to take focus in root's descendants, searching from
a particular rectangle in root's coordinates.
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static
FocusFinder
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getInstance()
Get the focus finder for this thread.
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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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Public Methods
public
View
findNearestTouchable
(ViewGroup root, int x, int y, int direction, int[] deltas)
Find the nearest touchable view to the specified view.
Parameters
| root
| The root of the tree in which to search |
| x
| X coordinate from which to start the search |
| y
| Y coordinate from which to start the search |
| direction
| Direction to look |
| deltas
| Offset from the to the edge of the nearest view. Note that this array
may already be populated with values. |
Returns
- The nearest touchable view, or null if none exists.
public
final
View
findNextFocus
(ViewGroup root, View focused, int direction)
Find the next view to take focus in root's descendants, starting from the view
that currently is focused.
Parameters
| root
| Contains focused. Cannot be null. |
| focused
| Has focus now. |
| direction
| Direction to look. |
Returns
- The next focusable view, or null if none exists.
public
View
findNextFocusFromRect
(ViewGroup root, Rect focusedRect, int direction)
Find the next view to take focus in root's descendants, searching from
a particular rectangle in root's coordinates.
Parameters
| root
| Contains focusedRect. Cannot be null. |
| focusedRect
| The starting point of the search. |
| direction
| Direction to look. |
Returns
- The next focusable view, or null if none exists.
public
static
FocusFinder
getInstance
()
Get the focus finder for this thread.
