android.view
public
class
android.view.FocusFinder
The algorithm used for finding the next focusable view in a given direction
from a view that currently has focus.
Summary
Public Methods
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait
Details
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 |
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. |
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.