public
static
abstract
class
WindowId.FocusObserver
extends Object
| java.lang.Object | |
| ↳ | android.view.WindowId.FocusObserver |
Subclass for observing changes to the focus state of an WindowId.
You should use the same instance of this class for observing multiple
WindowId objects, since this class is fairly heavy-weight -- the
base class includes all of the mechanisms for connecting to and receiving updates
from the window.
Public constructors | |
|---|---|
WindowId.FocusObserver()
Construct a new observer. |
|
Public methods | |
|---|---|
abstract
void
|
onFocusGained(WindowId token)
Called when one of the monitored windows gains input focus. |
abstract
void
|
onFocusLost(WindowId token)
Called when one of the monitored windows loses input focus. |
Inherited methods | |
|---|---|
 From
class
java.lang.Object
| |
WindowId.FocusObserver ()
Construct a new observer. This observer will be configured so that all of its callbacks are dispatched on the current calling thread.
void onFocusGained (WindowId token)
Called when one of the monitored windows gains input focus.
| Parameters | |
|---|---|
token |
WindowId
|
void onFocusLost (WindowId token)
Called when one of the monitored windows loses input focus.
| Parameters | |
|---|---|
token |
WindowId
|
Developers