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ViewOutlineProvider
public
abstract
class
ViewOutlineProvider
extends Object
Interface by which a View builds its Outline
, used for shadow casting and clipping.
Summary
Fields |
public
static
final
ViewOutlineProvider |
BACKGROUND
Default outline provider for Views, which queries the Outline from the View's background,
or generates a 0 alpha, rectangular Outline the size of the View if a background
isn't present.
|
public
static
final
ViewOutlineProvider |
BOUNDS
Maintains the outline of the View to match its rectangular bounds,
at 1.0f alpha.
|
public
static
final
ViewOutlineProvider |
PADDED_BOUNDS
Maintains the outline of the View to match its rectangular padded bounds,
at 1.0f alpha.
|
Public methods |
abstract
void
|
getOutline(View view, Outline outline)
Called to get the provider to populate the Outline.
|
Inherited methods |
From class
java.lang.Object
Object
|
clone()
Creates and returns a copy of this object.
|
boolean
|
equals(Object obj)
Indicates whether some other object is "equal to" this one.
|
void
|
finalize()
Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
|
final
Class<?>
|
getClass()
Returns the runtime class of this Object .
|
int
|
hashCode()
Returns a hash code value for the object.
|
final
void
|
notify()
Wakes up a single thread that is waiting on this object's
monitor.
|
final
void
|
notifyAll()
Wakes up all threads that are waiting on this object's monitor.
|
String
|
toString()
Returns a string representation of the object.
|
final
void
|
wait(long timeoutMillis, int nanos)
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted, or until a
certain amount of real time has elapsed.
|
final
void
|
wait(long timeoutMillis)
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted, or until a
certain amount of real time has elapsed.
|
final
void
|
wait()
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted.
|
|
Fields
BACKGROUND
public static final ViewOutlineProvider BACKGROUND
Default outline provider for Views, which queries the Outline from the View's background,
or generates a 0 alpha, rectangular Outline the size of the View if a background
isn't present.
BOUNDS
public static final ViewOutlineProvider BOUNDS
Maintains the outline of the View to match its rectangular bounds,
at 1.0f
alpha.
This can be used to enable Views that are opaque but lacking a background cast a shadow.
PADDED_BOUNDS
public static final ViewOutlineProvider PADDED_BOUNDS
Maintains the outline of the View to match its rectangular padded bounds,
at 1.0f
alpha.
This can be used to enable Views that are opaque but lacking a background cast a shadow.
Public constructors
ViewOutlineProvider
public ViewOutlineProvider ()
Public methods
getOutline
public abstract void getOutline (View view,
Outline outline)
Called to get the provider to populate the Outline.
This method will be called by a View when its owned Drawables are invalidated, when the
View's size changes, or if View#invalidateOutline()
is called
explicitly.
The input outline is empty and has an alpha of 1.0f
.
Parameters |
view |
View : The view building the outline. |
outline |
Outline : The empty outline to be populated. |
Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
Last updated 2024-04-04 UTC.
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