ViewOutlineProvider

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.

Fields

public static final ViewOutlineProvider

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 Constructors
	ViewOutlineProvider()

Public Constructors

ViewOutlineProvider()

Public Methods
abstract void	getOutline(View view, Outline outline) Called to get the provider to populate the Outline.

Public Methods

abstract void

getOutline(View view, Outline outline)

Called to get the provider to populate the Outline.

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Inherited Methods

From class java.lang.Object

Object	clone() Creates and returns a copy of this `Object`.
boolean	equals(Object o) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of `Class` that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	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.
final void	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.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object.
final void	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.
final void	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.

Fields

public static final ViewOutlineProvider BACKGROUND

Added in API level 21

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

Added in API level 21

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.

public static final ViewOutlineProvider PADDED_BOUNDS

Added in API level 21

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 Methods

public abstract void getOutline (View view, Outline outline)

Added in API level 21

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 invalidateOutline() is called explicitly. The input outline is empty and has an alpha of 1.0f.

Parameters

view	The view building the outline.
outline	The empty outline to be populated.

Results

Annotations

Interfaces

Classes

Enums

Exceptions

Class Overview

Summary

Fields

public static final ViewOutlineProvider BACKGROUND

See Also

public static final ViewOutlineProvider BOUNDS

public static final ViewOutlineProvider PADDED_BOUNDS

Public Constructors

public ViewOutlineProvider ()

Public Methods

public abstract void getOutline (View view, Outline outline)

Parameters

java.lang.Object
↳	android.view.ViewOutlineProvider