Added in API level 34

Summary: Ctors | Methods | Inherited Methods

VirtualDisplayConfig.Builder

---

Kotlin |Java

public static final class VirtualDisplayConfig.Builder
extends Object

java.lang.Object
↳	android.hardware.display.VirtualDisplayConfig.Builder

---

A builder for VirtualDisplayConfig.

Summary

Public constructors
Builder(String name, int width, int height, int densityDpi) Creates a new Builder.

Public methods
VirtualDisplayConfig.Builder	addDisplayCategory(String displayCategory) Adds a display category.
VirtualDisplayConfig	build() Builds the VirtualDisplayConfig instance.
VirtualDisplayConfig.Builder	setBrightnessListener(Executor executor, VirtualDisplayConfig.BrightnessListener listener) Sets the listener to get notified about changes in the display brightness.
VirtualDisplayConfig.Builder	setDefaultBrightness(float brightness) Sets the default brightness of the display.
VirtualDisplayConfig.Builder	setDimBrightness(float brightness) Sets the dim brightness of the display.
VirtualDisplayConfig.Builder	setDisplayCategories(Set<String> displayCategories) Sets the display categories.
VirtualDisplayConfig.Builder	setFlags(int flags) Sets the virtual display flags, a combination of DisplayManager.VIRTUAL_DISPLAY_FLAG_PUBLIC, DisplayManager.VIRTUAL_DISPLAY_FLAG_PRESENTATION, DisplayManager.VIRTUAL_DISPLAY_FLAG_SECURE, DisplayManager.VIRTUAL_DISPLAY_FLAG_OWN_CONTENT_ONLY, or DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR.
VirtualDisplayConfig.Builder	setRequestedRefreshRate(float requestedRefreshRate) Sets the refresh rate of a virtual display in frames per second.
VirtualDisplayConfig.Builder	setSurface(Surface surface) Sets the surface to which the content of the virtual display should be rendered.

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.

Public constructors

Builder

Added in API level 34

public Builder (String name, 
                int width, 
                int height, 
                int densityDpi)

Creates a new Builder.

Parameters
name	String: The name of the virtual display, must be non-empty. This value cannot be null.
width	int: The width of the virtual display in pixels. Must be greater than 0. Value is 1 or greater
height	int: The height of the virtual display in pixels. Must be greater than 0. Value is 1 or greater
densityDpi	int: The density of the virtual display in dpi. Must be greater than 0. Value is 1 or greater

Public methods

addDisplayCategory

Added in API level 34

public VirtualDisplayConfig.Builder addDisplayCategory (String displayCategory)

Adds a display category.

Parameters
displayCategory	String: This value cannot be null.

Returns
VirtualDisplayConfig.Builder	This value cannot be null.

See also:

• setDisplayCategories(Set)

build

Added in API level 34

public VirtualDisplayConfig build ()

Builds the VirtualDisplayConfig instance.

Returns
VirtualDisplayConfig	This value cannot be null.

Throws
IllegalArgumentException	if the dim brightness is set to a value greater than the default brightness.

setBrightnessListener

Added in Android Baklava

public VirtualDisplayConfig.Builder setBrightnessListener (Executor executor, 
                VirtualDisplayConfig.BrightnessListener listener)

Sets the listener to get notified about changes in the display brightness.

Parameters
executor	Executor: The executor where the callback is executed on. This value cannot be null. Callback and listener events are dispatched through this Executor, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use Context.getMainExecutor(). Otherwise, provide an Executor that dispatches to an appropriate thread.
listener	VirtualDisplayConfig.BrightnessListener: The listener to get notified when the display brightness has changed. This value cannot be null.

Returns
VirtualDisplayConfig.Builder	This value cannot be null.

setDefaultBrightness

Added in Android Baklava

public VirtualDisplayConfig.Builder setDefaultBrightness (float brightness)

Sets the default brightness of the display.

The system will use this brightness value whenever the display should be bright, i.e. it is powered on and not modified due to user activity or app activity.

Value of 0.0 indicates the minimum supported brightness and value of 1.0 indicates the maximum supported brightness.

If unset, defaults to 0.0

Parameters
brightness	float: Value is between 0.0f and 1.0f inclusive

Returns
VirtualDisplayConfig.Builder	This value cannot be null.

Throws
IllegalArgumentException	if the brightness is outside the valid range [0.0, 1.0]

See also:

• View.setKeepScreenOn(boolean)
• setBrightnessListener(Executor, BrightnessListener)

setDimBrightness

Added in Android Baklava

public VirtualDisplayConfig.Builder setDimBrightness (float brightness)

Sets the dim brightness of the display.

The system will use this brightness value whenever the display should be dim, i.e. it is powered on and dimmed due to user activity or app activity.

Value of 0.0 indicates the minimum supported brightness and value of 1.0 indicates the maximum supported brightness.

If set, the default brightness must also be set to a value greater or equal to the dim brightness. If unset, defaults to the system default.

Parameters
brightness	float: Value is between 0.0f and 1.0f inclusive

Returns
VirtualDisplayConfig.Builder	This value cannot be null.

Throws
IllegalArgumentException	if the brightness is outside the valid range [0.0, 1.0]

See also:

• setDefaultBrightness(float)
• setBrightnessListener(Executor, BrightnessListener)

setDisplayCategories

Added in API level 34

public VirtualDisplayConfig.Builder setDisplayCategories (Set<String> displayCategories)

Sets the display categories.

The categories of the display indicate the type of activities allowed to run on that display. Activities can declare a display category using ActivityInfo.requiredDisplayCategory.

Parameters
displayCategories	Set: This value cannot be null.

Returns
VirtualDisplayConfig.Builder	This value cannot be null.

setFlags

Added in API level 34

public VirtualDisplayConfig.Builder setFlags (int flags)

Sets the virtual display flags, a combination of DisplayManager.VIRTUAL_DISPLAY_FLAG_PUBLIC, DisplayManager.VIRTUAL_DISPLAY_FLAG_PRESENTATION, DisplayManager.VIRTUAL_DISPLAY_FLAG_SECURE, DisplayManager.VIRTUAL_DISPLAY_FLAG_OWN_CONTENT_ONLY, or DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR.

Parameters

flags

int: Value is either 0 or a combination of DisplayManager.VIRTUAL_DISPLAY_FLAG_PUBLIC, DisplayManager.VIRTUAL_DISPLAY_FLAG_PRESENTATION, DisplayManager.VIRTUAL_DISPLAY_FLAG_SECURE, DisplayManager.VIRTUAL_DISPLAY_FLAG_OWN_CONTENT_ONLY, DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR, android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_CAN_SHOW_WITH_INSECURE_KEYGUARD, android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_SUPPORTS_TOUCH, android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_ROTATES_WITH_CONTENT, android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_DESTROY_CONTENT_ON_REMOVAL, android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_SHOULD_SHOW_SYSTEM_DECORATIONS, android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_TRUSTED, android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_OWN_DISPLAY_GROUP, android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_ALWAYS_UNLOCKED, android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_TOUCH_FEEDBACK_DISABLED, android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_OWN_FOCUS, and android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_STEAL_TOP_FOCUS_DISABLED

Returns
VirtualDisplayConfig.Builder	This value cannot be null.

setRequestedRefreshRate

Added in API level 34

public VirtualDisplayConfig.Builder setRequestedRefreshRate (float requestedRefreshRate)

Sets the refresh rate of a virtual display in frames per second.

For best results, specify a divisor of the physical refresh rate, e.g., 30 or 60 on a 120hz display. If an arbitrary refresh rate is specified, the rate will be rounded up to a divisor of the physical display. If unset or zero, the virtual display will be refreshed at the physical display refresh rate.

Parameters
requestedRefreshRate	float: Value is 0.0f or greater

Returns
VirtualDisplayConfig.Builder	This value cannot be null.

See also:

• Display.getRefreshRate()

setSurface

Added in API level 34

public VirtualDisplayConfig.Builder setSurface (Surface surface)

Sets the surface to which the content of the virtual display should be rendered.

The surface can also be set after the display creation using VirtualDisplay.setSurface(Surface).

Parameters
surface	Surface: This value may be null.

Returns
VirtualDisplayConfig.Builder	This value cannot be null.