Package org.robolectric.shadows

Class ShadowDisplayManager

java.lang.Object

org.robolectric.shadows.ShadowDisplayManager

@Implements(value=android.hardware.display.DisplayManager.class,
            minSdk=17)
public class ShadowDisplayManager
extends Object

For tests, display properties may be changed and devices may be added or removed programmatically.

Constructor Summary

Constructors

Constructor and Description
ShadowDisplayManager()

Method Summary

Modifier and Type	Method and Description
protected void	__constructor__(Context context)
static int	addDisplay(String qualifiersStr) Adds a simulated display and drain the main looper queue to ensure all the callbacks are processed.
static void	changeDisplay(int displayId, String qualifiersStr) Changes properties of a simulated display.
static void	configureDefaultDisplay(Configuration configuration, DisplayMetrics displayMetrics) internal only
float	getSaturationLevel() Returns the current display saturation level set via DisplayManager.setSaturationLevel(float).
static void	removeDisplay(int displayId) Removes a simulated display and idles the main looper to ensure all listeners are notified.
void	setSaturationLevel(float level) Sets the current display saturation level.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ShadowDisplayManager

public ShadowDisplayManager()

Method Detail

__constructor__

@Implementation
protected void __constructor__(Context context)

addDisplay

public static int addDisplay(String qualifiersStr)

Adds a simulated display and drain the main looper queue to ensure all the callbacks are processed.

Parameters:

qualifiersStr - the Qualifiers string representing characteristics of the new display.

Returns:

the new display’s ID

configureDefaultDisplay

public static void configureDefaultDisplay(Configuration configuration,
                                           DisplayMetrics displayMetrics)

internal only

changeDisplay

public static void changeDisplay(int displayId,
                                 String qualifiersStr)

Changes properties of a simulated display. If qualifiersStr starts with a plus (+) sign, the display’s previous configuration is modified with the given qualifiers; otherwise defaults are applied as described here.

Idles the main looper to ensure all listeners are notified.

Parameters:

displayId - the display id to change

qualifiersStr - the Qualifiers string representing characteristics of the new display

removeDisplay

public static void removeDisplay(int displayId)

Removes a simulated display and idles the main looper to ensure all listeners are notified.

Parameters:

displayId - the display id to remove

getSaturationLevel

public float getSaturationLevel()

Returns the current display saturation level set via DisplayManager.setSaturationLevel(float).

setSaturationLevel

public void setSaturationLevel(float level)

Sets the current display saturation level.

This is a workaround for tests which cannot use the relevant hidden SystemApi, DisplayManager.setSaturationLevel(float).