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Added in API level 23

Display.Mode

public static final class Display.Mode
extends Object implements Parcelable

java.lang.Object
   ↳ android.view.Display.Mode


A mode supported by a given display.

See also:

Summary

Inherited constants

From interface android.os.Parcelable

Fields

public static final Creator<Display.Mode> CREATOR

Public methods

int describeContents()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.

boolean equals(Object other)

Indicates whether some other object is "equal to" this one.

int getModeId()

Returns this mode's id.

int getPhysicalHeight()

Returns the physical height of the display in pixels when configured in this mode's resolution.

int getPhysicalWidth()

Returns the physical width of the display in pixels when configured in this mode's resolution.

float getRefreshRate()

Returns the refresh rate in frames per second.

int hashCode()

Returns a hash code value for the object.

String toString()

Returns a string representation of the object.

void writeToParcel(Parcel out, int parcelableFlags)

Flatten this object in to a Parcel.

Inherited methods

From class java.lang.Object
From interface android.os.Parcelable

Fields

CREATOR

Added in API level 23
Creator<Display.Mode> CREATOR

Public methods

describeContents

Added in API level 23
int describeContents ()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(Parcel, int), the return value of this method must include the CONTENTS_FILE_DESCRIPTOR bit.

Returns
int a bitmask indicating the set of special object types marshaled by this Parcelable object instance.

equals

Added in API level 23
boolean equals (Object other)

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object (x == y has the value true).

Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.

Parameters
other Object: the reference object with which to compare.
Returns
boolean true if this object is the same as the obj argument; false otherwise.

getModeId

Added in API level 23
int getModeId ()

Returns this mode's id.

Returns
int

getPhysicalHeight

Added in API level 23
int getPhysicalHeight ()

Returns the physical height of the display in pixels when configured in this mode's resolution.

Note that due to application UI scaling, the number of pixels made available to applications when the mode is active (as reported by getHeight() may differ from the mode's actual resolution (as reported by this function).

For example, applications running on a 4K display may have their UI laid out and rendered in 1080p and then scaled up. Applications can take advantage of the extra resolution by rendering content through a SurfaceView using full size buffers.

Returns
int

getPhysicalWidth

Added in API level 23
int getPhysicalWidth ()

Returns the physical width of the display in pixels when configured in this mode's resolution.

Note that due to application UI scaling, the number of pixels made available to applications when the mode is active (as reported by getWidth() may differ from the mode's actual resolution (as reported by this function).

For example, applications running on a 4K display may have their UI laid out and rendered in 1080p and then scaled up. Applications can take advantage of the extra resolution by rendering content through a SurfaceView using full size buffers.

Returns
int

getRefreshRate

Added in API level 23
float getRefreshRate ()

Returns the refresh rate in frames per second.

Returns
float

hashCode

Added in API level 23
int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)

Returns
int a hash code value for this object.

toString

Added in API level 23
String toString ()

Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

 getClass().getName() + '@' + Integer.toHexString(hashCode())
 

Returns
String a string representation of the object.

writeToParcel

Added in API level 23
void writeToParcel (Parcel out, 
                int parcelableFlags)

Flatten this object in to a Parcel.

Parameters
out Parcel: The Parcel in which the object should be written.
parcelableFlags int: Additional flags about how the object should be written. May be 0 or PARCELABLE_WRITE_RETURN_VALUE.

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