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Added in API level 19

PrintAttributes.Resolution

public static final class PrintAttributes.Resolution
extends Object

java.lang.Object
   ↳ android.print.PrintAttributes.Resolution


This class specifies a supported resolution in DPI (dots per inch). Resolution defines how many points with different color can be placed on one inch in horizontal or vertical direction of the target media. For example, a printer with 600 DPI can produce higher quality images the one with 300 DPI resolution.

Summary

Public constructors

PrintAttributes.Resolution(String id, String label, int horizontalDpi, int verticalDpi)

Creates a new instance.

Public methods

boolean equals(Object obj)

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

int getHorizontalDpi()

Gets the horizontal resolution in DPI (dots per inch).

String getId()

Gets the unique resolution id.

String getLabel()

Gets the resolution human readable label.

int getVerticalDpi()

Gets the vertical resolution in DPI (dots per inch).

int hashCode()

Returns a hash code value for the object.

String toString()

Returns a string representation of the object.

Inherited methods

From class java.lang.Object

Public constructors

PrintAttributes.Resolution

Added in API level 19
PrintAttributes.Resolution (String id, 
                String label, 
                int horizontalDpi, 
                int verticalDpi)

Creates a new instance.

Parameters
id String: The unique resolution id. It is unique amongst other resolutions supported by the printer.
label String: The localized human readable label.
horizontalDpi int: The horizontal resolution in DPI (dots per inch).
verticalDpi int: The vertical resolution in DPI (dots per inch).
Throws
IllegalArgumentException If the id is empty or the label is empty or the horizontalDpi is less than or equal to zero or the verticalDpi is less than or equal to zero.

Public methods

equals

Added in API level 19
boolean equals (Object obj)

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

getHorizontalDpi

Added in API level 19
int getHorizontalDpi ()

Gets the horizontal resolution in DPI (dots per inch).

Returns
int The horizontal resolution.

getId

Added in API level 19
String getId ()

Gets the unique resolution id. It is unique amongst other resolutions supported by the printer.

This id is defined by the client that generated the resolution instance and should not be interpreted by other parties.

Returns
String The unique resolution id.

getLabel

Added in API level 19
String getLabel ()

Gets the resolution human readable label.

Returns
String The human readable label.

getVerticalDpi

Added in API level 19
int getVerticalDpi ()

Gets the vertical resolution in DPI (dots per inch).

Returns
int The vertical resolution.

hashCode

Added in API level 19
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 19
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.
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