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Point

public class Point
extends Object implements Parcelable

java.lang.Object
   ↳ android.graphics.Point


Point holds two integer coordinates

Summary

Inherited constants

From interface android.os.Parcelable

Fields

public static final Creator<Point> CREATOR

public int x

public int y

Public constructors

Point()
Point(int x, int y)
Point(Point src)

Public methods

int describeContents()

Parcelable interface methods

final boolean equals(int x, int y)

Returns true if the point's coordinates equal (x,y)

boolean equals(Object o)

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

int hashCode()

Returns a hash code value for the object.

final void negate()

Negate the point's coordinates

final void offset(int dx, int dy)

Offset the point's coordinates by dx, dy

void readFromParcel(Parcel in)

Set the point's coordinates from the data stored in the specified parcel.

void set(int x, int y)

Set the point's x and y coordinates

String toString()

Returns a string representation of the object.

void writeToParcel(Parcel out, int flags)

Write this point to the specified parcel.

Inherited methods

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

Fields

CREATOR

Added in API level 13
Creator<Point> CREATOR

x

Added in API level 1
int x

y

Added in API level 1
int y

Public constructors

Point

Added in API level 1
Point ()

Point

Added in API level 1
Point (int x, 
                int y)

Parameters
x int
y int

Point

Added in API level 1
Point (Point src)

Parameters
src Point

Public methods

describeContents

Added in API level 13
int describeContents ()

Parcelable interface methods

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

equals

Added in API level 1
boolean equals (int x, 
                int y)

Returns true if the point's coordinates equal (x,y)

Parameters
x int
y int
Returns
boolean

equals

Added in API level 1
boolean equals (Object o)

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

hashCode

Added in API level 1
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.

negate

Added in API level 1
void negate ()

Negate the point's coordinates

offset

Added in API level 1
void offset (int dx, 
                int dy)

Offset the point's coordinates by dx, dy

Parameters
dx int
dy int

readFromParcel

Added in API level 13
void readFromParcel (Parcel in)

Set the point's coordinates from the data stored in the specified parcel. To write a point to a parcel, call writeToParcel().

Parameters
in Parcel: The parcel to read the point's coordinates from

set

Added in API level 1
void set (int x, 
                int y)

Set the point's x and y coordinates

Parameters
x int
y int

toString

Added in API level 1
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 13
void writeToParcel (Parcel out, 
                int flags)

Write this point to the specified parcel. To restore a point from a parcel, use readFromParcel()

Parameters
out Parcel: The parcel to write the point's coordinates into
flags int: Additional flags about how the object should be written. May be 0 or PARCELABLE_WRITE_RETURN_VALUE.
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