public
class
Point
extends Object
implements
Parcelable
| java.lang.Object | |
| ↳ | android.graphics.Point |
Point holds two integer coordinates
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
| |
int describeContents ()
Parcelable interface methods
| Returns | |
|---|---|
int |
a bitmask indicating the set of special object types marshaled by this Parcelable object instance. |
Developers
boolean equals (int x,
int y)
Returns true if the point's coordinates equal (x,y)
| Parameters | |
|---|---|
x |
int
|
y |
int
|
| Returns | |
|---|---|
boolean |
|
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:
x, x.equals(x) should return
true.
x and y, x.equals(y)
should return true if and only if
y.equals(x) returns true.
x, y, and z, if
x.equals(y) returns true and
y.equals(z) returns true, then
x.equals(z) should return true.
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.
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. |
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:
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.
equals(Object)
method, then calling the hashCode method on each of
the two objects must produce the same integer result.
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. |
void offset (int dx,
int dy)
Offset the point's coordinates by dx, dy
| Parameters | |
|---|---|
dx |
int
|
dy |
int
|
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
|
void set (int x,
int y)
Set the point's x and y coordinates
| Parameters | |
|---|---|
x |
int
|
y |
int
|
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. |
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.
|