public
class
Transformation
extends Object
| java.lang.Object | |
| ↳ | android.view.animation.Transformation |
Defines the transformation to be applied at one point in time of an Animation.
Constants | |
|---|---|
int |
TYPE_ALPHA
Indicates a transformation that applies an alpha only (uses an identity matrix.) |
int |
TYPE_BOTH
Indicates a transformation that applies an alpha and a matrix. |
int |
TYPE_IDENTITY
Indicates a transformation that has no effect (alpha = 1 and identity matrix.) |
int |
TYPE_MATRIX
Indicates a transformation that applies a matrix only (alpha = 1.) |
Fields | |
|---|---|
protected
float |
mAlpha
|
protected
Matrix |
mMatrix
|
protected
int |
mTransformationType
|
Public constructors | |
|---|---|
Transformation()
Creates a new transformation with alpha = 1 and the identity matrix. |
|
Public methods | |
|---|---|
void
|
clear()
Reset the transformation to a state that leaves the object being animated in an unmodified state. |
void
|
compose(Transformation t)
Apply this Transformation to an existing Transformation, e.g. |
float
|
getAlpha()
|
Matrix
|
getMatrix()
|
int
|
getTransformationType()
Indicates the nature of this transformation. |
void
|
set(Transformation t)
Clones the specified transformation. |
void
|
setAlpha(float alpha)
Sets the degree of transparency |
void
|
setTransformationType(int transformationType)
Sets the transformation type. |
String
|
toShortString()
Return a string representation of the transformation in a compact form. |
String
|
toString()
Returns a string representation of the object. |
Inherited methods | |
|---|---|
 From
class
java.lang.Object
| |
int TYPE_ALPHA
Indicates a transformation that applies an alpha only (uses an identity matrix.)
Constant Value: 1 (0x00000001)
int TYPE_BOTH
Indicates a transformation that applies an alpha and a matrix.
Constant Value: 3 (0x00000003)
int TYPE_IDENTITY
Indicates a transformation that has no effect (alpha = 1 and identity matrix.)
Constant Value: 0 (0x00000000)
int TYPE_MATRIX
Indicates a transformation that applies a matrix only (alpha = 1.)
Constant Value: 2 (0x00000002)
Transformation ()
Creates a new transformation with alpha = 1 and the identity matrix.
void clear ()
Reset the transformation to a state that leaves the object
being animated in an unmodified state. The transformation type is
TYPE_BOTH by default.
void compose (Transformation t)
Apply this Transformation to an existing Transformation, e.g. apply a scale effect to something that has already been rotated.
Matrix getMatrix ()
| Returns | |
|---|---|
Matrix |
The 3x3 Matrix representing the trnasformation to apply to the coordinates of the object being animated |
int getTransformationType ()
Indicates the nature of this transformation.
| Returns | |
|---|---|
int |
TYPE_ALPHA, TYPE_MATRIX,
TYPE_BOTH or TYPE_IDENTITY.
|
void set (Transformation t)
Clones the specified transformation.
| Parameters | |
|---|---|
t |
Transformation:
The transformation to clone.
|
void setAlpha (float alpha)
Sets the degree of transparency
| Parameters | |
|---|---|
alpha |
float:
1.0 means fully opaqe and 0.0 means fully transparent
|
void setTransformationType (int transformationType)
Sets the transformation type.
| Parameters | |
|---|---|
transformationType |
int:
One of TYPE_ALPHA,
TYPE_MATRIX, TYPE_BOTH or
TYPE_IDENTITY.
|
String toShortString ()
Return a string representation of the transformation in a compact form.
| Returns | |
|---|---|
String |
|
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. |
Developers