Transformation

Kotlin |Java

open class Transformation

kotlin.Any
↳	android.view.animation.Transformation

Defines the transformation to be applied at one point in time of an Animation.

Summary

Constants
static Int	`TYPE_ALPHA` Indicates a transformation that applies an alpha only (uses an identity matrix.)
static Int	`TYPE_BOTH` Indicates a transformation that applies an alpha and a matrix.
static Int	`TYPE_IDENTITY` Indicates a transformation that has no effect (alpha = 1 and identity matrix.)
static Int	`TYPE_MATRIX` Indicates a transformation that applies a matrix only (alpha = 1.)

Public constructors
`Transformation()` Creates a new transformation with alpha = 1 and the identity matrix.

Public methods
open Unit	`clear()` Reset the transformation to a state that leaves the object being animated in an unmodified state.
open Unit	`compose(t: Transformation!)` Apply this Transformation to an existing Transformation, e.
open Float	`getAlpha()`
open Matrix!	`getMatrix()`
open Int	`getTransformationType()` Indicates the nature of this transformation.
open Unit	`set(t: Transformation!)` Clones the specified transformation.
open Unit	`setAlpha(alpha: Float)` Sets the degree of transparency
open Unit	`setTransformationType(transformationType: Int)` Sets the transformation type.
open String!	`toShortString()` Return a string representation of the transformation in a compact form.
open String	`toString()`

Properties
Float	`mAlpha`
Matrix!	`mMatrix`
Int	`mTransformationType`

Constants

TYPE_ALPHA

Added in API level 1

static val TYPE_ALPHA: Int

Indicates a transformation that applies an alpha only (uses an identity matrix.)

Value: 1

TYPE_BOTH

Added in API level 1

static val TYPE_BOTH: Int

Indicates a transformation that applies an alpha and a matrix.

Value: 3

TYPE_IDENTITY

Added in API level 1

static val TYPE_IDENTITY: Int

Indicates a transformation that has no effect (alpha = 1 and identity matrix.)

Value: 0

TYPE_MATRIX

Added in API level 1

static val TYPE_MATRIX: Int

Indicates a transformation that applies a matrix only (alpha = 1.)

Value: 2

Public constructors

Transformation

Added in API level 1

Transformation()

Creates a new transformation with alpha = 1 and the identity matrix.

Public methods

clear

Added in API level 1

open fun clear(): Unit

Reset the transformation to a state that leaves the object being animated in an unmodified state. The transformation type is TYPE_BOTH by default.

compose

Added in API level 1

open fun compose(t: Transformation!): Unit

Apply this Transformation to an existing Transformation, e.g. apply a scale effect to something that has already been rotated.

Parameters
`t`	Transformation!:

getAlpha

Added in API level 1

open fun getAlpha(): Float

Return
`Float`	The degree of transparency

getMatrix

Added in API level 1

open fun getMatrix(): Matrix!

Return
`Matrix!`	The 3x3 Matrix representing the transformation to apply to the coordinates of the object being animated

getTransformationType

Added in API level 1

open fun getTransformationType(): Int

Indicates the nature of this transformation.

Return
`Int`	`TYPE_ALPHA`, `TYPE_MATRIX`, `TYPE_BOTH` or `TYPE_IDENTITY`.

set

Added in API level 1

open fun set(t: Transformation!): Unit

Clones the specified transformation.

Parameters
`t`	Transformation!: The transformation to clone.

setAlpha

Added in API level 1

open fun setAlpha(alpha: Float): Unit

Sets the degree of transparency

Parameters
`alpha`	Float: 1.0 means fully opaque and 0.0 means fully transparent Value is between 0.0f and 1.0f inclusive

setTransformationType

Added in API level 1

open fun setTransformationType(transformationType: Int): Unit

Sets the transformation type.

Parameters
`transformationType`	Int: One of `TYPE_ALPHA`, `TYPE_MATRIX`, `TYPE_BOTH` or `TYPE_IDENTITY`.

toShortString

Added in API level 3

open fun toShortString(): String!

Return a string representation of the transformation in a compact form.

toString

Added in API level 1

open fun toString(): String

Return
`String`	a string representation of the object.

Properties

mAlpha

Added in API level 1

protected var mAlpha: Float

mMatrix

Added in API level 1

protected var mMatrix: Matrix!

mTransformationType

Added in API level 1

protected var mTransformationType: Int