Added in API level 1

RotateAnimation


open class RotateAnimation : Animation
kotlin.Any
   ↳ android.view.animation.Animation
   ↳ android.view.animation.RotateAnimation

An animation that controls the rotation of an object. This rotation takes place in the X-Y plane. You can specify the point to use for the center of the rotation, where (0,0) is the top left point. If not specified, (0,0) is the default rotation point.

Summary

Inherited constants
Public constructors
RotateAnimation(context: Context!, attrs: AttributeSet!)

Constructor used when a RotateAnimation is loaded from a resource.

RotateAnimation(fromDegrees: Float, toDegrees: Float)

Constructor to use when building a RotateAnimation from code.

RotateAnimation(fromDegrees: Float, toDegrees: Float, pivotX: Float, pivotY: Float)

Constructor to use when building a RotateAnimation from code

RotateAnimation(fromDegrees: Float, toDegrees: Float, pivotXType: Int, pivotXValue: Float, pivotYType: Int, pivotYValue: Float)

Constructor to use when building a RotateAnimation from code

Public methods
open Unit
initialize(width: Int, height: Int, parentWidth: Int, parentHeight: Int)

Protected methods
open Unit
applyTransformation(interpolatedTime: Float, t: Transformation!)

Inherited functions

Public constructors

RotateAnimation

Added in API level 1
RotateAnimation(
    context: Context!,
    attrs: AttributeSet!)

Constructor used when a RotateAnimation is loaded from a resource.

Parameters
context Context!: Application context to use
attrs AttributeSet!: Attribute set from which to read values

RotateAnimation

Added in API level 1
RotateAnimation(
    fromDegrees: Float,
    toDegrees: Float)

Constructor to use when building a RotateAnimation from code. Default pivotX/pivotY point is (0,0).

Parameters
fromDegrees Float: Rotation offset to apply at the start of the animation.
toDegrees Float: Rotation offset to apply at the end of the animation.

RotateAnimation

Added in API level 1
RotateAnimation(
    fromDegrees: Float,
    toDegrees: Float,
    pivotX: Float,
    pivotY: Float)

Constructor to use when building a RotateAnimation from code

Parameters
fromDegrees Float: Rotation offset to apply at the start of the animation.
toDegrees Float: Rotation offset to apply at the end of the animation.
pivotX Float: The X coordinate of the point about which the object is being rotated, specified as an absolute number where 0 is the left edge.
pivotY Float: The Y coordinate of the point about which the object is being rotated, specified as an absolute number where 0 is the top edge.

RotateAnimation

Added in API level 1
RotateAnimation(
    fromDegrees: Float,
    toDegrees: Float,
    pivotXType: Int,
    pivotXValue: Float,
    pivotYType: Int,
    pivotYValue: Float)

Constructor to use when building a RotateAnimation from code

Parameters
fromDegrees Float: Rotation offset to apply at the start of the animation.
toDegrees Float: Rotation offset to apply at the end of the animation.
pivotXType Int: Specifies how pivotXValue should be interpreted. One of Animation.ABSOLUTE, Animation.RELATIVE_TO_SELF, or Animation.RELATIVE_TO_PARENT.
pivotXValue Float: The X coordinate of the point about which the object is being rotated, specified as an absolute number where 0 is the left edge. This value can either be an absolute number if pivotXType is ABSOLUTE, or a percentage (where 1.0 is 100%) otherwise.
pivotYType Int: Specifies how pivotYValue should be interpreted. One of Animation.ABSOLUTE, Animation.RELATIVE_TO_SELF, or Animation.RELATIVE_TO_PARENT.
pivotYValue Float: The Y coordinate of the point about which the object is being rotated, specified as an absolute number where 0 is the top edge. This value can either be an absolute number if pivotYType is ABSOLUTE, or a percentage (where 1.0 is 100%) otherwise.

Public methods

initialize

Added in API level 1
open fun initialize(
    width: Int,
    height: Int,
    parentWidth: Int,
    parentHeight: Int
): Unit
Parameters
width Int: Width of the object being animated
height Int: Height of the object being animated
parentWidth Int: Width of the animated object's parent
parentHeight Int: Height of the animated object's parent

Protected methods

applyTransformation

Added in API level 1
protected open fun applyTransformation(
    interpolatedTime: Float,
    t: Transformation!
): Unit
Parameters
interpolatedTime Float: The value of the normalized time (0.0 to 1.0) after it has been run through the interpolation function.
t Transformation!: The Transformation object to fill in with the current transforms.