# Transformation Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary:[Constants](https://developer.android.com/reference/android/view/animation/Transformation#constants)\|[Fields](https://developer.android.com/reference/android/view/animation/Transformation#lfields)\|[Ctors](https://developer.android.com/reference/android/view/animation/Transformation#pubctors)\|[Methods](https://developer.android.com/reference/android/view/animation/Transformation#pubmethods)\|[Inherited Methods](https://developer.android.com/reference/android/view/animation/Transformation#inhmethods) # Transformation *** ** * ** *** [Kotlin](https://developer.android.com/reference/kotlin/android/view/animation/Transformation "View this page in Kotlin")\|Java ` public class Transformation ` ` extends `[Object](https://developer.android.com/reference/java/lang/Object)` `` ` |---|---------------------------------------| | [java.lang.Object](https://developer.android.com/reference/java/lang/Object) || | ↳ | android.view.animation.Transformation |
*** ** * ** *** Defines the transformation to be applied at one point in time of an Animation. ## Summary | ### Constants || |-------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `int` | [TYPE_ALPHA](https://developer.android.com/reference/android/view/animation/Transformation#TYPE_ALPHA) Indicates a transformation that applies an alpha only (uses an identity matrix.) | | `int` | [TYPE_BOTH](https://developer.android.com/reference/android/view/animation/Transformation#TYPE_BOTH) Indicates a transformation that applies an alpha and a matrix. | | `int` | [TYPE_IDENTITY](https://developer.android.com/reference/android/view/animation/Transformation#TYPE_IDENTITY) Indicates a transformation that has no effect (alpha = 1 and identity matrix.) | | `int` | [TYPE_MATRIX](https://developer.android.com/reference/android/view/animation/Transformation#TYPE_MATRIX) Indicates a transformation that applies a matrix only (alpha = 1.) | | ### Fields || |----------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------| | ` protected float` | [mAlpha](https://developer.android.com/reference/android/view/animation/Transformation#mAlpha)
| | ` protected `[Matrix](https://developer.android.com/reference/android/graphics/Matrix) | [mMatrix](https://developer.android.com/reference/android/view/animation/Transformation#mMatrix)
| | ` protected int` | [mTransformationType](https://developer.android.com/reference/android/view/animation/Transformation#mTransformationType)
| | ### Public constructors || |-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---| | ` `[Transformation](https://developer.android.com/reference/android/view/animation/Transformation#Transformation())`() ` Creates a new transformation with alpha = 1 and the identity matrix. | | ### Public methods || |------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` void` | ` `[clear](https://developer.android.com/reference/android/view/animation/Transformation#clear())`() ` Reset the transformation to a state that leaves the object being animated in an unmodified state. | | ` void` | ` `[compose](https://developer.android.com/reference/android/view/animation/Transformation#compose(android.view.animation.Transformation))`(`[Transformation](https://developer.android.com/reference/android/view/animation/Transformation)` t) ` Apply this Transformation to an existing Transformation, e.g. apply a scale effect to something that has already been rotated. | | ` float` | ` `[getAlpha](https://developer.android.com/reference/android/view/animation/Transformation#getAlpha())`() ` | | ` `[Matrix](https://developer.android.com/reference/android/graphics/Matrix) | ` `[getMatrix](https://developer.android.com/reference/android/view/animation/Transformation#getMatrix())`() ` | | ` int` | ` `[getTransformationType](https://developer.android.com/reference/android/view/animation/Transformation#getTransformationType())`() ` Indicates the nature of this transformation. | | ` void` | ` `[set](https://developer.android.com/reference/android/view/animation/Transformation#set(android.view.animation.Transformation))`(`[Transformation](https://developer.android.com/reference/android/view/animation/Transformation)` t) ` Clones the specified transformation. | | ` void` | ` `[setAlpha](https://developer.android.com/reference/android/view/animation/Transformation#setAlpha(float))`(float alpha) ` Sets the degree of transparency | | ` void` | ` `[setTransformationType](https://developer.android.com/reference/android/view/animation/Transformation#setTransformationType(int))`(int transformationType) ` Sets the transformation type. | | ` `[String](https://developer.android.com/reference/java/lang/String) | ` `[toShortString](https://developer.android.com/reference/android/view/animation/Transformation#toShortString())`() ` Return a string representation of the transformation in a compact form. | | ` `[String](https://developer.android.com/reference/java/lang/String) | ` `[toString](https://developer.android.com/reference/android/view/animation/Transformation#toString())`() ` Returns a string representation of the object. | | ### Inherited methods | |-----------------------|---| | From class` `[java.lang.Object](https://developer.android.com/reference/java/lang/Object)` ` |--------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` `[Object](https://developer.android.com/reference/java/lang/Object) | ` `[clone](https://developer.android.com/reference/java/lang/Object#clone())`() ` Creates and returns a copy of this object. | | ` boolean` | ` `[equals](https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object))`(`[Object](https://developer.android.com/reference/java/lang/Object)` obj) ` Indicates whether some other object is "equal to" this one. | | ` void` | ` `[finalize](https://developer.android.com/reference/java/lang/Object#finalize())`() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. | | ` final `[Class](https://developer.android.com/reference/java/lang/Class)`` | ` `[getClass](https://developer.android.com/reference/java/lang/Object#getClass())`() ` Returns the runtime class of this`Object`. | | ` int` | ` `[hashCode](https://developer.android.com/reference/java/lang/Object#hashCode())`() ` Returns a hash code value for the object. | | ` final void` | ` `[notify](https://developer.android.com/reference/java/lang/Object#notify())`() ` Wakes up a single thread that is waiting on this object's monitor. | | ` final void` | ` `[notifyAll](https://developer.android.com/reference/java/lang/Object#notifyAll())`() ` Wakes up all threads that are waiting on this object's monitor. | | ` `[String](https://developer.android.com/reference/java/lang/String) | ` `[toString](https://developer.android.com/reference/java/lang/Object#toString())`() ` Returns a string representation of the object. | | ` final void` | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait(long,%20int))`(long timeoutMillis, int nanos) ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait(long))`(long timeoutMillis) ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait())`() ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*. | || ## Constants ### TYPE_ALPHA Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public static final int TYPE_ALPHA ``` Indicates a transformation that applies an alpha only (uses an identity matrix.)
Constant Value: 1 (0x00000001) ### TYPE_BOTH Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public static final int TYPE_BOTH ``` Indicates a transformation that applies an alpha and a matrix.
Constant Value: 3 (0x00000003) ### TYPE_IDENTITY Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public static final int TYPE_IDENTITY ``` Indicates a transformation that has no effect (alpha = 1 and identity matrix.)
Constant Value: 0 (0x00000000) ### TYPE_MATRIX Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public static final int TYPE_MATRIX ``` Indicates a transformation that applies a matrix only (alpha = 1.)
Constant Value: 2 (0x00000002) ## Fields ### mAlpha Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` protected float mAlpha ```

### mMatrix Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` protected Matrix mMatrix ```

### mTransformationType Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` protected int mTransformationType ```

## Public constructors ### Transformation Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public Transformation () ``` Creates a new transformation with alpha = 1 and the identity matrix.
## Public methods ### clear Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public void clear () ``` Reset the transformation to a state that leaves the object being animated in an unmodified state. The transformation type is[TYPE_BOTH](https://developer.android.com/reference/android/view/animation/Transformation#TYPE_BOTH)by default.
### compose Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public void compose (Transformation t) ``` Apply this Transformation to an existing Transformation, e.g. apply a scale effect to something that has already been rotated.
### getAlpha Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public float getAlpha () ```

| Returns || |---------|-----------------------------------| | `float` | The degree of transparency
| ### getMatrix Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public Matrix getMatrix () ```

| Returns || |---------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------| | [Matrix](https://developer.android.com/reference/android/graphics/Matrix) | The 3x3 Matrix representing the transformation to apply to the coordinates of the object being animated
| ### getTransformationType Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public int getTransformationType () ``` Indicates the nature of this transformation.
| Returns || |-------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `int` | [TYPE_ALPHA](https://developer.android.com/reference/android/view/animation/Transformation#TYPE_ALPHA),[TYPE_MATRIX](https://developer.android.com/reference/android/view/animation/Transformation#TYPE_MATRIX),[TYPE_BOTH](https://developer.android.com/reference/android/view/animation/Transformation#TYPE_BOTH)or[TYPE_IDENTITY](https://developer.android.com/reference/android/view/animation/Transformation#TYPE_IDENTITY).
| ### set Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public void set (Transformation t) ``` Clones the specified transformation.
| Parameters || |-----|-------------------------------------------------------| | `t` | `Transformation`: The transformation to clone.
| ### setAlpha Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public void setAlpha (float alpha) ``` 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](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public void setTransformationType (int transformationType) ``` Sets the transformation type.
| Parameters || |----------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `transformationType` | `int`: One of[TYPE_ALPHA](https://developer.android.com/reference/android/view/animation/Transformation#TYPE_ALPHA),[TYPE_MATRIX](https://developer.android.com/reference/android/view/animation/Transformation#TYPE_MATRIX),[TYPE_BOTH](https://developer.android.com/reference/android/view/animation/Transformation#TYPE_BOTH)or[TYPE_IDENTITY](https://developer.android.com/reference/android/view/animation/Transformation#TYPE_IDENTITY).
| ### toShortString Added in[API level 3](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public String toShortString () ``` Return a string representation of the transformation in a compact form.
| Returns || |--------------------------------------------------------------------|--------| | [String](https://developer.android.com/reference/java/lang/String) |
| ### toString Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public String toString () ``` Returns a string representation of the object.
| Returns || |--------------------------------------------------------------------|-----------------------------------------------| | [String](https://developer.android.com/reference/java/lang/String) | a string representation of the object.
|