Android
android.view.animation
public class

android.view.animation.TranslateAnimation

java.lang.Object
android.view.animation.Animation
android.view.animation.TranslateAnimation

An animation that controls the position of an object. See the full package description for details and sample code.

Summary

XML Attributes inherited from class android.view.animation.Animation
Constants inherited from class android.view.animation.Animation

Public Constructors

            TranslateAnimation(Context context, AttributeSet attrs)
Constructor used whan an ScaleAnimation is loaded from a resource.
            TranslateAnimation(float fromXDelta, float toXDelta, float fromYDelta, float toYDelta)
Constructor to use when building a ScaleAnimation from code
            TranslateAnimation(int fromXType, float fromXValue, int toXType, float toXValue, int fromYType, float fromYValue, int toYType, float toYValue)
Constructor to use when building a ScaleAnimation from code

Public Methods

          void  initialize(int width, int height, int parentWidth, int parentHeight)
Initialize this animation with the dimensions of the object being animated as well as the objects parents.

Protected Methods

          void  applyTransformation(float interpolatedTime, Transformation t)
Helper for getTransformation.
Methods inherited from class android.view.animation.Animation
Methods inherited from class java.lang.Object

Details

Public Constructors

public TranslateAnimation(Context context, AttributeSet attrs)

Constructor used whan an ScaleAnimation is loaded from a resource.

Parameters

context Application context to use
attrs Attribute set from which to read values

public TranslateAnimation(float fromXDelta, float toXDelta, float fromYDelta, float toYDelta)

Constructor to use when building a ScaleAnimation from code

Parameters

fromXDelta Change in X coordinate to apply at the start of the animation
toXDelta Change in X coordinate to apply at the end of the animation
fromYDelta Change in Y coordinate to apply at the start of the animation
toYDelta Change in Y coordinate to apply at the end of the animation

public TranslateAnimation(int fromXType, float fromXValue, int toXType, float toXValue, int fromYType, float fromYValue, int toYType, float toYValue)

Constructor to use when building a ScaleAnimation from code

Parameters

fromXType Specifies how fromXValue should be interpreted. One of Animation.ABSOLUTE, Animation.RELATIVE_TO_SELF, or Animation.RELATIVE_TO_PARENT.
fromXValue Change in X coordinate to apply at the start of the animation. This value can either be an absolute number if fromXType is ABSOLUTE, or a percentage (where 1.0 is 100%) otherwise.
toXType Specifies how toXValue should be interpreted. One of Animation.ABSOLUTE, Animation.RELATIVE_TO_SELF, or Animation.RELATIVE_TO_PARENT.
toXValue Change in X coordinate to apply at the end of the animation. This value can either be an absolute number if toXType is ABSOLUTE, or a percentage (where 1.0 is 100%) otherwise.
fromYType Specifies how fromYValue should be interpreted. One of Animation.ABSOLUTE, Animation.RELATIVE_TO_SELF, or Animation.RELATIVE_TO_PARENT.
fromYValue Change in Y coordinate to apply at the start of the animation. This value can either be an absolute number if fromYType is ABSOLUTE, or a percentage (where 1.0 is 100%) otherwise.
toYType Specifies how toYValue should be interpreted. One of Animation.ABSOLUTE, Animation.RELATIVE_TO_SELF, or Animation.RELATIVE_TO_PARENT.
toYValue Change in Y coordinate to apply at the end of the animation. This value can either be an absolute number if toYType is ABSOLUTE, or a percentage (where 1.0 is 100%) otherwise.

Public Methods

public void initialize(int width, int height, int parentWidth, int parentHeight)

Initialize this animation with the dimensions of the object being animated as well as the objects parents. (This is to support animation sizes being specifed relative to these dimensions.)

Objects that interpret a Animations should call this method when the sizes of the object being animated and its parent are known, and before calling getTransformation(long, Transformation).

Parameters

width Width of the object being animated
height Height of the object being animated
parentWidth Width of the animated object's parent
parentHeight Height of the animated object's parent

Protected Methods

protected void applyTransformation(float interpolatedTime, Transformation t)

Helper for getTransformation. Subclasses should implement this to apply their transforms given an interpolation value. Implementations of this method should always replace the specified Transformation or document they are doing otherwise.

Parameters

interpolatedTime The value of the normalized time (0.0 to 1.0) after it has been run through the interpolation function.
t The Transofrmation object to fill in with the current transforms.
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