java.lang.Object | ||
↳ | android.view.animation.Animation | |
↳ | android.view.animation.AlphaAnimation |
An animation that controls the alpha level of an object.
Useful for fading things in and out. This animation ends up
changing the alpha property of a
Transformation
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Inherited XML Attributes
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From class
android.view.animation.Animation
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Inherited Constants
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From class
android.view.animation.Animation
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Public Constructors | |||||||||||
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Constructor used when an AlphaAnimation is loaded from a resource.
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Constructor to use when building an AlphaAnimation from code
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Public Methods | |||||||||||
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Indicates whether or not this animation will affect the bounds of the animated view. |
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Indicates whether or not this animation will affect the transformation matrix. |
Protected Methods | |||||||||||
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Changes the alpha property of the supplied
Transformation
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Inherited Methods
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From class
android.view.animation.Animation
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From class
java.lang.Object
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Constructor used when an AlphaAnimation is loaded from a resource.
context | Application context to use |
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attrs | Attribute set from which to read values |
Constructor to use when building an AlphaAnimation from code
fromAlpha | Starting alpha value for the animation, where 1.0 means fully opaque and 0.0 means fully transparent. |
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toAlpha | Ending alpha value for the animation. |
Indicates whether or not this animation will affect the bounds of the animated view. For instance, a fade animation will not affect the bounds whereas a 200% scale animation will.
Indicates whether or not this animation will affect the transformation matrix. For instance, a fade animation will not affect the matrix whereas a scale animation will.
Changes the alpha property of the supplied
Transformation
interpolatedTime | The value of the normalized time (0.0 to 1.0) after it has been run through the interpolation function. |
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t | The Transformation object to fill in with the current transforms. |