public class PathKeyframes extends Object implements Keyframes
PathKeyframes is optimized to reduce the number of objects created when there are many keyframes for a curve.
Typically, the returned type is a PointF, but the individual components can be extracted as either an IntKeyframes or FloatKeyframes.
Keyframes.FloatKeyframes, Keyframes.IntKeyframes
Constructor and Description |
---|
PathKeyframes(Path path) |
PathKeyframes(Path path,
float error) |
Modifier and Type | Method and Description |
---|---|
Keyframes |
clone()
Creates and returns a copy of this object.
|
Keyframes.FloatKeyframes |
createXFloatKeyframes()
Returns a FloatKeyframes for the X component of the Path.
|
Keyframes.IntKeyframes |
createXIntKeyframes()
Returns an IntKeyframes for the X component of the Path.
|
Keyframes.FloatKeyframes |
createYFloatKeyframes()
Returns a FloatKeyframes for the Y component of the Path.
|
Keyframes.IntKeyframes |
createYIntKeyframes()
Returns an IntKeyframeSet for the Y component of the Path.
|
ArrayList<Keyframe> |
getKeyframes() |
Class |
getType() |
Object |
getValue(float fraction)
Gets the animated value, given the elapsed fraction of the animation (interpolated by the
animation's interpolator) and the evaluator used to calculate in-between values.
|
void |
invalidateCache()
If subclass has variables that it calculates based on the Keyframes, it should reset them
when this method is called because Keyframe contents might have changed.
|
void |
setEvaluator(TypeEvaluator evaluator)
Sets the TypeEvaluator to be used when calculating animated values.
|
public PathKeyframes(Path path)
public PathKeyframes(Path path, float error)
public ArrayList<Keyframe> getKeyframes()
getKeyframes
in interface Keyframes
public Object getValue(float fraction)
Keyframes
public void invalidateCache()
Keyframes
invalidateCache
in interface Keyframes
public void setEvaluator(TypeEvaluator evaluator)
Keyframes
setEvaluator
in interface Keyframes
evaluator
- The TypeEvaluator to be used to calculate animated values.public Class getType()
public Keyframes clone()
Object
x
, the expression:
will be true, and that the expression:x.clone() != x
will bex.clone().getClass() == x.getClass()
true
, but these are not absolute requirements.
While it is typically the case that:
will bex.clone().equals(x)
true
, this is not an absolute requirement.
By convention, the returned object should be obtained by calling
super.clone
. If a class and all of its superclasses (except
Object
) obey this convention, it will be the case that
x.clone().getClass() == x.getClass()
.
By convention, the object returned by this method should be independent
of this object (which is being cloned). To achieve this independence,
it may be necessary to modify one or more fields of the object returned
by super.clone
before returning it. Typically, this means
copying any mutable objects that comprise the internal "deep structure"
of the object being cloned and replacing the references to these
objects with references to the copies. If a class contains only
primitive fields or references to immutable objects, then it is usually
the case that no fields in the object returned by super.clone
need to be modified.
The method clone
for class Object
performs a
specific cloning operation. First, if the class of this object does
not implement the interface Cloneable
, then a
CloneNotSupportedException
is thrown. Note that all arrays
are considered to implement the interface Cloneable
and that
the return type of the clone
method of an array type T[]
is T[]
where T is any reference or primitive type.
Otherwise, this method creates a new instance of the class of this
object and initializes all its fields with exactly the contents of
the corresponding fields of this object, as if by assignment; the
contents of the fields are not themselves cloned. Thus, this method
performs a "shallow copy" of this object, not a "deep copy" operation.
The class Object
does not itself implement the interface
Cloneable
, so calling the clone
method on an object
whose class is Object
will result in throwing an
exception at run time.
public Keyframes.FloatKeyframes createXFloatKeyframes()
public Keyframes.FloatKeyframes createYFloatKeyframes()
public Keyframes.IntKeyframes createXIntKeyframes()
public Keyframes.IntKeyframes createYIntKeyframes()