Class Overview
This evaluator can be used to perform type interpolation between float values.
Summary
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Float
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evaluate(float fraction, Number startValue, Number endValue)
This function returns the result of linearly interpolating the start and end values, with
fraction representing the proportion between the start and end values.
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[Expand]
Inherited Methods |
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From class
java.lang.Object
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Object
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clone()
Creates and returns a copy of this Object.
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boolean
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equals(Object o)
Compares this instance with the specified object and indicates if they
are equal.
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void
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finalize()
Invoked when the garbage collector has detected that this instance is no longer reachable.
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final
Class<?>
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getClass()
Returns the unique instance of Class that represents this
object's class.
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int
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hashCode()
Returns an integer hash code for this object.
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final
void
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notify()
Causes a thread which is waiting on this object's monitor (by means of
calling one of the wait() methods) to be woken up.
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final
void
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notifyAll()
Causes all threads which are waiting on this object's monitor (by means
of calling one of the wait() methods) to be woken up.
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String
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toString()
Returns a string containing a concise, human-readable description of this
object.
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final
void
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wait()
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.
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final
void
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wait(long millis, int nanos)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
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final
void
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wait(long millis)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
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From interface
android.animation.TypeEvaluator
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abstract
Number
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evaluate(float fraction, Number startValue, Number endValue)
This function returns the result of linearly interpolating the start and end values, with
fraction representing the proportion between the start and end values.
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Public Constructors
Public Methods
public
Float
evaluate
(float fraction, Number startValue, Number endValue)
This function returns the result of linearly interpolating the start and end values, with
fraction representing the proportion between the start and end values. The
calculation is a simple parametric calculation: result = x0 + t * (v1 - v0),
where x0 is startValue, x1 is endValue,
and t is fraction.
Parameters
| fraction
| The fraction from the starting to the ending values |
| startValue
| The start value; should be of type float or
Float |
| endValue
| The end value; should be of type float or Float |
Returns
- A linear interpolation between the start and end values, given the
fraction parameter.
