RectEvaluator
public class RectEvaluator implements TypeEvaluator
This evaluator can be used to perform type interpolation between Rect values.
Summary
Public constructors |
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Construct a RectEvaluator that returns a new Rect on every evaluate call. |
RectEvaluator(@NonNull Rect reuseRect)Constructs a RectEvaluator that modifies and returns |
Public methods |
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@NonNull Rect |
This function returns the result of linearly interpolating the start and end Rect values, with |
Public constructors
RectEvaluator
public RectEvaluator()
Construct a RectEvaluator that returns a new Rect on every evaluate call. To avoid creating an object for each evaluate call, RectEvaluator should be used whenever possible.
RectEvaluator
public RectEvaluator(@NonNull Rect reuseRect)
Constructs a RectEvaluator that modifies and returns reuseRect in evaluate calls. The value returned from evaluate should not be cached because it will change over time as the object is reused on each call.
Public methods
evaluate
public @NonNull Rect evaluate(float fraction, @NonNull Rect startValue, @NonNull Rect endValue)
This function returns the result of linearly interpolating the start and end Rect values, with fraction representing the proportion between the start and end values. The calculation is a simple parametric calculation on each of the separate components in the Rect objects (left, top, right, and bottom).
If RectEvaluator was used to construct this RectEvaluator, the object returned will be the reuseRect passed into the constructor.