Added evaluator.

README.md

@@ -175,6 +175,21 @@ Path animations ( Inspiration from http://blog.csdn.net/tianjian4592/article/det
 ```
 
 
+Animations with custom evalutors - such as those available in [AnimationEasingFunctions](https://github.com/daimajia/AnimationEasingFunctions) for more advanced [easing interpolators](https://easings.net/)
+```java
+ViewAnimator.animate(view)
+                .translationY(0f, translateY) // up
+                .startDelay(1000)
+                .duration(150)
+                .interpolator(DecelerateInterpolator())
+                .thenAnimate(view)
+                .translationY(translateY, 0f) // down with a 'boing' effect
+                .evaluator(ElasticEaseOut(500))
+                .duration(500)
+                .onStop { startAnimation() } // restart the animation, by creating it again
+                .start()
+```
+
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viewanimator/src/main/java/com/github/florent37/viewanimator/AnimationBuilder.java

@@ -3,6 +3,7 @@
 import android.animation.Animator;
 import android.animation.ArgbEvaluator;
 import android.animation.ObjectAnimator;
+import android.animation.TypeEvaluator;
 import android.animation.ValueAnimator;
 import android.graphics.Path;
 import android.graphics.PathMeasure;
@@ -247,6 +248,11 @@ public AnimationBuilder interpolator(Interpolator interpolator) {
         return this;
     }
 
+    public AnimationBuilder evaluator(TypeEvaluator evaluator) {
+        viewAnimator.evaluator(evaluator);
+        return this;
+    }
+
     public AnimationBuilder singleInterpolator(Interpolator interpolator) {
         singleInterpolator = interpolator;
         return this;

viewanimator/src/main/java/com/github/florent37/viewanimator/ViewAnimator.java

@@ -2,6 +2,7 @@
 
 import android.animation.Animator;
 import android.animation.AnimatorSet;
+import android.animation.TypeEvaluator;
 import android.animation.ValueAnimator;
 import android.view.View;
 import android.view.ViewTreeObserver;
@@ -30,6 +31,7 @@ public class ViewAnimator {
     private long duration = DEFAULT_DURATION;
     private long startDelay = 0;
     private Interpolator interpolator = null;
+    private TypeEvaluator evaluator = null;
 
     private int repeatCount = 0;
     private int repeatMode = RESTART;
@@ -67,6 +69,7 @@ protected AnimatorSet createAnimatorSet() {
                 ValueAnimator valueAnimator = (ValueAnimator) animator;
                 valueAnimator.setRepeatCount(repeatCount);
                 valueAnimator.setRepeatMode(repeatMode);
+                valueAnimator.setEvaluator(evaluator);
             }
         }
 
@@ -203,4 +206,9 @@ public ViewAnimator interpolator(Interpolator interpolator) {
         return this;
     }
 
+    public ViewAnimator evaluator(TypeEvaluator evaluator) {
+        this.evaluator = evaluator;
+        return this;
+    }
+
 }