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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package android.support.car.ui;
     17 
     18 
     19 import android.animation.TimeInterpolator;
     20 import android.support.annotation.NonNull;
     21 
     22 /**
     23  * Interpolator that can provide custom interpolations for forward and reverse animations
     24  */
     25 public class ReversibleInterpolator {
     26 
     27     private final TimeInterpolator mForwardInterpolator;
     28     private final TimeInterpolator mReverseInterpolator;
     29 
     30     public ReversibleInterpolator(@NonNull TimeInterpolator forwardInterpolator,
     31             @NonNull TimeInterpolator reverseInterpolator) {
     32         mForwardInterpolator = forwardInterpolator;
     33         mReverseInterpolator = reverseInterpolator;
     34     }
     35 
     36     public float getForwardInterpolation(float input) {
     37         return mForwardInterpolator.getInterpolation(input);
     38     }
     39 
     40     public float getReverseInterpolation(float input) {
     41         return mReverseInterpolator.getInterpolation(input);
     42     }
     43 }
     44