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 ReversibleInterpolator(@onNull TimeInterpolator forwardInterpolator, @NonNull TimeInterpolator reverseInterpolator)30 public ReversibleInterpolator(@NonNull TimeInterpolator forwardInterpolator, 31 @NonNull TimeInterpolator reverseInterpolator) { 32 mForwardInterpolator = forwardInterpolator; 33 mReverseInterpolator = reverseInterpolator; 34 } 35 getForwardInterpolation(float input)36 public float getForwardInterpolation(float input) { 37 return mForwardInterpolator.getInterpolation(input); 38 } 39 getReverseInterpolation(float input)40 public float getReverseInterpolation(float input) { 41 return mReverseInterpolator.getInterpolation(input); 42 } 43 } 44