1 /*
2  * Copyright (C) 2019 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 
17 package androidx.constraintlayout.motion.widget;
18 
19 import android.view.animation.Interpolator;
20 
21 /**
22  * Defines an interpolator that can return velocity
23  */
24 public abstract class MotionInterpolator implements Interpolator {
25 
26     /**
27      * Gets the interpolated given the original interpolation
28      * @param v
29      * @return
30      */
31     @Override
getInterpolation(float v)32     public abstract float getInterpolation(float v);
33 
34     /**
35      * Gets the velocity at the last interpolated point
36      * @return
37      */
getVelocity()38     public abstract float getVelocity();
39 }
40