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      1 /*
      2  * Copyright (C) 2016 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.view;
     17 
     18 import android.animation.TimeInterpolator;
     19 import com.android.internal.view.animation.FallbackLUTInterpolator;
     20 import com.android.internal.view.animation.NativeInterpolatorFactory;
     21 import com.android.internal.view.animation.NativeInterpolatorFactoryHelper;
     22 
     23 /**
     24  * This is a helper class to get access to methods and fields needed for RenderNodeAnimatorSet
     25  * that are internal or package private to android.view package.
     26  *
     27  * @hide
     28  */
     29 public class RenderNodeAnimatorSetHelper {
     30 
     31     public static RenderNode getTarget(DisplayListCanvas recordingCanvas) {
     32         return recordingCanvas.mNode;
     33     }
     34 
     35     public static long createNativeInterpolator(TimeInterpolator interpolator, long
     36             duration) {
     37         if (interpolator == null) {
     38             // create LinearInterpolator
     39             return NativeInterpolatorFactoryHelper.createLinearInterpolator();
     40         } else if (RenderNodeAnimator.isNativeInterpolator(interpolator)) {
     41             return ((NativeInterpolatorFactory)interpolator).createNativeInterpolator();
     42         } else {
     43             return FallbackLUTInterpolator.createNativeInterpolator(interpolator, duration);
     44         }
     45     }
     46 
     47 }
     48