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 android.graphics.RecordingCanvas;
20 import android.graphics.RenderNode;
21 
22 import com.android.internal.view.animation.FallbackLUTInterpolator;
23 import com.android.internal.view.animation.NativeInterpolatorFactory;
24 import com.android.internal.view.animation.NativeInterpolatorFactoryHelper;
25 
26 /**
27  * This is a helper class to get access to methods and fields needed for RenderNodeAnimatorSet
28  * that are internal or package private to android.view package.
29  *
30  * @hide
31  */
32 public class RenderNodeAnimatorSetHelper {
33 
34     /** checkstyle @hide */
getTarget(RecordingCanvas recordingCanvas)35     public static RenderNode getTarget(RecordingCanvas recordingCanvas) {
36         return recordingCanvas.mNode;
37     }
38 
39     /** checkstyle @hide */
createNativeInterpolator(TimeInterpolator interpolator, long duration)40     public static long createNativeInterpolator(TimeInterpolator interpolator, long
41             duration) {
42         if (interpolator == null) {
43             // create LinearInterpolator
44             return NativeInterpolatorFactoryHelper.createLinearInterpolator();
45         } else if (RenderNodeAnimator.isNativeInterpolator(interpolator)) {
46             return ((NativeInterpolatorFactory)interpolator).createNativeInterpolator();
47         } else {
48             return FallbackLUTInterpolator.createNativeInterpolator(interpolator, duration);
49         }
50     }
51 
52 }
53