1 /*
2  * Copyright (C) 2014 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 com.android.internal.view.animation;
18 
19 import java.lang.annotation.ElementType;
20 import java.lang.annotation.Retention;
21 import java.lang.annotation.RetentionPolicy;
22 import java.lang.annotation.Target;
23 
24 /**
25  * This is a class annotation that signals that it is safe to create
26  * a native interpolator counterpart via {@link NativeInterpolatorFactory}
27  *
28  * The idea here is to prevent subclasses of interpolators from being treated as a
29  * NativeInterpolatorFactory, and instead have them fall back to the LUT & LERP
30  * method like a custom interpolator.
31  *
32  * @hide
33  */
34 @Retention(RetentionPolicy.RUNTIME)
35 @Target({ElementType.TYPE})
36 public @interface HasNativeInterpolator {
37 }
38