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 
17 package com.android.systemui;
18 
19 import android.view.animation.AccelerateDecelerateInterpolator;
20 import android.view.animation.AccelerateInterpolator;
21 import android.view.animation.BounceInterpolator;
22 import android.view.animation.DecelerateInterpolator;
23 import android.view.animation.Interpolator;
24 import android.view.animation.LinearInterpolator;
25 import android.view.animation.PathInterpolator;
26 
27 import com.android.systemui.statusbar.stack.HeadsUpAppearInterpolator;
28 
29 /**
30  * Utility class to receive interpolators from
31  */
32 public class Interpolators {
33     public static final Interpolator FAST_OUT_SLOW_IN = new PathInterpolator(0.4f, 0f, 0.2f, 1f);
34     public static final Interpolator FAST_OUT_LINEAR_IN = new PathInterpolator(0.4f, 0f, 1f, 1f);
35     public static final Interpolator LINEAR_OUT_SLOW_IN = new PathInterpolator(0f, 0f, 0.2f, 1f);
36     public static final Interpolator ALPHA_IN = new PathInterpolator(0.4f, 0f, 1f, 1f);
37     public static final Interpolator ALPHA_OUT = new PathInterpolator(0f, 0f, 0.8f, 1f);
38     public static final Interpolator LINEAR = new LinearInterpolator();
39     public static final Interpolator ACCELERATE = new AccelerateInterpolator();
40     public static final Interpolator ACCELERATE_DECELERATE = new AccelerateDecelerateInterpolator();
41     public static final Interpolator DECELERATE_QUINT = new DecelerateInterpolator(2.5f);
42     public static final Interpolator CUSTOM_40_40 = new PathInterpolator(0.4f, 0f, 0.6f, 1f);
43     public static final Interpolator HEADS_UP_APPEAR = new HeadsUpAppearInterpolator();
44     public static final Interpolator ICON_OVERSHOT = new PathInterpolator(0.4f, 0f, 0.2f, 1.4f);
45     public static final Interpolator PANEL_CLOSE_ACCELERATED
46             = new PathInterpolator(0.3f, 0, 0.5f, 1);
47     public static final Interpolator BOUNCE = new BounceInterpolator();
48 
49     /**
50      * Interpolator to be used when animating a move based on a click. Pair with enough duration.
51      */
52     public static final Interpolator TOUCH_RESPONSE =
53             new PathInterpolator(0.3f, 0f, 0.1f, 1f);
54 }
55