1 /*
2  * Copyright (C) 2021 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 com.android.launcher3.util;
17 
18 import android.content.Context;
19 import android.widget.EdgeEffect;
20 
21 import com.android.launcher3.Utilities;
22 
23 /**
24  * Extension of {@link EdgeEffect} to allow backwards compatibility
25  */
26 public class EdgeEffectCompat extends EdgeEffect {
27 
EdgeEffectCompat(Context context)28     public EdgeEffectCompat(Context context) {
29         super(context);
30     }
31 
32     @Override
getDistance()33     public float getDistance() {
34         return Utilities.ATLEAST_S ? super.getDistance() : 0;
35     }
36 
37     @Override
onPullDistance(float deltaDistance, float displacement)38     public float onPullDistance(float deltaDistance, float displacement) {
39         if (Utilities.ATLEAST_S) {
40             return super.onPullDistance(deltaDistance, displacement);
41         } else {
42             onPull(deltaDistance, displacement);
43             return deltaDistance;
44         }
45     }
46 }
47