1 /*
2  * Copyright 2013 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.example.android.interactivechart;
18 
19 import android.annotation.TargetApi;
20 import android.os.Build;
21 import android.widget.OverScroller;
22 
23 /**
24  * A utility class for using {@link android.widget.OverScroller} in a backward-compatible fashion.
25  */
26 public class OverScrollerCompat {
27     /**
28      * Disallow instantiation.
29      */
OverScrollerCompat()30     private OverScrollerCompat() {
31     }
32 
33     /**
34      * @see android.view.ScaleGestureDetector#getCurrentSpanY()
35      */
36     @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
getCurrVelocity(OverScroller overScroller)37     public static float getCurrVelocity(OverScroller overScroller) {
38         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
39             return overScroller.getCurrVelocity();
40         } else {
41             return 0;
42         }
43     }
44 }
45