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.view.ScaleGestureDetector;
22 
23 /**
24  * A utility class for using {@link android.view.ScaleGestureDetector} in a backward-compatible
25  * fashion.
26  */
27 public class ScaleGestureDetectorCompat {
28     /**
29      * Disallow instantiation.
30      */
ScaleGestureDetectorCompat()31     private ScaleGestureDetectorCompat() {
32     }
33 
34     /**
35      * @see android.view.ScaleGestureDetector#getCurrentSpanX()
36      */
37     @TargetApi(Build.VERSION_CODES.HONEYCOMB)
getCurrentSpanX(ScaleGestureDetector scaleGestureDetector)38     public static float getCurrentSpanX(ScaleGestureDetector scaleGestureDetector) {
39         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
40             return scaleGestureDetector.getCurrentSpanX();
41         } else {
42             return scaleGestureDetector.getCurrentSpan();
43         }
44     }
45 
46     /**
47      * @see android.view.ScaleGestureDetector#getCurrentSpanY()
48      */
49     @TargetApi(Build.VERSION_CODES.HONEYCOMB)
getCurrentSpanY(ScaleGestureDetector scaleGestureDetector)50     public static float getCurrentSpanY(ScaleGestureDetector scaleGestureDetector) {
51         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
52             return scaleGestureDetector.getCurrentSpanY();
53         } else {
54             return scaleGestureDetector.getCurrentSpan();
55         }
56     }
57 }
58