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 android.support.v4.os;
18 
19 import android.os.Build.VERSION;
20 
21 /**
22  * This class contains additional platform version checking methods for targeting pre-release
23  * versions of Android.
24  */
25 public class BuildCompat {
BuildCompat()26     private BuildCompat() {
27     }
28 
29     /**
30      * Checks if the device is running on the Android N release or newer.
31      *
32      * @return {@code true} if N APIs are available for use
33      * @deprecated Android N is a finalized release and this method is no longer necessary. It will
34      *             be removed in a future release of the Support Library. Instead, use
35      *             {@code Build.SDK_INT >= Build.VERSION_CODES#N}.
36      */
37     @Deprecated
isAtLeastN()38     public static boolean isAtLeastN() {
39         return VERSION.SDK_INT >= 24;
40     }
41 
42     /**
43      * Checks if the device is running on the Android N MR1 release or newer.
44      *
45      * @return {@code true} if N MR1 APIs are available for use
46      * @deprecated Android N MR1 is a finalized release and this method is no longer necessary. It
47      *             will be removed in a future release of the Support Library. Instead, use
48      *             {@code Build.SDK_INT >= Build.VERSION_CODES#N_MR1}.
49      */
50     @Deprecated
isAtLeastNMR1()51     public static boolean isAtLeastNMR1() {
52         return VERSION.SDK_INT >= 25;
53     }
54 
55     /**
56      * Checks if the device is running on a pre-release version of Android O or newer.
57      * <p>
58      * @return {@code true} if O APIs are available for use, {@code false} otherwise
59      * @deprecated Android O is a finalized release and this method is no longer necessary. It will
60      *             be removed in a future release of the Support Library. Instead use
61      *             {@code Build.SDK_INT >= Build.VERSION_CODES#O}.
62      */
isAtLeastO()63     public static boolean isAtLeastO() {
64         return VERSION.SDK_INT >= 26;
65     }
66 
67     /**
68      * Checks if the device is running on a pre-release version of Android O MR1 or newer.
69      * <p>
70      * <strong>Note:</strong> This method will return {@code false} on devices running release
71      * versions of Android. When Android O MR1 is finalized for release, this method will be
72      * deprecated and all calls should be replaced with
73      * {@code Build.SDK_INT >= Build.VERSION_CODES#O_MR1}.
74      *
75      * @return {@code true} if O MR1 APIs are available for use, {@code false} otherwise
76      */
isAtLeastOMR1()77     public static boolean isAtLeastOMR1() {
78         return VERSION.CODENAME.startsWith("OMR")
79                 || isAtLeastP();
80     }
81 
82     /**
83      * Checks if the device is running on a pre-release version of Android P or newer.
84      * <p>
85      * <strong>Note:</strong> This method will return {@code false} on devices running release
86      * versions of Android. When Android P is finalized for release, this method will be deprecated
87      * and all calls should be replaced with {@code Build.SDK_INT >= Build.VERSION_CODES#P}.
88      *
89      * @return {@code true} if P APIs are available for use, {@code false} otherwise
90      */
isAtLeastP()91     public static boolean isAtLeastP() {
92         return VERSION.CODENAME.equals("P");
93     }
94 }
95