1 /*
2 * Copyright 2015 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.system.runtimepermissions;
18 
19 import android.app.Activity;
20 import android.content.pm.PackageManager;
21 
22 /**
23  * Utility class that wraps access to the runtime permissions API in M and provides basic helper
24  * methods.
25  */
26 public abstract class PermissionUtil {
27 
28     /**
29      * Check that all given permissions have been granted by verifying that each entry in the
30      * given array is of the value {@link PackageManager#PERMISSION_GRANTED}.
31      *
32      * @see Activity#onRequestPermissionsResult(int, String[], int[])
33      */
verifyPermissions(int[] grantResults)34     public static boolean verifyPermissions(int[] grantResults) {
35         // At least one result must be checked.
36         if(grantResults.length < 1){
37             return false;
38         }
39 
40         // Verify that each required permission has been granted, otherwise return false.
41         for (int result : grantResults) {
42             if (result != PackageManager.PERMISSION_GRANTED) {
43                 return false;
44             }
45         }
46         return true;
47     }
48 
49 }
50