| /* |
| * Copyright 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.example.android.system.runtimepermissions; |
| |
| import android.app.Activity; |
| import android.content.pm.PackageManager; |
| import android.os.Build; |
| |
| /** |
| * Utility class that wraps access to the runtime permissions API in M and provides basic helper |
| * methods. |
| */ |
| public abstract class PermissionUtil { |
| |
| /** |
| * Check that all given permissions have been granted by verifying that each entry in the |
| * given array is of the value {@link PackageManager#PERMISSION_GRANTED}. |
| * |
| * @see Activity#onRequestPermissionsResult(int, String[], int[]) |
| */ |
| public static boolean verifyPermissions(int[] grantResults) { |
| // Verify that each required permission has been granted, otherwise return false. |
| for (int result : grantResults) { |
| if (result != PackageManager.PERMISSION_GRANTED) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| /** |
| * Returns true if the Activity has access to all given permissions. |
| * Always returns true on platforms below M. |
| * |
| * @see Activity#checkSelfPermission(String) |
| */ |
| public static boolean hasSelfPermission(Activity activity, String[] permissions) { |
| // Below Android M all permissions are granted at install time and are already available. |
| if (!isMNC()) { |
| return true; |
| } |
| |
| // Verify that all required permissions have been granted |
| for (String permission : permissions) { |
| if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| /** |
| * Returns true if the Activity has access to a given permission. |
| * Always returns true on platforms below M. |
| * |
| * @see Activity#checkSelfPermission(String) |
| */ |
| public static boolean hasSelfPermission(Activity activity, String permission) { |
| // Below Android M all permissions are granted at install time and are already available. |
| if (!isMNC()) { |
| return true; |
| } |
| |
| return activity.checkSelfPermission(permission) == PackageManager.PERMISSION_GRANTED; |
| } |
| |
| public static boolean isMNC() { |
| return Build.VERSION.SDK_INT >= Build.VERSION_CODES.M; |
| } |
| } |