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/*
* Copyright (C) 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.android.contacts.common.util;
import android.Manifest.permission;
import android.content.Context;
import android.content.pm.PackageManager;
/**
* Utility class to help with runtime permissions.
*/
public class PermissionsUtil {
// Each permission in this list is a cherry-picked permission from a particular permission
// group. Granting a permission group enables access to all permissions in that group so we
// only need to check a single permission in each group.
// Note: This assumes that the app has correctly requested for all the relevant permissions
// in its Manifest file.
public static final String PHONE = permission.CALL_PHONE;
public static final String CONTACTS = permission.READ_CONTACTS;
public static final String LOCATION = permission.ACCESS_FINE_LOCATION;
private static Boolean sHasPhonePermissions;
private static Boolean sHasContactsPermissions;
private static Boolean sHasLocationPermissions;
public static boolean hasPhonePermissions(Context context) {
if (sHasPhonePermissions == null) {
sHasPhonePermissions = hasPermission(context, PHONE);
}
return sHasPhonePermissions;
}
public static boolean hasContactsPermissions(Context context) {
if (sHasContactsPermissions == null) {
sHasContactsPermissions = hasPermission(context, CONTACTS);
}
return sHasContactsPermissions;
}
public static boolean hasLocationPermissions(Context context) {
if (sHasLocationPermissions == null) {
sHasLocationPermissions = hasPermission(context, LOCATION);
}
return sHasLocationPermissions;
}
/**
* To be called during various activity lifecycle events to update the cached versions of the
* permissions.
*
* @param context A valid context.
*/
public static void updateCachedPermissions(Context context) {
sHasPhonePermissions = hasPermission(context, PHONE);
sHasContactsPermissions = hasPermission(context, CONTACTS);
sHasLocationPermissions = hasPermission(context, LOCATION);
}
public static boolean hasPermission(Context context, String permission) {
return context.checkSelfPermission(permission) == PackageManager.PERMISSION_GRANTED;
}
}
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