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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.dialer.compat;
import android.content.Context;
import android.os.Process;
import android.os.UserHandle;
import android.os.UserManager;
import com.android.contacts.common.compat.CompatUtils;
/**
* Compatibility class for {@link UserManager}.
*/
public class UserManagerCompat {
/**
* A user id constant to indicate the "system" user of the device. Copied from
* {@link UserHandle}.
*/
private static final int USER_SYSTEM = 0;
/**
* Range of uids allocated for a user.
*/
private static final int PER_USER_RANGE = 100000;
/**
* Used to check if this process is running under the system user. The system user is the
* initial user that is implicitly created on first boot and hosts most of the system services.
*
* @return whether this process is running under the system user.
*/
public static boolean isSystemUser(UserManager userManager) {
if (CompatUtils.isMarshmallowCompatible()) {
return userManager.isSystemUser();
}
// Adapted from {@link UserManager} and {@link UserHandle}.
return (Process.myUid() / PER_USER_RANGE) == USER_SYSTEM;
}
/**
* Return whether the calling user is running in an "unlocked" state. A user
* is unlocked only after they've entered their credentials (such as a lock
* pattern or PIN), and credential-encrypted private app data storage is
* available.
*
* TODO b/26688153
*
* @param context the current context
* @return {@code true} if the user is unlocked, {@code false} otherwise
* @throws NullPointerException if context is null
*/
public static boolean isUserUnlocked(Context context) {
if (CompatUtils.isNCompatible()) {
return UserManagerSdkCompat.isUserUnlocked(context);
}
return true;
}
}
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