Java tutorial
/* * 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 android.support.v4.os; import android.content.Context; /** * Helper for accessing features in {@link android.os.UserManager} * introduced after API level 4 in a backwards compatible fashion. */ public class UserManagerCompat { private UserManagerCompat() { } /** * Return whether the calling user is running in a "locked" 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. * * @removed * @deprecated Removed. Do not use. */ @Deprecated public static boolean isUserRunningAndLocked(Context context) { return !isUserUnlocked(context); } /** * 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. * * @removed * @deprecated Removed. Do not use. */ @Deprecated public static boolean isUserRunningAndUnlocked(Context context) { return isUserUnlocked(context); } /** * 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. */ public static boolean isUserUnlocked(Context context) { if (BuildCompat.isAtLeastN()) { return UserManagerCompatApi24.isUserUnlocked(context); } else { return true; } } }