1 /* 2 * Copyright (C) 2014 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.android.launcher3.compat; 18 19 import android.content.Context; 20 import android.os.UserHandle; 21 22 import com.android.launcher3.Utilities; 23 24 import java.util.List; 25 26 public abstract class UserManagerCompat { 27 protected UserManagerCompat() { 28 } 29 30 private static final Object sInstanceLock = new Object(); 31 private static UserManagerCompat sInstance; 32 33 public static UserManagerCompat getInstance(Context context) { 34 synchronized (sInstanceLock) { 35 if (sInstance == null) { 36 if (Utilities.ATLEAST_NOUGAT_MR1) { 37 sInstance = new UserManagerCompatVNMr1(context.getApplicationContext()); 38 } else if (Utilities.ATLEAST_NOUGAT) { 39 sInstance = new UserManagerCompatVN(context.getApplicationContext()); 40 } else if (Utilities.ATLEAST_MARSHMALLOW) { 41 sInstance = new UserManagerCompatVM(context.getApplicationContext()); 42 } else { 43 sInstance = new UserManagerCompatVL(context.getApplicationContext()); 44 } 45 } 46 return sInstance; 47 } 48 } 49 50 /** 51 * Creates a cache for users. 52 */ 53 public abstract void enableAndResetCache(); 54 55 public abstract List<UserHandle> getUserProfiles(); 56 public abstract long getSerialNumberForUser(UserHandle user); 57 public abstract UserHandle getUserForSerialNumber(long serialNumber); 58 public abstract CharSequence getBadgedLabelForUser(CharSequence label, UserHandle user); 59 public abstract long getUserCreationTime(UserHandle user); 60 public abstract boolean isQuietModeEnabled(UserHandle user); 61 public abstract boolean isUserUnlocked(UserHandle user); 62 63 public abstract boolean isDemoUser(); 64 } 65