1 /* 2 * Copyright (C) 2007 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 android.os; 18 19 /** 20 * Information about the current build, extracted from system properties. 21 */ 22 public class Build { 23 /** Value used for when a build property is unknown. */ 24 public static final String UNKNOWN = "unknown"; 25 26 /** Either a changelist number, or a label like "M4-rc20". */ 27 public static final String ID = getString("ro.build.id"); 28 29 /** A build ID string meant for displaying to the user */ 30 public static final String DISPLAY = getString("ro.build.display.id"); 31 32 /** The name of the overall product. */ 33 public static final String PRODUCT = getString("ro.product.name"); 34 35 /** The name of the industrial design. */ 36 public static final String DEVICE = getString("ro.product.device"); 37 38 /** The name of the underlying board, like "goldfish". */ 39 public static final String BOARD = getString("ro.product.board"); 40 41 /** The name of the instruction set (CPU type + ABI convention) of native code. */ 42 public static final String CPU_ABI = getString("ro.product.cpu.abi"); 43 44 /** The name of the second instruction set (CPU type + ABI convention) of native code. */ 45 public static final String CPU_ABI2 = getString("ro.product.cpu.abi2"); 46 47 /** The manufacturer of the product/hardware. */ 48 public static final String MANUFACTURER = getString("ro.product.manufacturer"); 49 50 /** The brand (e.g., carrier) the software is customized for, if any. */ 51 public static final String BRAND = getString("ro.product.brand"); 52 53 /** The end-user-visible name for the end product. */ 54 public static final String MODEL = getString("ro.product.model"); 55 56 /** The system bootloader version number. */ 57 public static final String BOOTLOADER = getString("ro.bootloader"); 58 59 /** The radio firmware version number. */ 60 public static final String RADIO = getString("gsm.version.baseband"); 61 62 /** The name of the hardware (from the kernel command line or /proc). */ 63 public static final String HARDWARE = getString("ro.hardware"); 64 65 /** A hardware serial number, if available. Alphanumeric only, case-insensitive. */ 66 public static final String SERIAL = getString("ro.serialno"); 67 68 /** Various version strings. */ 69 public static class VERSION { 70 /** 71 * The internal value used by the underlying source control to 72 * represent this build. E.g., a perforce changelist number 73 * or a git hash. 74 */ 75 public static final String INCREMENTAL = getString("ro.build.version.incremental"); 76 77 /** 78 * The user-visible version string. E.g., "1.0" or "3.4b5". 79 */ 80 public static final String RELEASE = getString("ro.build.version.release"); 81 82 /** 83 * The user-visible SDK version of the framework in its raw String 84 * representation; use {@link #SDK_INT} instead. 85 * 86 * @deprecated Use {@link #SDK_INT} to easily get this as an integer. 87 */ 88 @Deprecated 89 public static final String SDK = getString("ro.build.version.sdk"); 90 91 /** 92 * The user-visible SDK version of the framework; its possible 93 * values are defined in {@link Build.VERSION_CODES}. 94 */ 95 public static final int SDK_INT = SystemProperties.getInt( 96 "ro.build.version.sdk", 0); 97 98 /** 99 * The current development codename, or the string "REL" if this is 100 * a release build. 101 */ 102 public static final String CODENAME = getString("ro.build.version.codename"); 103 } 104 105 /** 106 * Enumeration of the currently known SDK version codes. These are the 107 * values that can be found in {@link VERSION#SDK}. Version numbers 108 * increment monotonically with each official platform release. 109 */ 110 public static class VERSION_CODES { 111 /** 112 * Magic version number for a current development build, which has 113 * not yet turned into an official release. 114 */ 115 public static final int CUR_DEVELOPMENT = 10000; 116 117 /** 118 * October 2008: The original, first, version of Android. Yay! 119 */ 120 public static final int BASE = 1; 121 122 /** 123 * February 2009: First Android update, officially called 1.1. 124 */ 125 public static final int BASE_1_1 = 2; 126 127 /** 128 * May 2009: Android 1.5. 129 */ 130 public static final int CUPCAKE = 3; 131 132 /** 133 * September 2009: Android 1.6. 134 * 135 * <p>Applications targeting this or a later release will get these 136 * new changes in behavior:</p> 137 * <ul> 138 * <li> They must explicitly request the 139 * {@link android.Manifest.permission#WRITE_EXTERNAL_STORAGE} permission to be 140 * able to modify the contents of the SD card. (Apps targeting 141 * earlier versions will always request the permission.) 142 * <li> They must explicitly request the 143 * {@link android.Manifest.permission#READ_PHONE_STATE} permission to be 144 * able to be able to retrieve phone state info. (Apps targeting 145 * earlier versions will always request the permission.) 146 * <li> They are assumed to support different screen densities and 147 * sizes. (Apps targeting earlier versions are assumed to only support 148 * medium density normal size screens unless otherwise indicated). 149 * They can still explicitly specify screen support either way with the 150 * supports-screens manifest tag. 151 * </ul> 152 */ 153 public static final int DONUT = 4; 154 155 /** 156 * November 2009: Android 2.0 157 * 158 * <p>Applications targeting this or a later release will get these 159 * new changes in behavior:</p> 160 * <ul> 161 * <li> The {@link android.app.Service#onStartCommand 162 * Service.onStartCommand} function will return the new 163 * {@link android.app.Service#START_STICKY} behavior instead of the 164 * old compatibility {@link android.app.Service#START_STICKY_COMPATIBILITY}. 165 * <li> The {@link android.app.Activity} class will now execute back 166 * key presses on the key up instead of key down, to be able to detect 167 * canceled presses from virtual keys. 168 * <li> The {@link android.widget.TabWidget} class will use a new color scheme 169 * for tabs. In the new scheme, the foreground tab has a medium gray background 170 * the background tabs have a dark gray background. 171 * </ul> 172 */ 173 public static final int ECLAIR = 5; 174 175 /** 176 * December 2009: Android 2.0.1 177 */ 178 public static final int ECLAIR_0_1 = 6; 179 180 /** 181 * January 2010: Android 2.1 182 */ 183 public static final int ECLAIR_MR1 = 7; 184 185 /** 186 * June 2010: Android 2.2 187 */ 188 public static final int FROYO = 8; 189 190 /** 191 * November 2010: Android 2.3 192 */ 193 public static final int GINGERBREAD = 9; 194 195 /** 196 * Newest version of Android, version 2.3.3. 197 */ 198 public static final int GINGERBREAD_MR1 = 10; 199 } 200 201 /** The type of build, like "user" or "eng". */ 202 public static final String TYPE = getString("ro.build.type"); 203 204 /** Comma-separated tags describing the build, like "unsigned,debug". */ 205 public static final String TAGS = getString("ro.build.tags"); 206 207 /** A string that uniquely identifies this build. Do not attempt to parse this value. */ 208 public static final String FINGERPRINT = getString("ro.build.fingerprint"); 209 210 // The following properties only make sense for internal engineering builds. 211 public static final long TIME = getLong("ro.build.date.utc") * 1000; 212 public static final String USER = getString("ro.build.user"); 213 public static final String HOST = getString("ro.build.host"); 214 getString(String property)215 private static String getString(String property) { 216 return SystemProperties.get(property, UNKNOWN); 217 } 218 getLong(String property)219 private static long getLong(String property) { 220 try { 221 return Long.parseLong(SystemProperties.get(property)); 222 } catch (NumberFormatException e) { 223 return -1; 224 } 225 } 226 } 227