public
class
Build
extends Object
| java.lang.Object | |
| ↳ | android.os.Build |
Information about the current build, extracted from system properties.
classBuild.Partition
Build information for a particular device partition.
classBuild.VERSION
Various version strings.
classBuild.VERSION_CODES
Enumeration of the currently known SDK version codes.
classBuild.VERSION_CODES_FULL
Enumeration of the currently known SDK major and minor version codes.
Constants | |
|---|---|
int |
BACKPORTED_FIX_STATUS_FIXED
The known issue is fixed on this device. |
int |
BACKPORTED_FIX_STATUS_NOT_APPLICABLE
The known issue is not applicable to this device. |
int |
BACKPORTED_FIX_STATUS_NOT_FIXED
The known issue is not fixed on this device. |
int |
BACKPORTED_FIX_STATUS_UNKNOWN
The status of the known issue on this device is not known. |
String |
UNKNOWN
Value used for when a build property is unknown. |
Fields | |
|---|---|
public
static
final
String |
BOARD
The name of the underlying board, like "goldfish". |
public
static
final
String |
BOOTLOADER
The system bootloader version number. |
public
static
final
String |
BRAND
The consumer-visible brand with which the product/hardware will be associated, if any. |
public
static
final
String |
CPU_ABI
This field was deprecated
in API level 21.
Use |
public
static
final
String |
CPU_ABI2
This field was deprecated
in API level 21.
Use |
public
static
final
String |
DEVICE
The name of the industrial design. |
public
static
final
String |
DISPLAY
A build ID string meant for displaying to the user |
public
static
final
String |
FINGERPRINT
A string that uniquely identifies this build. |
public
static
final
String |
HARDWARE
The name of the hardware (from the kernel command line or /proc). |
public
static
final
String |
HOST
|
public
static
final
String |
ID
Either a changelist number, or a label like "M4-rc20". |
public
static
final
String |
MANUFACTURER
The manufacturer of the product/hardware. |
public
static
final
String |
MODEL
The end-user-visible name for the end product. |
public
static
final
String |
ODM_SKU
The SKU of the device as set by the original design manufacturer (ODM). |
public
static
final
String |
PRODUCT
The name of the overall product. |
public
static
final
String |
RADIO
This field was deprecated
in API level 15.
The radio firmware version is frequently not
available when this class is initialized, leading to a blank or
"unknown" value for this string. Use
|
public
static
final
String |
SERIAL
This field was deprecated
in API level 26.
Use |
public
static
final
String |
SKU
The SKU of the hardware (from the kernel command line). |
public
static
final
String |
SOC_MANUFACTURER
The manufacturer of the device's primary system-on-chip. |
public
static
final
String |
SOC_MODEL
The model name of the device's primary system-on-chip. |
public
static
final
String |
STRONGBOX_MANUFACTURER
The manufacturer of the device's StrongBox chip. |
public
static
final
String |
STRONGBOX_MODEL
The model of the device's StrongBox chip. |
public
static
final
String[] |
SUPPORTED_32_BIT_ABIS
An ordered list of 32 bit ABIs supported by this device. |
public
static
final
String[] |
SUPPORTED_64_BIT_ABIS
An ordered list of 64 bit ABIs supported by this device. |
public
static
final
String[] |
SUPPORTED_ABIS
An ordered list of ABIs supported by this device. |
public
static
final
String |
TAGS
Comma-separated tags describing the build, like "unsigned,debug". |
public
static
final
long |
TIME
The time at which the build was produced, given in milliseconds since the UNIX epoch. |
public
static
final
String |
TYPE
The type of build, like "user" or "eng". |
public
static
final
String |
USER
|
Public constructors | |
|---|---|
Build()
|
|
Public methods | |
|---|---|
static
int
|
getBackportedFixStatus(long id)
The status of the backported fix for a known issue on this device. |
static
List<Build.Partition>
|
getFingerprintedPartitions()
Get build information about partitions that have a separate fingerprint defined. |
static
int
|
getMajorSdkVersion(int sdkIntFull)
Obtain the major version encoded in a VERSION_CODES_FULL value. |
static
int
|
getMinorSdkVersion(int sdkIntFull)
Obtain the minor version encoded in a VERSION_CODES_FULL value. |
static
String
|
getRadioVersion()
Returns the version string for the radio firmware. |
static
String
|
getSerial()
Gets the hardware serial number, if available. |
Inherited methods | |
|---|---|
public static final int BACKPORTED_FIX_STATUS_FIXED
The known issue is fixed on this device.
Constant Value: 1 (0x00000001)
public static final int BACKPORTED_FIX_STATUS_NOT_APPLICABLE
The known issue is not applicable to this device.
For example if the issue only affects a specific brand, devices from other brands would report not applicable.
Constant Value: 2 (0x00000002)
public static final int BACKPORTED_FIX_STATUS_NOT_FIXED
The known issue is not fixed on this device.
Constant Value: 3 (0x00000003)
public static final int BACKPORTED_FIX_STATUS_UNKNOWN
The status of the known issue on this device is not known.
Constant Value: 0 (0x00000000)
public static final String UNKNOWN
Value used for when a build property is unknown.
Constant Value: "unknown"
public static final String BOARD
The name of the underlying board, like "goldfish".
public static final String BOOTLOADER
The system bootloader version number.
public static final String BRAND
The consumer-visible brand with which the product/hardware will be associated, if any.
public static final String CPU_ABI
This field was deprecated
in API level 21.
Use SUPPORTED_ABIS instead.
The name of the instruction set (CPU type + ABI convention) of native code.
public static final String CPU_ABI2
This field was deprecated
in API level 21.
Use SUPPORTED_ABIS instead.
The name of the second instruction set (CPU type + ABI convention) of native code.
public static final String DISPLAY
A build ID string meant for displaying to the user
public static final String FINGERPRINT
A string that uniquely identifies this build. Do not attempt to parse this value.
public static final String HARDWARE
The name of the hardware (from the kernel command line or /proc).
public static final String ID
Either a changelist number, or a label like "M4-rc20".
public static final String MANUFACTURER
The manufacturer of the product/hardware.
public static final String MODEL
The end-user-visible name for the end product.
public static final String ODM_SKU
The SKU of the device as set by the original design manufacturer (ODM).
This is a runtime-initialized property set during startup to configure device
services. If no value is set, this is reported as UNKNOWN.
The ODM SKU may have multiple variants for the same system SKU in case a manufacturer produces variants of the same design. For example, the same build may be released with variations in physical keyboard and/or display hardware, each with a different ODM SKU.
public static final String RADIO
This field was deprecated
in API level 15.
The radio firmware version is frequently not
available when this class is initialized, leading to a blank or
"unknown" value for this string. Use
getRadioVersion() instead.
The radio firmware version number.
public static final String SERIAL
This field was deprecated
in API level 26.
Use getSerial() instead.
A hardware serial number, if available. Alphanumeric only, case-insensitive.
This field is always set to Build.UNKNOWN.
public static final String SKU
The SKU of the hardware (from the kernel command line).
The SKU is reported by the bootloader to configure system software features.
If no value is supplied by the bootloader, this is reported as UNKNOWN.
public static final String SOC_MANUFACTURER
The manufacturer of the device's primary system-on-chip.
public static final String SOC_MODEL
The model name of the device's primary system-on-chip.
public static final String STRONGBOX_MANUFACTURER
The manufacturer of the device's StrongBox chip. If the device does not use StrongBox, this should be set to "unsupported".
public static final String STRONGBOX_MODEL
The model of the device's StrongBox chip. If the device does not use StrongBox, this should be set to "unsupported".
public static final String[] SUPPORTED_32_BIT_ABIS
An ordered list of 32 bit ABIs supported by this device. The most preferred ABI
is the first element in the list.
See SUPPORTED_ABIS and SUPPORTED_64_BIT_ABIS.
public static final String[] SUPPORTED_64_BIT_ABIS
An ordered list of 64 bit ABIs supported by this device. The most preferred ABI
is the first element in the list.
See SUPPORTED_ABIS and SUPPORTED_32_BIT_ABIS.
public static final String[] SUPPORTED_ABIS
An ordered list of ABIs supported by this device. The most preferred ABI is the first
element in the list.
See SUPPORTED_32_BIT_ABIS and SUPPORTED_64_BIT_ABIS.
public static final String TAGS
Comma-separated tags describing the build, like "unsigned,debug".
public static final long TIME
The time at which the build was produced, given in milliseconds since the UNIX epoch.
public Build ()
public static int getBackportedFixStatus (long id)
The status of the backported fix for a known issue on this device.
| Parameters | |
|---|---|
id |
long: The id of the known issue to check. |
intBACKPORTED_FIX_STATUS_FIXED if the known issue is
fixed on this device,
BACKPORTED_FIX_STATUS_NOT_FIXED if the known issue is not
fixed on this device,
BACKPORTED_FIX_STATUS_NOT_APPLICABLE if the known issue is
is not applicable on this device,
otherwise BACKPORTED_FIX_STATUS_UNKNOWN.
BACKPORTED_FIX_STATUS_UNKNOWNBACKPORTED_FIX_STATUS_FIXEDBACKPORTED_FIX_STATUS_NOT_APPLICABLEBACKPORTED_FIX_STATUS_NOT_FIXEDpublic static List<Build.Partition> getFingerprintedPartitions ()
Get build information about partitions that have a separate fingerprint defined. The list includes partitions that are suitable candidates for over-the-air updates. This is not an exhaustive list of partitions on the device.
| Returns | |
|---|---|
List<Build.Partition> |
This value cannot be null. |
public static int getMajorSdkVersion (int sdkIntFull)
Obtain the major version encoded in a VERSION_CODES_FULL value. This value is guaranteed to be non-negative.
| Parameters | |
|---|---|
sdkIntFull |
int |
| Returns | |
|---|---|
int |
The major version encoded in a VERSION_CODES_FULL value |
public static int getMinorSdkVersion (int sdkIntFull)
Obtain the minor version encoded in a VERSION_CODES_FULL value. This value is guaranteed to be non-negative.
| Parameters | |
|---|---|
sdkIntFull |
int |
| Returns | |
|---|---|
int |
The minor version encoded in a VERSION_CODES_FULL value |
public static String getRadioVersion ()
Returns the version string for the radio firmware. May return null (if, for instance, the radio is not currently on).
| Returns | |
|---|---|
String |
|
public static String getSerial ()
Gets the hardware serial number, if available.
Note: Root access may allow you to modify device identifiers, such as the hardware serial number. If you change these identifiers, you can not use key attestation to obtain proof of the device's original identifiers. KeyMint will reject an ID attestation request if the identifiers provided by the frameworks do not match the identifiers it was provisioned with.
Starting with API level 29, persistent device identifiers are guarded behind additional restrictions, and apps are recommended to use resettable identifiers (see Best practices for unique identifiers). This method can be invoked if one of the following requirements is met:
TelephonyManager.hasCarrierPrivileges()) on any active subscription.
android.app.role.RoleManager.isRoleHeld(String)).
DevicePolicyManager.getEnrollmentSpecificId()).
If the calling app does not meet one of these requirements then this method will behave as follows:
Build.UNKNOWN is returned.| Returns | |
|---|---|
String |
The serial number if specified. |
Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
Last updated 2026-03-26 UTC.