Android.OS Namespace

Classes

AsyncTask
AsyncTask.Status

Indicates the current status of the task.

AsyncTask<TParams,TProgress,TResult>
BadParcelableException

Exception thrown when a Parcelable is malformed or otherwise invalid.

BaseBundle

A mapping from String keys to values of various types.

BatteryManager

The BatteryManager class contains strings and constants used for values in the android.content.Intent#ACTION_BATTERY_CHANGED Intent, and provides a method for querying battery and charging properties.

Binder

Base class for a remotable object, the core part of a lightweight remote procedure call mechanism defined by IBinder.

Binder.InterfaceConsts
BinderConsts

Base interface for a remotable object, the core part of a lightweight remote procedure call mechanism designed for high performance when performing in-process and cross-process calls.

BugreportManager

Class that provides a privileged API to capture and consume bugreports.

BugreportManager.BugreportCallback

An interface describing the callback for bugreport progress and status.

Build

Information about the current build, extracted from system properties.

Build.Partition

Build information for a particular device partition.

Build.VERSION

Various version strings.

Build.VERSION_CODES

Enumeration of the currently known SDK version codes.

Bundle

A mapping from String keys to various Parcelable values.

Bundle.InterfaceConsts
CancellationSignal

Provides the ability to cancel an operation in progress.

CombinedVibration

A CombinedVibration describes a combination of haptic effects to be performed by one or more Vibrator Vibrators.

CombinedVibration.InterfaceConsts
CombinedVibration.ParallelCombination

A combination of haptic effects that should be played in multiple vibrators in parallel.

ConditionVariable

Class that implements the condition variable locking paradigm.

CountDownTimer

Schedule a countdown until a time in the future, with regular notifications on intervals along the way.

CpuUsageInfo

CPU usage information per core.

CpuUsageInfo.InterfaceConsts
DeadObjectException

The object you are calling has died, because its hosting process no longer exists.

DeadSystemException

The core Android system has died and is going through a runtime restart.

Debug

Provides various debugging methods for Android applications, including tracing and allocation counts.

Debug.InstructionCount

API for gathering and querying instruction counts.

Debug.MemoryInfo

This class is used to retrieved various statistics about the memory mappings for this process.

Debug.MemoryInfo.InterfaceConsts
DropBoxManager

Enqueues chunks of data (from various sources -- application crashes, kernel log records, etc.

DropBoxManager.Entry

A single entry retrieved from the drop box.

DropBoxManager.Entry.InterfaceConsts
Environment

Provides access to environment variables.

FileObserver

Monitors files (using inotify) to fire an event after files are accessed or changed by any process on the device (including this one).

FileUriExposedException

The exception that is thrown when an application exposes a file://android.net.Uri to another app.

FileUtils

Utility methods useful for working with files.

FileUtils.ProgressEventArgs
Handler

A Handler allows you to send and process Message and Runnable objects associated with a thread's MessageQueue.

HandlerThread

A Thread that has a Looper.

HardwarePropertiesManager

The HardwarePropertiesManager class provides a mechanism of accessing hardware state of a device: CPU, GPU and battery temperatures, CPU usage per core, fan speed, etc.

LimitExceededException

Indicates that the app has exceeded a limit set by the System.

LocaleList

LocaleList is an immutable list of Locales, typically used to keep an ordered list of user preferences for locales.

LocaleList.InterfaceConsts
Looper

Class used to run a message loop for a thread.

MemoryFile

MemoryFile is a wrapper for SharedMemory which can optionally be set to purgeable.

Message

Defines a message containing a description and arbitrary data object that can be sent to a Handler.

Message.InterfaceConsts
MessageQueue

Low-level class holding the list of messages to be dispatched by a Looper.

Messenger

Reference to a Handler, which others can use to send messages to it.

Messenger.InterfaceConsts
NetworkOnMainThreadException

The exception that is thrown when an application attempts to perform a networking operation on its main thread.

OperationCanceledException

An exception type that is thrown when an operation in progress is canceled.

Parcel

Container for a message (data and object references) that can be sent through an IBinder.

Parcelable

Interface for classes whose instances can be written to and restored from a Parcel.

ParcelFileDescriptor

The FileDescriptor returned by Parcel#readFileDescriptor, allowing you to close it when done with it.

ParcelFileDescriptor.AutoCloseInputStream

An InputStream you can create on a ParcelFileDescriptor, which will take care of calling ParcelFileDescriptor#close ParcelFileDescriptor.close() for you when the stream is closed.

ParcelFileDescriptor.AutoCloseOutputStream

An OutputStream you can create on a ParcelFileDescriptor, which will take care of calling ParcelFileDescriptor#close ParcelFileDescriptor.close() for you when the stream is closed.

ParcelFileDescriptor.CloseEventArgs
ParcelFileDescriptor.FileDescriptorDetachedException

Exception that indicates that the file descriptor was detached.

ParcelFileDescriptor.InterfaceConsts
ParcelFormatException

The contents of a Parcel (usually during unmarshalling) does not contain the expected data.

ParcelUuid

This class is a Parcelable wrapper around UUID which is an immutable representation of a 128-bit universally unique identifier.

ParcelUuid.InterfaceConsts
PatternMatcher

A simple pattern matcher, which is safe to use on untrusted data: it does not provide full reg-exp support, only simple globbing that can not be used maliciously.

PatternMatcher.InterfaceConsts
PerformanceHintManager

The PerformanceHintManager allows apps to send performance hint to system.

PerformanceHintManager.Session

A Session represents a group of threads with an inter-related workload such that hints for their performance should be considered as a unit.

PersistableBundle

A mapping from String keys to values of various types.

PersistableBundle.InterfaceConsts
PowerManager

This class gives you control of the power state of the device.

PowerManager.ThermalStatusChangedEventArgs
PowerManager.WakeLock

A wake lock is a mechanism to indicate that your application needs to have the device stay on.

Process

Tools for managing OS processes.

ProxyFileDescriptorCallback

Callback that handles file system requests from ProxyFileDescriptor.

RecoverySystem

RecoverySystem contains methods for interacting with the Android recovery system (the separate partition that can be used to install system updates, wipe user data, etc.

RecoverySystem.ProgressEventArgs
RemoteCallbackList

Takes care of the grunt work of maintaining a list of remote interfaces, typically for the use of performing callbacks from a android.app.Service to its clients.

RemoteException

Parent exception for all Binder remote-invocation errors

ResultReceiver

Generic interface for receiving a callback result from someone.

ResultReceiver.InterfaceConsts
SharedMemory

SharedMemory enables the creation, mapping, and protection control over anonymous shared memory.

SharedMemory.InterfaceConsts
StatFs

Retrieve overall information about the space on a filesystem.

StrictMode

StrictMode is a developer tool which detects things you might be doing by accident and brings them to your attention so you can fix them.

StrictMode.ThreadPolicy

StrictMode policy applied to a certain thread.

StrictMode.ThreadPolicy.Builder

Creates T:Android.OS.StrictMode+ThreadPolicy instances.

StrictMode.ThreadViolationEventArgs
StrictMode.VmPolicy

StrictMode policy applied to all threads in the virtual machine's process.

StrictMode.VmPolicy.Builder

Creates T:Android.OS.StrictMode+VmPolicy instances.

StrictMode.VmViolationEventArgs
SystemClock

Core timekeeping facilities.

TestLooperManager

Blocks a looper from executing any messages, and allows the holder of this object to control when and which messages get executed until it is released.

TokenWatcher

A TokenWatcher watches a collection of IBinders.

Trace

Writes trace events to the system trace buffer.

TransactionTooLargeException

The Binder transaction failed because it was too large.

UserHandle

Representation of a user on the device.

UserHandle.InterfaceConsts
UserManager

Manages users and user details on a multi-user system.

UserManager.UserOperationException

Thrown to indicate user operation failed.

VibrationAttributes

A class to encapsulate a collection of attributes describing information about a vibration

VibrationAttributes.Builder

Builder class for VibrationAttributes objects.

VibrationAttributes.InterfaceConsts
VibrationEffect

A VibrationEffect describes a haptic effect to be performed by a Vibrator.

VibrationEffect.Composition

A composition of haptic primitives that, when combined, create a single haptic effect.

VibrationEffect.InterfaceConsts
Vibrator

Class that operates the vibrator on the device.

VibratorManager

Class that provides access to all vibrators from the device, as well as the ability to run them in a synchronized fashion.

WorkSource

Describes the source of some work that may be done by someone else.

WorkSource.InterfaceConsts

Interfaces

CancellationSignal.IOnCancelListener

Listens for cancellation.

FileUtils.IProgressListener

Listener that is called periodically as progress is made.

Handler.ICallback

Callback interface you can use when instantiating a Handler to avoid having to implement your own subclass of Handler.

IBinder

Base interface for a remotable object, the core part of a lightweight remote procedure call mechanism designed for high performance when performing in-process and cross-process calls.

IBinderDeathRecipient

Interface for receiving a callback when the process hosting an IBinder has gone away.

IInterface

Base class for Binder interfaces.

IOutcomeReceiver

Callback interface intended for use when an asynchronous operation may result in a failure.

IParcelable

Interface for classes whose instances can be written to and restored from a Parcel.

IParcelableClassLoaderCreator

Specialization of Creator that allows you to receive the ClassLoader the object is being created in.

IParcelableCreator

Interface that must be implemented and provided as a public CREATOR field that generates instances of your Parcelable class from a Parcel.

MessageQueue.IIdleHandler

Callback interface for discovering when a thread is going to block waiting for more messages.

MessageQueue.IOnFileDescriptorEventListener

A listener which is invoked when file descriptor related events occur.

ParcelFileDescriptor.IOnCloseListener

Callback indicating that a ParcelFileDescriptor has been closed.

PowerManager.IOnThermalStatusChangedListener

Listener passed to PowerManager#addThermalStatusListener and PowerManager#removeThermalStatusListener to notify caller of thermal status has changed.

RecoverySystem.IProgressListener

Interface definition for a callback to be invoked regularly as verification proceeds.

StrictMode.IOnThreadViolationListener

When #ThreadPolicy.Builder#penaltyListener is enabled, the listener is called on the provided executor when a Thread violation occurs.

StrictMode.IOnVmViolationListener

When #VmPolicy.Builder#penaltyListener is enabled, the listener is called on the provided executor when a VM violation occurs.

Enums

BatteryHealth

Enumerates values returned by several types.

BatteryPlugged

Enumerates values returned by several types.

BatteryProperty

Enumerates values returned by several types.

BatteryStatus

Enumerates values returned by several types.

BugreportErrorCode
BuildVersionCodes

Enumerates values returned by several types and taken as a parameter of the F:Android.Views.InputMethods.EditorInfo.MakeCompatible member.

DebugShow

Enumerates values returned by several types and taken as a parameter of the F:Android.OS.Debug.PrintLoadedClasses member.

DebugTraceOptions

Enumerates values returned by the TraceCountAllocs, CountAllocs, and None members and taken as a parameter of the StartMethodTracing() member.

DeviceTemperatureType
DropBoxManagerFlags

Enumerates values returned by several types and taken as a parameter of several types.

FileObserverEvents

Enumerates values returned by several methods of FileObserverEvents and taken as a parameter of the F:Android.OS.FileObserver..ctor, and F:Android.OS.FileObserver.OnEvent members.

LocationPowerSaveMode
MessageQueueEventType
ParcelableWriteFlags

Enumerates values returned by several types and taken as a parameter of several types.

ParcelFileMode

Enumerates values returned by several types and taken as a parameter of the F:Android.OS.ParcelFileDescriptor.Open, and F:Android.OS.ParcelFileDescriptor.Open members.

Pattern

Enumerates values returned by several types and taken as a parameter of several types.

QuietMode
Signal

Enumerates values returned by the Kill, Quit, and Usr1 members and taken as a parameter of the F:Android.OS.Process.SendSignal member.

TemperatureSource
ThermalStatus
ThreadPriority

Enumerates values returned by several types and taken as a parameter of the F:Android.OS.Process.SetThreadPriority, and F:Android.OS.Process.SetThreadPriority members.

TransactionFlags

Enumerates values returned by several types and taken as a parameter of the F:Android.OS.Binder.Transact, and F:Android.OS.IBinder.Transact members.

UserCreationFailureReason
UserOperationResultCode
VibrationAttributeFlags
VibrationAttributesUsageClass
VibrationAttributesUsageType
VibrationEffectCompositionPrimitive
VibrationEffectEffectType
VibrationEffectSupport
WakeLockFlags

Delegates

MessageQueue.FileDescriptorEventHandler