Android.OS Namespace

Classes

AsyncTask	AsyncTask was intended to enable proper and easy use of the UI thread.
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 lets you query and request control of aspects of the device's power state.
PowerManager.ThermalStatusChangedEventArgs
PowerManager.WakeLock	A wake lock is a mechanism to indicate that your application needs to have the device stay on.
PowerManager.WakeLockStateEventArgs
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 Note: not all exceptions from binder services will be subclasses of this.
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	Encapsulates 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 elements that are combined to be playable as a single VibrationEffect.
VibrationEffect.InterfaceConsts
Vibrator	Class that operates the vibrator on the device.
VibratorManager	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.
PowerManager.IWakeLockStateListener	A listener interface to get notified when the wakelock is enabled/disabled.
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
LowPowerStandbyAllowedReasons
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