Package android.os

Interface Summary

Interface	Description
CancellationSignal.OnCancelListener	Listens for cancellation.
Handler.Callback	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.
IBinder.DeathRecipient	Interface for receiving a callback when the process hosting an IBinder has gone away.
IInterface	Base class for Binder interfaces.
IMessenger
MessageQueue.IdleHandler	Callback interface for discovering when a thread is going to block waiting for more messages.
MessageQueue.OnFileDescriptorEventListener	A listener which is invoked when file descriptor related events occur.
Parcelable	Interface for classes whose instances can be written to and restored from a Parcel.
Parcelable.ClassLoaderCreator<T>	Specialization of Parcelable.Creator that allows you to receive the ClassLoader the object is being created in.
Parcelable.Creator<T>	Interface that must be implemented and provided as a public CREATOR field that generates instances of your Parcelable class from a Parcel.
ParcelFileDescriptor.OnCloseListener	Callback indicating that a ParcelFileDescriptor has been closed.

Class Summary

Class	Description
AsyncTask<Params,Progress,Result>	AsyncTask enables proper and easy use of the UI thread.
BaseBundle	A mapping from String values to various types.
Bundle	A mapping from String values to various Parcelable types.
CancellationSignal	Provides the ability to cancel an operation in progress.
Debug	Provides various debugging methods for Android applications, including tracing and allocation counts.
Debug.InstructionCount	Deprecated. Instruction counting is no longer supported.
Debug.MemoryInfo	This class is used to retrieved various statistics about the memory mappings for this process.
Handler	A Handler allows you to send and process Message and Runnable objects associated with a thread's MessageQueue.
Looper	Class used to run a message loop for a thread.
MemoryFile	MemoryFile is a wrapper for the Linux ashmem driver.
Message	Defines a message containing a description and arbitrary data object that can be sent to a Handler.
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.
Parcel	Container for a message (data and object references) that can be sent through an IBinder.
ParcelableParcel	Parcelable containing a raw Parcel of data.
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() 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() for you when the stream is closed.
PersistableBundle	A mapping from String values to various types that can be saved to persistent and later restored.
Process	Tools for managing OS processes.
SystemClock	Core timekeeping facilities.

Enum Summary

Enum	Description
AsyncTask.Status	Indicates the current status of the task.

Exception Summary

Exception	Description
BadParcelableException	The object you are calling has died, because its hosting process no longer exists.
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.
ParcelFileDescriptor.FileDescriptorDetachedException	Exception that indicates that the file descriptor was detached.
RemoteException	Parent exception for all Binder remote-invocation errors

Annotation Types Summary

Annotation Type	Description
Debug.DebugProperty	Annotation to put on fields you want to set with Debug.setFieldsOn(Class, boolean).
MessageQueue.OnFileDescriptorEventListener.Events