android.support.v4.os

Support android.os classes to assist with development of applications for android API level 4 or later.

Interfaces

CancellationSignal.OnCancelListener	Listens for cancellation.
ParcelableCompatCreatorCallbacks<T>	Callbacks a Parcelable creator should implement.

Classes

AsyncTaskCompat	Helper for accessing features in AsyncTask introduced after API level 4 in a backwards compatible fashion.
BuildCompat	BuildCompat contains additional platform version checking methods for testing compatibility with new features.
CancellationSignal	Static library support version of the framework's CancellationSignal.
EnvironmentCompat	Helper for accessing features in Environment introduced after API level 4 in a backwards compatible fashion.
ParcelableCompat	Helper for accessing features in Parcelable introduced after API level 4 in a backwards compatible fashion.
TraceCompat	Writes trace events to the system trace buffer.
UserManagerCompat	Helper for accessing features in UserManager introduced after API level 4 in a backwards compatible fashion.

Exceptions

OperationCanceledException

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