package

android.content

Contains classes for accessing and publishing data on a device. It includes three main categories of APIs:

Content sharing (android.content)

For sharing content between application components. The most important classes are:

ContentProvider and ContentResolver for managing and publishing persistent data associated with an application.
Intent and IntentFilter, for delivering structured messages between different application components—allowing components to initiate other components and return results.

Package management (android.content.pm)

For accessing information about an Android package (an .apk), including information about its activities, permissions, services, signatures, and providers. The most important class for accessing this information is PackageManager.

Resource management (android.content.res)

For retrieving resource data associated with an application, such as strings, drawables, media, and device configuration details. The most important class for accessing this data is Resources.

Interfaces

ClipboardManager.OnPrimaryClipChangedListener
ComponentCallbacks	The set of callback APIs that are common to all application components (`Activity`, `Service`, `ContentProvider`, and `Application`).
ComponentCallbacks2	Extended `ComponentCallbacks` interface with a new callback for finer-grained memory management.
ContentProvider.PipeDataWriter<T>	Interface to write a stream of data to a pipe.
DialogInterface
DialogInterface.OnCancelListener	Interface used to allow the creator of a dialog to run some code when the dialog is canceled.
DialogInterface.OnClickListener	Interface used to allow the creator of a dialog to run some code when an item on the dialog is clicked..
DialogInterface.OnDismissListener	Interface used to allow the creator of a dialog to run some code when the dialog is dismissed.
DialogInterface.OnKeyListener	Interface definition for a callback to be invoked when a key event is dispatched to this dialog.
DialogInterface.OnMultiChoiceClickListener	Interface used to allow the creator of a dialog to run some code when an item in a multi-choice dialog is clicked.
DialogInterface.OnShowListener	Interface used to allow the creator of a dialog to run some code when the dialog is shown.
EntityIterator	A specialization of `Iterator` that allows iterating over a collection of `Entity` objects.
IntentSender.OnFinished	Callback interface for discovering when a send operation has completed.
Loader.OnLoadCompleteListener<D>	Interface that is implemented to discover when a Loader has finished loading its data.
ServiceConnection	Interface for monitoring the state of an application service.
SharedPreferences	Interface for accessing and modifying preference data returned by `getSharedPreferences(String, int)`.
SharedPreferences.Editor	Interface used for modifying values in a `SharedPreferences` object.
SharedPreferences.OnSharedPreferenceChangeListener	Interface definition for a callback to be invoked when a shared preference is changed.
SyncStatusObserver

Classes

AbstractThreadedSyncAdapter	An abstract implementation of a SyncAdapter that spawns a thread to invoke a sync operation.
AsyncQueryHandler	A helper class to help make handling asynchronous `ContentResolver` queries easier.
AsyncQueryHandler.WorkerArgs
AsyncQueryHandler.WorkerHandler
AsyncTaskLoader<D>	Abstract Loader that provides an `AsyncTask` to do the work.
BroadcastReceiver	Base class for code that will receive intents sent by sendBroadcast().
BroadcastReceiver.PendingResult	State for a result that is pending for a broadcast receiver.
ClipboardManager	Interface to the clipboard service, for placing and retrieving text in the global clipboard.
ClipData	Representation of a clipped data on the clipboard.
ClipData.Item	Description of a single item in a ClippedData.
ClipDescription	Meta-data describing the contents of a `ClipData`.
ComponentName	Identifier for a specific application component (`Activity`, `Service`, `BroadcastReceiver`, or `ContentProvider`) that is available.
ContentProvider	Content providers are one of the primary building blocks of Android applications, providing content to applications.
ContentProviderClient	The public interface object used to interact with a `ContentProvider`.
ContentProviderOperation
ContentProviderOperation.Builder	Used to add parameters to a `ContentProviderOperation`.
ContentProviderResult	Contains the result of the application of a `ContentProviderOperation`.
ContentQueryMap	Caches the contents of a cursor into a Map of String->ContentValues and optionally keeps the cache fresh by registering for updates on the content backing the cursor.
ContentResolver	This class provides applications access to the content model.
ContentUris	Utility methods useful for working with `Uri` objects that use the "content" (content://) scheme.
ContentValues	This class is used to store a set of values that the `ContentResolver` can process.
Context	Interface to global information about an application environment.
ContextWrapper	Proxying implementation of Context that simply delegates all of its calls to another Context.
CursorLoader	A loader that queries the `ContentResolver` and returns a `Cursor`.
Entity	A representation of a item using ContentValues.
Entity.NamedContentValues
Intent	An intent is an abstract description of an operation to be performed.
Intent.FilterComparison	Wrapper class holding an Intent and implementing comparisons on it for the purpose of filtering.
Intent.ShortcutIconResource	Represents a shortcut/live folder icon resource.
IntentFilter	Structured description of Intent values to be matched.
IntentFilter.AuthorityEntry	This is an entry for a single authority in the Iterator returned by `authoritiesIterator()`.
IntentSender	A description of an Intent and target action to perform with it.
Loader<D>	An abstract class that performs asynchronous loading of data.
Loader.ForceLoadContentObserver	An implementation of a ContentObserver that takes care of connecting it to the Loader to have the loader re-load its data when the observer is told it has changed.
MutableContextWrapper	Special version of `ContextWrapper` that allows the base context to be modified after it is initially set.
PeriodicSync	Value type that contains information about a periodic sync.
SearchRecentSuggestionsProvider	This superclass can be used to create a simple search suggestions provider for your application.
SyncAdapterType	Value type that represents a SyncAdapterType.
SyncContext
SyncInfo	Information about the sync operation that is currently underway.
SyncResult	This class is used to communicate the results of a sync operation to the SyncManager.
SyncStats	Used to record various statistics about the result of a sync operation.
UriMatcher	Utility class to aid in matching URIs in content providers.

Exceptions

ActivityNotFoundException	This exception is thrown when a call to `startActivity(Intent)` or one of its variants fails because an Activity can not be found to execute the given Intent.
IntentFilter.MalformedMimeTypeException	This exception is thrown when a given MIME type does not have a valid syntax.
IntentSender.SendIntentException	Exception thrown when trying to send through a PendingIntent that has been canceled or is otherwise no longer able to execute the request.
OperationApplicationException	Thrown when an application of a `ContentProviderOperation` fails due the specified constraints.
ReceiverCallNotAllowedException	This exception is thrown from `registerReceiver(BroadcastReceiver, IntentFilter)` and `bindService(Intent, ServiceConnection, int)` when these methods are being used from an `BroadcastReceiver` component.