public
class
MediaScannerConnection
extends Object
implements
ServiceConnection
java.lang.Object | |
↳ | android.media.MediaScannerConnection |
MediaScannerConnection provides a way for applications to pass a newly created or downloaded media file to the media scanner service. The media scanner service will read metadata from the file and add the file to the media content provider. The MediaScannerConnectionClient provides an interface for the media scanner service to return the Uri for a newly scanned file to the client of the MediaScannerConnection class.
Nested classes | |
---|---|
interface |
MediaScannerConnection.MediaScannerConnectionClient
An interface for notifying clients of MediaScannerConnection when a connection to the MediaScanner service has been established and when the scanning of a file has completed. |
interface |
MediaScannerConnection.OnScanCompletedListener
Interface for notifying clients of the result of scanning a requested media file. |
Public constructors | |
---|---|
MediaScannerConnection(Context context, MediaScannerConnection.MediaScannerConnectionClient client)
Constructs a new MediaScannerConnection object. |
Public methods | |
---|---|
void
|
connect()
Initiates a connection to the media scanner service. |
void
|
disconnect()
Releases the connection to the media scanner service. |
boolean
|
isConnected()
Returns whether we are connected to the media scanner service |
void
|
onServiceConnected(ComponentName className, IBinder service)
Part of the ServiceConnection interface. |
void
|
onServiceDisconnected(ComponentName className)
Part of the ServiceConnection interface. |
void
|
scanFile(String path, String mimeType)
Requests the media scanner to scan a file. |
static
void
|
scanFile(Context context, String[] paths, String[] mimeTypes, MediaScannerConnection.OnScanCompletedListener callback)
Convenience for constructing a |
Inherited methods | |
---|---|
From
class
java.lang.Object
| |
From
interface
android.content.ServiceConnection
|
MediaScannerConnection (Context context, MediaScannerConnection.MediaScannerConnectionClient client)
Constructs a new MediaScannerConnection object.
Parameters | |
---|---|
context |
Context :
the Context object, required for establishing a connection to
the media scanner service. |
client |
MediaScannerConnection.MediaScannerConnectionClient :
an optional object implementing the MediaScannerConnectionClient
interface, for receiving notifications from the media scanner.
|
void connect ()
Initiates a connection to the media scanner service.
onMediaScannerConnected()
will be called when the connection is established.
void disconnect ()
Releases the connection to the media scanner service.
boolean isConnected ()
Returns whether we are connected to the media scanner service
Returns | |
---|---|
boolean |
true if we are connected, false otherwise |
void onServiceConnected (ComponentName className, IBinder service)
Part of the ServiceConnection interface. Do not call.
Parameters | |
---|---|
className |
ComponentName :
The concrete component name of the service that has
been connected. |
service |
IBinder :
The IBinder of the Service's communication channel,
which you can now make calls on.
|
void onServiceDisconnected (ComponentName className)
Part of the ServiceConnection interface. Do not call.
Parameters | |
---|---|
className |
ComponentName :
The concrete component name of the service whose
connection has been lost.
|
void scanFile (String path, String mimeType)
Requests the media scanner to scan a file.
Success or failure of the scanning operation cannot be determined until
onScanCompleted(String, Uri)
is called.
Parameters | |
---|---|
path |
String :
the path to the file to be scanned. |
mimeType |
String :
an optional mimeType for the file.
If mimeType is null, then the mimeType will be inferred from the file extension.
|
void scanFile (Context context, String[] paths, String[] mimeTypes, MediaScannerConnection.OnScanCompletedListener callback)
Convenience for constructing a MediaScannerConnection
, calling
connect()
on it, and calling scanFile(Context, String[], String[], MediaScannerConnection.OnScanCompletedListener)
with the given
path and mimeType when the connection is
established.
Parameters | |
---|---|
context |
Context :
The caller's Context, required for establishing a connection to
the media scanner service.
Success or failure of the scanning operation cannot be determined until
onScanCompleted(String, Uri) is called. |
paths |
String :
Array of paths to be scanned. |
mimeTypes |
String :
Optional array of MIME types for each path.
If mimeType is null, then the mimeType will be inferred from the file extension. |
callback |
MediaScannerConnection.OnScanCompletedListener :
Optional callback through which you can receive the
scanned URI and MIME type; If null, the file will be scanned but
you will not get a result back. |
See also: