public class SubtitleController extends Object
Modifier and Type | Class and Description |
---|---|
static interface |
SubtitleController.Anchor
Subtitle anchor, an object that is able to display a subtitle renderer,
e.g. a VideoView.
|
static interface |
SubtitleController.Listener |
static class |
SubtitleController.Renderer
Interface for supporting a single or multiple subtitle types in
MediaPlayer . |
Constructor and Description |
---|
SubtitleController(Context context,
MediaTimeProvider timeProvider,
SubtitleController.Listener listener)
Creates a subtitle controller for a media playback object that implements
the MediaTimeProvider interface.
|
Modifier and Type | Method and Description |
---|---|
SubtitleTrack |
addTrack(MediaFormat format)
Adds a new, external subtitle track to the manager.
|
protected void |
finalize()
Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
|
SubtitleTrack |
getDefaultTrack() |
SubtitleTrack |
getSelectedTrack() |
SubtitleTrack[] |
getTracks() |
boolean |
hasRendererFor(MediaFormat format) |
void |
hide()
Hide the selected (or default) subtitle track.
|
void |
registerRenderer(SubtitleController.Renderer renderer)
Add support for a subtitle format in
MediaPlayer . |
void |
reset() |
void |
selectDefaultTrack() |
boolean |
selectTrack(SubtitleTrack track)
Selects a subtitle track.
|
void |
setAnchor(SubtitleController.Anchor anchor) |
void |
show()
Show the selected (or default) subtitle track.
|
public SubtitleController(Context context, MediaTimeProvider timeProvider, SubtitleController.Listener listener)
timeProvider
- protected void finalize() throws Throwable
Object
finalize
method to dispose of
system resources or to perform other cleanup.
The general contract of finalize
is that it is invoked
if and when the JavaTM virtual
machine has determined that there is no longer any
means by which this object can be accessed by any thread that has
not yet died, except as a result of an action taken by the
finalization of some other object or class which is ready to be
finalized. The finalize
method may take any action, including
making this object available again to other threads; the usual purpose
of finalize
, however, is to perform cleanup actions before
the object is irrevocably discarded. For example, the finalize method
for an object that represents an input/output connection might perform
explicit I/O transactions to break the connection before the object is
permanently discarded.
The finalize
method of class Object
performs no
special action; it simply returns normally. Subclasses of
Object
may override this definition.
The Java programming language does not guarantee which thread will
invoke the finalize
method for any given object. It is
guaranteed, however, that the thread that invokes finalize will not
be holding any user-visible synchronization locks when finalize is
invoked. If an uncaught exception is thrown by the finalize method,
the exception is ignored and finalization of that object terminates.
After the finalize
method has been invoked for an object, no
further action is taken until the Java virtual machine has again
determined that there is no longer any means by which this object can
be accessed by any thread that has not yet died, including possible
actions by other objects or classes which are ready to be finalized,
at which point the object may be discarded.
The finalize
method is never invoked more than once by a Java
virtual machine for any given object.
Any exception thrown by the finalize
method causes
the finalization of this object to be halted, but is otherwise
ignored.
public SubtitleTrack[] getTracks()
MediaPlayer
as well as any tracks added
manually via addTrack(android.media.MediaFormat)
.public SubtitleTrack getSelectedTrack()
public boolean selectTrack(SubtitleTrack track)
MediaPlayer
. However, this does
not change the subtitle visibility.
Should be called from the anchor's (UI) thread. #Anchor.getSubtitleLooper
track
- The subtitle track to select. This must be one of the
tracks in getTracks()
.public SubtitleTrack getDefaultTrack()
public void selectDefaultTrack()
public void reset()
public SubtitleTrack addTrack(MediaFormat format)
format
- the format of the track that will include at least
the MIME type MediaFormat@KEY_MIME
.SubtitleTrack
objectpublic void show()
#Anchor.getSubtitleLooper
public void hide()
#Anchor.getSubtitleLooper
public void registerRenderer(SubtitleController.Renderer renderer)
MediaPlayer
.renderer
- a SubtitleController.Renderer
object that adds
support for a subtitle format.public boolean hasRendererFor(MediaFormat format)
public void setAnchor(SubtitleController.Anchor anchor)