FileDocCategorySizeDatePackage
Media.javaAPI DocAndroid 5.1 API11721Thu Mar 12 22:22:08 GMT 2015com.android.commands.media

Media

public class Media extends com.android.internal.os.BaseCommand

Fields Summary
private android.media.session.ISessionManager
mSessionService
Constructors Summary
Methods Summary
public static voidmain(java.lang.String[] args)
Command-line entry point.

param
args The command-line arguments

        (new Media()).run(args);
public voidonRun()

        mSessionService = ISessionManager.Stub.asInterface(ServiceManager.checkService(
                Context.MEDIA_SESSION_SERVICE));
        if (mSessionService == null) {
            System.err.println(NO_SYSTEM_ERROR_CODE);
            throw new AndroidException(
                    "Can't connect to media session service; is the system running?");
        }

        String op = nextArgRequired();

        if (op.equals("dispatch")) {
            runDispatch();
        } else if (op.equals("list-sessions")) {
            runListSessions();
        } else if (op.equals("monitor")) {
            runMonitor();
        } else {
            showError("Error: unknown command '" + op + "'");
            return;
        }
public voidonShowUsage(java.io.PrintStream out)

        out.println(
                "usage: media [subcommand] [options]\n" +
                "       media dispatch KEY\n" +
                "       media list-sessions\n" +
                "       media monitor <tag>\n" +
                "\n" +
                "media dispatch: dispatch a media key to the system.\n" +
                "                KEY may be: play, pause, play-pause, mute, headsethook,\n" +
                "                stop, next, previous, rewind, record, fast-forword.\n" +
                "media list-sessions: print a list of the current sessions.\n" +
                        "media monitor: monitor updates to the specified session.\n" +
                "                       Use the tag from list-sessions.\n"
        );
private voidrunDispatch()

        String cmd = nextArgRequired();
        int keycode;
        if ("play".equals(cmd)) {
            keycode = KeyEvent.KEYCODE_MEDIA_PLAY;
        } else if ("pause".equals(cmd)) {
            keycode = KeyEvent.KEYCODE_MEDIA_PAUSE;
        } else if ("play-pause".equals(cmd)) {
            keycode = KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE;
        } else if ("mute".equals(cmd)) {
            keycode = KeyEvent.KEYCODE_MUTE;
        } else if ("headsethook".equals(cmd)) {
            keycode = KeyEvent.KEYCODE_HEADSETHOOK;
        } else if ("stop".equals(cmd)) {
            keycode = KeyEvent.KEYCODE_MEDIA_STOP;
        } else if ("next".equals(cmd)) {
            keycode = KeyEvent.KEYCODE_MEDIA_NEXT;
        } else if ("previous".equals(cmd)) {
            keycode = KeyEvent.KEYCODE_MEDIA_PREVIOUS;
        } else if ("rewind".equals(cmd)) {
            keycode = KeyEvent.KEYCODE_MEDIA_REWIND;
        } else if ("record".equals(cmd)) {
            keycode = KeyEvent.KEYCODE_MEDIA_RECORD;
        } else if ("fast-forward".equals(cmd)) {
            keycode = KeyEvent.KEYCODE_MEDIA_FAST_FORWARD;
        } else {
            showError("Error: unknown dispatch code '" + cmd + "'");
            return;
        }

        final long now = SystemClock.uptimeMillis();
        sendMediaKey(new KeyEvent(now, now, KeyEvent.ACTION_DOWN, keycode, 0, 0,
                KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0, InputDevice.SOURCE_KEYBOARD));
        sendMediaKey(new KeyEvent(now, now, KeyEvent.ACTION_UP, keycode, 0, 0,
                KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0, InputDevice.SOURCE_KEYBOARD));
private voidrunListSessions()

        System.out.println("Sessions:");
        try {
            List<IBinder> sessions = mSessionService
                    .getSessions(null, ActivityManager.getCurrentUser());
            for (IBinder session : sessions) {

                ISessionController controller = ISessionController.Stub.asInterface(session);
                if (controller != null) {
                    try {
                        System.out.println("  tag=" + controller.getTag()
                                + ", package=" + controller.getPackageName());
                    } catch (RemoteException e) {
                        // ignore
                    }
                }
            }
        } catch (Exception e) {
            System.out.println("***Error listing sessions***");
        }
private voidrunMonitor()

        String id = nextArgRequired();
        if (id == null) {
            showError("Error: must include a session id");
            return;
        }
        boolean success = false;
        try {
            List<IBinder> sessions = mSessionService
                    .getSessions(null, ActivityManager.getCurrentUser());
            for (IBinder session : sessions) {
                ISessionController controller = ISessionController.Stub.asInterface(session);
                try {
                    if (controller != null && id.equals(controller.getTag())) {
                        ControllerMonitor monitor = new ControllerMonitor(controller);
                        monitor.run();
                        success = true;
                        break;
                    }
                } catch (RemoteException e) {
                    // ignore
                }
            }
        } catch (Exception e) {
            System.out.println("***Error monitoring session*** " + e.getMessage());
        }
        if (!success) {
            System.out.println("No session found with id " + id);
        }
private voidsendMediaKey(android.view.KeyEvent event)

        try {
            mSessionService.dispatchMediaKeyEvent(event, false);
        } catch (RemoteException e) {
        }