Examples of javax.microedition.media.Control

javax.microedition.media.Control

A Control object is used to control some media processing functions. The set of operations are usually functionally related. Thus a Control object provides a logical grouping of media processing functions.

Controls are obtained from Controllable. The Player interface extends Controllable. Therefore a Player implementation can use the Control interface to extend its media processing functions. For example, a Player can expose a VolumeControl to allow the volume level to be set.

Multiple Controls can be implemented by the same object. For example, an object can implement both VolumeControl and ToneControl. In this case, the object can be used for controlling both the volume and tone generation.

The javax.microedition.media.control package specifies a set of pre-defined Controls. @see Controllable @see Player

    /**
     * Override doGetControl
     * return VideoControl and GUIControl
     */
    protected Control doGetControl(String type) {
        Control c = super.doGetControl(type);


        if (c == null) {
            String prefix = "javax.microedition.media.control.";
            if (type.equals(prefix + vicName)) {        // VideoControl
                return this;

            final StreamingBufferControl sbc =
                    (StreamingBufferControl) player
                            .getControl("net.rim.device.api.media.control.StreamingBufferControl");
            sbc.setBufferTime(0);


            Control control = player.getControl("VolumeControl");
            if (control instanceof VolumeControl) {
                final VolumeControl volumeControl = (VolumeControl) control;
                _handler.setVolumeController(volumeControl);


                // Unmute the application on the assumption that if the user

Examples of javax.microedition.media.Control

Related Classes of javax.microedition.media.Control