Blackberry JAVA DEVELOPMENT ENVIRONMENT - - CRYPTOGRAPHIC SMART CARD DRIVER - DEVELOPMENT GUIDE Průvodce řešením problémů stáhnout pdf (Strana 55)

2: Using graphics and multimedia

Using rich media

Playing rich media content

To play rich media content, use the following classes:

• To retrieve .pme content from BlackBerry® devices or networks, use methods from the MediaManager class.

• To play .pme content that exists on BlackBerry devices, use methods from the MediaPlayer class.

Download rich media content

1. Create a MediaManager object.

2. Invoke MediaManager.createMedia().

The first time that you invoke MediaManager.createMedia(), the URL must be absolute, unless you first

invoke

MediaManager.setProperty(“URI_BASE”, <base_url>) to set a base URL. When you invoke

createMedia() subsequently, the URL that the method used previously is the base.

MediaManager manager = new MediaManager();

try {

Object media = manager.createMedia("http://webserver/sample.pme");

} catch (IOException ioe) {

System.out.println("Error: requested content was not downloaded.");

} catch (MediaException me) {

System.out.println("Error: “ + me.getCode()); }

Play rich media content

Send a media player event to

a registered player listener.

>Invoke playerUpdate(Player player, String event, Object eventData).

public void playerUpdate(Player player,String event, Object eventData)

{// Release resources

player.close();

if ( event == PlayerListener.END_OF_MEDIA )

// Add code for actions if the end of media is reached.

}

Task Steps

Set the .pme object for

playback.

>Invoke MediaPlayer.setMedia().

MediaPlayer player = new MediaPlayer();

try {

player.setMedia(media);

} catch (MediaException me) {

System.out.println("Error: requested content type is not supported.”);

}

Task Steps

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Blackberry JAVA DEVELOPMENT ENVIRONMENT - - CRYPTOGRAPHIC SMART CARD DRIVER - DEVELOPMENT GUIDE Průvodce řešením problémů Strana 55