Blackberry JAVA DEVELOPMENT ENVIRONMENT - - RELEASE NOTES Manual do Utilizador descarregar pdf (Página 11)

Item Description

• Statement features values binding after it has been prepared. You can use the

execute() method for statements such as INSERT, DELETE, UPDATE. You can use

the getCursor() method for query statement such as SELECT.

• Cursor provides iterative operations on the row set.

• Row provides data retrieval operations.

• BufferedCursor provides a means to cache data and access rows in random or

bidirectional manners.

• CursorEnumeration provides a simplified method of cursor navigation.

For more information on the SQLite API, see the BlackBerry Java Application SQLite

Development Guide.

Multimedia

Item Description

Bitmap Scale and Compare

API

You can scale and compare bitmaps using the Bitmap Scale and Compare API. Methods in the

net.rim.device.api.system.Bitmap class were updated and new APIs were added.

The updated methods provide functionality that include scaling of bitmaps, getting scaled

bitmap information, setting available filter types, and comparing bitmaps.

Enhanced Media Key Events BlackBerry device applications can now respond to key presses of media keys even when the

BlackBerry device application is in the background. This allows a BlackBerry device user to

control media playback using certain keys even while another BlackBerry device application

is in the foreground. This is done by implementing the new interface,

net.rim.device.api.media.MediaActionHandler, which defines a single

method boolean mediaAction(int action, int source, Object context). The

implementation is registered with the new method,

Application.addMediaActionHandler(MediaActionHandler handler).

After registration, the MediaActionHandler's method will be notified when certain keys

are pressed that correspond to media "actions", such as "volume up", "volume down", "next

track", "previous track", and "play/pause toggle". These notifications continue even when the

BlackBerry device application is in the background. For handling media key presses while the

BlackBerry device application is in the foreground, the new abstract class

net.rim.device.api.media.MediaKeyListener can be used.

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Blackberry JAVA DEVELOPMENT ENVIRONMENT - - RELEASE NOTES Manual do Utilizador Página 11