Blackberry JAVA DEVELOPMENT ENVIRONMENT - - CRYPTOGRAPHIC SMART CARD DRIVER - DEVELOPMENT GUIDE Anleitung zur Fehlerbehebung PDF herunterladen (Seite 161)

161

10: Using the messages application

Send a message with an attachment

Retrieve information about the

attachment.

> Invoke the methods of the SupportedAttachmentPart class. The

SupportedAttachmentPart class represents an attachment with a corresponding viewer on

the BlackBerry® device. An

UnsupportedAttachmentPart represents an attachment that

does not have a viewer on the BlackBerry device.

public void run(Message m, SupportedAttachmentPart p) {

...

String name = p.getName();

int size = p.getSize();

}

Task Steps

Create a multipart message.

> Create a new Multipart object.

byte[] buf = new byte[256]; // The attachment.

MultiPart multipart = new MultiPart(); // Default type of multipart/

mixed.

Create each component of the

attachment.

>Create a SupportedAttachmentPart object, designating the Multipart object as its

parent.

SupportedAttachmentPart attach = new SupportedAttachmentPart(

multipart, "application/x-example", "filename", data);

Add each SupportedAttachmentPart

object to the multipart object.

>Invoke addBodyPart(SupportedAttachmentPart) on that object.

multipart.addBodyPart(attach); // Add the attachment to the multipart.

Set the content of the attachment. >Invoke setContent(Multipart) on the Message object and pass in the Multipart

object as its parameter.

msg.setContent(multipart);

Send the message. >Invoke Transport.send().

Transport.send(msg);

Task Steps

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Blackberry JAVA DEVELOPMENT ENVIRONMENT - - CRYPTOGRAPHIC SMART CARD DRIVER - DEVELOPMENT GUIDE Anleitung zur Fehlerbehebung Seite 161