Blackberry JAVA DEVELOPMENT ENVIRONMENT - - GPS AND MAPS - DEVELOPMENT GUIDE Manual do Utilizador descarregar pdf (Página 23)

For RIM and BlackBerry partner use only. Beta documentation. Content and software are subject to change.

3: Displaying location information on a BlackBerry device

Open BlackBerry Maps to display the location for an address in the contact list

You can create a BlackBerry® Application that displays a map in BlackBerry Maps for the address of a contact in

the contact list. The address for the contact must be a valid address.

1. Import the javax.microedition.pim.PIM class and the javax.microedition.pim.Contact interface.

import javax.microedition.pim.PIM;

import javax.microedition.pim.Contact ;

2. Create a contact object.

Contact c = null;

3. In a try block, get the contact list.

try {

ContactList contactList = (ContactList)PIM.getInstance().openPIMList(PIM.CONTACT_LIST,

PIM.READ_WRITE);

4. Place the items from the contact list into an enumeration.

Enumeration enumContact = contactList.items();

int notFinished = 1;

5. Create a while loop to iterate through all the items in the enumeration.

while ((enumContact.hasMoreElements()) && ( notFinished == 1)) {

c = (Contact)enumContact.nextElement();

int[] fieldIds = c.getFields();

int id;

6. Search for the first contact with a valid city and region and display the address information for this contact in

BlackBerry® Maps.

if (c.countValues(Contact.ADDR) > 0) {

String address[] = c.getStringArray(Contact.ADDR,0);

if ((address[Contact.ADDR_LOCALITY] != null) && (address[Contact.ADDR_REGION]

!= null)) {

Invoke.invokeApplication(Invoke.APP_TYPE_MAPS, new MapsArguments(c,0));

notFinished = 0;

}

} catch (PIMException e) {

}

7. If a contact address is not found, display the default map in BlackBerry Maps.

if (c == null) {

Invoke.invokeApplication(Invoke.APP_TYPE_MAPS, new MapsArguments());

}

};

View a sample application that displays the location for an address in the address book

1. On a BlackBerry® device, open the address book.

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 29 30

Sem comentários

Blackberry JAVA DEVELOPMENT ENVIRONMENT - - GPS AND MAPS - DEVELOPMENT GUIDE Manual do Utilizador Página 23