Namespaces

Variants
Actions

Please note that as of October 24, 2014, the Nokia Developer Wiki will no longer be accepting user contributions, including new entries, edits and comments, as we begin transitioning to our new home, in the Windows Phone Development Wiki. We plan to move over the majority of the existing entries over the next few weeks. Thanks for all your past and future contributions.

Revision as of 00:45, 28 October 2008 by hartti (Talk | contribs)

Making a phone call using TextField in Java ME

From Wiki
Jump to: navigation, search


Template:KBCS

Article Metadata

Overview

This snippet demonstrates how to make a phone call by using a TextField. The MIDlet constructs a phone number field and displays it on the screen. The user may enter a phone number into it or obtain one from the Contacts list. After that, he or she can select Options > Call to call that number.

Source

import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.TextField;
import javax.microedition.midlet.MIDlet;
public class ExampleMIDlet extends MIDlet implements CommandListener {
private Command exitCommand;
private Form mainForm;
 
/**
* Constructor. Constructs the object and initializes displayables.
*/

public ExampleMIDlet() {
mainForm = new Form("ExampleMIDlet");
 
// Create a phone number field, which allows a call to be made
mainForm.append(new TextField("Phone number", null, 20,
TextField.PHONENUMBER));
 
exitCommand = new Command("Exit", Command.EXIT, 0);
mainForm.addCommand(exitCommand);
mainForm.setCommandListener(this);
}
 
/**
* Called when the MIDlet is started.
*/

public void startApp() {
Display.getDisplay(this).setCurrent(mainForm);
}
 
// Other inherited methods omitted for brevity
// ...
 
/**
* From CommandListener.
* Called by the system to indicate that a command has been invoked on a
* particular displayable.
* @param command the command that was invoked
* @param displayable the displayable where the command was invoked
*/

public void commandAction(Command command, Displayable displayable) {
if (command == exitCommand) {
// Exit the MIDlet
destroyApp(true);
notifyDestroyed();
}
}

Postconditions

A phone number field is displayed on the screen. The user can enter a phone number and select Options > Call to call that number.

See also

237 page views in the last 30 days.

Was this page helpful?

Your feedback about this content is important. Let us know what you think.

 

Thank you!

We appreciate your feedback.

×