dialermidlet.java

这是一个很小的手机应用程序源代码 可以用来查看手机电话本等

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.io.*;

/*******************************************************************************
 * Description: This is a sample application to demonstrate the usage of
 * the TextField.PHONENUMBER and the platformRequest("tel:"+phoneNumber).
 * Editing the phone number should also allow the user to select
 * a number from the mobile phone book.
 *
 * File: DialerMIDlet.java
 *
 * Created by: Philippe Villeneuve for SonyEricsson
 *
 * COPYRIGHT All rights reserved Sony Ericsson Mobile Communications AB 2003.
 *
 * The software is the copyrighted work of Sony Ericsson Mobile Communications AB.
 * The use of the software is subject to the terms of the end-user license
 * agreement which accompanies or is included with the software. The software is
 * provided "as is" and Sony Ericsson specifically disclaim any warranty or
 * condition whatsoever regarding merchantability or fitness for a specific
 * purpose, title or non-infringement. No warranty of any kind is made in
 * relation to the condition, suitability, availability, accuracy, reliability,
 * merchantability and/or non-infringement of the software provided herein.
 ******************************************************************************/

public class DialerMIDlet extends MIDlet implements CommandListener {
  Form dialerForm;
  Display display;
  Command dialCommand = new Command("Call", Command.OK, 2);
  Command exitCommand = new Command("Exit", Command.EXIT, 1);
  TextField phoneNumber;
  
  public DialerMIDlet() {
    try {
      phoneNumber = new TextField("Phone #", "", 20, TextField.PHONENUMBER);
/*
 * The same line as the precedent, but this time pre-initialised. This way, the 
 * use may avoid re-typing the same string as (s)he test the application. For the
 * purpose of this code sample, it is better not to feed a phone number as the
 * user may not notice that when the field is empty, the application propose to 
 * read from the phone book.
 *
 *    phoneNumber = new TextField("Phone #", "0731112222", 20, TextField.PHONENUMBER);
 */      
    }
    catch (IllegalArgumentException exp) {
      System.out.println("Misformed phone number.");
    }
    display = Display.getDisplay(this);
  }
  
  public void startApp() {
    if (dialerForm == null) {
      dialerForm = new Form("Dialer");
      dialerForm.addCommand(exitCommand);
      dialerForm.addCommand(dialCommand);
      dialerForm.setCommandListener(this);
      dialerForm.append(phoneNumber);
    }
    display.setCurrent(dialerForm);
  }
  
  public void pauseApp() {}
  public void destroyApp(boolean unconditional) {}
  
  public void commandAction(Command c, Displayable s) {
    if (c == exitCommand) {
      destroyApp(false);
      notifyDestroyed();
    }
    if (c == dialCommand) {
      try {
        platformRequest("tel:"+phoneNumber.getString());
      }
      catch (ConnectionNotFoundException exp) {
        // This occur if the device does not support this type of operation.
        System.out.println("Error calling.");
      }
    }
  }
}