/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package hello;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
/**
* @author cinthia
*/
public class HelloMIDlet extends MIDlet implements CommandListener {
private boolean midletPaused = false;
//
private Command exitCommand;
private Form form;
private StringItem stringItem;
//
/**
* The HelloMIDlet constructor.
*/
public HelloMIDlet() {
}
//
//
//
/**
* Initializes the application. It is called only once when the MIDlet is
* started. The method is called before the
*
startMIDlet method. */
private void initialize() {
// write pre-initialize user code here
// write post-initialize user code here
}
//
//
/**
* Performs an action assigned to the Mobile Device - MIDlet Started point.
*/
public void startMIDlet() {
// write pre-action user code here
switchDisplayable(null, getForm());
// write post-action user code here
}
//
//
/**
* Performs an action assigned to the Mobile Device - MIDlet Resumed point.
*/
public void resumeMIDlet() {
// write pre-action user code here
// write post-action user code here
}
//
//
/**
* Switches a current displayable in a display. The
*
display instance is taken from *
getDisplay method. This method is used by all actions in the * design for switching displayable.
*
* @param alert the Alert which is temporarily set to the display; if
*
null, then *
nextDisplayable is set immediately * @param nextDisplayable the Displayable to be set
*/
public void switchDisplayable(Alert alert, Displayable nextDisplayable) {
// write pre-switch user code here
Display display = getDisplay();
if (alert == null) {
display.setCurrent(nextDisplayable);
} else {
display.setCurrent(alert, nextDisplayable);
}
// write post-switch user code here
}
//
//
/**
* Called by a system to indicated 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) {
// write pre-action user code here
if (displayable == form) {
if (command == exitCommand) {
// write pre-action user code here
exitMIDlet();
// write post-action user code here
}
}
// write post-action user code here
}
//
//
/**
* Returns an initialized instance of exitCommand component.
*
* @return the initialized component instance
*/
public Command getExitCommand() {
if (exitCommand == null) {
// write pre-init user code here
exitCommand = new Command("Exit", Command.EXIT, 0);
// write post-init user code here
}
return exitCommand;
}
//
//
/**
* Returns an initialized instance of form component.
*
* @return the initialized component instance
*/
public Form getForm() {
if (form == null) {
// write pre-init user code here
form = new Form("Bienvenido", new Item[]{getStringItem()});
form.addCommand(getExitCommand());
form.setCommandListener(this);
// write post-init user code here
}
return form;
}
//
//
/**
* Returns an initialized instance of stringItem component.
*
* @return the initialized component instance
*/
public StringItem getStringItem() {
if (stringItem == null) {
// write pre-init user code here
stringItem = new StringItem("Hola", "Mi nombre es Victor Barrera Tec");
// write post-init user code here
}
return stringItem;
}
//
/**
* Returns a display instance.
*
* @return the display instance.
*/
public Display getDisplay() {
return Display.getDisplay(this);
}
/**
* Exits MIDlet.
*/
public void exitMIDlet() {
switchDisplayable(null, null);
destroyApp(true);
notifyDestroyed();
}
/**
* Called when MIDlet is started. Checks whether the MIDlet have been
* already started and initialize/starts or resumes the MIDlet.
*/
public void startApp() {
if (midletPaused) {
resumeMIDlet();
} else {
initialize();
startMIDlet();
}
midletPaused = false;
}
/**
* Called when MIDlet is paused.
*/
public void pauseApp() {
midletPaused = true;
}
/**
* Called to signal the MIDlet to terminate.
*
* @param unconditional if true, then the MIDlet has to be unconditionally
* terminated and all resources has to be released.
*/
public void destroyApp(boolean unconditional) {
}
}
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