[Biz]

Hi there,

I created an application with 2 midlets, MIDlet_1 and MIDlet_2 in a midlet suite. MIDlet_1 triggers MIDlet_2(which plays some music) at a certain time set in MIDlet_1.

I installed my application in a Phone.

However, when I open the application, and when I choose MIDlet_1, 1st it goes out of the application for a few secs and then only enters MIDlet_1.

Would anyone kindly tell me why that happens and why can't it go directly to MIDlet_1?

If I create I MIDlet and a simple class and not a midlet for MIDlet 2, I have no such problem. But in that case I cannot automate MIDlet_2.

Is it because the vendor of my application is unknown? Any solutions to this problem.

Any kind of response is welcome.

[raj_J2ME]

Hi Biz,
Where are you actually calling the midlet-2,inside the midlet-1?
Please explain the same much more details.Are the both midlet in same midlet suite?

[ansh.chauhan]

Originally Posted by Biz

Hi there,

I created an application with 2 midlets, MIDlet_1 and MIDlet_2 in a midlet suite. MIDlet_1 triggers MIDlet_2(which plays some music) at a certain time set in MIDlet_1.

I installed my application in a Phone.

However, when I open the application, and when I choose MIDlet_1, 1st it goes out of the application for a few secs and then only enters MIDlet_1.

Would anyone kindly tell me why that happens and why can't it go directly to MIDlet_1?

If I create I MIDlet and a simple class and not a midlet for MIDlet 2, I have no such problem. But in that case I cannot automate MIDlet_2.

Is it because the vendor of my application is unknown? Any solutions to this problem.

Any kind of response is welcome.

It seem to me really confusing please express it in little bit better way.

[sharvan1981]

Originally Posted by Biz

Hi there,

I created an application with 2 midlets, MIDlet_1 and MIDlet_2 in a midlet suite. MIDlet_1 triggers MIDlet_2(which plays some music) at a certain time set in MIDlet_1.

I installed my application in a Phone.

However, when I open the application, and when I choose MIDlet_1, 1st it goes out of the application for a few secs and then only enters MIDlet_1.

Would anyone kindly tell me why that happens and why can't it go directly to MIDlet_1?

If I create I MIDlet and a simple class and not a midlet for MIDlet 2, I have no such problem. But in that case I cannot automate MIDlet_2.

Is it because the vendor of my application is unknown? Any solutions to this problem.

Any kind of response is welcome.

plz explain your problem.

[grahamhughes]

Originally Posted by Biz

MIDlet_1 triggers MIDlet_2

How does this happen?

You are not allowed to do this:

MIDlet mid2 = new MIDlet_2();
mid2.startApp();

Only the application manager can create MIDlet objects.

If you are trying to use registerAlarm(), remember that your device might not be able to run two MIDlets at the same time, so running MIDlet_1 will prevent MIDlet_2 from starting.

Graham.

[jitu_goldie]

Originally Posted by Biz

Hi there,

I created an application with 2 midlets, MIDlet_1 and MIDlet_2 in a midlet suite. MIDlet_1 triggers MIDlet_2(which plays some music) at a certain time set in MIDlet_1.

I installed my application in a Phone.

However, when I open the application, and when I choose MIDlet_1, 1st it goes out of the application for a few secs and then only enters MIDlet_1.

Would anyone kindly tell me why that happens and why can't it go directly to MIDlet_1?

If I create I MIDlet and a simple class and not a midlet for MIDlet 2, I have no such problem. But in that case I cannot automate MIDlet_2.

Is it because the vendor of my application is unknown? Any solutions to this problem.

Any kind of response is welcome.

How are u invoking the midlet2 :
1. with the help of Push registry , or
2. by making an object of another midlet ie midlet2.

Please mention ur problem in detail..
or post ur code for both midlet1 and midlet2.

[Biz]

Hello Everyone,

Thank you for your kind responses and sorry for not being able to explain my problem well. I will try to do it again.

I am trying to use registerAlarm() method in push registry API to triger Alarm MIDlet through Pust MIDlet where I set the time for the Alarm. Alarm MIDlet uses class SoundPlayer to play and stop the music.

Push MIDlet

import java.util.Date;

import javax.microedition.io.PushRegistry;
import javax.microedition.lcdui.Alert;
import javax.microedition.lcdui.AlertType;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.DateField;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.Item;
import javax.microedition.lcdui.ItemStateListener;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

/**
 * Push MIDlet automates the Alarm MIDlet
 */
public class Push extends MIDlet implements ItemStateListener,CommandListener {

	private Display display; // Reference to display object
	private Form form; // The main form
	private Command cmAlarm; // Start the timer
	private Command cmReset; // Reset to current date/time

	private DateField dfAlarmTime; // How long to sleep
	private Date currentTime; // Current time...changes when pressing reset
	private boolean dateOK = false; // Was the user input valid?



	public Push() {
		System.out.println( "Push: constructor" );

		display = Display.getDisplay(this);

		// The main form
		form = new Form("Set Alarm");

		// Save today's date
		currentTime = new Date();

		// DateField with todays date as a default

		dfAlarmTime = new DateField("", DateField.DATE_TIME);
		dfAlarmTime.setDate(currentTime);

		// All the commands/buttons
		cmAlarm = new Command("Save", Command.SCREEN, 1);
		cmReset = new Command("Reset", Command.SCREEN, 1);


		// Add to form and listen for events
		form.append("Set Date and Time\n");
		form.append(dfAlarmTime);
		form.addCommand(cmAlarm);
		form.addCommand(cmReset);

		form.setCommandListener(this);
		form.setItemStateListener(this);
		display.setCurrent(form);
	}


	public void startApp() throws MIDletStateChangeException{

		System.out.println( "Push: startApp" );


		System.out.println( "Push: startApp: return" );

	}

	
	public void pauseApp() {
		System.out.println( "Push: pauseApp" );
	}

	
	public void destroyApp( boolean unconditional ) {
	}

	public void itemStateChanged(Item item) {
		if (item == dfAlarmTime) {
		
			if (dfAlarmTime.getDate().getTime() < currentTime.getTime())
				dateOK = false;
			else
				dateOK = true;
		}
	}

	public void commandAction(Command c, Displayable s) {
		if (c == cmAlarm) {

			if (dateOK == false) {
				Alert al = new Alert("Unable to set alarm","Please choose another date and time.", null, null);
				al.setTimeout(Alert.FOREVER);
				al.setType(AlertType.ERROR);
				display.setCurrent(al);
			} else {
				long amount = dfAlarmTime.getDate().getTime() - currentTime.getTime()-10000;
				System.out.println( "aaa"+amount+"\n" );
				scheduleMIDlet(amount);		
				System.out.println( "Push: destroyApp" );
				destroyApp(false);
				notifyDestroyed();
			}
		} else if (c == cmReset) {
			// Reset to the current date/time
			dfAlarmTime.setDate(currentTime = new Date());
		} 
	}

	private void scheduleMIDlet (long delt)
	{
		System.out.println( "Inside Scheduler\n" );
		System.out.println( "aaa"+delt+"\n" );
		try {

			Date	now	= new Date();

			PushRegistry.registerAlarm("Alarm", now.getTime() + delt);

		} catch ( java.lang.ClassNotFoundException cnf ) {
			System.out.println( "Push: Class not Found" );
		} catch ( javax.microedition.io.ConnectionNotFoundException connnf ) {
			System.out.println( "Push: Connection Not Found" );
		}

	}


}

Alarm MIDlet

import java.util.Date;

import javax.microedition.midlet.*;
import javax.microedition.io.PushRegistry;
import javax.microedition.lcdui.*;
 
public class Alarm extends MIDlet implements CommandListener{
	private Display display; // Reference to display object
	private Form form; // The main form
	private Ticker t; 
	private Image image;
	private ImageItem img;
	
	private Command cmExit; // Exit Appli
	private Command cmStop; // Stop Alarm
	private SoundPlayer soundPlayer = new SoundPlayer();
	
	public Alarm(){
		
		display = Display.getDisplay(this);
		form = new Form("");
		
		t = new Ticker ("★　Rise and Shine　★");
		form.setTicker (t);
		
		image = null;
		try { image = Image.createImage("/bell.png");
		}catch (Exception e){
		}
		img = new ImageItem("",image ,Item.LAYOUT_2|Item.LAYOUT_CENTER|Item.LAYOUT_VCENTER,"",Item.PLAIN );
		form.append(img);
		
		cmExit = new Command("Exit", Command.EXIT, 1);
	    cmStop = new Command("Stop", Command.SCREEN, 1);
	    form.addCommand(cmExit);
        form.addCommand(cmStop);
        form.setCommandListener(this);
        
		display.setCurrent(form);
		soundPlayer.playsound("Play");
	}

	protected void destroyApp(boolean unconditional) throws MIDletStateChangeException {
		// TODO Auto-generated method stub
		
	}

	protected void pauseApp() {
		// TODO Auto-generated method stub
		
	}

	protected void startApp() throws MIDletStateChangeException {
		// TODO Auto-generated method stub
		
	}

	public void commandAction(Command c, Displayable arg1) {
		// TODO Auto-generated method stub
		if (c == cmExit) {
            try {
            	soundPlayer.playsound("Stop");
            	destroyApp(false);
				
			} catch (MIDletStateChangeException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
            notifyDestroyed();
        } else if (c == cmStop){
        	soundPlayer.playsound("Stop");
		} 
	}
	
	
	
}

SoundPlayer

import java.io.InputStream;

import javax.microedition.media.Manager;
import javax.microedition.media.Player;

/*This is a class that plays music for Alarm*/

public class SoundPlayer {

    public Player  player;
    public InputStream in= null;
        
    
    public SoundPlayer() {        
        try {   
        	in = getClass().getResourceAsStream("/Shuffle A-Tak_2-01.mp3");
            player=Manager.createPlayer(in,"audio/mpeg");
            player.prefetch();
        } catch (Exception e) {
            e.printStackTrace();
        }
}
    public void playsound(String playtype) {
        
    	//Play
    	if (playtype.compareTo(new String("Play")) == 0) {
    		try {

    			player.start();
    		} catch (Exception e) {
    			System.out.println("xxxxxxxxxxS");
    			e.printStackTrace();
    		}  
    	}
       
        
       //Stop
        if (playtype.compareTo("Stop") == 0) {   
       	 try {
                player.stop();
                player.setMediaTime(0);
                System.out.println("!!!!!!!!!!!!!!!");
            } catch (Exception e) {
           	 System.out.println("!!!!!!!!!!!!!!!***********");
           	 e.printStackTrace();
            }  	
       }        
    }     
}

The JAD file looks like this:

MIDlet-1: Push,,Push
MIDlet-2: Alarm,,Alarm
MIDlet-Jar-Size: 412205
MIDlet-Jar-URL: Push_Registry1.jar
MIDlet-Name: Push Registry1 Midlet Suite
MIDlet-Permissions: javax.microedition.io.PushRegistry
MIDlet-Vendor: Midlet Suite Vendor
MIDlet-Version: 1.0.0
MicroEdition-Configuration: CLDC-1.1
MicroEdition-Profile: MIDP-2.0

After I install the application (Push Registry MIDlet Suite with 2 midlets and 1 class) to the phone, when I try to start it from the place where I saved,
It shows 2 selection Menu,
1.Push
2.Alarm

When I select Push I expect it to enter to the Push MIDlet where I can do the Alarm Setting, however 1st it goes back to the place where the application is stored and then only enters the Push MIDlet. This will definately confuse the 1st time user. Is it because the MIDlet vendor is unknown?

Am I clear this time?

Hoping to get responses.

Regards:)

[raj_J2ME]

After I install the application (Push Registry MIDlet Suite with 2 midlets and 1 class) to the phone, when I try to start it from the place where I saved,
It shows 2 selection Menu,
1.Push
2.Alarm

I must say that you are using the s60 devices for the testing.This series devices display the same like the above quoted line,

When I select Push I expect it to enter to the Push MIDlet where I can do the Alarm Setting, however 1st it goes back to the place where the application is stored and then only enters the Push MIDlet. This will definately confuse the 1st time user. Is it because the MIDlet vendor is unknown?

About the red lines,I am not sure.Could you please explain the same,

[jitu_goldie]

After I install the application (Push Registry MIDlet Suite with 2 midlets and 1 class) to the phone, when I try to start it from the place where I saved,
It shows 2 selection Menu,
1.Push
2.Alarm

When I select Push I expect it to enter to the Push MIDlet where I can do the Alarm Setting, however 1st it goes back to the place where the application is stored and then only enters the Push MIDlet. This will definately confuse the 1st time user. Is it because the MIDlet vendor is unknown?

Am I clear this time?

Hoping to get responses.

what do u mean by that?
May be ur problem is two midlets shown at the menu of device and may be u r confuse to choose the right midlet to enter the application. Is it so?

[raj_J2ME]

Hi,
Jitu read his post,and check the midlet flow,he is selecting the correct midlet,

[ansh.chauhan]

HI raj
But what he want to do it hard to understand.
hey buddy what exactly you want tell us

[jitu_goldie]

Originally Posted by raj_J2ME

Hi,
Jitu read his post,and check the midlet flow,he is selecting the correct midlet,

Im just guessing the problem of original poster. Im not quite able to understand his problem that's why im just asking him.

[raj_J2ME]

Originally Posted by ansh.chauhan

HI raj
But what he want to do it hard to understand.
hey buddy what exactly you want tell us

Hi,
I recommend that you should also read the post by scrolling down the page,this is all explained in the post 1 of this thread.

But what he want to do it hard to understand.

If you will read the post carefully then you will understand the same.

[Biz]

Hello Everyone again,

Lets say I stored Push Registry with many other application (Alarm, Calendar, Timer, Sudoku), I cannot show how the screen on phone exaclty looks like, but I will simply "draw" screen transition diagram by words here.

1)Press Application folder : The screen looks like below:

Application
Push Registy MIDlet Suite
Alarm
Calendar
Timer
Sudoku

2) Press Pust Registry MIDlet Suite : The screen looks like below:

Push Registy MIDlet Suite
Alarm
Push

3) Press Push : The screen looks like below, 1st it goes to screen "a" for 2 sec and then only moves to screen "b"

a)
Application
Push Registy MIDlet Suite
Alarm
Calendar
Timer
Sudoku

b)
Set Alarm
Set Date and Time
03-Jul-09
15:08:00

My problem is, in No.3 when I press Push i want to go directly to screen "b".

I am sorry but, this is the best I can explain:(

I hope it is clear this time

Regards

P.S: Please address me with a "she"

[grahamhughes]

Hello!!

I understand now.

You go to the "application menu", where you see a list of MIDlet suites (JAR files). Then you select your suite. Because your suite has two MIDlets, you next see a list of MIDlets in the suite. You select a MIDlet, and you (briefly) see the "application menu" again, before the application starts. Is that correct?

To some extent, this is a function of the device. There may be nothing you can do about it.

It is important to keep the amount of code in the MIDlet constructor, in static initializers, and in the startApp() method, to a minimum. Reducing the amount of code that is executed during start up may reduce the time. However, you don't appear to have much code.

One alternative is to have only one MIDlet. Unfortunately, there is no method to find out if the MIDlet was started from the menu, or by the Alarm. The best you can achieve it to store the registered alarm time in RMS and, at start up, check to see:

if (currentTime >= alarmTime && currentTime < (alarmTime + TIME_WINDOW_SIZE)) {
    // assume we were started by the alarm
} else {
    // assume we were started from the application menu
}

Where "TIME_WINDOW_SIZE" is some limit within which you expect the alarm to be trigered (say, five minutes). This is quite a clumsy mechanism, but there is no nice way.

Otherwise, I think you have to live with the application menu appearing for a moment. You will find that different devices will behave differently. What you are seeing is a quirk of that particular device.

Graham.