Running on UiApplication or Midlet?

Hi all

I'm developing a blackberry app that has a midlet project alternative auto start (to set the icon overview)

I added a listener in the auto startup project

in the listener, I need to know if my UiApplication runs so push a pop-up screen.

on the other

Add text to the persistent object.

My problem is now how do I know that the GUI application is running and so basically put on the map and display the message

I initialized the listener and he started on the midlet but want to show messages directly if the Uiapplication operation.

Help, please.

Sorry it's

getVisibleApplications

Tags: BlackBerry Developers

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UiApplication.getEventLock () while alread in case of discussion?

Hi people,

I have a busy indicator, which is sometimes called from threads of the event and sometimes by background threads.

Question: Although the extreme example below seems to work, does anyone know of an official RIM statement on the call of the lock of the event from somewhere that happens so that the event thread (as when a user presses a button)?

Extreme example to get the lock event while in the wire of the event

UiApplication.getUiApplication () .invokeLater (new Runnable() {}
public void run() {}
{Synchronized (UiApplication.getEventLock ())}

SOME WORK

}

}
});

Thank you

I think that it is harmless to synchronize the lock of the event when already on the thread of the event. However, you can always check by using Application.isEventDispatchThread () (or Application.isEventThread (), if you have a ref for instance practice).

BBM BasicMessageListManager disappears when I open the menu screen

Hello

I'm trying to integrate my application with the blackberry messaging platform. for this I use the SDK of BBM. I use a custom desktop to display messages. This screen contains a BasicReplyFieldManager defined as the State of the screen and a BasicMessageListManager that is added as a child of the live screen. This medication is ok, as long as I don't have to open the menu screen. By example, if I override the keyChar method to add messages to the BasicMessageListManager everything is ok. If, on the other hand, I use a menu option to do this, as soon as I open the menu, the BasicMessageListManager disappears. During debugging, I discovered that the BasicMessageListManagerof the Manager is set to null. That's why it disappears. The response of field does ' t disappear because it is in the State. If I put it in a BottomUpManager for example they both disappear.

If someone has encountered this? or did someone knows how to get around this problem?

Here is the code I use:
```
replyField=new ReplyField();

smilyBtn=new SmileyButton();
smilyBtn.setClickRunnable(new Runnable() {
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        synchronized (UiApplication.getEventLock()) {
            SmileyScreen scr=new SmileyScreen();
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});
replyMgr=new BasicReplyFieldManager(replyField, smilyBtn);

messageMgr=new BasicMessageListManager(0,
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        MessageListManager.MESSAGE_STYLE_SHOW_SENDER_DISPLAY_NAME,
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messageMgr.toggle();
BottomUpManager mgr=new BottomUpManager();
mgr.add(messageMgr);
mgr.add(replyMgr);
add(mgr);
```
to add messages, I use this
```
MessageSender ms=new MessageSender("Me");
TextMessage tm=new TextMessage(message, ms);
OutgoingTextMessageField out=new OutgoingTextMessageField(tm);
messageMgr.addMessage(out);
```
Thank you.

found the answear. It had nothing to do with the BBM SDK classes.

I turns out I have outweigh the makeMenu method in the class of the screen and there I called menu.deleteAll. Once I removed this line everything was ok.

Priority of the global screen

Hi, when I'm working in applications, I face a problem that I can't solve. Where can I find comprehensive screen priority. This is because I want my screen is display (when the application is light) on top of any customer get any message or call for the customer using my software.

Thank you

I'm not aware of any documentation regarding the priority of the RIM screens. However, I know that some of them use ve numbers - and no matter what you are coding, some screens from RIM will always display on top of yours.

You will also find global screens have a number of restrictions regarding what you can do with them, for example to display the Menus behind the global screens. Therefore tried to use global screens to develop your application might make this a bit difficult development.

If you think that can override disable, and in it, do something like

UiApplication.getUiApplication () .invokeLater (new Runnable() {}

public void run() {}

UiApplication.getUiApplciation () .requestForeground ();

}

});

which should display your screen on top of the application that has been brought forward.

That said, I think that it is dangerous to play with the way the Blackberry works like this. I would look for another option.

Problems with the Java Extensions and new SDK 1.5

Hello

I had built a Java Extension with version 1.0 update modifing WidgetConfigImpl.java as PDF attached. And I was running properly.

Now, with the 1.5 SDK don't work and Java not return a warning or an error.

I have tried otherwise, generating a .jar and include it in the file ext with eclipse, but do not show the .jar in Add dialog, this same problem occurred at 1.0 and I solved adding that the Java plug-in with the attached PDF file.

Y at - it new path by adding the extension modifing WidgetConfigImpl.java or something similar?

Why anti-pop immediately following pushScreen in your code? I don't even know what that would do, but there is a good chance that it will never show your screen.

This does not work for the screen display? Generally speaking, you would record your screen as a listener for an event and close the form this way, right?
```
UiApplication.getUiApplication().invokeLater(new Runnable() {    public void run() {        try {            UiApplication.getUiApplication().pushScreen(_screen);        } catch (MediaException e) {             Dialog.alert("Error: " + e.getMessage());        }    }});
```

How to call BlackBerryContactList.choose () of the background application

I am facing a problem while call BlackBerryContactList.choose () to background application (process) nothing happens.

Below is the code

List of BlackBerryContactList = (BlackBerryContactList) PIM.getInstance () .openPIMList (PIM. CONTACT_LIST, PIM. READ_WRITE);
Choose PIMItem = list.choose ();

When you call a user interface application works well, but even does not work when the application background.

Please help me...

This dialog works separately from your Application. It is not actually a part of your Application. It is a Global screen. It works very well.

But to use the dialog to choose, I think you should return control in your application, and as you've found, I think that you need to bring your application to the foreground in order to ensure that he choose the dialog box is displayed. This means that you have to run a UiApplication, not a request.

To make sure that it can request not bought to the forefront accidentally, you can set acceptsForeground() to false.

But when you want to use the Choose dialog box, you will need to have this method returns true and then put your Application in the foreground. When you get the answer to choose, you can set it to false and again take your application in the background.

I suggest while you develop it you just create a UiApplication standard and make it work like that. Then try to simulate an application by adjusting the acceptsForeground() at the right times.

Since your application will in fact be a UiApplication, I suggest you have a too associated screen. A simple splash screen will do.

I hope this helps.

PS > there is a small chance that you can requestForeground on your Application when you call the method of choice and it appears. Try it. But I will not be surprised if it fails.

Download the image via httpConnection very slowly

I've been wroted a function to get a picture from the internet, the size of the image always in 50x50px, very small, but I have to waste a lot of time for reveiving given, here is my code:

package code;

import java.io.IOException;
import java.io.InputStream;

import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;

import net.rim.device.api.io.IOCancelledException;
import net.rim.device.api.io.IOUtilities;
import net.rim.device.api.ui.UiApplication;

public class HttpUtility
{
    private static byte[] _imageData;
    private static String _url;

    public static byte[] getInternetImage(String url, boolean waiting)
    {
        _url=url;
        _imageData=null;

        Runnable run=new Runnable()
        {
            public void run()
            {
                byte[] data=null;

                try {
                    HttpConnection httpConnection=(HttpConnection) Connector.open(_url+Function.updateConnectionSuffix());
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                    if(inputStream.available()>0)
                    {
                        data=IOUtilities.streamToBytes(inputStream);
                        inputStream.read(data);

                        _imageData=data;
                    }
                } catch(IOCancelledException e2) {Function.errorDialog(e2.toString());}
                  catch (IOException e) {Function.errorDialog(e.toString());}
            }
        };

        if(waiting)
        {
            UiApplication.getUiApplication().invokeAndWait(run);
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        return _imageData;
    }
}

The updateConnectionSuffix() to determine the network environment and choose a better way for httpConnection.

Is there a problem in my code? I have no idea

invokelater executes on the thread of the event, and not on a separate thread.
currently you block your UI until data is available.

See
http://supportforums.BlackBerry.com/T5/Java-development/what-is-the-event-thread/Ta-p/446865

Take a look at the httpdemo to see how you could do it better.

changes to the text of a Labelfield, although it is on diplay stack.

Hello

I have a TimerTask that modifies the text of a label at regular intervals field, but I get the IllegalStateException

can someone let me know where I'm going wrong? What stupid mistake I do?

/ public final class screen extends MyScreen
{
LabelField lbf;
/**
* Creates a new object of MyScreen
*/
public MyScreen()
{

setTitle ("MyTitle");

Timer t1 = new Timer();
T2 timer = new Timer();

double flow = 3600,0 / 3600;
Double total = 0.0;
final MyTimerTask mtask = new MyTimerTask (total rate);

LBF = new LabelField();

TimerTask tt = new TimerTask() {}
public void run() {}
System.out.println ("inside the timer task tt");
lbf.setText (Double.toString (mtask.getTotal ()));


}
};

T1.scheduleAtFixedRate (mtask, 0, 1000);
T2.scheduleAtFixedRate (tt, 0,1000);
Add (lbf);
}
}

Hi, Daniel

use UiApplication.getEventlock () by updating the user interface of the event no thread like this

TimerTask tt = new TimerTask() {}
public void run() {}
synchronized (UiApplication.getEventLock ())
{
System.out.println ("inside the timer task tt");
lbf.setText(""+i++);
}

}

Thank you.

How can I restart a TimerTask, I want to reuse an instance of TimerTask on click of a button

but I understand once you call it once that's all. That cannot be reused.

I get everything I try and reuse the same instance of TimerTask errors of State invalid, surely there must be a way to restart?

Hello

public class TimersThread
{
Minu private;
public TimersThread()
{
Timer = new Timer();
Timer.Schedule (new TimerTask() {}
public void run()
{
Synchronized (UiApplication.getEventLock ())
{
Timer.Cancel ();

}
}
(}, 1000);
}

Remove the screen on the menu Manager, click

Currently I have a screen, the user can bring up the menu and select an option that displays a series of buttons in a fieldmanager. It works very much like on click menu create and add buttons to the Manager then the screen. I want to do now is if the user selects an option in the menu to delete the buttons I'd remove the screen Manager. I'm trying to do the following (taken from another thread)
```
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                    public void run()
                    {
                        synchronized(UiApplication.getEventLock()){
                        delete(gridFieldManager);}
                     }
                 });
            }catch(Exception er){
                System.out.println(er);
            }
        }
    };
```
A mistake is not printed, but made a mistake. Is it possible to remove the handler in this way?

initialize in the constructor of your display manager, for example. Another option would be to return, but I prefer the first one for a better overview.

in your case:

declare the handler as a class variable in the class of your screen. initialize it in the constructor. Add and remove it from your menu methods.

a general Council: instead delete, you can use replace. at least if you use several insertion/removal routines you can lose the correct index quickly, and if you add a field then rewriting half of your code. for this reason I use a NullField who is not active, I add them to the places where I want to dynamically insert managers.

Update of the main screen to a background thread

Hi guys im trying to update the main screen from a background thread. in this case I'm using a 2 static pictures. Once I click on a butotn on the popupScreen when the application is loaded, it will update the image on the main screen.

I wrote a small excerpt for it and can you please give me some help with this. because when I've debugged and one of the developers helped me thereby to discover that the screen im trying to update is not the active screen. Please have alook please.ive extract have 3 classes here

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

SerializableAttribute public class MyApp extends UiApplication
{

Public Shared Sub main (String [] args)
{
Create a new instance of the application and make the currently
who runs the thread of the application of the event dispatch thread.
MyApp PAP = new MyApp();
theApp.enterEventDispatcher ();
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/**
* Creates a new object MyApp
*/
public MyApp()
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Push a screen onto the stack in the user interface for rendering.
pushScreen (new MyScreen());
final Pinpopup pp = new Pinpopup();

UiApplication.getUiApplication () .invokeLater (new Runnable()
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UiApplication.getUiApplication () .pushModalScreen (pp);
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}
}
////////////////////////////////////////////////////////////////////////////////////////

/ public final class screen extends MyScreen
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/**
* Creates a new object of MyScreen
*/
public Bitmap bmp image;
public BitmapField bmpField;
public ButtonField btnDisplay;
public ImageThread imgThread;

public MyScreen()
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Set the displayed title of the screen
setTitle ("MyTitle");
BMP = Bitmap.getBitmapResource ("image.png");
btnDisplay = new ButtonField ("Display");
bmpField = new BitmapField (bmp);

btnDisplay.setChangeListener (new FieldChangeListener() {}

' Public Sub fieldChanged (field field, int context) {}
TODO self-generating method stub

if(Field == btnDisplay)
{
BMP = Bitmap.getBitmapResource ("image1.png");
bmpField.setBitmap (bmp);
signInButtonClicked ("07760926037", "1234");
LaunchImageThread();

}
}
});

Add (bmpField);
Add (btnDisplay);

}


Public Sub LaunchImageThread()
{
imgThread = new ImageThread (this);
System.out.println ("THIS screen:" + this.getScreen ()); I realized that the im screen update is not active but its strange I don't create any other refrence so
New Thread (imgThread) m:System.NET.HttpListener.start ();
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// POPUPSCREEN CLASS
class Pinpopup extends PopupScreen //implements FieldChangeListener
{
private ButtonField btnOk;

Pinpopup()
{

Super (new HorizontalFieldManager());

btnOk = new ButtonField ("Sign In");

btnOk.setChangeListener (new FieldChangeListener() {}

' Public Sub fieldChanged (field field, int context)
{
TODO self-generating method stub
Try
{
if(Field == btnOK)
{
Close();
MyScreen ms = new MyScreen();
Mrs. LaunchImageThread();
}
} catch (IllegalArgumentException e) {}
TODO: handle exception
System.out.println ("Exception Popup all in signingIn" + e.getMessage ());
}
}
});

Manager fieldManagerContext = new Manager (USE_ALL_WIDTH)
{
' public void sublayout (int width, int height) {}

int xPos = 10;
int ypos = 40;

Field = getField (0);
layoutChild (field, 280, 50);
setPositionChild (field, xpos ypos + 100 + 165);

setPosition (300, 300);
setExtent (350, 225);
}
};

fieldManagerContext.add (btnOk);
Add (fieldManagerContext);
}
}

/////////////////////////////////////////////////////////////////////////////////////////////////////

/ public class ImageThread implements Runnable
{
private MyScreen parent;

public ImageThread (MyScreen myScreen)
{
parent = myScreen;
}

public void run()
{
Try
{
UiApplication.getUiApplication () .invokeLater (new Runnable() {}

public void run() {}
TODO self-generating method stub
System.out.println ("active screen:" + UiApplication.getUiApplication () .getActiveScreen ());
System.out.println ("active screen:" + parent.getScreen ());
parent.bmp = Bitmap.getBitmapResource ("image1.png");
parent.bmpField.setBitmap (parent.bmp);

}
});
}
catch (Exception ex)
{
System.out.println ("Exception in Thread:" + ex.getMessage ());
}
}
}

was soon thanks

I suspect that this is your problem:

MyScreen ms = new MyScreen();
Mrs. LaunchImageThread();

I suspect that if you did as I suggested on the other Thread and put a breakpoint in the constructor of MyScreen, you'd have foiund, this creates a second instance.

I hope that you can take it from here.

PopupScreen + LocationListener

I have tried to create a Popup (PopupScreen) that displays "search satellite...". "while I'm waiting for LocationListener to call. Once it is called, I put the location listener to null, and I try to fill the PopupScreen. No matter what I do I can't close. I get an IllegalStateException.

I looked in the forums, I've seen 100 threads that tell you how to do this, people link to these articles KB, but nothing works. I don't know if I'm just not thinking clearly, but I just can't understand it.

Basically... I'm trying to do something like:

screen = new PopupScreen(); pertend this is a message in it

UiApplication.getUiApplication () .pushScreen (form);

Critier criteria = new Criteria();

LocationProvider provider = new LocationProvider.getInstance (criteria);

provider.setLocationListener (new MyLocationListenerHere (this));

Then in my MyLocationListenerHere I want to lie...

MyLocationListener (form) {}

This.some_holder = screen;

}

{public locationUpdated Sub (LocationProvider provider, a place)

do things for contact information

UiApplication.getUiApplication () .popScreen (this.some_holder.screen);

}

IllegalStateException

Note: I just write this code now for this post, it gives you a good example of what I'm trying to do. If anyone can help me it would be GREATLY appreciated.

locationUpdated() runs as a background Thread. In my view, that it is running in your Application, just to get your pop on your event feed! Usually, it's pretty easy. Assuming this works, then that's all you need:

{public locationUpdated Sub (LocationProvider provider, a place)

Final anti-pop = this.some_holder.screen;

UiApplication.getUiApplication () .invokeLater (new Runnable() {}

public void run() {}

UiApplication.getUiApplication () .popScreen (anti-pop);

}

};

do things for contact information

}

This code is written from memory, not tested, but I hope that you can find in her compilation errors.

Let us know how you go.

Popupscreen comes up with a white screen around

Hey. Before the big screen my application opens, there is a small delay. My code below adds a progress bar w popupscreen, but how to get rid of the white background around him? I can add a screen and see homescreen around it, but not popupscreen. No field that I can find this style for the popupscreen. Yet to learn the technique

See you soon. Code below.


                                    synchronized(Application.getEventLock()){     

                        m_ui = Ui.getUiEngine();
                                            progressbar = new GaugeField("Welcome to SharpRSS!...", 0, 100, 33, GaugeField.NO_TEXT);
                                            progress = new PopupScreen(new FlowFieldManager());
                                            progress.add(progressbar);
                                            progress.doPaint();

                                            m_ui.pushGlobalScreen(progress, 1, UiEngine.GLOBAL_QUEUE);
                                    }

                                    OpeningProgressThread opt = new OpeningProgressThread();
                                    opt.start();

    static class OpeningProgressThread extends Thread {

            public void run() {

                                synchronized(UiApplication.getEventLock()){  

                                            globalStunningRSS.ShowHeadlineScreen();  //// opens app
                                            m_ui.popScreen(progress);
                                    }

            }

    }

Well, if you use UiEngine.getUiEngine, you can push an Application global screens.

Or you use UiApplication and standard pushScreen.

If you use the pushGlobalScreen from a UiApplication without a normal to push first screen, you will have a white background.

You can divide your application into an application and part of uiapplication. or a normal screen before displaying a popup (using uiapplication only). or use only global screens (by application only)

How to remove the Manager?

Hi, I had a verticalFieldManager:

_verticalFieldManager = new VerticalFieldManager (Manager.VERTICAL_SCROLL);

and want to remove it.

but:

Delete (_verticalFieldManager) does not work...

I also tried delete (_verticalFieldManager.getManager ()) , but also - without results

Is anyone of you know what is the problem?

Kind regards

I found a solution:
```
   UiApplication.getUiApplication().invokeLater(new Runnable()
                            {
         public void run()
          {
               synchronized(UiApplication.getEventLock()){
                   delete(_verticalFieldManager);

                                       }
                                 }
                            });
```
thx for your time and suggestions!

Kind regards

Save the PhoneListener and the FolderListener in a single application

If I'm around all blackberry applications, when I get a phone call, I'm able to display a popup once the call is answered for example. But if I get an email, I'm not able to display any popup screen, even if I see the messagesAdded() get me fired and also the popupscreen is invoked as I reinforced with debugging.

The mechanism that I use to view the popuscreen phone and Email is the same, but the event of phone works and not the event of enamel.

Here is what I do

AutoStart calls my main class

public final class myMain {}

{private myMain()
try {}
Phone.addPhoneListener (new ConcretePhoneListener());
Store is Session.waitForDefaultSession () .getStore ();.
store.addFolderListener (new ConcreteEmailListener());
}
catch (Exception e) {}
//
}
}

Public Shared Sub main (String [] args) {}
PAP PimAssistantMain = new PimAssistantMain();
}
}

In my ConcretePhoneListener(), this is how I invoke the popup screen

SerializableAttribute public class ConcretePhoneListener extends AbstractPhoneListener {}

private void somePrivateMethod() {}

UiApplication.getUiApplication () .invokeLater (new Runnable() {}
public void run() {}

UiApplication.getUiApplication () .pushScreen (new PhonePopupScreen());

}
});

}

}

the code above works, but

/ public class ConcreteEmailListener implements FolderListener {}

private void somePrivateMethod() {}

UiApplication.getUiApplication () .invokeLater (new Runnable() {}

public void run() {}

UiApplication.getUiApplication () .pushScreen (new EmailPopupScreen());

}

});

}

}

the above code IS NOT working for some reason any in the sense that, when new email arrives, I don't see the screen like the one for the phone, the event popup not.

In the EmailPopupScreen() and PhonePopupScreen(), I would go the PopupScreen and make sure that the screen is in the foreground by using the code below

protected void onObscured() {}
UiApplication.getUiApplication () .requestForeground ();
}

Can someone tell me first if I'm heading in the right direction and also explain this strange difference in the behavior for these 2 types of events and how the email event a popup screen

First off let me say that I have NOT actually tried a screen on an email listener, so this might not work, but I might be able to help.

First of all, to look for a couple of things

UiApplication.getUiApplication ()...

Do not forget that this gets a reference to the UiApplication who is running, not your application. So if you run in the earpiece of the phone you are running in the phone, in the listener of e-mail application, you run in the messaging application.

protected void onObscured() {}
UiApplication.getUiApplication () .requestForeground ();
}

onObscured is called when the screen is covered by another screen. If she does not, she will not be called. Assume its display, the screen masking came from the same application which displays on the screen, then the requestForeground() will not do anything, because the Application is always in the foreground. If the screen masking done from another application, then it is possible that this would actually hide the new screen. I think that's why do you afterwards.

These points side lets talk about why it works for the phone and not by e-mail. Easy, I think. The earpiece of the phone runs in the phone application, which of course is in the foreground when the phone is used. That means the app phone is to put in the background when it finishes. So if you press a screen in the foreground when executing the application phone will display, it could disappear - that's why I think that the use of the requestForeground() in the onObscured().

However, the messaging application works in the background at the time of the invocation of the listener. Thus, while pushing the screen won't get on the screen. So to get this screen, the application must be on the foreground.

I hope that a shed.

Now, I would say, rather than push these screens using the actual RIM applications, skip this treatment to your own application, and then you have the control over the treatment of foreground/background. Probably the best way to proceed is to use a Global event, extract the data you want the listener, talk to your application, and then deal with this in your own application.

Edit: My apologies for this suggestion of duplication - I just changed when RexDoug

Running on UiApplication or Midlet?

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