[Naga Mallika]

i have to create a title for the screen, a label field,an edit field and a button field now i need logic that when my button field is clicked the text in the edit field should be displayed like a pop up screen. my code is


package com.Editfield;

import net.rim.device.api.ui.*;
import net.rim.device.api.ui.Field.*;
import net.rim.device.api.ui.component.TextField.*;
import net.rim.device.api.ui.component.EditField.*;
import net.rim.device.api.ui.component.*;
import net.rim.device.api.ui.container.*;
import net.rim.device.api.system.*;
import net.rim.device.api.ui.Font;
import net.rim.device.api.ui.decor.*;
import net.rim.device.api.ui.XYEdges.*;

/**
*
*/
public class Editfield extends UiApplication {
public static void main(String[] args){

Editfield theApp = new Editfield();
theApp.enterEventDispatcher();
}
public Editfield() {
pushScreen(new EditfieldScreen());


}
}

class EditfieldScreen extends MainScreen
{



FieldChangeListener listener = new FieldChangeListener(){
public void fieldChanged(Field field, int context){
LabelField lbl1 = (LabelField) field;
add(lbl1);
System.out.println("Button pressed:");
}
};

ButtonField buttonField = new ButtonField("Test Button");

public EditfieldScreen()
{
super();
setTitle("EditField Demo");
Border bdr = BorderFactory.createRoundedBorder(new XYEdges(4,4,4,4),Border.STYLE_SOLID);


LabelField lbl = new LabelField("Enter the name:");

EditField edit = new EditField("Sample Test:","");

edit.setBorder(bdr);

ButtonField buttonField = new ButtonField("Show");

add(lbl);
add(edit);
add(buttonField);
buttonField.setChangeListener(listener);



}




public boolean onClose(){
Dialog.alert("Goodbye!");
System.exit(0);
return true;
}

}


till here my code is running perfectly but when the show button is clicked it is showing the jvm error

[Naga Mallika]

need help to get a pop up screen when a buttonfield is clicked

[f_ortega86]

Your problem is here:

FieldChangeListener listener = new FieldChangeListener(){
public void fieldChanged(Field field, int context){
LabelField lbl1 = (LabelField) field;
add(lbl1);
System.out.println("Button pressed:");
}
};

The parameter field isn´t a LabelField because you use this listener in a ButtonField. In addiction, you can´t add any Field to the current Screen like that code "add(lbl1)". Try this:

FieldChangeListener listener = new FieldChangeListener(){
public void fieldChanged(Field field, int context){
//With this you obtain the control of the current screen
EditFieldScreen screen = (EditFieldScreen) UiApplication.getUiApplication().getActiveScreen() ;

Dialog.inform(screen.edit.getText()); /*You need to put the EditField like an attribute in the EditfieldScreen class*/

}
};

[Naga Mallika]

thank you

[Naga Mallika]

This is my code

/*
* CustomLayoutManagersApplication.java
*
* © <your company here>, 2003-2008
* Confidential and proprietary.
*/

package BlackBerry.CustomLayoutManagers.CustomLayoutManage rsApplication;



import net.rim.device.api.ui.*;
class CustomLayoutManagersApplication extends UiApplication
{

public CustomLayoutManagersApplication ()
{

CustomMainScreen CLMS = new CustomMainScreen(); pushScreen(CLMS);
}

public static void main(String args[])
{
CustomLayoutManagersApplication cts = new CustomLayoutManagersApplication();
cts.enterEventDispatcher();
}

}
--------
I am getting cannot find symbol near that line i am not able to find out what is the mistake i did in my code

-------------
package BlackBerry.CustomLayoutManagers.CustomLayoutManage rsScreen;
import net.rim.device.api.ui.*;
import net.rim.device.api.ui.Field.*;
import net.rim.device.api.ui.container.*;

import net.rim.device.api.ui.XYEdges.*;
import net.rim.device.api.ui.component.TextField.*;
import net.rim.device.api.ui.component.EditField.*;
import net.rim.device.api.ui.decor.*;
import net.rim.device.api.ui.Manager.*;

import net.rim.device.api.ui.container.HorizontalFieldMan ager.*;
import net.rim.device.api.ui.container.VerticalFieldManag er.*;

import net.rim.device.api.ui.component.*;
import net.rim.device.api.ui.component.LabelField.*;

import net.rim.device.api.ui.component.BitmapField.*;
import net.rim.device.api.system.*;

import net.rim.device.api.ui.container.MainScreen.*;


/**
*
*/
public class CustomMainScreen extends MainScreen
{
ObjectChoiceField obj;
String choicestrs[] = {"January","February","March","April","May","June" ,"July","August","September","October","November", "December"};

public CustomMainScreen()
{


setTitle("CustomLayoutManagers");
Bitmap bmp2 = Bitmap.getBitmapResource("bing.PNG");
BitmapField bmp = new BitmapField(bmp2,BitmapField.FIELD_LEFT);
LabelField lbl = new LabelField("Name:",LabelField.FIELD_RIGHT);
EditField edit = new EditField();
obj = new ObjectChoiceField("Month:",choicestrs,0);
ButtonField button = new ButtonField("Add");
CustomLayoutManagersDemo CLMD = new CustomLayoutManagersDemo(); CLMD.addbmp(bmp);
CLMD.addlbl(lbl);
CLMD.addedit(edit);
CLMD.addobj(obj);
CLMD.addbutton(button);
add(CLMD);
}
---------------------
i am getting cannot find symbol in my above code all the two code are linked