Multiple Labels in LWUIT

[rana.anees]

Hi, i am using LWUIT list in which i displays 36 items. now i want to display the label againts each item.

i am not sure how to do it. i am using array of labels but not work.

here is some code


DefaultListModel simpleListModel = new DefaultListModel(items);
menu=new List(simpleListModel);
DefaultListCellRenderer dlcr=new DefaultListCellRenderer();
dlcr.getListFocusComponent(menu);
menu.setRenderer(dlcr);
menu.setRenderingPrototype("WWWW");
menu.getStyle().setBgTransparency(65);
menu.getStyle().setBorder(Border.createLineBorder(100));
menu.setItemGap(1);
addComponent(menu);

menu is List
this code displays List . how to add labels to each item.

[skalogir]

Hi rana.anees,

Your code looks fine, except that you need to specify a layout when adding the List component to top level container, i.e your LWUIT Form. I created a List of 4 items which I could successfully display them on the screen by using your code as follows:

import com.sun.lwuit.Button;
import com.sun.lwuit.Display;
import com.sun.lwuit.Form;
import com.sun.lwuit.List;
import com.sun.lwuit.events.ActionEvent;
import com.sun.lwuit.events.ActionListener;
import com.sun.lwuit.layouts.BorderLayout;
import com.sun.lwuit.list.DefaultListCellRenderer;
import com.sun.lwuit.list.DefaultListModel;
import com.sun.lwuit.plaf.Border;

 public class LWUITListMIDlet extends javax.microedition.midlet.MIDlet implements ActionListener {
	 Button exitButton;
	 Form mainform;
   
	public void startApp() {
		//init the LWUIT Display
		Display.init(this);
		mainform = new Form("LWUIT List");
		exitButton = new Button("Exit");     
		mainform.setLayout( new BorderLayout());
		
		//A list of items
		String[] items = { "Red", "Blue", "Green", "Yellow" };

		// Your code starts here
		DefaultListModel simpleListModel = new DefaultListModel(items);
		List menu = new List(simpleListModel);
		DefaultListCellRenderer dlcr = new DefaultListCellRenderer();
		dlcr.getListFocusComponent(menu);
		menu.setRenderer(dlcr);
		menu.setRenderingPrototype("WWWW");
		menu.getStyle().setBgTransparency(65);
		menu.getStyle().setBorder(Border.createLineBorder(100));
		menu.setItemGap(1);   
		//Adding the list with a centered border layout.
		mainform.addComponent(BorderLayout.CENTER, menu);
		//Your code ends here
		
		
		exitButton.addActionListener(this);
		mainform.addComponent(BorderLayout.SOUTH,exitButton);
		mainform.show();
   }
 
   public void pauseApp() {
	   //To-Do
   }
 
   public void destroyApp(boolean unconditional) {
	   //To-Do
   }

    public void actionPerformed(ActionEvent ae) {
        notifyDestroyed();
    }
    
}

[rana.anees]

I think you misunderstand a question.I have created a list i want to add a label against each to display a string how can i do that. Kindly some me some code of displaying labels against each item in list. thanks for reply.

[skalogir]

Apologies for the misunderstanding. In that case, why don't you just create a container and add each label (which is a component) to your container? If you set the Layout of the container to BoxLayout.Y_AXIS, then each label will be placed one on top of the other.
This is a sample code:

import com.sun.lwuit.Button;
import com.sun.lwuit.Container;
import com.sun.lwuit.Display;
import com.sun.lwuit.Form;
import com.sun.lwuit.Label;
import com.sun.lwuit.events.ActionEvent;
import com.sun.lwuit.events.ActionListener;
import com.sun.lwuit.layouts.BorderLayout;
import com.sun.lwuit.layouts.BoxLayout;

 public class LWUITListMIDlet extends javax.microedition.midlet.MIDlet implements ActionListener {
	 Button exitButton;
	 Form mainForm;
   
	public void startApp() {
		//init the LWUIT Display
		Display.init(this);
		mainForm = new Form("LWUIT List");
		exitButton = new Button("Exit");     
		mainForm.setLayout( new BorderLayout());
		
		//Creates a container for all the Labels
		Container list = new Container();
		//The list of Labels
		Label item1 = new Label("Item 1");
		Label item2 = new Label("Item 2");
		Label item3 = new Label("Item 3");
		//Adds all the Labels to the container
		list.addComponent(item1);
		list.addComponent(item2);
		list.addComponent(item3);
		//Sets the container's layout to BoxLayout 
		//This enables the list of Labels to be placed one
		//above the other
		BoxLayout boxlayout = new BoxLayout(BoxLayout.Y_AXIS);
		list.setLayout(boxlayout);

		//Adding the list with a centered border layout.
		mainForm.addComponent(BorderLayout.CENTER, list);
		
		//An additional Exit Button
		exitButton.addActionListener(this);
		mainForm.addComponent(BorderLayout.SOUTH,exitButton);
		mainForm.show();
   }
 
   public void pauseApp() {
	   //To-Do
   }
 
   public void destroyApp(boolean unconditional) {
	   //To-Do
   }

   public void actionPerformed(ActionEvent ae) {
        notifyDestroyed();
   }  
}