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How to implement a ticker in a mobile |
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This Java tip explains the concept of how to implement a ticker
in mobile handset. A ticker is an advertisement that runs across
the top of the screen. It is basically an object that provides
scrolling text across the top of the display. Further the ticker
is associated with the display, not with the mobile screen.
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.lcdui.Ticker;
public class TickerDemo extends MIDlet implements CommandListener
{
private Display display;
private Command exit;
Form frm;
private Ticker ticker;
public TickerDemo()
{
//Create a ticker with message
ticker =new Ticker("Hello from JJKK");
display = Display.getDisplay(this);
}
public void startApp()
{
frm=new Form("Ticker Demo");
exit= new Command("Exit",Command.EXIT,1);
frm.addCommand(exit);
frm.setCommandListener(this);
//add ticker to displayable
frm.setTicker(ticker);
frm.append("#####");
display.setCurrent(frm);
}
public void pauseApp()
{
}
public void destroyApp(boolean un)
{
}
public void commandAction(Command cmd,Displayable d)
{
if(cmd==exit)
{
}
}
}
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