AlertType.WARNING : AlertType « javax.microedition.lcdui « Java by API

1. Java by API
2. javax.microedition.lcdui
3. AlertType

AlertType.WARNING

 


import javax.microedition.lcdui.Alert;
import javax.microedition.lcdui.AlertType;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

public class J2MEDisplayAlert extends MIDlet implements CommandListener {
  private Display display;

  private Alert alert;

  private Form form;

  private Command exit;

  private boolean exitFlag;

  public J2MEDisplayAlert() {
    exitFlag = false;
    display = Display.getDisplay(this);
    exit = new Command("Exit", Command.SCREEN, 1);
    form = new Form("Throw Exception");
    form.addCommand(exit);
    form.setCommandListener(this);
  }

  public void startApp() {
    display.setCurrent(form);
  }

  public void pauseApp() {
  }

  public void destroyApp(boolean unconditional) throws MIDletStateChangeException {
    if (unconditional == false) {
      throw new MIDletStateChangeException();
    }
  }

  public void commandAction(Command command, Displayable displayable) {
    if (command == exit) {
      try {
        if (exitFlag == false) {
          alert = new Alert("Busy", "Please try again.", null, AlertType.WARNING);
          alert.setTimeout(Alert.FOREVER);
          display.setCurrent(alert, form);
          destroyApp(false);
        } else {
          destroyApp(true);
          notifyDestroyed();
        }
      } catch (MIDletStateChangeException exception) {
        exitFlag = true;
      }
    }
  }
}

   
  

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