Examples of javax.microedition.lcdui.Displayable

javax.microedition.lcdui.Displayable
An object that has the capability of being placed on the display. A Displayable object may have a title, a ticker, zero or more commands and a listener associated with it. The contents displayed and their interaction with the user are defined by subclasses.
The title string may contain line breaks. The display of the title string must break accordingly. For example, if only a single line is available for a title and the string contains a line break then only the characters up to the line break are displayed.

Unless otherwise specified by a subclass, the default state of newly created Displayable objects is as follows:
- it is not visible on the Display;
- there is no Ticker associated with this Displayable;
- the title is null;
- there are no Commands present; and
- there is no CommandListener present.
@since MIDP 1.0


    public String prompt()
    {
        final Waiter waiter = new Waiter();
        final Display display = Application.getManager().getDisplay();
        final Displayable current = display.getCurrent();
        display.setCurrent( displayable );
        waiter.start();
        try
        {
            waiter.join();

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  protected abstract void createNavigation();


  public void commandAction(final Command c, final Displayable d) {
    Runnable execute = new Runnable() {
      public void run() {
        Displayable progressView = progressListner.getDisplay();
        try {
          //TODO: start after .5 sec
          setView(progressView);
          ActionCommand command = (ActionCommand) c;
          Navigation navigation = command.execute(d);

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      throw new IllegalArgumentException("${invalid.page.type}:" + entry.getClass());
    return page;
  }


  protected void setView(Displayable display) {
    final Displayable view = getView();
    if(view != null && !skipOnBack.contains(view.getClass().getName())) 
      previousView = view;
    display.setCommandListener(this);
    Display.getDisplay(midlet).setCurrent(display);
  }

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    /**
     * Switches a display to previous displayable of the current displayable.
     * The <code>display</code> instance is obtain from the <code>getDisplay</code> method.
     */
    public void switchToPreviousDisplayable() {
        Displayable __currentDisplayable = getDisplay().getCurrent();
        if (__currentDisplayable != null) {
            Displayable __nextDisplayable = (Displayable) __previousDisplayables.get(__currentDisplayable);
            if (__nextDisplayable != null) {
                switchDisplayable(null, __nextDisplayable);
            }
        }
    }

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     * @param nextDisplayable the Displayable to be set
     */
    public void switchDisplayable(Alert alert, Displayable nextDisplayable) {//GEN-END:|5-switchDisplayable|0|5-preSwitch
        // write pre-switch user code here
        Display display = getDisplay();
        Displayable __currentDisplayable = display.getCurrent();
        if (__currentDisplayable != null  &&  nextDisplayable != null) {
            __previousDisplayables.put(nextDisplayable, __currentDisplayable);
        }
        if (alert == null) {
            display.setCurrent(nextDisplayable);

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    /**
     * Switches a display to previous displayable of the current displayable.
     * The <code>display</code> instance is obtain from the <code>getDisplay</code> method.
     */
    public void switchToPreviousDisplayable() {
        Displayable __currentDisplayable = getDisplay().getCurrent();
        if (__currentDisplayable != null) {
            Displayable __nextDisplayable = (Displayable) __previousDisplayables.get(__currentDisplayable);
            if (__nextDisplayable != null) {
                switchDisplayable(null, __nextDisplayable);
            }
        }
    }

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    private Displayable goBack() {
        if (backStack.empty()) {
            listener.mainMenuDone();
            return null;
        } else {
            Displayable d = (Displayable) backStack.pop();
            display.setCurrent(d);
            return d;
        }
    }

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    private Displayable goBack() {
        if (backStack.empty()) {
            listener.mainMenuDone();
            return null;
        } else {
            Displayable d = (Displayable) backStack.pop();
            display.setCurrent(d);
            return d;
        }
    }

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    private Displayable goBack() {
        if (backStack.empty()) {
            listener.mainMenuDone();
            return null;
        } else {
            Displayable d = (Displayable) backStack.pop();
            display.setCurrent(d);
            return d;
        }
    }

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        return browser;
    }


    void showCurrDir() {
        Displayable oldDisplayable = display.getCurrent();


        final WaitCanvas wc = WaitCanvas.getInstance();
        wc.setText(T._("Reading directory..."));
        wc.setProgress(0);
        display.setCurrent(wc);

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