Custom toolbar will not appear
I created the toolbar class and classes below the tool bar button, but when I add an instance of the toolbar to a screen it will not appear. I noticed that the painting of the ToolBarButtonFields methods are not called so. So clearly I am missing something, advice?
SerializableAttribute public class ToolBarField extends Manager
{
Vector leftJustifiedButtons = new Vector();
Vector rightJustifiedButtons = new Vector();
preferredHeight int = 40;
public ToolBarField()
{
Super (Manager.NON_FOCUSABLE);
this.setBackground (BackgroundFactory.createSolidBackground (Color.BLACK));
}
public int getPreferredHeight()
{
return preferredHeight;
}
' Public Sub addButton (button ToolBarButtonField, rightJustified boolean)
{
Super.Add (Button);
If (button.getPreferredHeight () > preferredHeight)
preferredHeight = button.getPreferredHeight ();
If (! rightJustified)
{
leftJustifiedButtons.addElement (button);
}
on the other
{
rightJustifiedButtons.addElement (button);
}
}
public int getPreferredWidth()
{
East int = Display.getOrientation ();
If (Orient is Display.ORIENTATION_LANDSCAPE)
{
Return Display.getHeight ();
}
on the other
{
Return Display.getWidth ();
}
}
protected void sublayout (int maxWidth, maxHeight int)
{
buttonHeight int = getPreferredHeight();
buttonWidth int = 48;
int button = rightJustifiedButtons.size () + leftJustifiedButtons.size ();
If (buttons > 0)
{
buttonWidth = getPreferredWidth () / buttons;
}
Enumeration iter = rightJustifiedButtons.elements ();
int curX = maxWidth;
If (maxHeight > Display.getHeight ())
maxHeight = Display.getHeight ();
int y = maxHeight - this.getPreferredHeight ();
While (iter.hasMoreElements ())
{
Button for a field (Field) = iter.nextElement ();
this.layoutChild (button, buttonWidth, buttonHeight);
curX = curX - button.getWidth ();
this.setPositionChild (button, curX, y);
}
ITER = leftJustifiedButtons.elements ();
curX = 0;
While (iter.hasMoreElements ())
{
Button for a field (Field) = iter.nextElement ();
this.layoutChild (button, buttonWidth, buttonHeight);
this.setPositionChild (button, curX, y);
curX = curX + button.getWidth ();
}
}
}
SerializableAttribute public class ToolBarButtonField extends ImageButtonField
{
private static final int WIDTH = 48;
private static final int HEIGHT = 36;
int prefWidth = WIDTH;
int prefHeight = HEIGHT;
public ToolBarButtonField (Bitmap focusImage, unFocusImage Bitmap)
{
Super (focusImage, unFocusImage, Field.HIGHLIGHT_FOCUS |) ButtonField.CONSUME_CLICK);
If (focusImage.getWidth)<>
prefWidth = focusImage.getWidth ();
If (focusImage.getHeight)< height)="">
prefHeight = focusImage.getHeight ();
}
public int getPreferredHeight()
{
Return prefHeight;
}
public int getPreferredWidth()
{
Return prefWidth;
}
}
SerializableAttribute public class ImageButtonField extends field
{
private Bitmap currentImage;
focusedImage private bitmap;
unFocusedImage private bitmap;
ImageButtonField (Bitmap, Bitmap unFocusImage, long style focusImage)
{
Super (style);
this.focusedImage = focusImage;
this.unFocusedImage = unFocusImage;
currentImage = focusedImage;
}
public int getPreferredHeight()
{
Return currentImage.getHeight () + 4;
}
public int getPreferredWidth()
{
Return currentImage.getWidth () + 4;
}
protected void onFocus (int direction)
{
currentImage = focusedImage;
Invalidate();
}
protected void onUnfocus()
{
currentImage = unFocusedImage;
Invalidate();
}
protected void drawFocus (graphics graphics, boolean on)
{
Do nothing
}
protected void layout (int width, int height)
{
setExtent (Math.min (width, getPreferredWidth()),
Math.min (height, getPreferredHeight()));
}
protected void paint (Graphics graphics)
{
graphics.setColor (Color.BLACK);
graphics.fillRect (0, 0, getWidth(), getHeight());
graphics.drawBitmap (0, 0, getWidth(), getHeight(), currentImage, 0, 0);
}
/**
* Substituted so that the Dispatch of the event thread can catch this event
* instead of having taken here...
* @see net.rim.device.api.ui.Field #navigationClick (int, int)
*/
protected boolean navigationClick (int status, int time)
{
fieldChangeNotify (1);
Returns true;
}
}
I assume that you add an instance of the ToolBarField Manager on your screen?
This bit would have to debug both. For example, to delete your sublayout, extend FlowManager, add a normal button and see if it appears.
Tags: BlackBerry Developers
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