Hi
I just went thru the helloworld app yesterday. Today I went thru A11 UserInterface code and ran it on eclipse on my 8900 simulator but the buttons don't show up. Here's my code:
package UserInterfacePackage;
import net.rim.device.api.system.Bitmap;
import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.FieldChangeListener;
import net.rim.device.api.ui.MenuItem;
import net.rim.device.api.ui.component.BasicEditField;
import net.rim.device.api.ui.component.BitmapField;
import net.rim.device.api.ui.component.ButtonField;
import net.rim.device.api.ui.component.Dialog;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.component.Menu;
import net.rim.device.api.ui.component.SeparatorField;
import net.rim.device.api.ui.container.HorizontalFieldManager;
import net.rim.device.api.ui.container.MainScreen;
import net.rim.device.api.ui.container.VerticalFieldManager;
/**
* A class extending the MainScreen class, which provides default standard
* behavior for BlackBerry GUI applications.
*/
public final class MyScreen extends MainScreen
{
HorizontalFieldManager _fieldManagerTop;
VerticalFieldManager _fieldManagerMiddle;
HorizontalFieldManager _fieldManagerBottom;
BitmapField _bitmap;
Bitmap _canadaImage, _ukImage, _usImage;
LabelField _label;
BasicEditField _input;
String _canadaCapital, _ukCapital, _usCapital, _capital;
int displayed = 0;
/**
* Creates a new MyScreen object
*/
public MyScreen()
{
// Set the displayed title of the screen
LabelField title = new LabelField("User Interface
Sample",LabelField.ELLIPSIS | LabelField.USE_ALL_WIDTH);
setTitle(title);
//Managers
//HorizontalFieldManager _fieldManagerTop;
//VerticalFieldManager _fieldManagerMiddle;
//HorizontalFieldManager _fieldManagerBottom;
_fieldManagerTop = new HorizontalFieldManager();
_fieldManagerMiddle = new VerticalFieldManager();
_fieldManagerBottom = new HorizontalFieldManager();
add(_fieldManagerTop);
add(new SeparatorField());
add(_fieldManagerMiddle);
add(new SeparatorField());
add(_fieldManagerBottom);
//bitmaps
//BitmapField _bitmap;
//Bitmap _canadaImage, _ukImage, _usImage;
_canadaImage = Bitmap.getBitmapResource("canada.png");
_ukImage = Bitmap.getBitmapResource("uk.png");
_usImage = Bitmap.getBitmapResource("us.png");
_bitmap = new BitmapField();
_bitmap.setBitmap(_canadaImage);
_fieldManagerTop.add(_bitmap);
// Capitals
//LabelField _label;
//BasicEditField _input;
//String _canadaCapital, _ukCapital, _usCapital, _capital;
_canadaCapital = "Ottawa";
_ukCapital = "London";
_usCapital = "Washington";
_capital = _canadaCapital;
_label = new LabelField("Please press a button!");
_input = new BasicEditField("Capital (can be changed):", _capital);
_fieldManagerMiddle.add(_label);
_fieldManagerBottom.add(_input);
//Buttons
ButtonField canadaButton = new ButtonField("Canada");
ButtonField ukButton = new ButtonField(" UK ");
ButtonField usButton = new ButtonField(" US ");
//add listeners to buttons
FieldChangeListener listenerCanada = new FieldChangeListener(){
public void fieldChanged(Field field, int context) {
_bitmap.setBitmap(_canadaImage);
_input.setText(_canadaCapital);
displayed = 0;
}
};
FieldChangeListener listenerUK = new FieldChangeListener(){
public void fieldChanged(Field field, int context) {
_bitmap.setBitmap(_ukImage);
_input.setText(_ukCapital);
displayed = 1;
}
};
FieldChangeListener listenerUS = new FieldChangeListener(){
public void fieldChanged(Field field, int context) {
_bitmap.setBitmap(_usImage);
_input.setText(_usCapital);
displayed = 2;
}
};
// assign listeners to buttons
canadaButton.setChangeListener(listenerCanada);
ukButton.setChangeListener(listenerUK);
usButton.setChangeListener(listenerUS);
// add buttons to the managers
_fieldManagerBottom.add(canadaButton);
_fieldManagerBottom.add(ukButton);
_fieldManagerBottom.add(usButton);
}
protected void makeMenu(Menu menu, int instance) {
menu.add(_changeCapital);
menu.add(_close);
}
private MenuItem _changeCapital = new MenuItem("Change Capital", 110,
10){
public void run(){
if (displayed == 0)
_canadaCapital = _input.getText();
else if (displayed == 1)
_ukCapital = _input.getText();
else if (displayed == 2)
_usCapital = _input.getText();
}
};
private MenuItem _close = new MenuItem("Close", 110, 10) {
public void run(){
onClose();
}
};
public boolean onClose() {
Dialog.alert("Goobai");
System.exit(0);
return true;
}
}
Anything strikes anyone as outta whack?
