//Friends list
friendsList = new ListField(){
protected boolean trackwheelClick(int status, int time){
// consume the click, so that there is no menu displayed
return true;
}
};
friendsList.setSize(MAX_FRIENDS);// this size is not updated correctly
final class FriendsListCallback implements ListFieldCallback {
public void drawListRow(ListField listField,
Graphics graphics,
int index,
int y,
int width) {
if (index < app.friendsListVector.size()) {
graphics.drawText(((User)app.friendsListVector.elementAt(index)).
getName(), 35, y, 0, width);
}
}
public Object get(ListField listField, int index) {
// TODO Auto-generated method stub
return null;
}
public int getPreferredWidth(ListField listField) {
return Display.getWidth();
}
public int indexOfList(ListField listField, String prefix, int start) {
return listField.indexOfList(prefix, start);
}
}
friendsList.setCallback(new FriendsListCallback());
That is my list. and the following code is the update
public void updateFriendsList(){
int size = app.friendsListVector.size();
friendsList.setSize(size);
friendsList.invalidate();
friendsList.getManager().invalidate();
}
After calling updateFriendsList() after friendsListVector's size has increased, the _size member of listField is updated correctly(seen in debugger), but drawListRow() is not called with the new index parameters.
The only way to trigger the drawing of the new rows is to rotate the blackberry or to select another object in object choice box on the same screen. Even though nothing happens after the choice.
FieldChangeListener listenerChoiceFields = new FieldChangeListener(){
public void fieldChanged(Field field, int context){
}
};
Selecting the same element does not help.
The behavior is the same in the 4.7.0.46 emulator in eclipse and the Storm device.
Any idea? Is there anything I have to do in addition to calling invalidate?
