setTitle等于null后为什么getHeight? 如何获得实际身高值?如何让黑莓屏幕上的标题屏幕高度?
public class ActivityScreen extends MainScreen {
/**
* Creates new instance Activity screen
*/
public ActivityScreen() {
super();
TitleFieldManager titleField = new TitleFieldManager(Display.getWidth());
super.setTitle(titleField);
if (titleField.getHeight() == 0) {
// Why titleField.getHeight() == 0 ?
}
}
}