subclass

I am creating a UIView subclass for a notification dropdown banner. I am using a XIB to build out the view and want to assign that xib to the class when it initializes (i.e. avoiding having to do this from the calling ViewController). Since you can't assign to 'self' in swift, how do I properly do this from within the class itself? class MyDropDown: UIView { func showNotification() { self = UINib(nibName: nibNamed, bundle: bundle).instantiateWithOwner(nil, options: nil)[0] as? UIView } } For anyone looking on how to initialize a xib from it's own class in swift, here is the best approach using

As you can see below I have a super class (Article) and two sub classes. I want each of the sub classes to have a static array that shall hold all it's objects. abstract class Article { public static $articles = array(); // Variable for storing all the objects of each sub-class. public function add_Object_To_Array() { array_push(self::$articles, $this); } } class Report extends Article{} class Interview extends Article{} -Making two Report objects and adding them to their array: $tmp = new Report(); $tmp->add_Object_To_Array(); $tmp = new Report(); $tmp->add_Object_To_Array(); -Making two

The Scenario I'm making a program in Java that involves cars. NOTE: I've simplified this scenario (to the best of my ability) to make it both more general and easier to understand. I'm not actually working with cars. I've created a Cars class, which is a collection of Car objects. The Car object has a speed (double) and a year (int). The constructor takes the year as a parameter, for example: public class Car { private int year; private double speed; public Car(int year) { this.year = year; } } Here's the tricky part... A car must have a kind (let's say Corvette or Clunker). A Corvette will

If a class defined an annotation, is it somehow possible to force its subclass to define the same annotation? For instance, we have a simple class/subclass pair that share the @Author @interface. What I'd like to do is force each further subclass to define the same @Author annotation, preventing a RuntimeException somewhere down the road. TestClass.java: import java.lang.annotation.*; @Retention(RetentionPolicy.RUNTIME) @interface Author { String name(); } @Author( name = "foo" ) public abstract class TestClass { public static String getInfo( Class<? extends TestClass> c ) { return c

When using drawRect for a custom UIButton subclass, it never seems to get called to draw the button when highlighted. Do I need to call setNeedsDisplay for my button in my touch events? As far as i can tell there is no straight forward way to subclass UIButton. UIButton is not the actual class type that is returned by the initializers. UIButton is kind of a front for a series of private classes. Say you had: UIButton *myButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; NSLog(@"myButton type: %@", [myButton description]); You will find the type returned in the log to be

I am trying to create a subclass of a Pandas data structure to substitute, in my code, a subclass of a dict with a subclass of a Series , I don't understand why this example code doesn't work from pandas import Series class Support(Series): def supportMethod1(self): print 'I am support method 1' def supportMethod2(self): print 'I am support method 2' class Compute(object): supp=None def test(self): self.supp() class Config(object): supp=None @classmethod def initializeConfig(cls): cls.supp=Support() @classmethod def setConfig1(cls): Compute.supp=cls.supp.supportMethod1 @classmethod def