Add up Flash (5)

Introduced

Through a classic example, the alarm clock, a general idea of drawing and animating using Flash ActionScript 3.0, and learning about the development of custom events through this example

Custom event-inherits from event, a public static const defines the event type, and other public variables define event properties

Paint-executes vector drawing commands through the graphics property of a Shape object

Animation-via Timer object or listener Event.enter_frame event

1. Custom events (custom events triggered after the alarm clock has been set)

Alarmevent.as

Package
{
Import flash.events.Event;

public class AlarmEvent extends Event
{
Defining event Types
public static Const Alarm:string = "ALARM";

Defines the information that is displayed when the alarm clock is ringing
public Var alermmessage:string;

constructor, msg as reminder information
Public Function alarmevent (msg:string = "alarm!")
{
Invokes the constructor of the parent class. parameter is an event type and can be accessed as a event.type
Super (ALARM);

Alermmessage = msg;
}

Overriding the Event's Clone () method
public override function Clone (): Event
{
return new AlarmEvent (alermmessage);
}

Rewrite Event's toString () method
public override function ToString (): String
{
Event.formattostring ()-Implements the utility function of the toString () method in the custom Event class
Return formattostring ("AlarmEvent", "type", "Bubbles", "cancelable", "Eventphase", "message");
}
}
}