в 09:19, 26 мая 2010

2010-05-26T09:19:12Z

Admin: 1 версия

2010-05-26T08:14:46Z

1 версия

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==Adding Static Properties to a Class: static publicPrivateModifier var propertyName:Datatype;==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
trace(Car.EXTERIOR_COLORS);
}
}
}
class Car{
static public var EXTERIOR_COLORS:Array = ["red", "silver", "gold", "white", "blue"];
}
</source>

==Another option is to use implicit getters and setters.==



<source lang="java">

public function get name( ):Datatype {

}
public function set name(value:Datatype):void {
}
package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var counter: Counter = new Counter();

counter.count = 5;
trace(counter.count);
}
}
}
class Counter {
private var _count:uint;
public function Counter( ) {
_count = 0;
}
public function get count( ):uint {
return _count;
}
public function set count(value:uint):void {
if(value < 100) {
_count = value;
}
else {
throw Error( "Error" );
}
}
}
</source>

==Build a returning value from get property method==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var crTest:Car = new Car("A", "B", "C");
trace(crTest.description);
}
}
}
class Car {

private var _sMake:String = null;
private var _sModel:String = null;
private var _sExteriorColor:String = null;

public function get description():String {
var sDescription:String = "";
sDescription += "Model: " + _sModel + "\n";
sDescription += "Make: " + _sMake + "\n";
sDescription += "Exterior Color: " + _sExteriorColor + "\n";
return sDescription;
}

public function Car(sMake:String,
sModel:String,
sExteriorColor:String)
{
_sMake = sMake;
_sModel = sModel;
_sExteriorColor = sExteriorColor;
}

}
</source>

==Use get and set for properties==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var crTest:Car = new Car();
crTest.make = "Old";
crTest.model = "A";
crTest.exteriorColor = "blue";
trace(crTest.make);
trace(crTest.model);
trace(crTest.exteriorColor);
}
}
}
class Car {

private var _sMake:String = null;
private var _sModel:String = null;
private var _sExteriorColor:String = null;

public function get make():String {
return _sMake;
}

public function set make(sMake:String):void {
_sMake = sMake;
}

public function get model():String {
return _sModel;
}

public function set model(sModel:String):void {
_sModel = sModel;
}

public function get exteriorColor():String {
return _sExteriorColor;
}

public function set exteriorColor(sExteriorColor:String):void {
_sExteriorColor = sExteriorColor;
}
}
</source>

==Use get and set to define the readable and writable properties==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){

var crTest:Car = new Car("A", "B", "C");
trace(crTest.make);
trace(crTest.model);
trace(crTest.exteriorColor);
}
}
}
class Car {

private var _sMake:String = null;
private var _sModel:String = null;
private var _sExteriorColor:String = null;

public function get make():String {
return _sMake;
}

public function set make(sMake:String):void {
_sMake = sMake;
}

public function get model():String {
return _sModel;
}

public function set model(sModel:String):void {
_sModel = sModel;
}

public function get exteriorColor():String {
return _sExteriorColor;
}

public function set exteriorColor(sExteriorColor:String):void {
_sExteriorColor = sExteriorColor;
}

public function Car(sMake:String,
sModel:String,
sExteriorColor:String)
{
_sMake = sMake;
_sModel = sModel;
_sExteriorColor = sExteriorColor;
}

}
</source>

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Flash / Flex / ActionScript/Class/Properties - История изменений

в 09:19, 26 мая 2010

Admin: 1 версия