в 09:19, 26 мая 2010

2010-05-26T09:19:13Z

Admin: 1 версия

2010-05-26T08:15:00Z

1 версия

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==Add Event listener==



<source lang="java">

package {
import flash.display.*;
import flash.net.*;
import flash.events.*;
public class Main extends Sprite {
public function Main() {
var urlLoader:URLLoader = new URLLoader( );
urlLoader.addEventListener(Event.ruPLETE,
completeListenerA,
false,
0);
urlLoader.addEventListener(Event.ruPLETE,
completeListenerB,
false,
1);
urlLoader.load(new URLRequest("someFile.txt"));
}
private function completeListenerA (e:Event):void {
trace("Listener A: Load complete");
}
private function completeListenerB (e:Event):void {
trace("Listener B: Load complete");
}
}
}
</source>

==Event Listener Priority==



<source lang="java">

package {
import flash.display.*;
import flash.net.*;
import flash.events.*;
public class Main extends Sprite {
public function Main() {
var urlLoader:URLLoader = new URLLoader( );
// Registration order determines execution order
urlLoader.addEventListener(Event.ruPLETE, completeListenerA);
urlLoader.addEventListener(Event.ruPLETE, completeListenerB);
urlLoader.load(new URLRequest("someFile.txt"));
}
private function completeListenerA (e:Event):void {
trace("Listener A: Load complete");
}
private function completeListenerB (e:Event):void {
trace("Listener B: Load complete");
}
}
}
</source>

==Handling Events: a simple application that draws successive random lines==



<source lang="java">

package {
import flash.display.Sprite;
import flash.events.Event;

public class Main extends Sprite {

public function Main( ) {
graphics.lineStyle(1, 0, 1);
addEventListener(Event.ENTER_FRAME, onEnterFrame);
}
private function onEnterFrame(event:Event):void {
graphics.lineTo(Math.random( ) * 400, Math.random( ) * 400);
}
}
}
</source>

==Listeners for the Event.RESIZE event must be registered with Flash Player"s Stage instance,==



<source lang="java">

package {
import flash.display.*;
import flash.events.*;
public class Main extends Sprite {
public function Main( ) {
stage.scaleMode = StageScaleMode.NO_SCALE;
stage.addEventListener(Event.RESIZE, resizeListener);
}
private function resizeListener (e:Event):void {
trace("Flash Player was resized");
}
}
}
</source>

==Preventing Default Event Behavior==



<source lang="java">

package {
import flash.display.*;
import flash.text.*;
import flash.events.*;
public class Main extends Sprite {
private var t:TextField;
public function Main() {
t = new TextField();
t.border = true;
t.background = true;
t.type = TextFieldType.INPUT
addChild(t);
t.addEventListener(TextEvent.TEXT_INPUT, textInputListener);
}
private function textInputListener (e:TextEvent):void {
trace("Attempted text input: " + e.text);
e.preventDefault( );
t.appendText("x");
}
}
}
</source>

==Responding to Event.ACTIVATE and Event.DEACTIVATE==



<source lang="java">

package {
import flash.display.*;
import flash.utils.*;
import flash.events.*;
public class Main extends Sprite {
private var timer:Timer;
private var rect:Sprite;
public function Main() {
rect = new Sprite( );
rect.x = 200;
rect.y = 200;
rect.graphics.lineStyle(1);
rect.graphics.beginFill(0x0000FF);
rect.graphics.drawRect(0, 0, 150, 75);
addChild(rect);
addEventListener(Event.ACTIVATE, activateListener);
addEventListener(Event.DEACTIVATE, deactivateListener);
timer = new Timer(50, 0);
timer.addEventListener(TimerEvent.TIMER, timerListener);
}
private function timerListener (e:TimerEvent):void {
rect.rotation += 10;
}
private function activateListener (e:Event):void {
timer.start( );
}
private function deactivateListener (e:Event):void {
timer.stop( );
}
}
}
</source>

==Responding to Event.RESIZE.==



<source lang="java">

package {
import flash.display.*;
import flash.net.*;
import flash.events.*;
public class Main extends Sprite {
public function Main ( ) {
stage.scaleMode = StageScaleMode.NO_SCALE;
stage.addEventListener(Event.RESIZE, resizeListener);
}
private function resizeListener (e:Event):void {
trace("The application window changed size!");
trace("New width: " + stage.stageWidth);
trace("New height: " + stage.stageHeight);
}
}
}
</source>

==The Event.MOUSE_LEAVE Event==



<source lang="java">

package {
import flash.display.*;
import flash.events.*;
public class Main extends Sprite {
public function Main( ) {
stage.addEventListener(Event.MOUSE_LEAVE, mouseLeaveListener);
}
private function mouseLeaveListener (e:Event):void {
trace("The mouse has left the building.");
}
}
}
</source>

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Flash / Flex / ActionScript/Development/Event - История изменений

в 09:19, 26 мая 2010

Admin: 1 версия