我需要将自定义参数从 flex 文件传递到 AIR 文件，
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600" creationComplete="AIRInstallBadge()">
<fx:Script>
<![CDATA[
import adobe.utils.ProductManager;
import flash.system.Capabilities;
import mx.controls.Alert;
// Constants:
public static const AIR_SWF_URL:String = "http://airdownload.adobe.com/air/browserapi/air.swf";
public static const VALID_PROTOCOLS:Array = ["http","https"];
// Private Properties:
// parameters:
protected var airVersion:String;
protected var appInstallArg:Array;
protected var appLaunchArg:Array;
protected var appID:String;
protected var appName:String;
protected var appURL:String;
protected var appVersion:String;
protected var pubID:String;
protected var skipTransition:Boolean;
//
protected var installedAIRVersion:String;
protected var airSWFLoader:Loader;
protected var airSWF:Object;
protected var action:String;
protected var prevAction:String;
protected var timer:Timer;
protected var productManager:ProductManager;
// Initialization:
public function AIRInstallBadge():void {
configUI();
// set up the timer that will be used to check for installation progress:
timer = new Timer(10000,0);
timer.addEventListener(TimerEvent.TIMER,handleTimer);
// set up a product manager for AIR:
productManager = new ProductManager('airappinstaller' );
// read params (except strings) from FlashVars:
var params:Object;
airVersion = "3.1";
appInstallArg = ["installed from web"];
appLaunchArg = ["launched from web", "hello"];
appID = "com.ScShare";
appName = "ScShare";
appURL = "http://localhost:9292/interfacefinal_New_1-debug/ScShare.air";
appVersion ="1.0.0";
pubID = "";
skipTransition = false;
// verify all required params are accounted for:
if (!verifyParams()) {
actionFld.text = "";
return;
}
// strip tags out of the appName:
appName = appName.replace(/(<.*?>|<)/g,"");
// load the AIR proxy swf:
airSWFLoader = new Loader();
airSWFLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,handleAIRSWFError);
airSWFLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, handleAIRSWFInit);
try {
airSWFLoader.load(new URLRequest(AIR_SWF_URL))//, loaderContext);
} catch (e:*) {
handleAIRSWFError(null);
}
}
// Public Methods:
// Protected Methods:
// called when there is an error loading the airSWF
protected function handleAIRSWFError(evt:IOErrorEvent):void {
actionFld.text = "";
}
// called when the airSWF loads and inits
protected function handleAIRSWFInit(evt:Event):void {
airSWF = airSWFLoader.content;
if (airSWF.getStatus() == "unavailable") {
return;
}
var version:String = null;
if (appID && pubID) {
// check if the application is already installed:
try {
airSWF.getApplicationVersion(appID, pubID, appVersionCallback);
return;
} catch (e:*) {}
}
enableAction("install");
}
// callback from the airSWF when requesting application version
protected function appVersionCallback(version:String):void {
if (version == null) {
// application is not installed
enableAction("install");
} else if (appVersion && (checkVersion(appVersion,version)==1)) {
// old version is installed
enableAction("upgrade");
} else {
// current version is probably installed
enableAction("launch");
}
}
// handles clicks on the action button
protected function handleActionClick(evt:MouseEvent):void {
if (action == "close") {
enableAction(prevAction);
} else if (action == "install" || action == "upgrade" || action == "tryagain") {
disableAction();
// check if it's installed every 5 seconds:
timer.reset();
timer.start();
airSWF.installApplication(appURL, airVersion, appInstallArg);
} else if (action == "launch") {
airSWF.launchApplication(appID, pubID, appLaunchArg);
enableAction("close");
}
}
// triggered every 5 seconds after installing or upgrading.
// checks to see if the expected version of the application was successfully installed.
protected function handleTimer(evt:TimerEvent):void {
try {
airSWF.getApplicationVersion(appID, pubID, tryAgainVersionCallback);
} catch (e:*) {
enableAction("tryagain");
}
}
// call back from version check in handleTimer
// verifies that version is appVersion, and provides option to launch the app if it is.
protected function tryAgainVersionCallback(version:String):void {
if (version != null && (appVersion == null || !(checkVersion(appVersion,version)==1))) {
// current version is probably installed
timer.stop();
enableAction("launch");
} else {
enableAction("tryagain");
}
}
// enables the action button with the appropriate label, and sets the action property
protected function enableAction(action:String):void {
if (action == null) {
disableAction();
actionFld.text = getText("loading");
prevAction = null;
} else {
if (this.action != "close") { prevAction = this.action; }
actionBtn.addEventListener(MouseEvent.CLICK, handleActionClick);
actionBtn.enabled = true;
actionFld.alpha = 1;
actionFld.text = getText(action);
}
this.action = action;
}
// disables the action button
protected function disableAction():void {
actionBtn.removeEventListener(MouseEvent.CLICK,handleActionClick);
actionBtn.enabled = false;
actionFld.alpha = 0.2;
}
// return if all required parameters are present, false if not:
protected function verifyParams():Boolean {
return !(appName == null || appURL == null || airVersion == null);
}
// return null if not a valid URL, only allow HTTP, HTTPS scheme or relative path
protected function validateURL(url:String):String {
if (url == null) { return null; }
var markerIndex:int = url.search(/:|%3a/i);
if (markerIndex > 0) {
var scheme:String = url.substr(0, markerIndex).toLowerCase();
if (VALID_PROTOCOLS.indexOf(scheme) == -1) { return null; }
}
if (url.indexOf("<") >= 0 || url.indexOf(">") >= 0) {
return null;
}
return url;
}
// returns null if the string is empty or null.
protected function validateString(str:String):String {
return (str == null || str.length < 1 || str.indexOf("<") >= 0 || str.indexOf(">") >= 0) ? null : str;
}
// returns the specified string from FlashVars (passed as "str_strcode") if available, or the default string if not.
protected function getText(strCode:String):String {
var str:String;
if (str != null && str.length > 1) {
return str;
}
switch (strCode) {
case "error": return "Error!";
case "err_params": return "Invalid installer parameters.";
case "err_airunavailable": return "Adobe® AIR™ is not available for your system.";
case "err_airswf": return "Unable to load the Adobe® AIR™ Browser API swf.";
case "loading": return "Loading...";
case "install": return "Install Now";
case "launch": return "Launch Now";
case "upgrade": return "Upgrade Now";
case "close": return "Close";
case "launching": return "Launching Application";
case "launchingtext": return "Please wait while the application launches.";
case "installing": return "Installing Application";
case "installingtext": return "Please wait while the application installs.";
case "tryagain": return "Try Again";
}
return "";
}
// returns true if the first version number is greater than the second, or false if it is lesser or indeterminate:
// works with most common versions strings: ex. 1.0.2.27 < 1.0.3.2, 1.0b3 < 1.0b5, 1.0a12 < 1.0b7, 1.0b3 < 1.0
protected function checkVersion(v1:String,v2:String):int {
var arr1:Array = v1.replace(/^v/i,"").match(/\d+|[^\.,\d\s]+/ig);
var arr2:Array = v2.replace(/^v/i,"").match(/\d+|[^\.,\d\s]+/ig);
var l:uint = Math.max(arr1.length,arr2.length);
for (var i:uint=0; i<l; i++) {
var sub:int = checkSubVersion(arr1[i],arr2[i])
if (sub == 0) { continue; }
return sub;
}
return 0;
}
// return 1 if the sub version element v1 is greater than v2, -1 if v2 is greater than v1, and 0 if they are equal
protected function checkSubVersion(v1:String,v2:String):int {
v1 = (v1 == null) ? "" : v1.toUpperCase();
v2 = (v2 == null) ? "" : v2.toUpperCase();
if (v1 == v2) { return 0; }
var num1:Number = parseInt(v1);
var num2:Number = parseInt(v2);
if (isNaN(num2) && isNaN(num1)) {
return (v1 == "") ? 1 : (v2 == "") ? -1 : (v1 > v2) ? 1 : -1;
}
else if (isNaN(num2)) { return 1; }
else if (isNaN(num1)) { return -1; }
else { return (num1 > num2) ? 1 : -1; }
}
// ** this is the public API we expose so the badge configuration application can work with this badge **
// returns an object containing the basic properties of the badge. The configurator expects minWidth, maxWidth, minHeight and maxHeight.
public function getProps():Object {
return {minWidth:215,maxWidth:430,minHeight:180,maxHeight:320};
}
// return an object representing the dimensions of the image to export for this badge.
// This is called when the badge is exported by the configurator so that it can vary dynamically depending on the badge's current dimensions.
public function getImageSize():Object {
return {width:205,height:170};
}
// handles initial UI setup.
protected function configUI():void {
actionFld.text = getText("loading");
actionFld.mouseEnabled = false;
disableAction();
}
]]>
</fx:Script>
<fx:Declarations>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
<s:Label id="imageAltFld" x="27" y="31" width="361" height="26"/>
<s:Button id="actionBtn" x="27" y="65" width="200" height="32"/>
<s:Label id="actionFld" x="48" y="97" width="157" height="23" verticalAlign="middle"/>
</s:Application>
AIR 文件代码：
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009 xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx"width="320" height="276" invoke="onInvokeEvent(event)">
private function onInvokeEvent(event:InvokeEvent):void{
paramObj = LoaderInfo(this.root.loaderInfo).parameters;
//Alert.show(paramObj["myVar"].toString());
Alert.show("arguments: "+ event.arguments.toString() + event.currentDirectory.toString());
var invocation:InvokeEvent = InvokeEvent(event);
for each(var argument:String in invocation.arguments)
airParams.addItem(argument);
}
另外：allowBrowserInvocation 设置为 true
别无所事事，需要在 AIR 启动（onInvoke 事件）时将一些变量从 flex 传递给 AIR，但它什么也没显示，有什么想法吗？