Adobe AIR运行时会防止在同一时间启动多个AIR应用程序实例。通过任意更改发布者ID来规避此限制是否安全?有人知道Adobe是否计划在Air 2.0中允许多个并发实例吗?
<id />
标记,定义了应用程序标识符,用于计算互斥标识符。如果您的应用程序可以写入安装文件夹,则可以使用 File API 在运行时编辑它,随机更改 <id />
标记,允许多个相同应用程序的进程同时运行。我刚刚编写了一个快速实现Tyn方案的类。只需要调用MultipleInstanceAirApp.changeMetaInfId(stage);
即可。
你不一定需要stage部分,但我在测试时使用它来改变窗口位置。 无论如何,祝你使用愉快!
import flash.display.Stage;
import flash.events.Event;
import flash.events.IOErrorEvent;
import flash.filesystem.File;
import flash.filesystem.FileMode;
import flash.filesystem.FileStream;
import flash.utils.ByteArray;
/**
* @author Lachhh
*/
public class MultipleInstanceAirApp {
static private var loadFile : File;
static private var thePath:String = "./META-INF/AIR/application.xml";
static private var myGameId:String = "YOUR_GAME_ID";
static private var stage:Stage ;
static private var metaInfString:String ;
static public var instanceNumber:int = 0;
static public function changeMetaInfId(pStage:Stage):void {
stage = pStage;
var path:String = File.applicationDirectory.resolvePath(thePath).nativePath;
loadFile = new File(path);
loadFile.addEventListener(Event.COMPLETE, onLoadMetaInf);
loadFile.addEventListener(IOErrorEvent.IO_ERROR, onIoError);
loadFile.load();
}
private static function onLoadMetaInf(event : Event) : void {
loadFile.removeEventListener(Event.COMPLETE, onLoadMetaInf);
metaInfString = loadFile.data.toString();
replaceMetaInfIdIfFound();
saveStringToMetaInf(metaInfString);
}
static public function saveStringToMetaInf(s:String):void {
var b:ByteArray = new ByteArray();
b.writeUTFBytes(s);
saveFile(b);
}
static public function saveFile(data:ByteArray):void {
var thePath:String = File.applicationDirectory.resolvePath(thePath).nativePath;
var saveFile:File = new File(thePath);
var fileStream:FileStream = new FileStream();
fileStream.openAsync(saveFile, FileMode.WRITE);
fileStream.writeBytes(data);
fileStream.addEventListener(Event.CLOSE, onClose);
fileStream.close();
}
static private function replaceMetaInfIdIfFound():void {
if(checkToReplaceId(1, 2)) return ;
if(checkToReplaceId(2, 3)) return ;
if(checkToReplaceId(3, 4)) return ;
checkToReplaceId(4, 1);
}
static private function checkToReplaceId(i:int, newI:int):Boolean {
var id:String = getGameIdWithBrackets(i);
var newId:String = getGameIdWithBrackets(newI);
if(metaInfString.indexOf(id) != -1) {
metaInfString = myReplace(metaInfString, id, newId);
instanceNumber = newI;
return true;
}
return false;
}
private static function onClose(event : Event) : void {
trace("all done!");
placeScreenAccordingToInstanceNumber();
}
static private function placeScreenAccordingToInstanceNumber():void {;
switch(instanceNumber) {
case 1 :
stage.nativeWindow.x = 115;
stage.nativeWindow.y = 37;
break;
case 2 :
stage.nativeWindow.x = 115 + 660;
stage.nativeWindow.y = 37;
break;
case 3 :
stage.nativeWindow.x = 115;
stage.nativeWindow.y = 37 + 380;
break;
case 4 :
stage.nativeWindow.x = 115 + 660;
stage.nativeWindow.y = 37 + 380;
break;
}
}
private static function onIoError(event : IOErrorEvent) : void {
trace("io Error");
}
static private function getGameIdOriginalWithBrackets():String {
return "<id>" + myGameId + "</id>";
}
static private function getGameIdWithBrackets(i:int):String {
if(i == 1) return getGameIdOriginalWithBrackets();
return "<id>" + myGameId + i + "</id>";
}
static public function myReplace(msg:String, toFind:String, toBeReplacedWith:String):String {
return msg.split(toFind).join(toBeReplacedWith) ;
}
}
如果您将应用程序的逻辑封装为可以在一个窗口中运行并允许用户创建该窗口的多个实例的类,这是否会有所帮助?那会有所帮助吗?
您需要多个应用程序的主要原因是什么?
这将会破坏自动更新,请注意。
https://github.com/chrisdeely/AirAppDuplicator
只需将您的应用程序目录复制一份,并更改名称和应用程序ID。
package hobis.airpc
{
import flash.events.Event;
import flash.filesystem.File;
import flash.filesystem.FileMode;
import flash.filesystem.FileStream;
import flash.utils.ByteArray;
import jhb0b.utils.MArrayUtil;
public final class MAppXmlUpdateCounter
{
private static var _AppXmlFile:File;
public static function Update():void
{
_AppXmlFile = new File(File.applicationDirectory.nativePath);
_AppXmlFile = _AppXmlFile.resolvePath('META-INF\\AIR\\application.xml');
_AppXmlFile.addEventListener(Event.COMPLETE, ppOpened);
_AppXmlFile.load();
}
private static function ppOpened(evt:Event):void
{
const trx1:RegExp = /<id>[\s\S]*?<\/id>/;
const trx2:RegExp = /<([^>]+)>/g;
var tXmlStr:String = _AppXmlFile.data.toString();
var tMatArr:Array = tXmlStr.match(trx1);
if (!MArrayUtil.is_empty(tMatArr))
{
var tIdTagStr:String = tMatArr[0];
var tIdValStr:String = tIdTagStr.replace(trx2, '');
var tOriVal:String;
var tNumVal:uint;
var tStrArr:Array = tIdValStr.split('-');
if (tStrArr != null)
{
if (tStrArr.length == 2)
{
tOriVal = tStrArr[0];
tNumVal = int(tStrArr[1]);
}
else
if (tStrArr.length == 1)
{
tOriVal = tStrArr[0];
tNumVal = 0;
}
tNumVal++;
var tIdNewStr:String = '<id>' + tOriVal + '-' + tNumVal + '<\/id>';
var tNewXmlStr:String = tXmlStr.replace(tIdTagStr, tIdNewStr);
ppSaveFile(tNewXmlStr);
}
}
_AppXmlFile = null;
}
private static function ppSaveFile(val:String):void
{
var tfs:FileStream;
try
{
tfs = new FileStream();
tfs.openAsync(_AppXmlFile, FileMode.WRITE);
var tba:ByteArray = new ByteArray();
tba.writeUTFBytes(val);
tfs.writeBytes(tba);
tba.clear();
}
catch (e:Error) { }
try
{
tfs.close();
}
catch (e:Error) { }
}
}
}