Here's my code which uses the SharedObject to implement a User Data Manager.
This is my first ActionScript of any usefulness.
ja
http://vispo.com
package
{
// This is for managing the user's state from session to session.
// This saves their preferences and current state.
import flash.net.SharedObject;
import flash.net.URLRequest;
import flash.net.navigateToURL;
public class UserDataMgr
{
protected var _version:String= "1.5";
// The version of this program. The string is included in
_userDataFilename.
protected var _userDataFileName:String = "Main_" + _version;
// Customize this to set the name of the file stored on disk.
protected var _sharedObj:SharedObject;
public function UserDataMgr()
{
//The constructor of the UserDataMgr class.
readPrefs();
}
protected function readPrefs():void
{
// Called only by the constructor.
// At the end of this method, _sharedObj is valid or we've exited
// the program. It's either the previously stored info or, if
// none was found on disk, then it's default user data.
try {
_sharedObj = SharedObject.getLocal(_userDataFileName);
if (_sharedObj.size == 0)
{
// Then fill it with default data.
// This happens when the app is first run.
setDefaultUserData();
}
}
catch(e:Error) {
// Shared Object could not be created.
javaScriptPopUp("This program cannot run properly if you do not allow it
to save data to your hard disk. The program will now close.");
closeApp();
}
}
protected function closeApp():void
{
// Called by readPrefs.
// This is supposed to close the app.
// This probably doesn't work for AIR apps and who knows what other types
of Flash apps.
// This code should check to see if we're in an AIR app (etc), and act
accordingly.
// For more info, search CHC for 'close program'
var urlString:String = "javascript:window.opener = self; self.close();";
var request:URLRequest = new URLRequest(urlString);
navigateToURL(request, "_self");
}
protected function javaScriptPopUp(s:String):void
{
// Called by readPrefs.
// This opens a JavaScript pop up alert that displays s.
var arg:String="javascript:alert(\'" + s + "\')"
var alert:URLRequest = new URLRequest(arg);
navigateToURL(alert, "_self");
}
protected function setDefaultUserData():void
{
// Sets the default User Data in the SharedObject type.
setProperty("userId", "testId");
setProperty("userNumbers", {one:Math.random(), two:Math.random()});
setProperty("bobo", 3.0);
}
public function setProperty(name:String, value:*):void
{
// Call this from outside the object to set a property.
_sharedObj.data[name]=value;
}
public function getProperty(name:String)
{
// Call this from outside the object to get a property.
return _sharedObj.data[name];
}
}
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