When I click the Home button on the android I want it to save the frame AS3

Question

This is for the game i am doing When I click the Home button on the android I want it to save the frame it was in and not start the game loads where it was

This results in saving the game forever but I just want it to save once and the code to load does not work

   import flash.net.SharedObject;

   stage.addEventListener(KeyboardEvent.KEY_DOWN, buttonPressed); 
   var stateSO:SharedObject = SharedObject.getLocal("saveState");
   if (stateSO.size > 0 && stateSO.data.lastFrame && stateSO.data.lastFrame != undefined) {
  //the shared object exists and has a valid value, so lets skip to that frame
 gotoAndPlay(stateSO.data.lastFrame);
 trace("Load Here.");
 }


 function buttonPressed(event:KeyboardEvent):void{  
 if (event.keyCode == Keyboard.MENU){

 //this function runs every frame 
 function saveState(Event){       
 stateSO.flush(); //save the cookie (shared object)
 trace("Save Here.");
 return;
 }

 addEventListener(Event.ENTER_FRAME, saveState);

 stage.removeEventListener(KeyboardEvent.KEY_DOWN, buttonPressed);
 } 

 }

thanks for help

Answer 1

There's unnecessary code inside your keypress event handler (and other places), and you never actually write the value you want to save. Also, always format your code because a lot of errors could occur just because you cannot read clearly what your code is actually doing.

import flash.net.SharedObject;

var stateSO:SharedObject;

// I guess this is a frame script, lets run it
// only once to avoid the possible mess.

if (!stateSO)
{
    stage.addEventListener(KeyboardEvent.KEY_DOWN, buttonPressed);

    stateSO = SharedObject.getLocal("saveState");

    if (stateSO.data.lastFrame != undefined)
    {
        trace("Load Here.");
        gotoAndPlay(stateSO.data.lastFrame);
    }
}

function buttonPressed(e:KeyboardEvent):void
{
    // I hope you know what this button is.
    if (e.keyCode == Keyboard.MENU)
    {
        saveState();
    }
}

function saveState():void
{
    // Write current frame to the SharedObject.
    stateSO.data.lastFrame = currentFrame;
    stateSO.flush();
    trace("Save Here.");
}