Could I Extend Facebook Access_Token Expiration Time without Single Sign-On? - iphone

Question

I am a newbie on integrating facebook to iphone.
Now I encounter a problem when removing offline_access. Who can give me a hand? please
I use following code to get facebook authorization.
[facebook dialog:#"oauth" andParams:params andDelegate:self];
While when I extend access token with following code:
[facebook extendAccessTokenIfNeeded];
I encounter error: error_msg=The access token was not obtained using single sign-on, error_code=10
If I use following code to get authorization, I can extend access token.
[facebook authorize:permissions];
But I don't want my app directe to safari and then redirect to my app to get authorization
I see in Removal of offline_access permission, it says
Scenario 4: Client-side OAuth and Extending Access_Token Expiration Time through New Endpoint
Could I use it?
If yes, how to use it?
If no, is there any other method to extend access token? (without redirecting to safari)
{request_args=(
{
key = method;
value = "auth.extendSSOAccessToken";
},
{
key = sdk;
value = ios;
},
{
key = "sdk_version";
value = 2;
},
{
key = "access_token";
value = AAAAAK9pJJuEBAJ5VBsWIMjfdv6s9q6bXjO4AdO3diZA6s9ABEqS1VHNG1N5ynbvxyXVrFxTZAQ4RS8vww5hFPgb86TamBD0yjqPN75xopr8ACwqu8X;
},
{
key = format;
value = json;
}
), error_msg=The access token was not obtained using single sign-on, error_code=10}