Question

In my ios app I want to post on the user wall using facebookSDK 3.1.
in addition i would like to avoid using permissions if posible.

Answer 1

Using GraphAPI
From http://developers.facebook.com/docs/reference/dialogs/feed/

NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                               kAppId, @"app_id",
                               @"http://developers.facebook.com/docs/reference/dialogs/", @"link",
                               @"http://fbrell.com/f8.jpg", @"picture",
                               @"Facebook Dialogs", @"name",
                               @"Reference Documentation", @"caption",
                               @"Dialogs provide a simple, consistent interface for apps to interact with users.", @"description",
                               @"Facebook Dialogs are so easy!",  @"message",
                               nil];

[_facebook dialog:@"feed" andParams:params andDelegate:self];