It takes lot of time because of following steps;
1) get uid of friend using :
NSString *urlString=[NSString stringWithFormat:@"https://graph.facebook.com/me/friends?access_token=%@&fields=id,picture,name,birthday",fbGraph.accessToken];
2) put friends uid to get album id:
NSString *urlString1=[NSString stringWithFormat:@"https://graph.facebook.com/%@/albums?access_token=%@",obj.uid,fbGraph.accessToken];
NSString *album = [[[_response1 objectForKey:@"data"]objectAtIndex:j]objectForKey:@"name"];
if ([album isEqualToString:@"Profile Pictures"])
{
albumid = [[[_response1 objectForKey:@"data"]objectAtIndex:j]objectForKey:@"id"];
}
3) then put the album id to get the picture from that album:
NSString *albumUrl=[NSString stringWithFormat:@"https://graph.facebook.com/%@/photos?type=album&access_token=%@",albumid,fbGraph.accessToken];
NSString *picUrl=[[[[[_response2 objectForKey:@"data"]objectAtIndex:0]objectForKey:@"images"]objectAtIndex:0]objectForKey:@"source"];
Kindly tell me some other method to get profile picture with large size in a single step to save time.