How to login and request extended permission in a single call? - iphone

Question

OK, so I need my app to be able to post something on the users's wall but I'm not very happy with the solution of showing the login pop-up and then the extended permission request popup.
Can it be done with only one popup? Or even with 2 pop-ups but triggered by a single API call?

Answer 1

It might help -
- (void)viewDidLoad {
FacebookAPIAppDelegate *appDelegate =(FacebookAPIAppDelegate *)[[UIApplication sharedApplication]delegate];
if (appDelegate._session == nil){
appDelegate._session = [FBSession sessionForApplication:_APP_KEY
secret:_SECRET_KEY delegate:self];
}
if(self.loginButton == NULL)
self.loginButton = [[[FBLoginButton alloc] init] autorelease];
loginButton.frame = CGRectMake(0, 0, 200, 50);
[self.view addSubview:loginButton];
[super viewDidLoad];
}
- (void)session:(FBSession*)session didLogin:(FBUID)uid {
self.usersession =session;
NSLog(#"User with id %lld logged in.", uid);
[self getFacebookName];
}
- (void)getFacebookName {
NSString* fql = [NSString stringWithFormat:
#"select uid,name from user where uid == %lld", self.usersession.uid];
NSDictionary* params = [NSDictionary dictionaryWithObject:fql forKey:#"query"];
[[FBRequest requestWithDelegate:self] call:#"facebook.fql.query" params:params];
self.post=YES;
}
- (void)request:(FBRequest*)request didLoad:(id)result {
if ([request.method isEqualToString:#"facebook.fql.query"]) {
NSArray* users = result;
NSDictionary* user = [users objectAtIndex:0];
NSString* name = [user objectForKey:#"name"];
self.username = name;
if (self.post) {
[self postToWall];
self.post = NO;
}
}
}
- (void)postToWall {
FBStreamDialog *dialog = [[[FBStreamDialog alloc] init] autorelease];
dialog.userMessagePrompt = #"Enter your message:";
//dialog.attachment = [NSString stringWithFormat:#"{\"name\":\"Check this Mix\",\"href\":\"http://developers.facebook.com/connect.php?tab=iphone\",\"caption\":\"Caption\",\"description\":\"Description\",\"media\":[{\"type\":\"image\",\"src\":\"http://img40.yfrog.com/img40/5914/iphoneconnectbtn.jpg\",\"href\":\"http://developers.facebook.com/connect.php?tab=iphone/\"}],\"properties\":{\"another link\":{\"text\":\"Facebook home page\",\"href\":\"http://www.facebook.com\"}}}"];
dialog.attachment = [NSString stringWithFormat:#"{\"name\":\"Check this Mix\",\"href\":\"http://developers.facebook.com/connect.php?tab=iphone\",\"caption\":\"Caption\",\"media\":[{\"type\":\"image\",\"src\":\"http://img40.yfrog.com/img40/5914/iphoneconnectbtn.jpg\",\"href\":\"http://developers.facebook.com/connect.php?tab=iphone/\"}],\"properties\":{\"another link\":{\"text\":\"Facebook home page\",\"href\":\"http://www.facebook.com\"}}}"];
[dialog show];
}

Answer 2

as long as the user has logged in and granted permissions once, he should not need to do so again. here's the code I use:
//these to need to be declared in .h
NSString * currentRequest;
BOOl hasAskedForPermissions;
FBSession * mySession
//then in .m
#synthesize currentRequest
#synthesize hasAskedForPermissions
-(void)viewDidLoad {
static NSString* kApiKey = #"XXXXXXXXXXXXXXXXXXXXXXX";
static NSString* kApiSecret = #"XXXXXXXXXXXXXXXXXXXXXXXXXX";
mySession = [[FBSession alloc] initWithKey:kApiKey secret:kApiSecret getSessionProxy:nil];
}
-(void)resumeConnection {
NSLog(#"resuming connection");
static NSString* kApiKey = #"XXXXXXXXXXXXXXXXXXXXXXX";
static NSString* kApiSecret = #"XXXXXXXXXXXXXXXXXXXXXXXXXX";
if ([mySession resume]) {
}
else {
NSLog(#"session did not resume successfully");
mySession = [[FBSession sessionForApplication:kApiKey
secret:kApiSecret delegate:self] retain];
_loginDialog = [[FBLoginDialog alloc] init];
[_loginDialog show];
}
}
-(void)postStatus {
currentRequest = #"post status";
//NSLog(#"current request: %#", currentRequest);
if (!(mySession.isConnected)) {
[self resumeConnection];
}
else if (mySession.isConnected) {
NSLog(#"session is connected");
//Add your posting code here.
} else {
NSLog(#"session is not connected, did not connect");
}
}
-(void)loadPermissionDialog {
FBPermissionDialog* dialog = [[FBPermissionDialog alloc] initWithSession:_session];
dialog.delegate = self;
dialog.permission = #"read_stream, publish_stream, read_friendlists";
[dialog show];
}
- (void)session:(FBSession *)session didLogin:(FBUID)uid {
NSLog(#"Session Logged in sucessfully");
//NSLog(#"current request: %#", currentRequest);
mySession = session;
if (hasAskedForPermissions) {
if ([currentRequest isEqualToString:#"post status"]) {
[self postStatus];
}
}
else {
NSLog(#"asking for permissions");
hasAskedForPermissions = YES;
//you should save this in UserDefaults and recall it in viewDidLoad
[self loadPermissionDialog];
}
}
I don't know how to actually do the post request, but if you run this code the user should only have to log in and assign permissions once.