I have used latest FB SKD in my iOS app so users can use facebook account to login. Application open the FB app and comes back to my app perfectly fine. However, in some place in the app, i have to show/pull some people facebook page (safari based using WebView), but even user already used the Facebook account to login into my native ios app, but the page still ask user to login again and when they click login, it shows them the annoying FB username/pass page.
Is there anyway, that the FB safari based page can authenticate the user since it's already logged into my app using FB integration? do i have to include query or something. Please give me details how to solve this problem since i'm new in this..
thanks again for your help...
pic: https://www.dropbox.com/s/rjlptu7ufpcq3vl/fb.png
When the user switches to Facebook app to authenticate, it doesn't create a cookie for your UIWebView which is why it's asking to login again. Have the user authenticate inside the UIWebView without switching to the Facebook app.
What you're talking about also sounds like a similar thing that happens with Facebook dialogs not knowing about the current Facebook session.
If you authenticate your user via Facebook, try saying the Facebook object itself as an instance variable somewhere in memory so you can access it again (a property on a singleton controller, perhaps?).
Spawning dialogs from an authenticated Facebook object appears to let them use the dialog without reauthenticating iff you have a [FBSession activeSession]. So you'd also have to maintain an active FB session. But I'm not sure if this kind of solution will work since you didn't show specific code for how you're doing your web-based FB fetches.
This question might also prove helpful:
Implement Login with Facebook in iOS 5 and 6
Related
I am implementing a custom login button in my iOS app, using the FBSDKLoginKit CocoaPod, version 4.8.0. I already have log in working, but I can't figure out how to log out of Facebook. I am already calling logOut on an instance of FBSDKLoginManager, but that only seems to clear the currentAccessToken value. When I tap my login button again, I see a screen that looks like this:
I want to be able to log in as a different Facebook user. How can I achieve this?
In the new version of the Facebook iOS SDK (4.6 and above, I think) the default behaviour of login uses Safari View Controller. So if you are logged into Safari and have already logged into your app using Facebook, it will not ask for your credentials again and show you that screen. If you want to log in as a different user, then you will need to log out of Facebook in Safari in which case the login dialog should ask for your credentials. Also, you can remove the app from your app settings and try to login in which case it will show you the permissions screen. This behaviour of the login dialog probably follows from the best practices where a logout from an app should not cause logout from Facebook itself.
I am developing iOS App which use Facebook iOS SDK 4.
When user has already done Facebook login, by doing Facebook login the dialog which shows "user has already approved your app" had be displayed.
So, do not show the dialog. I want to know whether the user has already done Facebook login.
Anyone know the good way? I think accessToken is returned if user once had done Facebook login.
FBSDKAccessToken manage current logged user's accessToken.
According to official Facebook Login guide
"FBSDKAccessToken Represents the access token provided by a successful login. Most important, it provides a global +currentAccessToken to represent the currently logged in user."
The currentAccessToken is a convenient representation of the token of the current user and is used by other SDK components (like FBSDKLoginManager).
According to above you can check either user has valid accessToken or not and based on this you can track call login method otherwise just skip to next flow.
In Facebook the access tokens are per user so you can pass them around apps and they will work. In your case if you can ship an access token from another app you will be able to skip the next logging in and use the API normally.
However I think this this thread will help you.
Things are a little bit different with iOS cause I have done a facebook login on Android and got no such issues.
i am working with the HelloFacebookSample from face book's sdk.
i have a few issues, but am trying to get through them.
The one i have right now is that after I login, then logout, then login again, i am automatically logged in without being asked for credentials. Is there any way to change this behavior?
And secondly (for now), is there any way i can bring up the FB login dialog within my app instead of it going to Safari? i don't want my users to have access to safari at all, so i need to keep control.
The original FB sdk (about 2 years old) handled the login directly from within the app, so I am thinking i am just missing something here?
Thanks,
Jerry
If you want full control over the login process then you can't use the SDK, you need to add and manage a web view yourself. Facebook tries to bother the user to reconfirm as little as possible, so it will provide a login with the least path of resistance (and user taps / interaction).
Depending on how the user is logged into Facebook you won't be able to force them to re-enter login details unless you implement the web view approach. If you're using the SDK then you would need to call closeAndClearTokenInformation on the active session and also delete any Facebook related cookies from the app (and that's probably as close as you can get).
I found two different FaceBook auth dialog while using two apps one is "Poker by Zynga" and other one is I am developing.
When I use FaceBook login in "Poker by Zynga" then Safari opens this page:
And when I use my app which is under development now, then Safari opens this page:
You can see both of these are two different pages. In Poker by Zynga, it says "Logged in as Vicky Gupta - Log Out" where user can choose Log Out to sign in as a different user. While in my app it says "You are logging into this app as Vicky Gupta", in this there is no Log Out button. The only way to log in as a different user to open FaceBook in Safari and then log out from there.
Does any one know why this difference is occurring ? am i missing something in FaceBook app settings? Or is this a normal behavior because I don't think so?
Note: I am using the latest FaceBook SDK (with graph api).
If you are using latest iOS Facebook SDK, I think to logout a user you just have to delete the token obtained by the Facebook main object.
I have FB connect implemented in my app. After battling with the FB app installed on a user's phone, I finally had success forcing the standard FB dialog and bypassing the FB app
(see iOS: Connect to Facebook without leaving the app for authorization)
My new problem is that I cannot seem to switch FB users within the app. When I click the "Login with Facebook" button from within my app, it quickly brings up the FB dialog, dissappears, and always logs me back in with the previous user (meaning I have no way to switch FB users).
I've check both Safari and the FB app, and neither are logged in. Do I have to tell FB to log out the previous user before a new user/pass is prompted?
Thanks
Your implementation probably saves user's access token in NSUserDefaults. If it is so - you just need to delete it from NSUserDefaults any time there is a logout or you're switching users.
Also if needed you are able to deauthorize the user by making a DELETE graph API call to uid/permissions.
hope this helps