Android Facebook SDK: Check if the user is logged in or not

Question

I\'m have a feature on my Android app where the user authorizes the app and shares a link.

I also need to give an option for the user to logout of facebook and I nee

Answer 1

For Facebook Android SDK 4.x you have to use the "AccessToken.getCurrentAccessToken()" as said by @Diljeet but his check didn't work for me, I finally checked it by doing:

Activity "onCreate":

facebookAccessToken = AccessToken.getCurrentAccessToken();

To check if the session is still active (I made it in the "onResume" method but do it where you need):

  if(facebookAccessToken != null){
        sessionExpired = facebookAccessToken.isExpired();
  }else{
        sessionExpired = true;
  }

More info in https://developers.facebook.com/docs/facebook-login/android

Answer 2

Note to readers: This is now deprecated in the new FB 3.0 SDK.

facebook.isSessionValid() returns true if user is logged in, false if not.

Answer 3

Android Studio with :

compile 'com.facebook.android:facebook-android-sdk:4.0.1'

then check login like as:

private void facebookPost() {
    //check login
    AccessToken accessToken = AccessToken.getCurrentAccessToken();
    if (accessToken == null) {
        Log.d(TAG, ">>>" + "Signed Out");
    } else {
        Log.d(TAG, ">>>" + "Signed In");
    }
}

Answer 4

I was using FB sdk for just for login.. Facebook developers reject my app, Because whenever user login, I send logout.. I dont matter user profile data... I just use FB for login.. FB tells if user login... dont send lgout...

I find Hacking way... Now my app doesnot send logout whenever user login.... Whatever user login with,Google,Facebook,or normal.. When they click logout... In this three condition I use LoginManager.getInstance().logOut();

No matter which platform they use... There is no crash :)