How to display the facebook details automatically in android app as long as there is an active access token?

Question

I'm creating an android application in which i am using facebook login.I'm using graph api for this purpose.I want to display the profile picture,name and location of the logged-in user.I have a method for getting the profile information.I want to display the details each time i open my app without calling the login method each time.ie.i want to display the details automatically as long as there is an active access token.How to do this ?

My method for login is working fine.How to display the details automatically as long as there is an active access token ?

Answer 1

Use the Session object to create a new Session using your Facebook access token, and token expiry date

Answer 2

You can store user info in Shared Preferences

for example; You can save user data after login

// this Application Context  
   SharedPreferences preferences  = PreferenceManager.getDefaultSharedPreferences(this);      
   SharedPreferences.Editor editor = preferences.edit();

   editor.putString("name",retrievedName);

   editor.putString("picture",retrievedPicture);

   editor.putString("location",retrivedLocation);

   editor.commit();

Then you can check easily if user authenticated getString(String key, String defValue)

 //if it is null login again
 String name = preferences.getString("name",null);

Or you can use sqlite as well but if you are developing native app it would be better to use facebook android sdk