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Created attachment 11271 [details]
When using the Facebook iOS SDK form the Component store, https://components.xamarin.com/view/facebookios, and running the sample (attached), if you open the app, log in to a Facebook account, and then terminate the app (not just close it, but kill it by double tapping home screen and sliding the app up), when the app is relaunched, the user needs to log in again.
Running Facebooks native Obj-C sample "ShareIt", available in the SDK sample folder (https://developers.facebook.com/docs/ios) I note that log in is maintained after termination the app and relaunching.
## Steps to reproduce
1. Open the attached sample (unchanged sample from the Component) and restore packages. This should restore the latest update of the SDK, version 4.1.2.
2. Run the project in Release configuration to install the app to a device / simulator.
3. Press "Stop" in Xamarin studio (to avoid any odd behavior while add is connected)
4. Relaunch the app by tapping on the icon on the simulator/device.
5. Log in to a Facebook account.
6. Close and kill the app by double clicking the home button and sliding the app thumbnail up to kill it.
7. Relaunch the app.
Expected result: User will still be logged in,
Actual result: User is not logged in.
## My environment
=== Xamarin Studio ===
Version 5.9.1 (build 3)
Installation UUID: 2dc9022f-f9a8-424f-8284-bf224cbbfde0
Mono 4.0.0 ((detached/d136b79)
GTK+ 2.24.23 (Raleigh theme)
Package version: 400000143
=== Apple Developer Tools ===
Xcode 6.3.2 (7718)
=== Xamarin.Mac ===
Version: 220.127.116.112 (Business Edition)
=== Xamarin.Android ===
Version: 18.104.22.168 (Business Edition)
Android SDK: /Users/apple/Library/Developer/Xamarin/android-sdk-mac_x86
Supported Android versions:
2.3 (API level 10)
4.0.3 (API level 15)
4.1 (API level 16)
4.2 (API level 17)
4.3 (API level 18)
4.4 (API level 19)
4.4.87 (API level 20)
5.0 (API level 21)
Java SDK: /usr
java version "1.7.0_79"
Java(TM) SE Runtime Environment (build 1.7.0_79-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode)
=== Xamarin Android Player ===
Version: Unknown version
Location: /Applications/Xamarin Android Player.app
=== Xamarin.iOS ===
Version: 22.214.171.1247 (Business Edition)
Build date: 2015-04-27 04:38:13-0400
=== Build Information ===
Release ID: 509010003
Git revision: aad75a6e7e48f18120ce41f47d0ff2c6216f49c3
Build date: 2015-05-08 12:46:18-04
Xamarin addins: 1246b3044cbb7f56a217334f8fc5489ef8eefe3f
=== Operating System ===
Mac OS X 10.10.3
Darwin Jons-iMac.local 14.3.0 Darwin Kernel Version 14.3.0
Mon Mar 23 11:59:05 PDT 2015
If you want to keep logged in your app, even after you kill your app, in the FinishedLaunching method in your AppDelegate file, you need to return:
return ApplicationDelegate.SharedInstance.FinishedLaunching (app, options);
ApplicationDelegate is a class within the Facebook.CoreKit namespace. This class handle the login of your app before the first view is loaded.
I am re-opening and changing this to an enhancement request.
I am under the impression that the Components team is responsible for its own documentation. If so, I think that this is something that would be good to note in the "getting started" page for this component, as it is not clear from the current documentation.
I updated the docs for Facebook iOS component, also, I added a new sample.