Android + Facebook Connect not working in release build

Question

I have an Android application that allows the user to connect to his Facebook account and automatically make a post on his wall.

All this is perfectly working with t

Answer 1

I was getting the error Webpage not available fbconnect://success#access_token=... When using an existing app (Draw Something) that connects to facebook. The problem went away when I uninstalled the two different facebook apps i had installed on my phone (Galaxy note 2 with Android 4.1.2) and reinstalled the current facebook app.

Answer 2

I fixed it with the following rules (however I am no expert so there might be mistakes in there).

-keep class com.facebook.android.*
-keep class android.webkit.WebViewClient
-keep class * extends android.webkit.WebViewClient
-keepclassmembers class * extends android.webkit.WebViewClient { 
    <methods>; 
} 

Answer 3

To make facebookConnect work with an android release build you need to create a reference to the keystore file, which you have used for signing your app.

on a mac:

keytool -exportcert -alias <RELEASE_KEY_ALIAS> -keystore <RELEASE_KEY_PATH> | openssl sha1 -binary | openssl base64

on win:

keytool -exportcert -alias <RELEASE_KEY_ALIAS> -keystore <RELEASE_KEY_PATH> | openssl sha1 -binary | openssl base64

the output should be set in Android -> Key Hashes in Facebook settings

Answer 4

This is the only thing that worked for me with facebook sdk 3.0:

-keepattributes Signature

-dontwarn com.facebook.**

-dontwarn com.parse.**

-keep class com.facebook.** { *; }

-keep class com.parse.** { *; }

(got this from http://adilatwork.blogspot.com/2013/01/parse-android-sdk-facebook-and-proguard.html)