min

example/HelloWorldFacebook/proj.android/build.gradle

@@ -25,6 +25,13 @@ apply plugin: 'com.android.application'
 dependencies {
     implementation(project(':oxygine-extension'))
     implementation(project(':oxygine-lib')) { exclude module: 'oxygine-extension' }
+    
+    implementation 'com.facebook.android:facebook-android-sdk:4.+'
+    implementation(project(':oxygine-facebook')) {
+        exclude module: "support-annotations"
+        exclude module: "support-v4"
+        transitive = true
+    }
 }
 
 android {

example/HelloWorldFacebook/proj.android/src/org/oxygine/HelloWorldFacebook/MainActivity.java

@@ -1,8 +1,15 @@
 package org.oxygine.HelloWorldFacebook;
 
+import org.oxygine.facebook.FacebookAdapter;
 import org.oxygine.lib.OxygineActivity;
+import android.os.Bundle;
 
 public class MainActivity extends OxygineActivity
 {
+ 	@Override
+    protected void onCreate(Bundle savedInstanceState) {
+        addObserver(new FacebookAdapter(this));
 
+    	super.onCreate(savedInstanceState);
+    }
 }