Adds ability to enable providers from FirebaseLoginBaseActivity

Author: abeisgoat

app/src/main/java/com/firebase/uidemo/RecyclerViewDemoActivity.java

@@ -23,6 +23,7 @@
 import com.firebase.ui.auth.core.FirebaseLoginBaseActivity;
 import com.firebase.ui.FirebaseRecyclerViewAdapter;
 import com.firebase.ui.auth.core.FirebaseLoginError;
+import com.firebase.ui.auth.core.SocialProvider;
 
 public class RecyclerViewDemoActivity extends FirebaseLoginBaseActivity {
 
@@ -90,6 +91,15 @@ public void populateViewHolder(ChatHolder chatView, Chat chat) {
         mMessages.setAdapter(mRecycleViewAdapter);
     }
 
+    @Override
+    protected void onStart() {
+        super.onStart();
+        setEnabledAuthProvider(SocialProvider.facebook);
+        setEnabledAuthProvider(SocialProvider.twitter);
+        setEnabledAuthProvider(SocialProvider.google);
+        setEnabledAuthProvider(SocialProvider.password);
+    }
+
     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
         MenuInflater inflater = getMenuInflater();

library/src/main/java/com/firebase/ui/auth/core/FirebaseLoginBaseActivity.java

@@ -95,15 +95,13 @@ public void onAuthStateChanged(AuthData authData) {
             .setRef(getFirebaseRef())
             .setHandler(mHandler);
 
-        mDialog
-            .setProviderEnabled(SocialProvider.facebook)
-            .setProviderEnabled(SocialProvider.google)
-            .setProviderEnabled(SocialProvider.twitter)
-            .setProviderEnabled(SocialProvider.password);
-
         getFirebaseRef().addAuthStateListener(mAuthStateListener);
     }
 
+    public void setEnabledAuthProvider(SocialProvider provider) {
+        mDialog.setProviderEnabled(provider);
+    }
+
     protected void onStop() {
         super.onStop();
         getFirebaseRef().removeAuthStateListener(mAuthStateListener);