Display a notice on friends fragment when the user does not have any friend.

app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/FriendsListFragment.java

@@ -16,6 +16,7 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.AdapterView;
 import android.widget.ListView;
+import android.widget.TextView;
 import android.widget.Toast;
 
 import org.communiquons.android.comunic.client.ui.activities.MainActivity;
@@ -93,6 +94,11 @@ public class FriendsListFragment extends Fragment
      */
     private FriendsAdapter fAdapter;
 
+    /**
+     * No friend notice
+     */
+    private TextView mNoFriendNotice;
+
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -135,6 +141,10 @@ public class FriendsListFragment extends Fragment
 
         rootView = view;
 
+        //Get the no friend notice
+        mNoFriendNotice = view.findViewById(R.id.no_friend_notice);
+        mNoFriendNotice.setVisibility(View.GONE);
+
         //Retain the fragment
         //setRetainInstance(true);
 
@@ -218,10 +228,12 @@ public class FriendsListFragment extends Fragment
             return;
         }
 
-
         //Save the list of friends
         this.friendsList = friendsList;
 
+        //Update the visibility of the no friend notice
+        updateNoFriendNoticeVisibility();
+
         //Set the adapter
         fAdapter = new FriendsAdapter(this, getActivity(), friendsList);
         ListView listView = rootView.findViewById(R.id.fragment_friendslist_listview);
@@ -384,6 +396,14 @@ public class FriendsListFragment extends Fragment
 
     }
 
+    /**
+     * Update the visibility of the no friend notice
+     */
+    private void updateNoFriendNoticeVisibility(){
+        if(friendsList != null)
+            mNoFriendNotice.setVisibility(friendsList.size() == 0 ? View.VISIBLE : View.GONE);
+    }
+
     @Override
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
 

app/src/main/res/layout/fragment_friendslist.xml

@@ -10,6 +10,15 @@
         android:layout_height="wrap_content"
         android:layout_centerHorizontal="true" />
 
+    <!-- No friend notice -->
+    <TextView
+        android:id="@+id/no_friend_notice"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/notice_no_friend"
+        android:textAlignment="center"
+        android:layout_marginTop="50dp"/>
+
     <ListView
         android:id="@+id/fragment_friendslist_listview"
         android:layout_width="match_parent"

app/src/main/res/values/strings.xml

@@ -176,4 +176,5 @@
     <string name="notice_no_notification">You do not have any notification yet.</string>
     <string name="notice_no_post_user_page">There is not any post on this page yet.</string>
     <string name="notice_no_conversation">You do not have any conversation yet.</string>
+    <string name="notice_no_friend">You do not have any friend yet.</string>
 </resources>