Display a notice if the user does not have any conversation

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

@@ -17,6 +17,7 @@ import android.view.ViewGroup;
 import android.widget.AdapterView;
 import android.widget.ListView;
 import android.widget.ProgressBar;
+import android.widget.TextView;
 import android.widget.Toast;
 
 import org.communiquons.android.comunic.client.ui.activities.MainActivity;
@@ -64,6 +65,11 @@ public class ConversationsListFragment extends Fragment implements AdapterView.O
      */
     private ConversationsListHelper conversationsListHelper;
 
+    /**
+     * No conversation notice
+     */
+    private TextView mNoConversationNotice;
+
     /**
      * Conversations ListView
      */
@@ -114,6 +120,10 @@ public class ConversationsListFragment extends Fragment implements AdapterView.O
         //Get progress bar wheel
         progressBar = view.findViewById(R.id.fragment_conversationslist_progressbar);
 
+        //Get no conversation notice
+        mNoConversationNotice = view.findViewById(R.id.no_conversation_notice);
+        mNoConversationNotice.setVisibility(View.GONE);
+
         //Refresh conversations list
         refresh_conversations_list();
 
@@ -307,6 +317,9 @@ public class ConversationsListFragment extends Fragment implements AdapterView.O
 
         //Remove progress bar
         display_progress_bar(false);
+
+        //Update the visibility of the no conversation notice
+        updateNoConversationNotice();
     }
 
     @Override
@@ -329,7 +342,7 @@ public class ConversationsListFragment extends Fragment implements AdapterView.O
                     confirmDeleteConversation(convID);
                     return true;
 
-                //To udpate the conversation
+                //To update the conversation
                 case R.id.menu_fragment_conversationslist_item_update:
                     updateConversationListener.updateConversation(convID);
                     return true;
@@ -403,6 +416,11 @@ public class ConversationsListFragment extends Fragment implements AdapterView.O
 
             @Override
             protected void onPostExecute(Boolean result) {
+
+                //Check if the activity has been destroyed
+                if(getActivity() == null)
+                    return;
+
                 refresh_conversations_list();
 
                 //Display a toast if an error occurred
@@ -413,4 +431,12 @@ public class ConversationsListFragment extends Fragment implements AdapterView.O
             }
         }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
     }
+
+    /**
+     * Update the visibility of the "no conversation" notice message
+     */
+    private void updateNoConversationNotice(){
+        if(convList != null)
+            mNoConversationNotice.setVisibility(convList.size() == 0 ? View.VISIBLE : View.GONE);
+    }
 }

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

@@ -15,17 +15,17 @@ import android.widget.TextView;
 import android.widget.Toast;
 
 import org.communiquons.android.comunic.client.R;
-import org.communiquons.android.comunic.client.data.helpers.DatabaseHelper;
-import org.communiquons.android.comunic.client.data.helpers.ImageLoadHelper;
-import org.communiquons.android.comunic.client.data.models.AdvancedUserInfo;
-import org.communiquons.android.comunic.client.data.helpers.GetUsersHelper;
-import org.communiquons.android.comunic.client.data.models.UserInfo;
-import org.communiquons.android.comunic.client.data.models.Post;
-import org.communiquons.android.comunic.client.data.helpers.PostsHelper;
 import org.communiquons.android.comunic.client.data.arrays.PostsList;
+import org.communiquons.android.comunic.client.data.helpers.DatabaseHelper;
+import org.communiquons.android.comunic.client.data.helpers.GetUsersHelper;
+import org.communiquons.android.comunic.client.data.helpers.ImageLoadHelper;
+import org.communiquons.android.comunic.client.data.helpers.PostsHelper;
+import org.communiquons.android.comunic.client.data.models.AdvancedUserInfo;
+import org.communiquons.android.comunic.client.data.models.Post;
+import org.communiquons.android.comunic.client.data.models.UserInfo;
+import org.communiquons.android.comunic.client.ui.activities.MainActivity;
 import org.communiquons.android.comunic.client.ui.listeners.onOpenUsersPageListener;
 import org.communiquons.android.comunic.client.ui.utils.UiUtils;
-import org.communiquons.android.comunic.client.ui.activities.MainActivity;
 
 /**
  * User page fragment

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

@@ -11,6 +11,16 @@
         android:layout_height="wrap_content"
         android:layout_gravity="center"/>
 
+
+    <!-- No conversation notice -->
+    <TextView
+        android:id="@+id/no_conversation_notice"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/notice_no_conversation"
+        android:layout_gravity="center"
+        android:layout_marginTop="10dp"/>
+
     <!-- List of the conversations -->
     <ListView
         android:id="@+id/fragment_conversationslist_list"

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

@@ -175,4 +175,5 @@
     <string name="err_get_post_info">An error occurred while trying to get post information!</string>
     <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>
 </resources>