Display a notice when the user does not have any notification.

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

@@ -16,6 +16,7 @@ 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.R;
@@ -74,6 +75,11 @@ public class NotificationsFragment extends Fragment implements View.OnCreateCont
      */
     private ProgressBar mLoadingProgress;
 
+    /**
+     * No notification notice
+     */
+    private TextView mNoNotifNotice;
+
     /**
      * User page opener
      */
@@ -108,6 +114,10 @@ public class NotificationsFragment extends Fragment implements View.OnCreateCont
         //Get loading progress view
         mLoadingProgress = view.findViewById(R.id.loading_progress);
 
+        //Get the "no notification" notice
+        mNoNotifNotice = view.findViewById(R.id.no_notification_notification_notice);
+        mNoNotifNotice.setVisibility(View.GONE);
+
         //Delete all the notifications action
         mDeleteNotificationsBtn = view.findViewById(R.id.delete_all_notif_btn);
         mDeleteNotificationsBtn.setOnClickListener(new View.OnClickListener() {
@@ -272,6 +282,9 @@ public class NotificationsFragment extends Fragment implements View.OnCreateCont
         //Set context menu creator
         mNotificationsListView.setOnCreateContextMenuListener(this);
         mNotificationsListView.setOnItemClickListener(this);
+
+        //Check if there is not any notification to display the "no notification" notice
+        updateNoNotifNotif();
     }
 
     @Override
@@ -316,6 +329,9 @@ public class NotificationsFragment extends Fragment implements View.OnCreateCont
         mNotificationsList.remove(pos);
         mNotificationsAdapter.notifyDataSetChanged();
 
+        //Check if the "no notification" notice has to be shown
+        updateNoNotifNotif();
+
         //Delete the notification from the server
         new AsyncTask<Integer, Void, Boolean>(){
 
@@ -362,4 +378,11 @@ public class NotificationsFragment extends Fragment implements View.OnCreateCont
 
         }
     }
+
+    /**
+     * Update the visibility status of the no notification status
+     */
+    private void updateNoNotifNotif(){
+        mNoNotifNotice.setVisibility(mNotificationsList.size() == 0 ? View.VISIBLE : View.GONE);
+    }
 }

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

@@ -11,6 +11,15 @@
         android:layout_gravity="center"
         android:layout_marginTop="10dp"/>
 
+    <!-- No notification notice -->
+    <TextView
+        android:id="@+id/no_notification_notification_notice"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/notice_no_notification"
+        android:layout_gravity="center"
+        android:layout_marginTop="10dp"/>
+
     <!-- Notifications list -->
     <ListView
         android:id="@+id/notificcation_list"

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

@@ -173,4 +173,5 @@
     <string name="button_reject_friend_request">Reject request</string>
     <string name="err_get_friendship_status">An error occurred while retrieving friendship status!</string>
     <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>
 </resources>