public void ReadDataOnce(List <string> branches, Action <DataSnapshot> listener)
{
try
{
var node = GetNode(branches);
if (node != null)
{
DatabaseQueryUpdateHandler handler = (snapshot) => listener(snapshot);
node.ObserveSingleEvent(DataEventType.Value, handler);
}
}
catch (Exception ex)
{
}
}
public DatabaseReference SubscribeForDataChange(List <string> branches, Action <DataSnapshot> listener)
{
try
{
var node = GetNode(branches);
if (node != null)
{
List <string> handlersList = new List <string>();
handlersList.Add(listener.Method.Name);
DatabaseQueryUpdateHandler handler = (snapshot) => listener(snapshot);
node.ObserveEvent(DataEventType.Value, handler);
}
return(node);
}
catch (Exception ex)
{
return(null);
}
}