public object Observe <T>(FirebaseEventDelegate <T> handler)
{
var rootNode = databaseReference;
return((uint)rootNode.ObserveEvent(DataEventType.Value, (snapshot) =>
{
if (snapshot.Exists)
{
//FirebaseXamarinHelper.RunOnUIThread(() =>
//{
var data = snapshot.GetValue();
var snapData = DataConverter.Convert <T>(data, GetObjectFromHandler(handler));
SetObjectFromHandler(handler, snapData);
handler.OnSnapshot(snapData);
//});
}
else
{
handler.OnSnapshot(default(T));
handler?.OnError?.Invoke(new SnapshotNotFoundException());
}
}, (error) =>
{
handler?.OnError?.Invoke(new FirebaseException(error));
}));
}
public void OnDataChange(DataSnapshot snapshot)
{
if (snapshot.Exists())
{
var jsonObject = new Org.Json.JSONObject();
var val = snapshot.GetValue(jsonObject.Class);
if (val is JavaDictionary map)
{
eventDelegate.OnSnapshot(map.ToString());
}
else
{
eventDelegate.OnSnapshot(val.ToString());
}
}
else
{
eventDelegate.OnSnapshot(null);
}
}
public void OnDataChange(DataSnapshot snapshot)
{
if (snapshot.Exists())
{
//FirebaseXamarinHelper.RunOnUIThread(() =>
//{
try
{
var snapData = DataConverter.Convert <T>(snapshot.Value, GetObjectFromHandler(eventDelegate));
eventDelegate.OnSnapshot(snapData);
SetObjectFromHandler(eventDelegate, snapData);
}
catch (System.Exception ex)
{
var i = ex;
}
}
else
{
eventDelegate.OnSnapshot(default(T));
}
}
