public void ClearMessages()
{
if (ReatimeListener != null)
{
ReatimeListener.Remove();
ReatimeListener = null;
}
this.messages = new ObservableCollection <Message>();
}
public static async Task SetCurrentAsync(IDocumentReference?doc)
{
if (doc?.Id != Current?.Doc.Id || doc is null)
{
listener?.Remove();
if (doc is null)
{
if (DonorUser.Current is null)
{
Current = null;
previousUID = null;
CurrentUpdated?.Invoke(null);
CurrentChanged?.Invoke(null);
return;
}
else
{
var bundleCollection = DonorUser.Current.Doc.Collection("DonationBundles");
DonationBundle bundle = new DonationBundle
{
StripeStatus = StripeStatus.Pending,
GiftAidState = DonorUser.Current.GiftAidEnabled ? GiftAidState.Unclaimed : GiftAidState.Ineligible,
Amount = 0,
UserConfirmed = false
};
doc = await bundleCollection.AddAsync(bundle);
await DonorUser.Current.Doc.UpdateAsync(new { CurrentDonationBundle = doc });
}
}
listener = doc.AddSnapshotListener((snapshot, ex) => OnCurrentSnapshot(snapshot));
}
}
private static void MonitorOwnUserProfile(Firebase.CloudFirestore.DocumentReference refer)
{
if (_listener != null)
{
_listener.Remove();
}
_listener = refer.AddSnapshotListener((changedSnapshot, error) =>
{
var data = changedSnapshot.Data[new NSString("isNeedNotification")] as NSNumber;
if (data.BoolValue)
{
var userProfile = LoadSaveData <UserProfile>(changedSnapshot.Data);
App.NotifyCloudDataChanged(userProfile);
}
});
}
public static void SetCurrent(string?uid)
{
if (uid != Current?.UID)
{
listener?.Remove();
if (string.IsNullOrEmpty(uid))
{
Current = null;
previousUID = null;
CurrentUpdated?.Invoke(null);
CurrentChanged?.Invoke(null);
return;
}
var doc = Firestore.Collection("Users").Document(uid !);
listener = doc.AddSnapshotListener((snapshot, ex) => OnCurrentSnapshot(snapshot));
}
}
// Get notes data to be shown in TableView
async Task GetNotes()
{
// Stop listening for changes from Firebase Cloud Firestore
pendingChangesListener?.Remove();
pendingChangesListener?.Dispose();
pendingChangesListener = null;
notes.Clear();
var notesQuery = await notesCollection.OrderedBy("lastModified", true)
.GetDocumentsAsync();
foreach (var note in notesQuery.Documents)
{
// When you create a new note, sometimes the data hasn't
// been written in Firestore yet, so, we keep listening
// until the data is written.
if (note.Metadata.HasPendingWrites)
{
pendingChangesListener = note.Reference.AddSnapshotListener(DataSavedOnFirestore);
return;
}
var data = note.Data;
var title = data ["title"]?.ToString();
var content = data ["content"]?.ToString();
var created = data ["created"] as NSDate;
var lastModified = data ["lastModified"] as NSDate;
notes.Add(new Note {
Id = note.Id,
Title = title,
Content = content,
Created = AppDelegate.GetFormattedDate(created),
LastModified = AppDelegate.GetFormattedDate(lastModified)
});
}
InvokeOnMainThread(() => TableView.ReloadData());
}
public override void Destroy()
{
base.Destroy();
_registration.Remove();
}
