public void GetDocument(DocumentSnapshotHandler handler)
{
var tcs = new TaskCompletionSource <IDocumentSnapshot>();
_documentReference.Get().AddOnCompleteListener(new OnCompleteHandlerListener((task) =>
{
var snapshot = !task.IsSuccessful ? null : task.Result.JavaCast <DocumentSnapshot>();
handler?.Invoke(snapshot == null ? null : new DocumentSnapshotWrapper(snapshot),
task.IsSuccessful ? null : ExceptionMapper.Map(task.Exception));
}));
}
protected override void OnCreate(Bundle savedInstanceState)
{
// Well, just config with your own name app in manifest.xml
// and yout own "google-services.json" file config from Firebase. that's all.
base.OnCreate(savedInstanceState);
Xamarin.Essentials.Platform.Init(this, savedInstanceState);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.activity_main);
fireApp = Firebase.FirebaseApp.InitializeApp(this);
fireFirestore = Firebase.Firestore.FirebaseFirestore.Instance;
fireDatabase = Firebase.Database.FirebaseDatabase.Instance;
Button btn1 = FindViewById(Resource.Id.Button1) as Button;
btn1.Click += delegate
{
// So here it's crash the App.
DocumentReference docRef = fireFirestore.Collection("collection1").Document("doc1");
docRef.Get()
.AddOnCompleteListener(this)
.AddOnFailureListener(this);
};
}
public Task <User> SearchUser(string TempEmail)
{
TaskCompletionSource <User> ResultCompletionSource = new TaskCompletionSource <User>();
DocumentReference Path = Conn.Collection(usercollection).Document(TempEmail);
Path.Get().AddOnCompleteListener(new OnCompleteEventHandleListener((Android.Gms.Tasks.Task
obj) =>
{
if (obj.IsSuccessful)
{
App.searchResult = new User();
DocumentSnapshot temp = (DocumentSnapshot)obj.Result;
if (temp.Exists())
{
var TempDictionary = temp.Data;
var searchUserResult = new User((string)temp.Id, (string)TempDictionary["username"]);
ResultCompletionSource.SetResult(searchUserResult);
}
else
{
ResultCompletionSource.SetResult(null);
}
}
}));
return(ResultCompletionSource.Task);
}
public static Task <T> GetDocumentAsync <T>(this DocumentReference reference) where T : class
{
var tcs = new TaskCompletionSource <T>();
reference
.Get()
.AddOnCompleteListener(new OnCompleteEventHandleListener((Android.Gms.Tasks.Task obj) =>
{
if (obj.IsSuccessful)
{
var res = obj.GetResult(Class.FromType(typeof(DocumentSnapshot))).JavaCast <DocumentSnapshot>();
tcs.SetResult(Cast <T>(res));
}
else
{
tcs.SetException(obj.Exception);
}
}));
return(tcs.Task);
}
public async Task <string[]> GetData()
{
FirebaseFirestore database;
string uid = FirebaseAuth.Instance.CurrentUser.Uid;
var app = FirebaseApp.Instance;
database = FirebaseFirestore.GetInstance(app);
DocumentReference docRef = database.Collection("utenti").Document(uid);
DocumentSnapshot snapshot = (DocumentSnapshot)await docRef.Get();
String data_name = snapshot.GetString("nome");
String data_lName = snapshot.GetString("cognome");
String data_email = snapshot.GetString("email");
List <string> list = new List <string>();
list.Add(data_name);
list.Add(data_lName);
list.Add(data_email);
String[] str = list.ToArray();
return(str);
}