void LoginManagerLoginHandler(LoginManagerLoginResult result, NSError error)
{
if (result.IsCancelled)
{
completionSource.TrySetResult(new FacebookLoginResult {
LoginState = FacebookLoginState.Canceled
});
}
else if (error != null)
{
completionSource.TrySetResult(new FacebookLoginResult {
LoginState = FacebookLoginState.Failed, ErrorString = error.LocalizedDescription
});
}
else
{
loginResult = new FacebookLoginResult
{
Token = result.Token.TokenString,
UserId = result.Token.UserID,
ExpireAt = result.Token.ExpirationDate.ToDateTime()
};
var request = new GraphRequest(@"me", new NSDictionary(@"fields", @"email"));
request.Start(GetEmailRequestHandler);
}
}
public void OnCompleted(GraphResponse response)
{
if (response?.JSONObject == null)
{
completionSource?.TrySetResult(new FacebookLoginResult {
LoginState = FacebookLoginState.Canceled
});
}
else
{
loginResult = new FacebookLoginResult
{
FirstName = Profile.CurrentProfile.FirstName,
LastName = Profile.CurrentProfile.LastName,
Email = response.JSONObject.Has("email") ? response.JSONObject.GetString("email") : string.Empty,
ImageUrl = response.JSONObject.GetJSONObject("picture")?.GetJSONObject("data")?.GetString("url"),
Token = AccessToken.CurrentAccessToken.Token,
UserId = AccessToken.CurrentAccessToken.UserId,
ExpireAt = FromJavaDateTime(AccessToken.CurrentAccessToken?.Expires?.Time),
LoginState = FacebookLoginState.Success
};
completionSource?.TrySetResult(loginResult);
}
}
/// <summary>
/// Signs the into facebook.
/// </summary>
/// <returns>Task<FacebookLoginResult>.</returns>
public async Task <FacebookLoginResult> SignIntoFacebook()
{
var login = new FacebookLoginResult();
if (AccessToken.CurrentAccessToken == null ||
(AccessToken.CurrentAccessToken != null && AccessToken.CurrentAccessToken.IsExpired))
{
// LoginManager.Instance.LogOut();
var taskCompletionSource = new TaskCompletionSource <FacebookLoginResult>();
var activity = Xamarin.Forms.Forms.Context as MainActivity;
var loginCallback = new FacebookCallback <LoginResult>
{
HandleSuccess = loginResult =>
{
UpdateFacebookResult(login);
taskCompletionSource.SetResult(login);
},
HandleCancel = () =>
{
System.Diagnostics.Debug.WriteLine("fbcancel");
UpdateFacebookResult(login, true, false);
taskCompletionSource.SetResult(login);
},
HandleError = loginError =>
{
System.Diagnostics.Debug.WriteLine("fberror");
login.Error = loginError.Message;
UpdateFacebookResult(login, true, true);
taskCompletionSource.SetResult(login);
}
};
if (activity == null)
{
return(null);
}
//LoginManager.Instance.RegisterCallback(activity.CallbackManager, loginCallback);
LoginManager.Instance.LogInWithReadPermissions(activity, _readPermissions);
return(await taskCompletionSource.Task);
}
UpdateFacebookResult(login);
return(login);
}
/// <summary>
/// Updates the model.
/// </summary>
/// <param name="login">The login.</param>
/// <param name="iscancelled">if set to <c>true</c> [iscancelled].</param>
/// <param name="iserror">if set to <c>true</c> [iserror].</param>
private void UpdateFacebookResult(FacebookLoginResult login, bool iscancelled = false, bool iserror = false)
{
var token = AccessToken.CurrentAccessToken != null;
if (token)
{
login.Token = AccessToken.CurrentAccessToken?.Token;
login.ExpirationDate = AccessToken.CurrentAccessToken != null
? JavaToCsharpDateTime(AccessToken.CurrentAccessToken?.Expires.Time)
: null;
login.UserId = AccessToken.CurrentAccessToken?.UserId;
login.IsCancelled = iscancelled;
}
else
{
login.IsCancelled = iscancelled;
}
}
public Task <FacebookLoginResult> Login()
{
var result = new TaskCompletionSource <FacebookLoginResult>();
var auth = new OAuth1Authenticator(
"wDDuNu2auh21NLhWQu2zOdhSc",
"QYeJH178DVJB6hSovnbWoTueHKo87WGNAPNLMmCkfcNctlaHEw",
new Uri("https://api.twitter.com/oauth/request_token"),
new Uri("https://api.twitter.com/oauth/authorize"),
new Uri("https://api.twitter.com/oauth/access_token"),
new Uri("http://mobile.twitter.com/home")
)
{
AllowCancel = true
};
auth.Completed += async(s, eventArgs) =>
{
UIApplication.SharedApplication.KeyWindow.RootViewController.DismissViewController(true, null);
var twitterLoginResult = new FacebookLoginResult();
if (eventArgs.IsAuthenticated)
{
var loggedInAccount = eventArgs.Account;
twitterLoginResult = new FacebookLoginResult
{
Name = loggedInAccount.Properties["screen_name"],
AccessToken = loggedInAccount.Properties["oauth_token"],
UserId = loggedInAccount.Properties["user_id"]
};
twitterLoginResult.Email = await GetTwitterUserMail(loggedInAccount);
}
twitterLoginResult.IsLoggedIn = eventArgs.IsAuthenticated;
result.SetResult(twitterLoginResult);
};
UIApplication.SharedApplication.KeyWindow.RootViewController
.PresentViewController(auth.GetUI(), true, null);
return(result.Task);
}
public Task <FacebookLoginResult> Login()
{
var result = new TaskCompletionSource <FacebookLoginResult>();
var auth = new OAuth1Authenticator(
"wDDuNu2auh21NLhWQu2zOdhSc",
"QYeJH178DVJB6hSovnbWoTueHKo87WGNAPNLMmCkfcNctlaHEw",
new Uri("https://api.twitter.com/oauth/request_token"),
new Uri("https://api.twitter.com/oauth/authorize"),
new Uri("https://api.twitter.com/oauth/access_token"),
new Uri("http://mobile.twitter.com")
)
{
AllowCancel = true
};
var context = Forms.Context;
var intent = auth.GetUI(context);
context.StartActivity(intent);
auth.Completed += async(s, eventArgs) =>
{
var twitterLoginResult = new FacebookLoginResult();
if (eventArgs.IsAuthenticated)
{
var loggedInAccount = eventArgs.Account;
twitterLoginResult = new FacebookLoginResult
{
Name = loggedInAccount.Properties["screen_name"],
AccessToken = loggedInAccount.Properties["oauth_token"],
UserId = loggedInAccount.Properties["user_id"]
};
twitterLoginResult.Email = await GetTwitterUserMail(loggedInAccount);
}
twitterLoginResult.IsLoggedIn = eventArgs.IsAuthenticated;
result.SetResult(twitterLoginResult);
};
return(result.Task);
}
