public async Task <FacebookResponse <bool> > LoginAsync(string[] permissions, FacebookPermissionType permissionType = FacebookPermissionType.Read)
{
var retVal = IsLoginSessionActive;
FacebookActionStatus status = FacebookActionStatus.Error;
if (!HasPermissions(permissions))
{
var window = UIApplication.SharedApplication.KeyWindow;
var vc = window.RootViewController;
while (vc.PresentedViewController != null)
{
vc = vc.PresentedViewController;
}
LoginManagerLoginResult result = await(permissionType == FacebookPermissionType.Read ? loginManager.LogInWithReadPermissionsAsync(permissions, vc) : loginManager.LogInWithPublishPermissionsAsync(permissions, vc));
if (result.IsCancelled)
{
retVal = false;
status = FacebookActionStatus.Canceled;
}
else
{
retVal = HasPermissions(result.GrantedPermissions.Select(p => $"{p}").ToArray());
NSUserDefaults.StandardUserDefaults.SetString(result.Token.TokenString, FBAccessTokenKey);
NSUserDefaults.StandardUserDefaults.SetValueForKey(result.Token.ExpirationDate, FBAccessTokenExpirationDateKey);
NSUserDefaults.StandardUserDefaults.SetString(result.Token.UserId, FBUserIdKey);
NSUserDefaults.StandardUserDefaults.Synchronize();
status = retVal ? FacebookActionStatus.Completed : FacebookActionStatus.Unauthorized;
}
}
else
{
status = FacebookActionStatus.Completed;
}
var fbArgs = new FBEventArgs <bool>(retVal, status);
OnLogin(this, fbArgs);
pendingAction?.Execute();
pendingAction = null;
return(new FacebookResponse <bool>(fbArgs));
}
public async Task <FacebookResponse <bool> > LoginAsync(string[] permissions, FacebookPermissionType permissionType = FacebookPermissionType.Read)
{
var retVal = IsLoggedIn;
FacebookActionStatus status = FacebookActionStatus.Error;
if (!retVal || !HasPermissions(permissions))
{
var window = UIApplication.SharedApplication.KeyWindow;
var vc = window.RootViewController;
while (vc.PresentedViewController != null)
{
vc = vc.PresentedViewController;
}
LoginManagerLoginResult result = await(permissionType == FacebookPermissionType.Read ? loginManager.LogInWithReadPermissionsAsync(permissions, vc) : loginManager.LogInWithPublishPermissionsAsync(permissions, vc));
if (result.IsCancelled)
{
retVal = false;
status = FacebookActionStatus.Canceled;
}
else
{
//result.GrantedPermissions.h
retVal = HasPermissions(result.GrantedPermissions.Select(p => $"{p}").ToArray());
status = retVal ? FacebookActionStatus.Completed : FacebookActionStatus.Unauthorized;
}
}
else
{
status = FacebookActionStatus.Completed;
}
var fbArgs = new FBEventArgs <bool>(retVal, status);
OnLogin(this, fbArgs);
pendingAction?.Execute();
pendingAction = null;
return(new FacebookResponse <bool>(fbArgs));
}
public static void Initialize(Activity activity)
{
mLogger = AppEventsLogger.NewLogger(Android.App.Application.Context as Android.App.Application);
mCallbackManager = CallbackManagerFactory.Create();
CurrentActivity = activity;
loginCallback = new FacebookCallback <LoginResult>
{
HandleSuccess = loginResult =>
{
if (loginResult.AccessToken != null)
{
var fbArgs = new FBEventArgs <bool>(true, FacebookActionStatus.Completed);
_onLogin?.Invoke(CrossFacebookClient.Current, fbArgs);
_loginTcs?.TrySetResult(new FacebookResponse <bool>(fbArgs));
pendingAction?.Execute();
pendingAction = null;
}
},
HandleCancel = () =>
{
var fbArgs = new FBEventArgs <bool>(false, FacebookActionStatus.Canceled, "User cancelled facebook operation");
_onLogin?.Invoke(CrossFacebookClient.Current, fbArgs);
_loginTcs?.TrySetResult(new FacebookResponse <bool>(fbArgs));
//Handle any cancel the user has perform
Console.WriteLine("User cancelled facebook login operation");
pendingAction?.Execute();
pendingAction = null;
},
HandleError = loginError =>
{
var fbArgs = new FBEventArgs <bool>(false, FacebookActionStatus.Error, loginError.ToString());
_onLogin?.Invoke(CrossFacebookClient.Current, fbArgs);
_loginTcs?.TrySetResult(new FacebookResponse <bool>(fbArgs));
//Handle any error happends here
Console.WriteLine("Operation throws an error: " + loginError.ToString());
pendingAction?.Execute();
pendingAction = null;
}
};
shareCallback = new FacebookCallback <SharerResult>
{
HandleSuccess = shareResult =>
{
if (shareResult.PostId != null)
{
Dictionary <string, object> parameters = new Dictionary <string, object>();
parameters.Add("postId", shareResult.PostId);
var fbArgs = new FBEventArgs <Dictionary <string, object> >(parameters, FacebookActionStatus.Completed);
_onSharing?.Invoke(CrossFacebookClient.Current, fbArgs);
_shareTcs?.TrySetResult(new FacebookResponse <Dictionary <string, object> >(fbArgs));
}
},
HandleCancel = () =>
{
var fbArgs = new FBEventArgs <Dictionary <string, object> >(null, FacebookActionStatus.Canceled, "User cancelled facebook operation");
_onSharing?.Invoke(CrossFacebookClient.Current, fbArgs);
_shareTcs?.TrySetResult(new FacebookResponse <Dictionary <string, object> >(fbArgs));
},
HandleError = shareError =>
{
var fbArgs = new FBEventArgs <Dictionary <string, object> >(null, FacebookActionStatus.Error, shareError.Message);
_onSharing?.Invoke(CrossFacebookClient.Current, fbArgs);
_shareTcs?.TrySetResult(new FacebookResponse <Dictionary <string, object> >(fbArgs));
}
};
appInviteCallback = new FacebookCallback <AppInviteDialog.Result>()
{
HandleSuccess = Result =>
{
Dictionary <string, object> parameters = new Dictionary <string, object>();
var extras = Result.Data;
if (extras != null && !extras.IsEmpty)
{
foreach (var key in extras.KeySet())
{
parameters.Add(key, $"{extras.Get(key)}");
}
}
var fbArgs = new FBEventArgs <Dictionary <string, object> >(parameters, FacebookActionStatus.Completed);
_onAppInvite?.Invoke(CrossFacebookClient.Current, fbArgs);
_appInviteTcs?.TrySetResult(new FacebookResponse <Dictionary <string, object> >(fbArgs));
},
HandleCancel = () =>
{
var fbArgs = new FBEventArgs <Dictionary <string, object> >(null, FacebookActionStatus.Canceled, "User cancelled facebook operation");
_onAppInvite?.Invoke(CrossFacebookClient.Current, fbArgs);
_appInviteTcs?.TrySetResult(new FacebookResponse <Dictionary <string, object> >(fbArgs));
},
HandleError = appInviteError =>
{
var fbArgs = new FBEventArgs <Dictionary <string, object> >(null, FacebookActionStatus.Error, appInviteError.Message);
_onAppInvite?.Invoke(CrossFacebookClient.Current, fbArgs);
_appInviteTcs?.TrySetResult(new FacebookResponse <Dictionary <string, object> >(fbArgs));
}
};
LoginManager.Instance.RegisterCallback(mCallbackManager, loginCallback);
}
public async Task <FacebookResponse <bool> > LoginAsync(string[] permissions, FacebookPermissionType permissionType = FacebookPermissionType.Read)
{
_loginTcs = new TaskCompletionSource <FacebookResponse <bool> >();
var retVal = IsLoginSessionActive;
FacebookActionStatus status = FacebookActionStatus.Error;
if (!HasPermissions(permissions))
{
var window = UIApplication.SharedApplication.KeyWindow;
var vc = window.RootViewController;
while (vc.PresentedViewController != null)
{
vc = vc.PresentedViewController;
}
loginManager.LogIn(permissions, vc, (result, error) =>
{
if (error == null)
{
if (result.IsCancelled)
{
retVal = false;
status = FacebookActionStatus.Canceled;
}
else
{
retVal = HasPermissions(result.GrantedPermissions.Select(p => $"{p}").ToArray());
NSUserDefaults.StandardUserDefaults.SetString(result.Token.TokenString, FBAccessTokenKey);
NSUserDefaults.StandardUserDefaults.SetValueForKey(result.Token.ExpirationDate, FBAccessTokenExpirationDateKey);
NSUserDefaults.StandardUserDefaults.SetString(result.Token.UserId, FBUserIdKey);
NSUserDefaults.StandardUserDefaults.Synchronize();
status = retVal ? FacebookActionStatus.Completed : FacebookActionStatus.Unauthorized;
}
}
else
{
retVal = false;
status = FacebookActionStatus.Error;
}
var fbArgs = new FBEventArgs <bool>(retVal, status);
OnLogin?.Invoke(CrossFacebookClient.Current, fbArgs);
_loginTcs?.TrySetResult(new FacebookResponse <bool>(fbArgs));
pendingAction?.Execute();
pendingAction = null;
});
}
else
{
var fbArgs = new FBEventArgs <bool>(retVal, FacebookActionStatus.Completed);
OnLogin?.Invoke(CrossFacebookClient.Current, fbArgs);
_loginTcs?.TrySetResult(new FacebookResponse <bool>(fbArgs));
pendingAction?.Execute();
pendingAction = null;
}
return(await _loginTcs.Task);
}