public static FbAccessToken GetCurrentAccessToken()
{
try
{
var token = new FbAccessToken();
if (Application.Current.Properties.ContainsKey("fb_access_token_string"))
{
token.Token = (string)Application.Current.Properties["fb_access_token_string"];
token.ApplicationId = (string)Application.Current.Properties["fb_access_token_app_id"];
token.UserId = (string)Application.Current.Properties["fb_access_token_user_id"];
token.ExpirationTime = (DateTime)Application.Current.Properties["fb_access_token_expiry"];
token.LastRefreshTime = (DateTime)Application.Current.Properties["fb_access_token_refresh"];
return(token);
}
else
{
return(null);
}
}
catch (Exception)
{
System.Diagnostics.Debug.WriteLine("No access token found");
return(null);
}
}
public async Task <bool> SocialLoginFacebook()
{
try
{
FbAccessToken token = await Xamarin.Forms.DependencyService.Get <IFacebookLogin>().LogIn(permissions);
if (token != null)
{
// save token
await token.Save();
IGraphRequest request = Xamarin.Forms.DependencyService.Get <IGraphRequest>().NewRequest(token, "/me", parameters);
IGraphResponse response = await request.ExecuteAsync();
SocialModel socialModel = GetFBData(JObject.Parse(response.RawResponse));
socialModel.AuthType = AuthType.Facebook;
await RegisterAndUpdate(socialModel);
return(true);
}
else
{
System.Diagnostics.Debug.WriteLine("======================token was null");
}
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine(e.ToString());
}
return(false);
}
public async void Logout()
{
Helpers.Settings.Current.UserName = string.Empty;
Helpers.Settings.Current.SocialUserID = string.Empty;
if (Helpers.Settings.Current.UserAuth == AuthType.Facebook)
{
await FbAccessToken.Current.Logout();
FbAccessToken.Clear();
var account = AccountStore.Create().FindAccountsForService("Facebook").FirstOrDefault();
if (account != null)
{
AccountStore.Create().Delete(account, "Facebook");
}
}
if (Helpers.Settings.Current.UserAuth == AuthType.Twitter)
{
var account = AccountStore.Create().FindAccountsForService(AccountServiceTwitter).FirstOrDefault();
if (account != null)
{
AccountStore.Create().Delete(account, AccountServiceTwitter);
}
}
if (Helpers.Settings.Current.UserAuth == AuthType.Google)
{
var account = AccountStore.Create().FindAccountsForService(AccountServiceGoogle).FirstOrDefault();
if (account != null)
{
AccountStore.Create().Delete(account, AccountServiceGoogle);
}
}
await m_NavigationService.NavigateAsync("/LoginPage");
}
public async Task <bool> HandleAlreadyLoggedIn(FbAccessToken token)
{
IGraphRequest request = Xamarin.Forms.DependencyService.Get <IGraphRequest>().NewRequest(token, "/me", parameters);
IGraphResponse response = await request.ExecuteAsync();
if (response.RawResponse != null)
{
SocialModel socialModel = GetFBData(JObject.Parse(response.RawResponse));
socialModel.AuthType = AuthType.Facebook;
await RegisterAndUpdate(socialModel);
return(true);
}
return(false);
}
public static void Clear()
{
_currentAccessToken = null;
}