每次我從Xcode運行我的應用程序時，ios facebook sdk訪問令牌會被清除嗎？

Question

使用Facebook帳戶登錄后，一切正常，除了每次啟動應用程序時令牌會自動清除之外，因此它要求我再次登錄，我在didFinishLaunchingWithOptions使用以下代碼來檢查活動會話：

if (FBSession.activeSession.state == FBSessionStateCreatedTokenLoaded) {
    NSLog(@"Found a cached session");
    // If there's one, just open the session silently, without showing the user the login UI
    [FBSession openActiveSessionWithReadPermissions:@[@"public_profile", @"email", @"user_friends",@"publish_actions,publish_stream"]
                                       allowLoginUI:NO
                                  completionHandler:
     ^(FBSession *session, FBSessionState state, NSError *error) {
         NSLog(@"session exp. = %@",session.accessTokenData.expirationDate);
         [self sessionStateChanged:session state:state error:error delegate:_delegate];

         if (error) {
             NSLog(@"error: %@",error.localizedDescription);
         }
         [[NSUserDefaults standardUserDefaults]setObject:[Utils languageSelectedStringForKey:@"Logout"] forKey:@"fbState"];
         [[NSUserDefaults standardUserDefaults]synchronize];
         [self sessionStateChanged:session state:state error:error delegate:nil];

     }];

    // If there's no cached session, we will show a login button
} else {
    [[NSUserDefaults standardUserDefaults]setObject:[Utils languageSelectedStringForKey:@"Login with Facebook"] forKey:@"fbState"];
    [[NSUserDefaults standardUserDefaults]synchronize];

    NSLog(@"no cached session -> show a login button");
    //  UIButton *loginButton = [self.customLoginViewController loginButton];
    //  [loginButton setTitle:@"Log in with Facebook" forState:UIControlStateNormal];
}

因此，將打印“發現已緩存的會話”消息，但是當我檢查會話時發現它已清除，我注意到的是未調用方法openActiveSessionWithReadPermissions ！

任何建議，請！

Answer 1

我發現了問題，我使用了錯誤的權限，該權限不允許我存儲會話，因此我如下編輯了權限：

@[@"public_profile", @"email", @"user_friends",@"publish_actions"]

因此，在我刪除publish_stream一切工作正常。