在Facebook身份验证后查看显示延迟

Question

我使用以下代码在Facebook身份验证后显示祝酒词

if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeFacebook]) // check Fb is configured in Settings or not
{    
      accountStore = [[ACAccountStore alloc] init]; // you have to retain ACAccountStore
      ACAccountType *fbAcc = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];
      NSString *key = @"xxxxx";
      NSDictionary *dictFB = [NSDictionary dictionaryWithObjectsAndKeys:key,ACFacebookAppIdKey,@[@"email"],ACFacebookPermissionsKey, nil];
      [accountStore requestAccessToAccountsWithType:fbAcc options:dictFB completion:^(BOOL granted, NSError *error) {
                            if (granted) {
                                NSLog(@"Perform fb registration");
                            } else {
                                NSLog(@"Facebook 1”);
                                [[Toast shared] showToast:self.view withText:@"You disabled your app from settings."];
                                NSLog(@"Facebook 2”);
                            }

                        }];
}

NSLog(@"Facebook 1”);并NSLog(@"Facebook 2”);分别执行和打印日志.但是,这两个日志之间的Toast语句在15-20秒后延迟并显示.

如果我[[Toast shared] showToast:self.view withText:@"You disabled your app from settings."];从以下完成处理程序中输出toast语句:

[accountStore requestAccessToAccountsWithType:fbAcc options:dictFB completion:^(BOOL granted, NSError *error) {
}];

它工作正常,及时显示吐司,从不延迟.任何消除延迟的解决方案？

Answer 1

我相信EDUsta所说的是正确的。尝试在主线程上调用 toast 消息。所有 UI 更改都应在主线程上处理，以避免出现奇怪的错误。尝试这个：

\n\n

[accountStore requestAccessToAccountsWithType:fbAcc options:dictFB completion:^(BOOL granted, NSError *error) {\n        if (granted) {\n            NSLog(@"Perform fb registration");\n        } else {\n            NSLog(@"Facebook 1\xe2\x80\x9d);\n                  dispatch_async(dispatch_get_main_queue(), ^{\n                    [[Toast shared] showToast:self.view withText:@"You disabled your app from settings."];\n            });\n                  NSLog(@"Facebook 2\xe2\x80\x9d);\n                        }\n\n                        }];\n

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