Facebook SSO不登录（isSessionValid一直返回NO） [英] Facebook SSO Not Logging In (isSessionValid returns NO all the time)

问题描述

我正在使用Facebook Connect与我的应用程序。一切都设置好了，所有的代码都可以工作。昨天，我可以使用我的应用登录，然后发布内容等功能。我不记得做任何真正的改变。现在，像往常一样，每当我按登录，它会到一个Safari页面，我必须确认我想使用这个应用程序，它说我正在登录谁。如果我按OK，它可以回到应用程序。在这个整个过程中，在应用程序中，Facebook从不登录。记住：只要这个工作，我不要再做任何改变！这是连接如何开始：

   - （IBAction）connectToFacebook {
 
 [loginButton setImage： UIImage imageNamed：@[e-mail]] forState：UIControlStateNormal]; 
 facebook = [[Facebook alloc] initWithAppId：@387500177929927andDelegate：self]; 
 NSUserDefaults * defaults = [NSUserDefaults standardUserDefaults]; 
 if（[defaults objectForKey：@FBAccessTokenKey]&&&&&&默认对象ForKey：@FBExpirationDateKey]）{
 facebook.accessToken = [defaults objectForKey：@FBAccessTokenKey 
 facebook.expirationDate = [defaults objectForKey：@FBExpirationDateKey]; 
} 
 
 if（！[facebook isSessionValid]）{
 [facebook authorize：nil]; 
} 
 NSTimer * timer = [NSTimer scheduledTimerWithTimeInterval：2.0 target：self selector：@selector（makeVisibleButtons）userInfo：nil repeats：NO]; 
 [timer setAccessibilityHint：@timer]; 
} 
 
  - （BOOL）应用程序：（UIApplication *）应用程序didFinishLaunchingWithOptions：（NSDictionary *）launchOptions {
 //只是手柄URL可以被调用
 
返回YES; 
 
 
} 
  

所以我按一个按钮来调用IBAction为。 NSTimer不相关，只是为了出现一些按钮。现在，这两种方法永远不会被调用（当我登录时）：

   - （BOOL）应用程序：（UIApplication *）应用程序openURL：（NSURL *）url 
 sourceApplication：（NSString *）sourceApplication注释：（id）注释{
 ConnectToFB * connect = [[ConnectToFB alloc] init]; 
 return [connect.facebook handleOpenURL：url]; 
 NSLog（@url）; 
 [连接版本]; 
} 
 
  - （void）fbDidLogin {
 
 NSLog（@登录）; 
 
 NSUserDefaults * defaults = [NSUserDefaults standardUserDefaults]; 
 [defaults setObject：[facebook accessToken] forKey：@FBAccessTokenKey]; 
 [defaults setObject：[facebook expirationDate] forKey：@FBExpirationDateKey]; 
 [默认同步]; 
} 
  

应用程序ID是最新的，我的信息plist中的url方案也是最新。这里有什么问题？

解决方案

看到这里[输入链接描述] [1]

[1]：故事链接流程使用SSO facebook - openURL不被调用。

您可以在AppDelegate中没有Facebook实例

I am using Facebook Connect with my app. Everything is set up, all the code WAS working. Around yesterday, I could login with my app, then post stuff and other functions. I don't recall making any real changes. Now, as usual, whenever I press login and it goes to a Safari page where I have to confirm that I want to use this app and it says who I am logging in as. If I press ok it goes back to the app. During this whole process, in the app, Facebook never logs in. REMEMBER: JUST YESTERDAY THIS WORKS, I DONT RECALL MAKING ANY CHANGES! Here is how the connection starts:

-(IBAction)connectToFacebook {

  [loginButton setImage:[UIImage imageNamed:@"[e-mail]"]  forState:UIControlStateNormal];
  facebook = [[Facebook alloc] initWithAppId:@"387500177929927" andDelegate:self];
  NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
  if ([defaults objectForKey:@"FBAccessTokenKey"] && [defaults   objectForKey:@"FBExpirationDateKey"]) {
    facebook.accessToken = [defaults objectForKey:@"FBAccessTokenKey"];
    facebook.expirationDate = [defaults objectForKey:@"FBExpirationDateKey"];
  }

  if (![facebook isSessionValid]) {
    [facebook authorize:nil];
  }    
  NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:2.0 target:self  selector:@selector(makeVisibleButtons) userInfo:nil repeats:NO];
  [timer setAccessibilityHint:@"timer"];
}

-(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
  // JUST SO THAT HANDLE URL CAN GET CALLED

 return YES;


}

So I press a button to call this IBAction. The NSTimer is not related, its just for the appearance of some buttons. Now, these two methods never get called (when I log it):

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url
sourceApplication:(NSString *)sourceApplication annotation:(id)annotation { 
  ConnectToFB *connect = [[ConnectToFB alloc] init];
  return [connect.facebook handleOpenURL:url]; 
  NSLog(@"url");
  [connect release];
}

- (void)fbDidLogin {

  NSLog(@"log in");

  NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
  [defaults setObject:[facebook accessToken] forKey:@"FBAccessTokenKey"];
  [defaults setObject:[facebook expirationDate] forKey:@"FBExpirationDateKey"];
  [defaults synchronize];    
}

The app id is up to date and my url schemes in info plist is also up to date. What is the problem here?

解决方案

See this [enter link description here][1]

[1]: Story link flow using SSO facebook - openURL not being called .

You propably don't have facebook instance in AppDelegate

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