Question

我是iOS（原生）世界的初学者，我的演示应用中的Facebook身份验证存在一个奇怪的问题。

我已按照教程配置了.plist文件，其中包含以下键：

FacebbokAppID: <myappid>
FacebookDisplayName: a name
Url types (array)
- Item 0 (dictionary)
  - Url Schemes (Array)
    - Item 0 (String): fb<myappid>

其中<myappid>是Facebook网站上已注册应用的数字应用ID。现在，我使用以下代码执行登录：

- (void) facebookLoginLogout
{
// If the session state is any of the two "open" states when the button is clicked
if (FBSession.activeSession.state == FBSessionStateOpen
  || FBSession.activeSession.state == FBSessionStateOpenTokenExtended) {

// Close the session and remove the access token from the cache
// The session state handler (in the app delegate) will be called automatically
[FBSession.activeSession closeAndClearTokenInformation];

// If the session state is not any of the two "open" states when the button is clicked
} else {
// Open a session showing the user the login UI
// You must ALWAYS ask for basic_info permissions when opening a session
[FBSession openActiveSessionWithReadPermissions:@[@"basic_info", @"friends_online_presence"]
                                   allowLoginUI:YES
                              completionHandler:
 ^(FBSession *session, FBSessionState state, NSError *error) {

   // Retrieve the app delegate
   AppDelegate* appDelegate = [UIApplication sharedApplication].delegate;
   // Call the app delegate's sessionStateChanged:state:error method to handle session state changes
   [appDelegate sessionStateChanged:session state:state error:error];
 }];
}
}

我已经定义了处理状态变化的方法：

- (void)sessionStateChanged:(FBSession *)session state:(FBSessionState) state error:(NSError *)error
{
  NSLog(@"here?");
  [..]
}

问题在于，在这种情况下永远不会调用此方法。

THE STRANGE POINT 是，如果我将Url types -> Item 0 -> Url Schemes -> Item 0值更改为不同的值，则会调用该方法！

任何提示？提前谢谢。

facebook ios网址类型问题

0 个答案: