Facebook在iOS上登錄錯誤的應用程序

Question

我的iOS應用程序使用Facebook進行登錄，但是我的開發團隊最近決定將所有應用程序整合到一個具有通用APP ID的通用Facebook應用程序中。所以我進入了我的項目並嘗試將我的FacebookAppID和URL類型更改爲正確的APP ID，但是當我運行該應用程序並單擊登錄按鈕時，它會重定向我登錄到我在Facebook上的舊應用程序。我絕對不知道爲什麼發生這種情況，但這裏是我在我的AppDelegate文件：

/* 
Callback for session changes 
*/ 
- (void)sessionStateChanged:(FBSession *)session 
        state:(FBSessionState) state 
        error:(NSError *)error 
{ 
switch (state) { 
    case FBSessionStateOpen: 
     if (!error) { 
      // We have a valid session 
      NSLog(@"User session found"); 
     } 
     break; 
    case FBSessionStateClosed: 
    case FBSessionStateClosedLoginFailed: 
     [FBSession.activeSession closeAndClearTokenInformation]; 
     break; 
    default: 
     break; 
} 

[[NSNotificationCenter defaultCenter] 
postNotificationName:FBSessionStateChangedNotification 
object:session]; 

if (error) { 
    UIAlertView *alertView = [[UIAlertView alloc] 
           initWithTitle:@"Error" 
           message:error.localizedDescription 
           delegate:nil 
           cancelButtonTitle:@"OK" 
           otherButtonTitles:nil]; 
    [alertView show]; 
    } 
} 

/* 
* Opens a Facebook session and optionally shows the login UX. 
*/ 
- (BOOL)openSessionWithAllowLoginUI:(BOOL)allowLoginUI { 
    NSArray *permissions = [[NSArray alloc] initWithObjects: 
         @"email", 
         @"user_games_activity", 
         @"user_location", 
         @"user_likes", 
         @"user_birthday", 
         nil]; 
return [FBSession openActiveSessionWithReadPermissions:permissions 
              allowLoginUI:allowLoginUI 
            completionHandler:^(FBSession *session, 
                 FBSessionState state, 
                 NSError *error) { 
             [self sessionStateChanged:session 
                  state:state 
                  error:error]; 
            }]; 
} 

/* 
* If we have a valid session at the time of openURL call, we handle 
* Facebook transitions by passing the url argument to handleOpenURL 
*/ 
- (BOOL)application:(UIApplication *)application 
     openURL:(NSURL *)url 
    sourceApplication:(NSString *)sourceApplication 
    annotation:(id)annotation { 
    // attempt to extract a token from the url 
    return [FBSession.activeSession handleOpenURL:url]; 
} 
/* 
*Logout 
* 
*/ 
- (void) closeSession { 
    [FBSession.activeSession closeAndClearTokenInformation]; 
} 

Answer 1

你可能有您的設備上有應用程序的Info.plist同Facebook的URL方案的兩個應用程序。您可以：

• 刪除舊的應用程序，或
• 重新安裝舊的應用程序，但是從Info.plist文件中刪除Facebook的URL方案事先

你可能有多個URL方案。如果是這樣，你應該尋找一個看起來像fbxxxxxxxxxxx，這是顯示在您的應用程序頁上http://developers.facebook.com/