Native Facebook app does not open with Facebook login in iOS 9

Question

I have updated iPhone 6 plus to iOS 9 beta and trying to perform Facebook login but each time its presenting UIWebView with Facebook login form.

I have Facebook sdk

FB_IOS_SDK_VERSION_STRING @"3.24.0" FB_IOS_SDK_TARGET_PLATFORM_VERSION @"v2.2" 

And I am using following methods to perform Facebook Login

    NSArray *permissions = @[@"email",@"user_birthday",@"public_profile"];        FBSessionStateHandler completionHandler = ^(FBSession *session, FBSessionState status, NSError *error) {          [self sessionStateChanged:session state:status error:error];      };       if ([FBSession activeSession].state == FBSessionStateCreatedTokenLoaded) {      // we have a cached token, so open the session          [[FBSession activeSession]openWithBehavior:FBSessionLoginBehaviorUseSystemAccountIfPresent                                  fromViewController:nil                                   completionHandler:completionHandler];      } else {       [self clearAllUserInfo];     [[NSURLCache sharedURLCache] removeAllCachedResponses];       // create a new facebook session      FBSession *fbSession = [[FBSession alloc] initWithPermissions:permissions];      [FBSession setActiveSession:fbSession];      [fbSession openWithBehavior:FBSessionLoginBehaviorUseSystemAccountIfPresent               fromViewController:nil                completionHandler:completionHandler];      } 

I have following setting under plist file

    <key>LSApplicationQueriesSchemes</key>     <array>         <string>fbapi</string>         <string>fbapi20130214</string>         <string>fbapi20130410</string>         <string>fbapi20130702</string>         <string>fbapi20131010</string>         <string>fbapi20131219</string>         <string>fbapi20140410</string>         <string>fbapi20140116</string>         <string>fbapi20150313</string>         <string>fbapi20150629</string>         <string>fb-messenger-api20140430</string>         <string>fbauth</string>         <string>fbauth2</string>    <array> 

Please let me know what I am missing here. First it is checking for iPhone device Setting-> Facebook credentials but never open Facebook app for login. Seems it does not recognize Facebook app installed on device.

Answer 1

This is by design. Facebook still have some issue with iOS9.

See the Facebook team answere : https://developers.facebook.com/bugs/786729821439894/?search_id Thanks

Answer 2

Below is complete process for new "Facebook login".

---

this is how I have revised my Facebook Login integration to get it work on latest update.

Xcode 7.x , iOS 9 , Facebook SDK 4.x

Step-1. Download latest Facebook SDK (it includes major changes).

Step-2. Add FBSDKCoreKit.framework and FBSDKLoginKit.framework to your project.

Step-3. Now go to Project > Build Phases > add SafariServices.framework

Step-4. There are three changes in info.plist we need to verify.

4.1 Make sure you have below in your info.plist file

<key>CFBundleURLTypes</key> <array>   <dict>   <key>CFBundleURLSchemes</key>   <array>     <string><your fb id here eg. fbxxxxxx></string>   </array>   </dict> </array>   <key>FacebookAppID</key>   <string><your FacebookAppID></string>   <key>FacebookDisplayName</key> <string><Your_App_Name_Here></string> 

4.2 Now add below for White-list Facebook Servers, this is must for iOS 9

<key>NSAppTransportSecurity</key> <dict>   <key>NSExceptionDomains</key>   <dict>     <key>facebook.com</key>     <dict>       <key>NSIncludesSubdomains</key>       <true/>       <key>NSExceptionRequiresForwardSecrecy</key>       <false/>     </dict>     <key>fbcdn.net</key>     <dict>       <key>NSIncludesSubdomains</key>       <true/>       <key>NSExceptionRequiresForwardSecrecy</key>       <false/>     </dict>     <key>akamaihd.net</key>     <dict>       <key>NSIncludesSubdomains</key>       <true/>       <key>NSExceptionRequiresForwardSecrecy</key>       <false/>     </dict>   </dict> </dict> 

4.3 Add URL schemes

<key>LSApplicationQueriesSchemes</key>   <array>       <string>fbapi</string>       <string>fb-messenger-api</string>       <string>fbauth2</string>       <string>fbshareextension</string>   </array> 

Step-5. Now open AppDelegate.m file

5.1 Add below import statements, (remove old one).

#import <FBSDKLoginKit/FBSDKLoginKit.h>  #import <FBSDKCoreKit/FBSDKCoreKit.h> 

5.2 update following following methods

- (BOOL)application:(UIApplication *)application             openURL:(NSURL *)url   sourceApplication:(NSString *)sourceApplication          annotation:(id)annotation {   return [[FBSDKApplicationDelegate sharedInstance] application:application                                                          openURL:url                                                sourceApplication:sourceApplication                                                       annotation:annotation]; }  - (void)applicationDidBecomeActive:(UIApplication *)application {   [FBSDKAppEvents activateApp]; }  - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {   return [[FBSDKApplicationDelegate sharedInstance] application:application                                     didFinishLaunchingWithOptions:launchOptions]; } 

Step-6. Now we need to modify our Login Controller, where we do Login task

6.1 Add these imports in Login ViewController.m

#import <FBSDKCoreKit/FBSDKCoreKit.h> #import <FBSDKLoginKit/FBSDKLoginKit.h> 

6.2 Add Facebook Login Button

FBSDKLoginButton *loginButton = [[FBSDKLoginButton alloc] init]; loginButton.center = self.view.center; [self.view addSubview:loginButton]; 

6.3 Handle Login button click

-(IBAction)facebookLogin:(id)sender {     FBSDKLoginManager *login = [[FBSDKLoginManager alloc] init];      if ([FBSDKAccessToken currentAccessToken])     {         NSLog(@"Token is available : %@",[[FBSDKAccessToken currentAccessToken]tokenString]);         [self fetchUserInfo];     }     else     {         [login logInWithReadPermissions:@[@"email"] fromViewController:self handler:^(FBSDKLoginManagerLoginResult *result, NSError *error)          {              if (error)              {                  NSLog(@"Login process error");              }              else if (result.isCancelled)              {                  NSLog(@"User cancelled login");              }              else              {                  NSLog(@"Login Success");                   if ([result.grantedPermissions containsObject:@"email"])                  {                      NSLog(@"result is:%@",result);                      [self fetchUserInfo];                  }                  else                  {                      [SVProgressHUD showErrorWithStatus:@"Facebook email permission error"];                   }              }          }];     } } 

6.4 Get user info (name, email etc.)

-(void)fetchUserInfo {     if ([FBSDKAccessToken currentAccessToken])     {         NSLog(@"Token is available : %@",[[FBSDKAccessToken currentAccessToken]tokenString]);          [[[FBSDKGraphRequest alloc] initWithGraphPath:@"me" parameters:@{@"fields": @"id, name, email"}]          startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error) {              if (!error)              {                  NSLog(@"results:%@",result);                   NSString *email = [result objectForKey:@"email"];                  NSString *userId = [result objectForKey:@"id"];                   if (email.length >0 )                  {                      //Start you app Todo                  }                  else                  {                     NSLog(@“Facebook email is not verified");                  }              }              else              {                  NSLog(@"Error %@",error);             }          }];     } } 

Step-7. Now you can build project, you should get below screen.

Hope this will help you guys.

References : Thanks to Facebook docs, Stackoverflow posts and Google.