FBSDKShareDialog of Facebook SDK is not working on iOS9?

Question

With Xcode7, I upgrade Facebook SDK to pod FBSDKShareKit (4.6.0). And I have added Facebook scheme to WhiteList as below. reference: https://developers.facebook.com/docs/io

Answer 1

I'm guessing Facebook changed the behaviour because iOS 9 now pops up a dialog asking if you would like to "Open Facebook?" when doing app-switching. Even for FBSDKLoginManager, the app-switching (native) method seems to be less preferred than a modal UIWebView.

However, you can still force the share dialog to switch to the Facebook app (assuming you have your application plist setup as described in https://developers.facebook.com/docs/ios/ios9) by using this method:

FBSDKShareDialog *dialog = [[FBSDKShareDialog alloc] init];

if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"fbauth2://"]]){
    dialog.mode = FBSDKShareDialogModeNative;
}
else {
    dialog.mode = FBSDKShareDialogModeBrowser; //or FBSDKShareDialogModeAutomatic
}
dialog.shareContent = content;
dialog.delegate = self;
dialog.fromViewController = self;
[dialog show];

Answer 2

In iOS 9 below is the only solution that worked for me to detect if facebook app is installed in the device or not:

 NSString *urlString = @"fbapi://";
    NSURL *url1 = [NSURL URLWithString:urlString];

    if ([[UIApplication sharedApplication] canOpenURL:url1]) {
        [[UIApplication sharedApplication] openURL:url1];
    }
    else {
        [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"itunes link for download app"]];
    }