Find Facebook Sdk Version on iOS

Find Facebook SDK Version on iOS

After about 2014, simply do this:

NSLog( @"### running FB sdk version: %@", [FBSDKSettings sdkVersion] );

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For very old versions. Before about 3.6:

I found an undocumented way to print the SDK version (FB_IOS_SDK_VERSION_STRING), try this

NSLog(@"### FB SDK VERSION : %@",
    [[FBRequestConnection class] performSelector:@selector(userAgent)]);

Worked for me with sdk 3.5.1

Hope that helps...

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Update: As of FB SDK 3.6, "The SDK version number is defined in FacebookSDK.h and available from [FBSDKSettings sdkVersion]"

https://developers.facebook.com/ios/change-log-3.x/

Which version the Facebook iOS SDK that Facebook Unity SDK v6.2.2 is rely on?

Maybe not the best approach but this should work. In your app delegate or anywhere convenient:

#import <FBSDKCoreKit/FBSDKCoreKit.h>

and then in one of the methods:

NSLog(@"Fb iOS SDK version: %@", [FBSDKSettings sdkVersion]);

That should give you the version number of the Facebook SDK. I tried this with Unity 7.1.0 and it gave back Fb iOS SDK version: 4.6.0

But if the SDK is using an older version of the Facebook SDK, the import should fail and if that happens, you can try the steps outlined here.

Is Facebook SDK Documentation for Swift outdated? What is the corresponding SDK version?

The SDK has been updated for Swift 4, but apparently not the documentation. The correct Swift 4 syntax for creating NSURL from a string requires a string argument label:

let url = NSURL(string: "https://developers.facebook.com")

You are looking at Facebook's official documentation, so I don't know where to point you to anything more up-to-date. It might help to re-type their example code into your project so you can get the right auto-completion suggestions from Xcode.

EDIT: In Swift, many classes with the NS prefix have been replaced by classes without the prefix. For example, NSURL has been replaced in favor of URL. Facebook has updated their LinkShareContent class to take a URL in the initializer:

public init(url: URL, quote: String? = nil)

So this should work:

let content = LinkShareContent(url: URL(string: "https://developers.facebook.com"))

P.S. Again, this is the reason you should re-type their example code instead of copy/pasting. As soon as you type let content = LinkShareContent(, Xcode will you show you that the initializer needs a URL not NSURL.

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