How to check the “Allow Full Access” is enabled in iOS 8?

Question

In iOS 8, when develop a custom keyboard and set RequestsOpenAccess property to YES in info.plist, there is a toggle button at Settings-> Add New Keyboard named \"Allow Full

Answer 1

For iOS 10 (Beta 5) they changed the UIPasteboard API but I found the following to work:

let originalString = UIPasteboard.general.string
UIPasteboard.general.string = "TEST"
if UIPasteboard.general.hasStrings
{
    UIPasteboard.general.string = originalString
    hasFullAccess = true
}
else
{
     hasFullAccess = false
}

Answer 2

Update: No need for App Group to be enabled, as others have mentioned, just check for access to the pasteboard:

- (BOOL)isFullAccessGranted
{
    return !![UIPasteboard generalPasteboard];
}

NOTE: The following no longer works, even if you do have App Group enabled...

For a custom keyboard with an App Group enabled, the following is a quick, reliable way of testing for the state of the "Allow Full Access" switch:

func isOpenAccessGranted() -> Bool {
    let fm = NSFileManager.defaultManager()
    let containerPath = fm.containerURLForSecurityApplicationGroupIdentifier(
                        "group.com.example")?.path
    var error: NSError?
    fm.contentsOfDirectoryAtPath(containerPath!, error: &error)
    if (error != nil) {
        NSLog("Full Access: Off")
        return false
    }
    NSLog("Full Access: On");
    return true
}

Answer 3

iOS11 and above is easy.

iOS10 Solution: Check all the copy-able types, if one of them is available, you have full access otherwise not.

-- Swift 4.2--

override var hasFullAccess: Bool
{
    if #available(iOS 11.0, *){
        return super.hasFullAccess// super is UIInputViewController.
    }

    if #available(iOSApplicationExtension 10.0, *){
        if UIPasteboard.general.hasStrings{
            return  true
        }
        else if UIPasteboard.general.hasURLs{
            return true
        }
        else if UIPasteboard.general.hasColors{
            return true
        }
        else if UIPasteboard.general.hasImages{
            return true
        }
        else  // In case the pasteboard is blank
        {
            UIPasteboard.general.string = ""

            if UIPasteboard.general.hasStrings{
                return  true
            }else{
                return  false
            }
        }
    } else{
        // before iOS10
        return UIPasteboard.general.isKind(of: UIPasteboard.self)
    }
}