如何在Swift中以编程方式更改Facebook按钮的文本？

Question

我有他们SDK的facebook登录按钮,想要更改文本.我试过这段代码:

facebookButton.setTitle("my text here", forState: .Normal)

但它不起作用.有办法吗？

这是facebook登录按钮代码的样子:

//MARK: Facebook Login

  func loginButton(loginButton: FBSDKLoginButton!, didCompleteWithResult result: FBSDKLoginManagerLoginResult!, error: NSError!) {
    if error == nil {

      facebookAPILogin(FBSDKAccessToken.currentAccessToken().tokenString, completionHandler: { error in

        if error == nil {

          self.performSegueWithIdentifier("loginToHomeSegue", sender: self)

        } else {



          self.showAlertWithTitle("Sorry".localized(), message: "There was a problem connecting with Facebook".localized() )

          print(error)

        }
        }
      )

    } else {

      showAlertWithTitle("Sorry".localized(), message: "There was a problem connecting with Facebook".localized() )

      print(error.localizedDescription)

    }
  }


  //Facebook Logout

  func loginButtonDidLogOut(loginButton: FBSDKLoginButton!) {
    print("User logged out")

  }

Answer 1

我刚刚在访问了许多错误的答案后发现它是:

let buttonText = NSAttributedString(string: "your text here")
facebookButton.setAttributedTitle(buttonText, for: .normal)

Answer 2

您可以尝试通过进入 FBLoginViews -如何自定义 FBLoginVIew 来更改按钮文本？

但是，如果您只需用自己的自定义按钮替换该按钮就会容易得多。

此链接可以更好地帮助您： https ://developers.facebook.com/docs/facebook-login/ios#custom-login-button