title: I want to move the view when I log in successfully
body: <pre><code>    Button {
                  
                  if(UserApi.isKakaoTalkLoginAvailable()){
                      UserApi.shared.loginWithKakaoTalk { (oauthToken, error) in
                          print(oauthToken)
                          print(error)
                      }
                  } else {
                      UserApi.shared.loginWithKakaoAccount {(oauthToken, error) in
                          print(oauthToken)
                          print(error)
                      }
                  }
                  UserApi.shared.loginWithKakaoAccount(prompts: [.Login]) {(oauthToken, error) in
                      if let error = error {
                          print(error)
                      } else {
                          print(&quot;LoginSuccess&quot;)
                              MainView()// I want to go to this view 
                          _ = oauthToken
                      }
                  }
              }
  </code></pre>
  <p>I tried navigation, but it didn't work</p>
  <p>I want to call View when Token is here
  Token type is Bool</p>