重新登錄時拋出例外-有解無憂

Future<String> login() async {
    try {
      final authorizationTokenRequest = AuthorizationTokenRequest(
        auth0ClientID,
        auth0RedirectUrl,
        issuer: auth0Issuer,
        scopes: ['openid', 'profile', 'offline_access', 'email'],
        promptValues: ['login'],
      );

      final AuthorizationTokenResponse? result =
          await appAuth.authorizeAndExchangeCode(authorizationTokenRequest);

      debugPrint(result?.accessToken);

      return await _setLocalVariables(result);
    } on PlatformException {
      return 'User has Cancelled or no Internet';
    } catch (e) {
      return 'Unknown Error';
    }
  }

  // logout Function While Logging Out The RefreshToken also will be Deleted
  Future<bool> logout() async {
    await secureStorage.delete(key: refreshTokenKey);

    final url = Uri.https(
      auth0Domain,
      '/v2/logout',
      {
        'client_id': auth0ClientID,
        'federated': '',
        //'returnTo': 'YOUR_RETURN_LOGOUT_URL'
      },
    );

    final response = await http.get(
      url,
      headers: {'Authorization': 'Bearer $auth0AccessToken'},
    );

    debugPrint(
      'logout: ${response.request} ${response.statusCode} ${response.body}',
    );

    return response.statusCode == 200;
  }

高架按鈕

ElevatedButton(
                              style: ElevatedButton.styleFrom(
                                primary: appPrimaryColor, // background
                                onPrimary: Colors.white, // foreground
                                fixedSize: Size(context.screenWidth * 0.80,
                                    context.screenHeight * 0.07),
                                onSurface: appPrimaryColor,
                                shape: RoundedRectangleBorder(
                                  borderRadius: BorderRadius.circular(15),
                                ),
                              ),
                              onPressed: () {
                                loginAction(); // Calling the Login fucntion from the HomeScreen to Perform LoginAction
                              },

當第一次登錄時正確登錄后注銷并再次登錄它會引發錯誤

處理手勢時引發以下 NoSuchMethodError：

類'String'沒有實體方法'call'。接收者：“”嘗試呼叫：call()

拋出例外時，這是堆疊 #0 Object.noSuchMethod #1 LoginScreen.build..

uj5u.com熱心網友回復：

NoSuchMethodError當您嘗試從類或物件訪問不存在的方法時，通常會拋出。造成這種情況的常見原因可能是由于類尚未初始化或為空。

轉載請註明出處，本文鏈接：https://www.uj5u.com/caozuo/426617.html

標籤：扑镖

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