反应导航堆栈导航不起作用

Question

我正在使用反应导航堆栈导航。第一个片段是导航代码。第二个是在我的登录页面。点击一个按钮后，它转到HomeScreen。它完美地运作。第三个代码用于从注册页面导航到主页。但我使用相同的导航代码导航到主页，但它无法正常工作。

import React from 'react';
import { StackNavigator, NavigationActions, DrawerNavigator } from 'react-navigation';

import LoginScreen from '../components/loginScreen';
import RegisterScreen from '../components/registerScreen';
import HomeScreen from "../components/HomeScreen";

const MainNavigation = StackNavigator(
  {
    Home: {
      screen: HomeScreen,
      navigationOptions: { gesturesEnabled: false }
    },
    Login: {
      screen: LoginScreen,
      navigationOptions: { gesturesEnabled: false }
    },
    Register: {
      screen: RegisterScreen,
      navigationOptions: { gesturesEnabled: false }
    },
  },
  {
    transitionConfig: () => ({ screenInterpolator: () => null }),
    headerMode: "none",
    initialRouteName: "Login",
    navigationOptions: { gesturesEnabled: false }
  }
);


export default MainNavigation;

///登录页面

 var mobile_verified = true;

                   if (response.user.mobile_verified == mobile_verified) {

                     this.props.navigation.navigate("Home");

                   }

///注册页面

finalVerification = (e) => {

    var url = `http://dev.finder-lbs.com:3050/auth/mobile_verify?code=${this.state.verificationCode}`;

    // var data = {
    //     "verification_code": this.state.verificationCode
    // };

    fetch(url, {
        method: 'GET',
        headers: {
            'Content-Type': 'application/json',
            'Accept': 'application / json',
            'Authorization': 'Bearer ' + this.state.ACCESS_TOKEN
        }
    }).then(res => res.json())
        .catch(error => console.log('Error ++++ :', error))
        .then(response => {

          console.log("mobile verified response---> ",response)

          if ( response.status === "mobile verified")
          {
               console.log("ok---------------->>");
               console.log("ouuuuuuuuukkkk",this.props.navigation);
               this.props.navigation.navigate("Home");

          }

        })
}