登录成功时如何重新加载存储ionic2

Question

我创建侧边菜单并设置用户登录成功后显示图像。

但是我得到错误，因为登录成功后侧边菜单不显示用户名和图像（get data.json），如果刷新应用侧边菜单显示用户名和图像。

例子

Before user login

After user login success

刷新应用时

enter image description here

我想在用户登录成功后重新加载存储空间

Answer 1

您可以使用 Events.

Events is a publish-subscribe style event system for sending and responding to application-level events across your app.

import { Events } from 'ionic-angular';

constructor(public events: Events) {}

// first page (publish an event when a user is created)
function createUser(user) {
  console.log('User created!')
  events.publish('user:created', user, Date.now());
}

// second page (listen for the user created event)
events.subscribe('user:created', (user, time) => {
  // user and time are the same arguments passed in `events.publish(user, time)`
  console.log('Welcome', user, 'at', time);
});

在您的情况下，您可以将数据从 JSON 保存到 localstorage 到 events.publish 中，例如 login.ts，然后在 app.component.ts 中访问它里面 events.subscribe

登录成功时如何重新加载存储ionic2

How to reload storage when login success ionic2

angular

typescript

ionic-framework

ionic2

storage