ai_fitness/app/tabs/tabs.page.ts

import { Component } from '@angular/core';
import { NavController } from '@ionic/angular';
import * as Parse from "parse";

@Component({
  selector: 'app-tabs',
  templateUrl: 'tabs.page.html',
  styleUrls: ['tabs.page.scss']
})
export class TabsPage {

  constructor(private navCtrl: NavController) {}

  async checkLogin() {
    const currentUser = Parse.User.current();
    if (currentUser) {
      // 如果已登录，跳转到“我的”界面
      this.navCtrl.navigateForward('/tabs/tab3');
    } else {
      // 如果未登录，跳转到“登录”界面
      this.navCtrl.navigateForward('/tabs/calendar');
    }
  }
}