Sinopec-Anxin/src/app/pages/home/home.component.ts

import { Component, OnInit } from '@angular/core';
import { Router, NavigationEnd, ActivatedRoute } from '@angular/router';
import { Title } from '@angular/platform-browser'
import { filter } from 'rxjs/operators';
import { NavChangeService } from 'src/app/service/navChange.service';
@Component({
  selector: 'app-home',
  templateUrl: './home.component.html',
  styleUrls: ['./home.component.scss']
})
export class HomeComponent implements OnInit {

  constructor(private router: Router, private navChangeService: NavChangeService) { }
  isGasStationNav: boolean
  isGasStation: boolean
  isWarning: boolean = false//是否是今日预警页面
  num
  ngOnInit(): void {

    this.navChangeService.getMessage().subscribe((message: any) => {
      console.log(message);//send a message
      if (message.name == 'oilstation') {
        this.isGasStationNav = true
      }
      if (message.name == '改变数量') {
        this.isWarning = true
        this.num = message.num
      }
    });

    if (this.router.url.indexOf('warning') != -1) {
      this.isWarning = true
    } else {
      this.isWarning = false
    }


    if (this.router.url.indexOf('petrolStation') != -1 && sessionStorage.getItem('isGasStation') == 'false') {//控制返回按钮显示
      this.isGasStation = true
    } else {
      this.isGasStation = false
    }

    if (sessionStorage.getItem('isGasStation') == 'true') {
      this.isGasStationNav = true
    } else {
      this.isGasStationNav = false
    }

    this.router.events.pipe(
      filter(event => event instanceof NavigationEnd)
    ).subscribe((event: any) => {
      if (event.url.indexOf('warning') != -1) {//控制今日预警左上角数字显示

      } else {
        this.isWarning = false
      }
      if (event.url.indexOf('petrolStation') != -1 && sessionStorage.getItem('isGasStation') == 'false') {//控制返回按钮显示
        this.isGasStation = true
      } else {
        this.isGasStation = false
      }
    });
  }


  goback() {
    this.router.navigate(['/plan'])
    this.isGasStationNav = false
  }

}