推后弹片消失离子3 [英] Tabs disappears ionic 3 after push

问题描述

使用this.navCtrl.push(NamePage);

后，我的标签页"消失了

我不明白，我需要使用@ViewChild还是其他功能? 我在 app.module.ts

中的false上设置了tabsHideOnSubPages

示例: https://github.com/Nicolas-PL/TestMenu

文件为:src/pages/tabs/tabs.ts和src/pages/test/test.ts

 import { Component } from '@angular/core';
import { NavController } from 'ionic-angular';

import { AboutPage } from '../about/about';
import { ContactPage } from '../contact/contact';
import { HomePage } from '../home/home';
import { TestPage } from '../test/test';
import { ModalController } from 'ionic-angular';

@Component({
  templateUrl: 'tabs.html'
})
export class TabsPage {

  tab1Root = HomePage;
  tab2Root = AboutPage;
  tab3Root = TestPage;

  constructor(public navCtrl: NavController,public modalCtrl: ModalController) {
  }

  openModal() {
    let myModal = this.modalCtrl.create(TestPage);
    myModal.present();

  }
} 

 <ion-tabs>
  <ion-tab [root]="tab1Root" tabTitle="Home" tabIcon="home"></ion-tab>
  <ion-tab [root]="tab2Root" tabTitle="About" tabIcon="information-circle"></ion-tab>
  <ion-tab (ionSelect)="openModal()" tabTitle="Contact" tabIcon="contacts"></ion-tab>
</ion-tabs> 

Test.ts(选项卡消失)

 import { Component } from '@angular/core';
import { IonicPage, NavController, NavParams } from 'ionic-angular';
import { HomePage } from '../home/home';
import { App, ViewController } from 'ionic-angular';

@IonicPage()
@Component({
  selector: 'page-test',
  templateUrl: 'test.html',
})
export class TestPage {

  constructor(public viewCtrl: ViewController, public navCtrl: NavController, public navParams: NavParams) {}
  ionViewDidLoad() {}

  openMenu() {
  this.navCtrl.push(HomePage);
}

} 

我尝试了this.navCtrl.root(HomePage);，但是没有用..

提前谢谢！

解决方案

我刚刚找到了解决方法.

如果从不在选项卡中的页面调用push()，则选项卡消失. 所以，我打电话给一个事件

this.events.publish('gotochat', { item: element });

然后，我导航到我的根选项卡

this.nav.setRoot('TabsPage', { index: 1 }, {
        animate: true,
        direction: 'forward'
      });

在登录页面中，我听了事件并推送了所需的页面.

this.events.subscribe('gotochat', (item) => {
  this.navCtrl.push('ItemDetailPage', {
    home: true,
    chat: item.item
  })
})

My Tabs disappears after using this.navCtrl.push(NamePage);

I don't understand, I need use @ViewChild or another function? I have set tabsHideOnSubPages on false in app.module.ts

Example : https://github.com/Nicolas-PL/TestMenu

Files is : src/pages/tabs/tabs.ts and src/pages/test/test.ts

import { Component } from '@angular/core';
import { NavController } from 'ionic-angular';

import { AboutPage } from '../about/about';
import { ContactPage } from '../contact/contact';
import { HomePage } from '../home/home';
import { TestPage } from '../test/test';
import { ModalController } from 'ionic-angular';

@Component({
  templateUrl: 'tabs.html'
})
export class TabsPage {

  tab1Root = HomePage;
  tab2Root = AboutPage;
  tab3Root = TestPage;

  constructor(public navCtrl: NavController,public modalCtrl: ModalController) {
  }

  openModal() {
    let myModal = this.modalCtrl.create(TestPage);
    myModal.present();

  }
}

<ion-tabs>
  <ion-tab [root]="tab1Root" tabTitle="Home" tabIcon="home"></ion-tab>
  <ion-tab [root]="tab2Root" tabTitle="About" tabIcon="information-circle"></ion-tab>
  <ion-tab (ionSelect)="openModal()" tabTitle="Contact" tabIcon="contacts"></ion-tab>
</ion-tabs>

Test.ts (tabs disappears)

import { Component } from '@angular/core';
import { IonicPage, NavController, NavParams } from 'ionic-angular';
import { HomePage } from '../home/home';
import { App, ViewController } from 'ionic-angular';

@IonicPage()
@Component({
  selector: 'page-test',
  templateUrl: 'test.html',
})
export class TestPage {

  constructor(public viewCtrl: ViewController, public navCtrl: NavController, public navParams: NavParams) {}
  ionViewDidLoad() {}

  openMenu() {
  this.navCtrl.push(HomePage);
}

}

I have try this.navCtrl.root(HomePage); but don't works..

Thank you in advance !

解决方案

I just found a workaround.

Tab disappear if push() is called from a page that's not in the tab. So, I call an event

this.events.publish('gotochat', { item: element });

Then, I navigate to my root Tab

this.nav.setRoot('TabsPage', { index: 1 }, {
        animate: true,
        direction: 'forward'
      });

In the land page, I listen to the event and push the desired page.

this.events.subscribe('gotochat', (item) => {
  this.navCtrl.push('ItemDetailPage', {
    home: true,
    chat: item.item
  })
})

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