Javascript 离子骨架-x27;导航';尝试推送页面时未定义
我正在尝试使用Ionic框架制作一个Android应用程序。我实现了一个侧菜单,当我尝试从侧菜单推送页面时,控制台中出现一个错误,显示: 无法读取未定义的属性“push” 应用程序tsJavascript 离子骨架-x27;导航';尝试推送页面时未定义,javascript,android,ionic-framework,ionic2,Javascript,Android,Ionic Framework,Ionic2,我正在尝试使用Ionic框架制作一个Android应用程序。我实现了一个侧菜单,当我尝试从侧菜单推送页面时,控制台中出现一个错误,显示: 无法读取未定义的属性“push” 应用程序ts import { Component, ViewChild } from '@angular/core'; import { ModalController, ionicBootstrap, Platform, MenuController, NavController } from 'ionic-angular
import { Component, ViewChild } from '@angular/core';
import { ModalController, ionicBootstrap, Platform, MenuController, NavController } from 'ionic-angular';
import { StatusBar } from 'ionic-native';
import { HomePage } from './pages/home/home';
import {AppSettingsPage} from "./pages/app-settings/app-settings";
import {TabsPage} from "./pages/tabs/tabs";
import {ReserveRoomPage} from "./pages/reserve-room/reserve-room";
import {ConfirmedReservationsPage} from "./pages/confirmed-reservations/confirmed-reservations";
@Component({
templateUrl: 'build/app.html',
providers: [NavController]
})
export class MyApp {
@ViewChild('nav') nav: NavController;
private rootPage: any;
private pages: any[];
private icon = 'cog';
constructor(private platform: Platform, private menu: MenuController,
private modalCtrl: ModalController) {
this.menu = menu;
this.pages = [
{title: 'Home', component: HomePage, icon: 'home'},
{title: 'Settings', component: AppSettingsPage, icon: 'settings'},
{title: 'Reserve Room', component: ReserveRoomPage, icon: 'add'},
{title: 'My Reservations', component: ConfirmedReservationsPage, icon: 'book'},
];
this.rootPage = TabsPage;
platform.ready().then(() => {
StatusBar.styleDefault();
});
}
openPage(page){
this.menu.close();
this.nav.push(page.component);
}
}
ionicBootstrap(MyApp);
app.html
<ion-menu [content] = "content">
<ion-toolbar>
<ion-title><strong>Giman</strong>.lk</ion-title>
</ion-toolbar>
<ion-content>
<ion-list>
<button ion-item *ngFor="let p of pages" (click)="openPage(p)">
<ion-icon name="{{ p.icon }}"></ion-icon> {{ p.title }}
</button>
</ion-list>
</ion-content>
</ion-menu>
<ion-nav id="nav" [root]="rootPage" #content swipe-back-enabled="false"></ion-nav>
(我导入了ModalController,因为我想预览我的应用程序UI流,而且推送不起作用,我使用每个页面作为模式,只是为了预览。对于最终的应用程序,我需要推送和弹出)将
@ViewChild
设置为NavController
,但设置为Nav
import { Nav } from 'ionic-angular';
.....
@Component({
templateUrl: "build/app.html" //no need for the provider
})
class MyApp{
@ViewChild(Nav) nav:Nav; //remove the 'id' from the HTML, it will find the ion-nav tag
....
someFunction(){
this.nav.push(YourComponent);
//or
this.nav.setRoot(YourComponent);
}
}
关于离子3,
我用过这个,它很管用!!
从childview调用父导航
var navParent = this.navCtrl.parent.parent as NavController;
navParent.push('DetailsTabPage')
这就解决了!谢谢。您将其设置为
Nav
而不是NavController
的任何原因?@user9492428 tbh我也不确定,即使是使用NavController的说法,尽管在使用ionic generate myapp
时,他们会为您提供Nav
。也许他们会更新这个
var navParent = this.navCtrl.parent.parent as NavController;
navParent.push('DetailsTabPage')