如何在Ionic 2应用程序中提取和重用导航栏模板和逻辑?

时间:2016-04-11 17:17:55

标签: ionic-framework angular ionic2

在使用Angular 1.x(但不是Ionic 1.x)方面有一些经验,我现在正在尝试使用基于Angular 2的Ionic 2开发一个小型移动应用程序。

我熟悉基于网址的路由原则,例如ui-router中使用的路由原则。 Ionic 2中的概念是不同的,它基于在根页面上推送/弹出页面。

到目前为止,我已设法创建了两个页面(SearchPerson),顶部有一个导航栏,并从一个页面导航到另一个页面,然后返回。导航栏有一个按钮可以返回到根(搜索)页面(因为以后可以从一个人导航到其他页面,更远离根页面。)

但是我无法弄清楚如何在单独的文件中提取导航栏和导航栏控制器。因此,标记和按钮处理程序(goToSearch)将在每个页面中重复。

如何提取导航栏模板和逻辑以免重复?

奖金问题(和强烈相关):有人可以解释app.html中的ion-nav和页面中的ion-navbar之间的区别吗?

app.ts:

import 'es6-shim';
import {App, Platform} from 'ionic-angular';
import {StatusBar} from 'ionic-native';
import {TabsPage} from './pages/tabs/tabs';
import {Search} from './pages/search/search'


@App({
  templateUrl: 'build/pages/app.html',
  config: {} // http://ionicframework.com/docs/v2/api/config/Config/
})
export class MyApp {
  rootPage: any = Search;

  constructor(platform: Platform) {
    platform.ready().then(() => {
      // Okay, so the platform is ready and our plugins are available.
      // Here you can do any higher level native things you might need.
      StatusBar.styleDefault();
    });
  }
}

app.html:

<ion-nav [root]="rootPage">
    <ion-buttons end>
        <button>
          <ion-icon name="search"></ion-icon>
        </button>
    </ion-buttons>
</ion-nav>

search.ts:

import {Page} from 'ionic-angular';
import {Nav} from 'ionic-angular';
import {Person} from '../person/person'

@Page({
  templateUrl: 'build/pages/search/search.html',
})
export class Search {

    nav:Nav;

  constructor(nav:Nav) {
    this.nav = nav;
  }

  goToPerson() {
    this.nav.push(Person);
  }
}

search.html:

<ion-navbar *navbar>
  <ion-title>Search</ion-title>
  <ion-buttons end>
    <button>
      <ion-icon name="search"></ion-icon>
    </button>
  </ion-buttons>
</ion-navbar>

<ion-content padding class="page1">
  <h2>Welcome to SEARCH</h2>
  <button (click)="goToPerson()">Go to person</button>
</ion-content>

person.ts:

import {Page} from 'ionic-angular';
import {Nav} from 'ionic-angular';
import {Search} from '../search/search'


@Page({
  templateUrl: 'build/pages/person/person.html',
})
export class Person {
  nav:Nav;

  constructor(nav:Nav) {
    this.nav = nav;
  }
  goToSearch() {
    this.nav.push(Search);
  }
}

person.html:

<ion-navbar *navbar>
  <ion-title>Person</ion-title>
  <ion-buttons end>
    <button (click)="goToSearch()">
      <ion-icon name="search"></ion-icon>
    </button>
  </ion-buttons>
</ion-navbar>

<ion-content padding class="page1">
  <h2>Welcome to PERSON</h2>
  <button (click)="goToSearch()">Go to search</button>
</ion-content>

1 个答案:

答案 0 :(得分:0)

您可以创建一个用于保存标头配置的组件,这些组件可重用并且可以非常动态,只是不要忘记将其导入到模块中

default-header.html

<ion-navbar *navbar>
  <ion-title>{{pageTitle}}</ion-title>
  <ion-buttons end>
    <button (click)="goToSearch()">
        <ion-icon name="{{icon}}"></ion-icon>
    </button>
  </ion-buttons>
</ion-navbar>

default-header.ts

 import { Component, Input, Inject, ViewChild } from "@angular/core";
 import { Content } from "ionic-angular";
 import { NavController } from "ionic-angular/navigation/nav-controller";
 import {Person} from '../person/person'

@Component({
    selector: "default-header",
    templateUrl: "default-header.html"
})
export class DefaultHeaderComponent {
@Input() pageTitle: any;
@Input() icon= true;
@ViewChild(Content) content: Content;

constructor(
    public navCtrl: NavController,
 ) {
    console.log("Hello DefaultHeaderComponent Component");

 }

  ionViewDidLoad() {
    const self = this;      
  }

  gotNotificationsPage() {
    this.global.setRoot("NotificationsPage");
  }
}

并在任意页面中将其命名为导航栏

 <default-header [title]="'Person'" [icon]="'search'"></default-header>