ionic start ionic2-welcome --v2

ionic g page welcome

import { WelcomePage } from '../pages/welcome/welcome';

<ion-slides pager>
<ion-slide>
<img src="images/slide1.png" />
</ion-slide>
<ion-slide>
<img src="images/slide2.png" />
</ion-slide>
<ion-slide>
<img src="images/slide3.png" />
</ion-slide>
<ion-slide>
<ion-row>
<ion-col>
<img src="images/slide4.png" />
</ion-col>
</ion-row>
<ion-row>
<ion-col>
<button light (click)="goToHome()">立即启动</button>
</ion-col>
</ion-row>
</ion-slide>
</ion-slides>

ion-slide {
background-color: #eeeeee;
}
ion-slide img {
height: 70vh !important;
width: auto !important;
}

import { Component } from '@angular/core';
import {NavController} from 'ionic-angular';
import {HomePage} from '../home/home'; 
@Component({
templateUrl: 'welcome.html'
})
export class WelcomePage {
constructor(public navCtr: NavController){ 
}
goToHome(){
this.navCtr.setRoot(HomePage);
}
}

import { Component } from '@angular/core';
import { Platform } from 'ionic-angular';
import { StatusBar } from 'ionic-native';
import { HomePage } from '../pages/home/home';
import { WelcomePage } from '../pages/welcome/welcome';
import { Storage } from '@ionic/storage';
@Component({
template: `<ion-nav [root]="rootPage"></ion-nav>`,
})
export class MyApp { 
rootPage: any; 
constructor(platform: Platform, public storage: Storage) {
this.storage.get('firstIn').then((result) => { 
if(result){ 
this.rootPage = HomePage; 
} 
else{
this.storage.set('firstIn', true);
this.rootPage = WelcomePage;
}
}
); 
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(); 
});
} 
}