Question

我正在尝试使用Angular 2对旋转木马/滑块进行编码。我的想法是，我有一系列图像，

export class AppComponent {
  title = 'app works!';

  images: Array<any> = [
    {
      image: "1.jpg"
    },
    {
      image: "2.jpg"
    },
    {
      image: "3.jpg"
    },
    {
      image: "4.jpg"
    },
    {
      image: "5.jpg"
    },
    {
      image: "6.jpg"
    }
  ];
}

我想遍历图像数组并用当前值{{images.image}}替换div的背景图像。

我已经设置了一个柜台，

public subscription: any;
public time: any;
ngOnInit() {
  let timer = TimerObservable.create(1000,5000);
  this.subscription = timer.subscribe(t=>{
    this.time = t;
  })
}

并且目标div看起来像

<div class="slider__home" style="background: url({{image}})">

</div>

我如何实现这一目标？我不想使用bootstrap或jQuery，但只是简单的Angular2，感谢您的帮助。

Answer 1

像这样：

<div class="slider__home" [style.background]="'url('+ image +')'">

</div>

Answer 2

你可以像这样使用bootstrap轮播：

的index.html

<html>
    <head>
        <!-- Insert all css data here -->
    </head>
    <body>
        <carousel></carousel>

        <!-- Insert all needed scripts here -->
        <script>
            System.import('carousel.js');
        </script>
    </body>
</html>

carousel.html

<div id="carousel-generic" class="carousel slide" data-ride="carousel">
    <div class="carousel-inner" role="listbox">
        <div *ngFor="let url of urls" class="item" [ngClass]="{active: isActive(url)}">
            <img src="{{url}}" alt="{{url}}">
        </div>
    </div>

    <!-- Controls -->
    <a class="left carousel-control" href="#carousel-generic" role="button" data-slide="prev">
        <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
        <span class="sr-only">Previous</span>
    </a>
    <a class="right carousel-control" href="#carousel-generic" role="button" data-slide="next">
        <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
        <span class="sr-only">Next</span>
    </a>
</div>

carousel.ts

// <reference path="jquery.d.ts" />
// <reference path="boodstrap.d.ts" />

import {Component} from '@angular/core';
import {Http} from '@angular/http';

@Component({
    selector: "carousel",
    templateUrl: 'carousel.html'
})

export class CarouselComponent {
    private start = false;
    urls = [];
    constructor(http: Http) {
            http.get('/getcarousel')
                .subscribe(res => this.startCarousel(res.json()));        
    }

    startCarousel(urls: string[]) {
        this.urls = urls;
        $('.carousel').carousel();
    }

    isActive(url: string) {
        return url === this.urls[0];
    }
}

Answer 3

我刚刚为this question写了一个类似于你问题的答案。

如果您想了解如何从头开始创建内容滑块here on by blog，则可以很好地解释。您将能够以纯角度2和css创建一个轻量级滑块，它将与下面的示例一样简单。

typescript
 @Component({
        selector: 'ImageShow',
        template: `
        <contentSlider [slides]="images"></contentSlider>
        `
    })
    export class ImageShowComponent implements  AfterViewInit{
       images:Array<any> = [{"sType":"img","imgSrc":"..."},{"sType":"div","content":"...Hello It's slidable content"}];
      constructor(){
      }
}

旋转/滑块与角度2从头开始

3 个答案: