Vue Mobile Music App Development Learning (III): Development of Carousel Diagram components

Source: Internet
Author: User

This series of articles is designed to record the knowledge points in learning, so that they are easy to watch later. If you need a classmate please login to the network, find Vue 2.0 advanced Combat-Develop mobile music webapp to watch, portal.

The completed page status and project structure are as follows:

One: Create a Carousel Diagram component Slider.vue

1: Create a new base folder under Src/base, and then make the Silder.vue:

<template> <div class= "slider" ref= "Slider" > <div class= "slider-group" ref= "Slidergroup" > <s lot> </slot> </div> <div class= "dots" > <span class= "dot": class= "{ACTIVE:CURRENTP Ageindex = = = Index} "v-for=" (item, index) in dots "></span> </div> </div></template><scr IPT type= "text/ecmascript-6" > Import {addclass} from ' Common/js/dom ' import bscroll from ' better-scroll ' export DEFA        ult {name: ' Slider ', props: {loop: {Type:boolean, default:true}, AutoPlay: {    Type:boolean, Default:true}, Interval: {Type:number, default:4000}},        Data () {return {dots: [], currentpageindex:0}}, mounted () {setTimeout (() = { This._setsliderwidth () this._initdots () This._initslider () if (This.autoplay) {this. _play ()}}, Window.addeventlistener (' Resize ', () = {if (!this.slider) {return} This._se Tsliderwidth (True) This.slider.refresh ()})}, activated () {if (this.autoplay) {This._play    ()}, deactivated () {cleartimeout (This.timer)}, Beforedestroy () {cleartimeout (This.timer) }, Methods: {_setsliderwidth (isresize) {This.children = this. $refs. Slidergroup.children Let WID          th = 0 Let Sliderwidth = the $refs. Slider.clientwidth for (Let i = 0; i < this.children.length; i++) { Let child = This.children[i] addclass (Child, ' slider-item ') child.style.width = sliderwidth + ' P        X ' width + = sliderwidth} if (This.loop &&!isresize) {width + = 2 * sliderwidth } this. $refs. SliderGroup.style.width = width + ' px '}, _initslider () {this.slider = new BSc Roll (this. $refs. Slider,{scrollx:true, Scrolly:false, Momentum:false, Snap:true, Snaploop:this.          Loop, snapthreshold:0.3, snapspeed:400}) This.slider.on (' Scrollend ', () = {          Let PageIndex = This.slider.getCurrentPage (). PageX if (this.loop) {pageIndex-= 1} This.currentpageindex = PageIndex if (this.autoplay) {This._play ()}}) thi        S.slider.on (' Beforescrollstart ', () = {if (this.autoplay) {cleartimeout (This.timer)} })}, _initdots () {this.dots = new Array (this.children.length)}, _play () {Let P Ageindex = This.currentpageindex + 1 if (this.loop) {pageIndex + = 1} this.timer = Settimeo UT (() = {this.slider.goToPage (pageIndex, 0, +)}, This.interval)}}}</script><s Tyle scoped lang= "stylus"Rel=" Stylesheet/stylus "> @import" ~common/stylus/variable ". Slider min-height:1px. Slider-group positio N:relative Overflow:hidden white-space:nowrap. Slider-item float:left box-sizing:border- Box Overflow:hidden text-align:center a display:block width:100% overf  Low:hidden text-decoration:none img display:block width:100%. Dots Position:  Absolute right:0 left:0 bottom:12px text-align:center font-size:0. Dot Display: Inline-block margin:0 4px width:8px height:8px border-radius:50% background: $colo R-text-l &.active width:20px border-radius:5px background: $color-text-ll</styl E>

  

2: The components will contain addclass and hasclass operations, but there is no jquery, but the native JS encapsulates the two methods. Create a new dom.js under Src/common/js:

Export function Hasclass (EL, className) {let  reg = new RegExp (' (^|\\s) ' + ClassName + ' (\\s|$) ')  return Reg.test ( El.classname)}export function addclass (el, className) {  if (Hasclass (el, ClassName)) {    return  }  let Newclass = El.className.split (")  Newclass.push (className)  el.classname = Newclass.join (')}

3: Page data is used JSONP cross-domain request QQ music data. GitHub Address: Portal. Next we create a new jsonp.js under Src/common/js to encapsulate the common Jsonp method:

Import Originjsonp from ' JSONP ' export default function Jsonp (URL, data, option) {  URL + = (url.indexof ('? ') < 0?) '? ': ' & ') + param (data)  return new Promise ((resolve, reject) = {    Originjsonp (URL, option, (Err, data) =&G T {      if (!err) {        Resolve (data)      } else {        reject (err)}}  )})}export function param (data) { Let  url = "for  (var. k in data) {let    value = data[k]!== undefined? Data[k]: '    url + = ' & ' + K + ' = ' + encodeuricomponent (value)  }  return URL? url.substring (1): '}

  

4: When we request data asynchronously, there will generally be some common parameters, so we can define these common parameters as constants. Create a new config.js under Src/api:

Export Const COMMONPARAMS = {  g_tk:1928093487,  incharset: ' Utf-8 ',  outcharset: ' Utf-8 ',  notice:0 ,  format: ' JSONP '}export const options = {  param: ' jsonpcallback '}export const ERR_OK = 0

4: Defines the file that gets the carousel graph data. Create a new recommend.js under Src/api:

Import Jsonp from ' Common/js/jsonp ' import {commonparams, options} from './config ' export function Getrecommend () {  Const URL = ' HTTPS://C.Y.QQ.COM/MUSICHALL/FCGI-BIN/FCG_YQQHOMEPAGERECOMMEND.FCG '  const data = Object.assign ({}, Commonparams, {    platform: ' h5 ',    uin:0,    neednewcode:1  })  return Jsonp (URL, data, options)}

5: Modify Recommend.vue:

<template> <div class= "recommend" ref= "recommend" > <div class= "recommend-content" > <div v-if= " Recommends.length "class=" Slider-wrapper "ref=" Sliderwrapper "> <slider> <div v-for=" item in Recomm Ends "> <a:href=" Item.linkurl ">  </a> </div> </slider> </div> </div> </div></temp Late><script type= "text/ecmascript-6" > Import Slider from ' Base/slider/slider ' import {getrecommend} from ' API    /recommend ' Import {ERR_OK} from ' Api/config ' export default {data () {return {recommends: []} }, created () {this._getrecommend ()}, methods: {_getrecommend () {getrecommend (). then (res) =      > {if (res.code = = = Err_ok) {this.recommends = Res.data.slider}})}, LoadImage () {if (!this.checkloaded) {this.checkloaded = True this. $refs. Scroll.refresh ()}}, Compon Ents: {Slider}}</script><style scoped lang= "Stylus" rel= "Stylesheet/stylus" > @import "~common/stylu S/variable ". Recommend position:fixed width:100% top:88px bottom:0. Recommend-content height:100 % Overflow:hidden. Slider-wrapper position:relative width:100% Overflow:hidden. Re Commend-list. List-title height:65px line-height:65px text-align:center Font          -size: $font-size-medium color: $color-theme. Item Display:flex Box-sizing:border-box  Align-items:center padding:0 20px 20px 20px. Icon flex:0 0 60px Width:            60px padding-right:20px. Text Display:flex flex-direction:column Justify-content:center           Flex:1 line-height:20px overflow:hidden font-size: $font-size-medium . Name margin-bottom:10px color: $color-text. Desc Color: $color-te xt-d. Loading-container position:absolute width:100% top:50% Transform:translatey (-50 %) </style>

Vue Mobile Music App Development Learning (III): Development of Carousel Diagram components

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.