Home > Web Front-end > JS Tutorial > Recommended use of JavaScript resource preloading components and sliding screen components_javascript skills

Recommended use of JavaScript resource preloading components and sliding screen components_javascript skills

WBOY
Release: 2016-05-16 15:11:06
Original
1312 people have browsed it

Resource preloading component——preload

  • Queue, which can support queue loading and callback, and can also load video or audio
  • Progress bar, you can dynamically obtain progress bar information
  • Supports preloading of img tags, just add the pSrc attribute
  • Native ES5
  • demo

Install:

git clone https://github.com/jayZOU/preload.git
npm install
npm run es6
Copy after login

Visit http://localhost:8080/es6-demo

Examples
  <audio pSrc="../public/audio/a.mp3" preload="auto" controls></audio>
  <audio pSrc="../public/audio/b.mp3" preload="auto" controls></audio>

  <img pSrc="../public/image/b1.jpg" alt="">
  <img pSrc="../public/image/b2.jpg" alt="">
  <img pSrc="../public/image/b3.jpg" alt="">
  <img pSrc="../public/image/b4.jpg" alt="">
  /**
  *  Preload 资源预加载组件
  *  @author jayzou
  *  @time 2016-1-12
  *  @version 1.0.6
  *  @class Preload
  *  @param {object}  sources        必填 加载队列容器,支持队列加载以及加载一个队列后传入回调
  *  @param {boolean} isDebug        选填   是否开启debug选项,用于移动端调试,默认false
  *  @param {object} connector      选填   后台数据接口,可选择同步或异步
  *  @param int     loadingOverTime   选填   预加载超时时间,默认15, 单位:秒
  *  @param {object} loadingOverTimeCB  选填   预加载超时回调
  *  @param {object}  wrap        选填  进度条容器,返回记载进度信息
  *  @param {object}  completeLoad    选填  完成所有加载项执行回调,包括同、异步获取数据
  **/

  var preload = new Preload({
    isDebug: true,
    sources: {
      imgs: {
        source: [
          "../public/image/b2.jpg",
          "../public/image/b1.jpg"
        ],
        callback: function() {
          console.log("队列1完成");
        }
      },
      audio: {
        source: [
          "../public/audio/a.mp3",
          "../public/audio/b.mp3"
        ]
      },
      imgs2: {
        source: [
          "../public/image/b3.jpg",
          "../public/image/b4.jpg",
          "http://7xl041.com1.z0.glb.clouddn.com/OrthographicCamera.png",
          "http://7xl041.com1.z0.glb.clouddn.com/audio.gif",
        ],
        callback: function() {
          console.log("队列3完成");
        }
      }
    },
    loadingOverTime: 3,
    loadingOverTimeCB: function(res) {
      console.log("资源加载超时:", res);
    },
    connector: {
      int1: {
        url: 'http://localhost/test/index.php&#63;callback=read&city=上海市',
        jsonp: true
      },
      int2: {
        url: 'http://localhost/test/index.php&#63;callback=read&city=深圳市',
        jsonp: false,
        callback: function(data) {
          console.log("同步:", data);
        }
      }
    },
    progress: function(completedCount, total) {
      // console.log(total);
      console.log(Math.floor((completedCount / total) * 100));
    },
    completeLoad: function() {
      console.log("已完成所有加载项");
    }
  });

  function read() {
    console.log("异步:", arguments[0])
  }

Copy after login

Notes
Queue names cannot have the same name, otherwise the subsequent queue will overwrite the previous one
Written in ES6 mode, synchronous loading between queues, and resources within the queue are loaded asynchronously


Sliding screen component——slide

  • Customized sliding screen component, customizable sliding screen animation
  • Can control the animation effect of each screen

Install:

git clone https://github.com/jayZOU/slide.git
npm install
gulp
Copy after login

Visit http://localhost:8080/

Examples
全选复制放进笔记  /**
  *  slide 滑屏组件
  *  @author jayzou
  *  @time 2015-10-25
  *  @version 0.0.1
  *  @class Slide
  *  @param String  wrap          必填  传入滑动容器ID
  *  @param String  currentClass      选填  滑动时切换动画class,默认current
  *  @param boolean  startLocalstorage    选填  记录当前浏览页面
  *  @param {Object} onChange        选填  切换完成回调
  *  @param {Object} onDownChange      选填  下滑完成时回调
  *  @param {Object} onUpChange       选填  上滑完成时回调
  *  @param {Object} defaultClass      选填  滑动过程动画效果
  **/

  var slide = new Slide({
    wrap: 'wrap',          //必填,传入滑动容器ID
    currentClass: 'current',    //选填,滑动时切换动画class
    startLocalstorage: false,    //选填,是否开启localstorage记录页面返回后是否回到上次访问的页面,默认false
    onChange: function(){      //选填,每屏切换完成时的回调
      console.log("onchange");
    },
    onDownChange: function(){    //选填,下滑完成时回调
      console.log("onDownChange");
    },
    onUpChange: function(){    //选填,上滑完成时回调
      console.log("onUpChange");
    },
    defaultClass: {          //选填,滑动过程动画效果
      'webkitTransition': '-webkit-transform 0.5s ease',  //需要加前缀
      'transform': 'translate(0px, 0px)'          //不需要加前缀
    },
  });

  // slide.next();            //下一页
  // slide.prev();            //上一页
  // slide.playTo(3);            //直接跳转第n页
  // console.log(slide.getPage());    //获取为当前页数
  // slide.lockPage();          //锁住屏幕,禁止滑动
  // slide.unLockPage();          //解锁屏幕,允许滑动

  //辅助类
  // slide.toggleClass(targ, className);  //置换class
  // slide.addClass(targ, className);    //添加class
  // slide.removeClass(targ, className);  //删除class
  // slide.css(o, style);          //添加style样式

Copy after login

Notes
The sliding container can only pass in the ID value, not class

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template