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HTML

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Adding Classes

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About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

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Insecure Resource

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CSS

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                <canvas id="canvas"></canvas>

<script type="text/template" id="template">
  <view class="container" id="main">
  <view class="header">
    <text font="fnt_number-export" class="title" value="等级"></text>
  </view>
  <view class="rankList">
        <scrollview id="list" class="list" scrollY="true">
            {{~it.data :item:index}}
                {{? index % 2 === 1 }}
                <view class="listItem listItemOld">
                {{?}}
                {{? index % 2 === 0 }}
                <view class="listItem">
                {{?}}
                    <text font="fnt_number-export" class="listItemNum" value="{{= index + 1}}"></text>
                    <image class="listHeadImg" src="{{= item.avatarUrl }}"></image>
                  <text class="listItemName" value="{{= item.nickname}}"></text>
                  <text class="listItemScore" value="{{= item.rankScore}}"></text>
                  <text class="listScoreUnit" value="分"></text>
                </view>
            {{~}}
        </scrollview>
        <text class="listTips" value="仅展示前50位好友排名"></text>

        <view class="listItem selfListItem">
            <text font="fnt_number-export" class="listItemNum" value="{{= it.selfIndex}}"></text>
            <image class="listHeadImg" src="{{= it.self.avatarUrl }}"></image>
            <text class="listItemName" value="{{= it.self.nickname}}"></text>
            <text class="listItemScore" value="{{= item.rankScore}}"></text>
            <text class="listScoreUnit" value="分"></text>
        </view>
    </view>
</view>

</script>

<script id="style">
  window.styleValue = {
    container: {
      width: 960,
      height: 1410,
      borderRadius: 12,
    },
    header: {
      height: 120,
      width: 960,
      flexDirection: 'column',
      alignItems: 'center',
      backgroundColor: '#ffffff',
      borderBottomWidth: 0.5,
      borderColor: 'rgba(0, 0, 0, 0.3)',
    },
    title: {
      width: 144,
      fontSize: 48,
      height: 120,
      lineHeight: 120,
      textAlign: 'center',
      fontWeight: 'bold',
      borderBottomWidth: 6,
      borderColor: '#000000',
      verticalAlign: 'middle'
    },
    rankList: {
      width: 960,
      height: 1000,
      backgroundColor: '#ffffff',
    },
    list: {
      width: 960,
      height: 950,
      backgroundColor: '#ffffff',
      marginTop: 30,
    },
    listItem: {
      backgroundColor: '#F7F7F7',
      width: 960,
      height: 150,
      flexDirection: 'row',
      alignItems: 'center',
    },
    listItemOld: {
      backgroundColor: '#ffffff',
    },
    listItemNum: {
      fontSize: 32,
      fontWeight: 'bold',
      lineHeight: 150,
      height: 150,
      textAlign: 'center',
      width: 120,
      verticalAlign: 'middle'
    },
    listHeadImg: {
      width: 90,
      height: 90,
      borderRadius: 15,
      borderWidth: 5,
      borderColor: 'red',
    },
    listItemScore: {
      fontSize: 48,
      fontWeight: 'bold',
      marginLeft: 10,
      height: 150,
      lineHeight: 150,
      width: 300,
      textAlign: 'right',
    },
    listItemName: {
      fontSize: 36,
      height: 150,
      lineHeight: 150,
      width: 350,
      marginLeft: 30,
    },
    listScoreUnit: {
      opacity: 0.5,
      color: '#000000',
      fontSize: 30,
      height: 150,
      lineHeight: 150,
      marginLeft: 8,
    },
    selfListItem: {
      borderRadius: 20,
      marginTop: 50,
      backgroundColor: '#ffffff',
    },
    listTips: {
      width: 960,
      height: 90,
      lineHeight: 90,
      textAlign: 'center',
      fontSize: 30,
      color: 'rgba(0,0,0,0.5)',
      backgroundColor: '#ffffff',
      borderRadius: 10,
    }
  }
</script>
!

CSS
!

JS 

              
                import * as dot from "https://cdn.skypack.dev/dot@1.1.3";
import Layout from "https://cdn.skypack.dev/minigame-canvas-engine";

/**
 * 只需要在Web端调试场景下引用
 * 引入minigame-canvas-engine-devtools之后，layoutDevtools会自动挂载到windows
 */
import LayoutDevTools from "https://cdn.skypack.dev/minigame-canvas-engine-devtools";
window.layoutDevtools.init(Layout);

const template = document.getElementById("template").innerHTML;
const style = eval(document.getElementById("style").innerHTML);

// 创建mock数据
let item = {
  nickname: "zim",
  rankScore: 1,
  avatarUrl:
    "https://res.wx.qq.com/wechatgame/product/webpack/userupload/20191119/wegoing.jpeg"
};
let datasource = {
  data: [],
  selfIndex: 1,
  self: item
};
for (let i = 0; i < 20; i++) {
  var cp = JSON.parse(JSON.stringify(item));
  cp.rankScore = Math.floor(Math.random() * 1000 + 1);
  datasource.data.push(cp);
}

// 将XML模板编译成XML字符串
let tempFn = dot.template(template);
let resultText = tempFn(datasource);

function init() {
  let canvas = document.getElementById("canvas");
  let context = canvas.getContext("2d");

  // 每次初始化之前先执行清理逻辑保证内存不会一直增长
  Layout.clear();
  // 初始化引擎
  Layout.init(resultText, style);

  // 设置canvas的尺寸和样式的container比例一致
  canvas.width = 960;
  canvas.height = 1410;
  canvas.style.width = 300 + "px";
  canvas.style.height = (canvas.height / canvas.width) * 300 + "px";

  Layout.updateViewPort(canvas.getBoundingClientRect());

  Layout.layout(context);
}

init();
!
999px

Console