微信內h5頁面打開小程序

相關配置

1. 微信js文件版本大於等於1.6.0
   https://res.wx.qq.com/open/js/jweixin-1.6.0.js

2. 微信受權配置

   window.wx.config({
    ...otherConfig,
    openTagList: ['wx-open-launch-weapp']
   })

3. 調用示例

   const style = {
     position: 'absolute',
     top: 0,
     right: 0,
     bottom: 0,
     left: 0,
   };
   
   function OpenWeapp({ originId, pagePath }) {
     return (
    <wx-open-launch-weapp username={originId} path={pagePath} style={style}>
      <script type="text/wxtag-template">
        <div style={style} />
      </script>
    </wx-open-launch-weapp>
     );
   }
   
   // 使用方式
   <div style={{ position: 'relative' }}>
   點擊跳轉小程序
   <OpenWeapp originId="gh_xxxxxxxx" pagePath="pages/home/index?user=123&action=abc" />
   </div>

爲何給div添加position: relative呢？

因爲wx-open-launch-weapp設置樣式比較困難，故放棄設置樣式，將wx-open-launch-weapp做爲一個透明的佔位元素，撐滿父元素，也能達到預期的功能