// 使用的页面 通过 id 获取 nvue 子窗体
const subNVue = uni.getSubNVueById('promote');
subNVue.show('', 250, () => {
  uni.$emit('promote', this.promotionData)
});

子nvue页面  必须是nvue

<template>
<div class="popup-share">
<image class="popup" src="/static/extension/popup.png" mode="widthFix">
<image class="popup-btn" src="/static/extension/popup-btn.png" mode="widthFix" @click="copy">
<image class="popup-close" src="/static/extension/popup-close.png" mode="widthFix" @click="subNVue.hide()">
</div>
</template>

<script>
export default {
data() {
return {
promotionData: {},
subNVue: null,
}
},
onLoad() {
// uni.getCurrentSubNVue().addEventListener("show", function() {
// console.log("subNVue子窗体已显示！")

// });
// uni.getCurrentSubNVue().addEventListener("hide", function() {
// console.log("subNVue子窗体已隐藏！")

// });
this.subNVue = uni.getSubNVueById('promote');
uni.$on('promote', res => {
this.promotionData = res;
})
},
onUnload() {
uni.$off('promote');
},
methods: {
// 复制链接
copy() {
uni.setClipboardData({
data: this.promotionData.promote_url,
success: res => {
uni.showToast({
icon: 'success',
title: '复制成功',
duration: 2000
});
}
});
}
}
}
</script>

<style lang="scss" scoped>
.popup-share{
display: flex;
justify-content: center;
align-items: center;
width: 676rpx;
position: relative;
}
.popup{
position: absolute;
left:0;
top:0;
width: 676rpx;
}
.popup-btn{
position: relative;
top: 500rpx;
width: 396rpx;
}
.popup-close{
position: relative;
top: 620rpx;
width: 52rpx;
}
</style>



pages.json里面
  ,{
      "path" : "pages/player/player",
"app-plus": {
    "softinputMode": "adjustResize"
 },
      "style" :                                                                                    
      {
 "navigationBarTitleText": "",
 "enablePullDownRefresh": false,
 "app-plus": {
  "subNVues": [
   {
    "id": "promote",
    "path": "components/modal/modal-promote",
    "type": "popup",
    "style": {
     "position": "dock",
     "dock": "bottom",
     "width": "676rpx",
     "height": "800rpx",
     "margin": "auto",
       "background": "transparent"
    }
   }
  ]
 }
      }
  }