微信小程序自定义showModel为转发按钮

效果图

布局 wxml

<view class='goods-detail-m' wx:if='{{isShowModel}}'>
  <view class="mask-m"></view>
  <view class="goodsdetail-m">
    <view class='goodsdetail-m-title'>{{modelText}}</view>
    <view class='goodsdetail-m-body'>
      <view class='goodsdetail-m-body-left' bindtap='cancel'>确定</view>
      <button class='goodsdetail-m-body-right' open-type='share'>转发</button>
    </view>
  </view>
</view>

wxss

.comment {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  background: #fff;
  z-index: #999;
}

.pen {
  width: 41rpx;
  margin-left: 20rpx;
  height: 41rpx;
  margin-top: 10rpx;
}

.pen-div {
  display: inline-block;
  vertical-align: top;
}

.pen-text {
  display: inline-block;
  vertical-align: top;
}

.pen-input {
  margin-left: 6rpx;
  line-height: 60rpx;
  font-size: 24rpx;
  font-weight: 100rpx;
  letter-spacing: 2rpx;
}

.showBottom {
  width: 100%;
  height: 86rpx;
  border-top: 1rpx solid #e1e1e1;
}

.showText {
  display: inline-block;
  vertical-align: top;
  width: 50%;
  height: 60rpx;
  background: #e1e1e1;
  margin: 15rpx;
  margin-left: 38rpx;
  border-radius: 50rpx;
}

.showButtom {
  display: inline-block;
  vertical-align: top;
  widows: 40%;
  height: 80rpx;
}

.comment-number-ioc {
  widows: 51rpx;
  margin-left: 48rpx;
  height: 51rpx;
  margin-top: 23rpx;
}

.cnNuberm {
  position: absolute;
  width: 45rpx;
  height: 20rpx;
  border-radius: 30rpx;
  background: red;
  color: #fff;
  font-size: 18rpx;
  line-height: 20rpx;
  text-indent: 4rpx;
  top: 14rpx;
  left: 500rpx;
}

.collect-ioc {
  width: 51rpx;
  margin-left: 51rpx;
  height: 46rpx;
  margin-top: 20rpx;
}

.comment-number {
  display: inline-block;
  vertical-align: top;
}

.collect {
  display: inline-block;
  vertical-align: top;
}

.share {
  display: inline-block;
  vertical-align: top;
}

.share-ioc {
  width: 53rpx;
  margin-left: 51rpx;
  height: 46rpx;
  margin-top: 20rpx;
}

.send-comment {
  width: 100%;
  height: 86rpx;
  margin: 5rpx;
  border-top: 1rpx solid #e1e1e1;
}

.send-input {
  width: 530rpx;
  min-height: 65rpx;
  max-height: 86rpx;
  height: 65rpx;
  background: #e1e1e1;
  border-radius: 30rpx;
  outline: none;
  overflow: hidden;
  padding-left: 20rpx;
  margin-bottom: 24rpx;
}

.send-view {
  display: inline-block;
  vertical-align: top;
  margin: 15rpx 15rpx 15rpx 55rpx;
}

.send-buttom {
  display: inline-block;
  vertical-align: top;
  margin: 18rpx 22rpx 18rpx 18rpx;
}

.send-text {
  font-size: 34rpx;
  font-weight: 320;
  color: #e1e1e1;
}

.activty {
  color: #009a61;
}

@font-face {
  font-family: 'icomoon';
  src: url('fonts/icomoon.eot?qb36fn');
  src: url('fonts/icomoon.eot?qb36fn#iefix') format('embedded-opentype'),
         url('fonts/icomoon.ttf?qb36fn') format('truetype'),
         url('fonts/icomoon.woff?qb36fn') format('woff'),
         url('fonts/icomoon.svg?qb36fn#icomoon') format('svg');
  font-weight: normal;
  font-style: normal;
}

.iconfont {
  font-family: "icomoon" !important;
  font-size: 16px;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  -webkit-text-stroke-width: 0.2px;
  -moz-osx-font-smoothing: grayscale;
}

@font-face {
  font-family: 'icomoon';
  src: url(data:application/font-woff2;charset=utf-8;base64,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) format('woff2');
  font-weight: normal;
  font-style: normal;
}

[class^="icon-"], [class*=" icon-"] {
  /* use !important to prevent issues with browser extensions that change fonts */
  font-family: 'icomoon' !important;
  speak: none;
  font-style: normal;
  font-weight: normal;
  font-variant: normal;
  text-transform: none;
  line-height: 1;
  /* Better Font Rendering =========== */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.icon-cheveron-down:before {
  content: "\e900";
}

.icon-cheveron-left:before {
  content: "\e901";
}

.icon-cheveron-right:before {
  content: "\e902";
}

.icon-cheveron-up:before {
  content: "\e903";
}

.swiper {
  width: 100%;
}

/* showModel自定义 start */

.goods-detail-m .mask-m {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
}

.goods-detail-m .mask-m {
  background: rgba(0, 0, 0, 0.2);
}

.goodsdetail-m {
  position: fixed;
  top: 380rpx;
  left: 125rpx;
  z-index: 4999999999;
  width: 500rpx;
  /* height: 190rpx; */
  background: #fff;
}

.goodsdetail-m-title {
  width: 420rpx;
  /* height: 100rpx; *//* box-sizing: border-box; *//* border: 1rpx solid #aaa; */
  padding: 30rpx 40rpx 30rpx 40rpx;
  font-size: 28rpx;
  color: #aaa;
  text-align: center;
}

.goodsdetail-m-body {
  width: 500rpx;
  height: 90rpx;
  display: flex;
}

.goodsdetail-m-body-left {
  width: 250rpx;
  box-sizing: border-box;
  height: 90rpx;
  line-height: 90rpx;
  font-size: 30rpx;
  color: #aaa;
  border-top: 1rpx solid #e5e5e6;
  text-align: center;
}

.goodsdetail-m-body-right {
  width: 250rpx;
  box-sizing: border-box;
  height: 90rpx;
  line-height: 90rpx;
  font-size: 30rpx;
  color: #3cc51f;
  border-top: 1rpx solid #e5e5e6;
  border-left: 1rpx solid #e5e5e6;
  border-radius: 0;
  text-align: center;
}

button {
  background: #fff;
}

button::after {
  border: none;
  border-radius: 0px;
}

/* showModel自定义 end */

js

onLoad: function(options) {
    var that = this

    that.setData({
      modelText: '我是自定义转发按钮',
      isShowModel: true
    })
  },

  //点击自定义showModel
  cancel: function(e) {
    var that = this
    that.setData({
      isShowModel: false
    })
  },