微信小程序实现文字长按复制与一键复制功能全过程

 <!-- index.wxml -->
<view>
  <!-- 长按复制 -->
  <view bindlongtap="copyText" data-key="{{item.cdkey}}">{{ item.cdkey }}</view>
  <text bindlongtap="copyText" data-key="{{item.cdkey}}">{{ item.cdkey }}</text>
   <!-- 一键复制 -->
  <view bindtap="copyText" data-key="{{item.cdkey}}" > 复制 </view>
</view>

// index.js
 copyText(e) {
    let key = e.currentTarget.dataset.key;
    wx.setClipboardData({ //设置系统剪贴板的内容
      data: key,
      success(res) {
        console.log(res, key);
        wx.getClipboardData({ // 获取系统剪贴板的内容
          success(res) {
            wx.showToast({
              title: '复制成功',
            })
          }
        })
      }
    })
  }

// page.json
{
    "usingComponents": {
        "mp-select-text": "@miniprogram-component-plus/select-text"
    }
}

<view bind:tap="handleTap">
  <view class="demo-block">
    <block wx:for="{{arr}}" wx:key="placement">
      <view class="list-item">
        <mp-select-text 
          show-copy-btn 
          placement="{{item.placement}}" 
          value="{{item.value}}" 
          data-id="{{index}}" 
          bindcopy="onCopy"
          on-document-tap="{{evt}}"
        >
        </mp-select-text>
      </view>
    </block>
    <view class="list-item">
      <mp-select-text value="默认的长按效果与浏览器一致"></mp-select-text>
    </view>
  </view>
</view>