前言

類似與抖音、小紅書(shū)里面的評(píng)論框。默認(rèn)顯示在頁(yè)面底部，評(píng)論、回復(fù)時(shí)彈起按鍵與輸入框（也可默認(rèn)不顯示，只有評(píng)論、回復(fù)時(shí)彈起示），如下圖：

小程序評(píng)論、回復(fù)框.jpg

實(shí)現(xiàn)代碼

• test.wxml

<!--pages/test/test.wxml-->
<view class="container">
  <button bindtap="bindReply">回復(fù)</button>
  <view class="release">
    <textarea 
      class="text"
      placeholder-class="releaseInput"
      value="{{content}}"
      fixed="true" 
      maxlength="120" 
      show-confirm-bar="{{false}}" 
      cursor-spacing="15" 
      auto-height="true" 
      focus="{{focus}}"
      placeholder="回復(fù) {{user.name}}"
      value="{{content}}"
      bindinput="contentInput"></textarea>
    <view class="submit" bindtap="comment">發(fā)送</view>
  </view>
</view>

• test.wxss

/* pages/test/test.wxss */
.release{
  font-size: 14px;
  background-color: #fff;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  box-sizing: border-box;
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  padding: 5px 0 5px 15px;
}
.releaseInput{
  color: #ccc;
}
.release .text{
  width: 302px;
  min-height: 17px;
  max-height: 51px;
  line-height: 17px;
  border-width: 7px 10px;
  border-style: solid;
  border-color: #fff;
  background-color: #fff;
}
.release .submit{
  color: #6c0;
  width: 58px;
  height: 32px;
  line-height: 32px;
  text-align: center;
}

• test.js

//test/test.js
Page({
  data: {
    content: '',
    focus: false
  },
  bindReply(e) {
    this.setData({
      focus: true
    });
  },
  contentInput(e) { //當(dāng)輸入框的值發(fā)生改變時(shí)，獲取
    this.setData({
      content: e.detail.value
    });
  }
})