微信小程序实现富文本编辑器

1.参考官方文档

　　https://developers.weixin.qq.com/miniprogram/dev/component/editor.html

　　在文档最下方有示例代码，如下图：

　　点击“在开发者工具中预览效果”

2.将示例代码保存至桌面，以便后期操作

3.文件甲中有一下文件，如下图，我们主要使用前两个文件夹

4.将前两个文件甲复制到你项目的根目录下

5.写代码

　　wxml代码：

<view class="container" style="height:{{editorHeight}}px;">
  <editor id="editor" class="ql-container" placeholder="{{placeholder}}" bindstatuschange="onStatusChange" bindready="onEditorReady">
  </editor>
</view>

<view class="toolbar" catchtouchend="format" hidden="{{keyboardHeight > 0 ? false : true}}" style="bottom: {{isIOS ? keyboardHeight : 0}}px">
  <i class="iconfont icon-charutupian" catchtouchend="insertImage"></i>
  <i class="iconfont icon-format-header-2 {{formats.header === 2 ? 'ql-active' : ''}}" data-name="header" data-value="{{2}}"></i>
  <i class="iconfont icon-format-header-3 {{formats.header === 3 ? 'ql-active' : ''}}" data-name="header" data-value="{{3}}"></i>
  <i class="iconfont icon-zitijiacu {{formats.bold ? 'ql-active' : ''}}" data-name="bold"></i>
  <i class="iconfont icon-zitixieti {{formats.italic ? 'ql-active' : ''}}" data-name="italic"></i>
  <i class="iconfont icon-zitixiahuaxian {{formats.underline ? 'ql-active' : ''}}" data-name="underline"></i>
  <i class="iconfont icon--checklist" data-name="list" data-value="check"></i>
  <i class="iconfont icon-youxupailie {{formats.list === 'ordered' ? 'ql-active' : ''}}" data-name="list" data-value="ordered"></i>
  <i class="iconfont icon-wuxupailie {{formats.list === 'bullet' ? 'ql-active' : ''}}" data-name="list" data-value="bullet"></i>
</view>

　　js代码：

Page({
    data: {
      formats: {},
      readOnly: false,
      placeholder: '开始输入...',
      editorHeight: 300,
      keyboardHeight: 0,
      isIOS: false
    },
    readOnlyChange() {
      this.setData({
        readOnly: !this.data.readOnly
      })
    },
    onLoad() {
      const platform = wx.getSystemInfoSync().platform
      const isIOS = platform === 'ios'
      this.setData({ isIOS})
      const that = this
      this.updatePosition(0)
      let keyboardHeight = 0
      wx.onKeyboardHeightChange(res => {
        if (res.height === keyboardHeight) return
        const duration = res.height > 0 ? res.duration * 1000 : 0
        keyboardHeight = res.height
        setTimeout(() => {
          wx.pageScrollTo({
            scrollTop: 0,
            success() {
              that.updatePosition(keyboardHeight)
              that.editorCtx.scrollIntoView()
            }
          })
        }, duration)
  
      })
    },
    updatePosition(keyboardHeight) {
      const toolbarHeight = 50
      const { windowHeight, platform } = wx.getSystemInfoSync()
      let editorHeight = keyboardHeight > 0 ? (windowHeight - keyboardHeight - toolbarHeight) : windowHeight
      this.setData({ editorHeight, keyboardHeight })
    },
    calNavigationBarAndStatusBar() {
      const systemInfo = wx.getSystemInfoSync()
      const { statusBarHeight, platform } = systemInfo
      const isIOS = platform === 'ios'
      const navigationBarHeight = isIOS ? 44 : 48
      return statusBarHeight + navigationBarHeight
    },
    onEditorReady() {
      const that = this
      wx.createSelectorQuery().select('#editor').context(function (res) {
        that.editorCtx = res.context
      }).exec()
    },
    blur() {
      this.editorCtx.blur()
    },
    format(e) {
      let { name, value } = e.target.dataset
      if (!name) return
      // console.log('format', name, value)
      this.editorCtx.format(name, value)
  
    },
    onStatusChange(e) {
      const formats = e.detail
      this.setData({ formats })
    },
    insertDivider() {
      this.editorCtx.insertDivider({
        success: function () {
          console.log('insert divider success')
        }
      })
    },
    clear() {
      this.editorCtx.clear({
        success: function (res) {
          console.log("clear success")
        }
      })
    },
    removeFormat() {
      this.editorCtx.removeFormat()
    },
    insertDate() {
      const date = new Date()
      const formatDate = `${date.getFullYear()}/${date.getMonth() + 1}/${date.getDate()}`
      this.editorCtx.insertText({
        text: formatDate
      })
    },
    insertImage() {
      const that = this
      wx.chooseImage({
        count: 1,
        success: function (res) {
          that.editorCtx.insertImage({
            src: res.tempFilePaths[0],
            data: {
              id: 'abcd',
              role: 'god'
            },
            width: '80%',
            success: function () {
              console.log('insert image success')
            }
          })
        }
      })
    },
    click:function(e){
      console.log(e.currentTarget.dataset.name)
    }
  })

　　wxss代码：（注：前两行的路径要自行修改）

@import "../../common/lib/weui.wxss";
@import "../../editor/assets/iconfont.wxss";

.container {
  position: absolute; 
  top: 0; 
  left: 0; 
  width: 100%;
}

.ql-container {
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  font-size: 16px;
  line-height: 1.5;
  overflow: auto;
  padding: 10px 10px 20px 10px;
  border: 1px solid #ECECEC;
}

.ql-active {
  color: #22C704;
}

.iconfont {
  display: inline-block;
  width: 30px;
  height: 30px;
  cursor: pointer;
  font-size: 20px;
}

.toolbar {
  box-sizing: border-box;
  padding: 0 10px;
  height: 50px;
  width: 100%;
  position: fixed;
  left: 0;
  right: 100%;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid #ECECEC;
  border-left: none;
  border-right: none;
}

　　json代码：

{
  "navigationBarTitleText": "发表文章",
  "disableScroll": true
}

6.然后依次保存就好

7.最后点击真机调试，用手机扫描二维码便可以使用了。