近日在写手机号获取验证登录的时候，输入手机号清空的时候发现安卓手机需要点击两次才能清空，为啥要点2次才能清空？

• 点第一次失去焦点，点第二次input才被清空
• wxml

<input value="{{phone}}" name="phone" bindblur="onBlur" bindinput='onInput' data-t="phone" placeholder="请输入手机号" maxlength="11" placeholder-class="placeholder-class" type="number" focus='{{isfocus}}'></input>
<image bindtap="clearPhone" wx:if="{{phone}}" src="/images/icon_del.png"></image>

• js

data: {
   phone:'',
   isfocus:false
  },
  clearPhone(e){
    this.setData({
          isfocus: false,
          phone: ''
    })
 }

• 解决方案

clearPhone(e) {
    wx.hideKeyboard({
      complete: res => {
        this.setData({
          isfocus: false,
          phone: ''
        })
      }
    })
    this.setData({
      isfocus: false
    }, () => {
      this.setData({
        phone: ''
      })
    })
  },