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 大概的效果就和原来图差不多。

思路解析:车牌号码由31位汉字,26位字母,10位数字组成的,开头第一位由省份简称的汉字,第二位字母根据省份下的城市或地区区分,最后的五位或者六位,是有字母和数字组成的,共有七位的车牌号码和八位的车牌号码,(注:其中的八位数的车牌号码为能源车的车牌号码。)

大概的逻辑思维,不包含代码获取值什么的或者验证其他的说明,详细看代码片段。

第一,原型的设计思路:先设计好模拟键盘的大概架构,样式。这里的分为三个不同的模拟键盘结构合在一起,分部为汉字,字母,数字,其样式统一;

第二:数据的交互思路:对需要的数据绑定或者修改填充等,如何获取,通过什么方式获取,再怎么反馈出来,需要搭建好数据的来回交互传递的大概模型;

第三,交互的体验思路:触发或者在输入框点击输入的时候,启动模拟键盘,先用汉字选择,其次是字母,最后由字母和数字混合,对三个架构先进行需求排序的理清;

第四,功能的操作思路:模拟键盘的功能性按钮,比如数字与字母之间的的切换,删除最后一位数据,清空全部数据和状态,关闭的结束等操作等体验。

第五:输入判断的思路:判断车牌号码输入的位数,第一位和第二位分部是什么,字母与数字的切换的判断。删除到第几位需要在什么样的状态输入下等。

大概就这这些样子了,能写怎么多字,感觉都超纲了,如果有错的地方,还望留言指正。

最后是源码:

wxml:

 

 <view class='page wrapper'>
 <view class="weui-cell__bd">
  <view bindtap='LicensePlateNumber' class='LicensePlateNumber'>
  <input value='{{LicensePlateNumber}}' disabled='true' placeholder='请选择'></input>
  </view>
 </view>
 <view>
  <view class='licensePlateShow' hidden='{{licensePlateShowHidden}}'>
  <!-- 遮罩层 -->
  <view class='licensePlate_Bg' bindtap='licensePlate_close'>
  </view>
  <!-- 省份 -->
  <view class='licensePlate_provinces_Box' hidden='{{licensePlate_provinces_Box}}'>
   <view class='licensePlate_provincesTist' wx:for='{{licensePlate_provinces}}' bindtap='licensePlate_provinces' data-licensePlateProvinces='{{item}}' wx:key='index'>{{item}}</view>
   <view class='licensePlate_but' bindtap='licensePlate_close'>关闭</view>
  </view>
  <!-- 字母 -->
  <view class='licensePlate_letter_Box' hidden='{{licensePlate_letter_Box}}'>
   <view class='licensePlate_letterTist' wx:for='{{licensePlate_letter}}' bindtap='licensePlate_letter' data-licensePlateProvinces='{{item}}' wx:key='index'>{{item}}</view>
   <view class='licensePlate_letterTist_but'>
   <view class='licensePlate_but' bindtap='licensePlate_switchDigital'>数字</view>
   <view class='licensePlate_but' bindtap='licensePlate_delete'>删除</view>
   <view class='licensePlate_but' bindtap='licensePlate_empty'>清空</view>
   <view class='licensePlate_but' bindtap='licensePlate_close'>关闭</view>
   </view>
  </view>
  <!-- 数字 -->
  <view class='licensePlate_digital_Box' hidden='{{licensePlate_digital_Box}}'>
   <view class='licensePlate_digitalTist' wx:for='{{licensePlate_digital}}' bindtap='licensePlate_digital' data-licensePlateProvinces='{{item}}' wx:key='index'>{{item}}</view>
   <view class='licensePlate_digital_but'>
   <view class='licensePlate_but' bindtap='licensePlate_switchLetter'>字母</view>
   <view class='licensePlate_but' bindtap='licensePlate_delete'>删除</view>
   <view class='licensePlate_but' bindtap='licensePlate_empty'>清空</view>
   <view class='licensePlate_but' bindtap='licensePlate_close'>关闭</view>
   </view>
  </view>
  </view>
 </view>
 </view>

wxss:

  

@import "weui.wxss";
 page{
  min-height:%; 
 }
 .wrapper{
  width: rpx; 
  overflow:hidden;
 }
 .licensePlateShow{
 width: rpx; 
 min-height: %;
 position: absolute;
 bottom: ;
 }
 .licensePlate_Bg{
 min-height: %;
 width: rpx;
 position: absolute;
 z-index: ;
 overflow: hidden;
 }
 .licensePlate_provinces_Box{
 width: rpx; 
 background-color: #ddda;
 margin: auto;
 position: absolute;
 bottom: ;
 display: flex;
 display: -webkit-flex;
 flex-wrap: wrap;
 justify-content: flex-start;
 /* border-top: px solid #abbbd; */
 z-index: ;
 }
 .licensePlate_provincesTist{
 flex:%;
 height: rpx;
 line-height: rpx;
 margin: auto;
 text-align: center;
 background-color:#ffffff; 
 border-top: px solid #abbbd;
 border-left: px solid #abbbd;
 }
 .licensePlate_provincesTist:nth-child(n){
 border-right: px solid #abbbd;
 }
 .licensePlate_letter_Box{
 width: rpx; 
 background-color: #ddda;
 margin: auto;
 position: absolute;
 bottom: ;
 display: flex;
 display: -webkit-flex;
 flex-wrap: wrap;
 justify-content: flex-start;
 /* border-top: px solid #abbbd; */
 z-index: ;
 }
 .licensePlate_letterTist{
 flex:%;
 height: rpx;
 line-height: rpx;
 margin: auto;
 text-align: center;
 background-color:#ffffff; 
 border-top: px solid #abbbd;
 border-left: px solid #abbbd;
 }
 .licensePlate_letterTist:nth-child(n){
 border-right: px solid #abbbd;
 } 
 .licensePlate_letterTist:nth-child(){
 border-right: px solid #abbbd;
 }
 .licensePlate_letterTist_but{
 width: rpx;
 display: flex;
 display: -webkit-flex;
 flex-wrap: wrap;
 justify-content: flex-start;
 }
 .licensePlate_digital_Box{
 width: rpx; 
 background-color: #ddda;
 margin: auto;
 position: absolute;
 bottom: ;
 display: flex;
 display: -webkit-flex;
 flex-wrap: wrap;
 justify-content: flex-start;
 /* border-top: px solid #abbbd; */
 z-index: ;
 }
 .licensePlate_digitalTist{
 flex:%;
 height: rpx;
 line-height: rpx;
 margin: auto;
 text-align: center;
 background-color:#ffffff; 
 border-top: px solid #abbbd;
 border-left: px solid #abbbd;
 }
 .licensePlate_digital_but{
 width: rpx;
 display: flex;
 display: -webkit-flex;
 flex-wrap: wrap;
 justify-content: flex-start;
 }
 .licensePlate_but{
 flex: ;
 height: rpx;
 line-height: rpx;
 text-align: center;
 color: #ffffff;
 background-color:#ff; 
 border-top: px solid #abbbd;
 border-left: px solid #abbbd;
 }
 .licensePlate_but:last-child{
 border-right: px solid #abbbd;
 }
 .LicensePlateNumber{
 width: rpx;
 height: rpx;
 border-bottom: rpx solid #abbbd
 }

js:

  

 Page({
  data: {
  licensePlateShowHidden:true,
  licensePlate_provinces_Box:true,
  licensePlate_letter_Box: true, 
  licensePlate_digital_Box: true,
  licensePlate_provinces: [
  "京", "沪", "浙", "苏", "粤", "鲁", 
  "晋", "冀", "豫", "川", "渝", "辽", 
  "吉", "黑", "皖", "鄂", "津", "贵", 
  "云", "桂", "琼", "青", "新", "藏",
  "蒙", "宁", "甘", "陕", "闽", "赣", 
  "湘"
  ],
  licensePlate_letter: [
  "A", "B", "C", "D", "E", "F",
  "G", "H", "L", "J", "K", "L",
  "M", "N", "O", "P", "Q", "R",
  "S", "T", "U", "V", "W", "X",
  "Y", "Z"
  ],
  licensePlate_digital: [
  "", "", "", 
  "", "", "",
  "", "", "", 
  ""
  ],
  LicensePlateNumber:'',
 },
 // 显示模拟键盘
 LicensePlateNumber:function(){
  var that = this;
  var LicensePlateNumber = this.data.LicensePlateNumber;
  var LicensePlateNumberLen = LicensePlateNumber.length;
  console.log(LicensePlateNumber, LicensePlateNumberLen)
  if (LicensePlateNumberLen == ){
  this.setData({
   licensePlateShowHidden: false,
   licensePlate_provinces_Box: false,
  })
  } else if (LicensePlateNumberLen == ){
  this.setData({
   licensePlateShowHidden: false,
   licensePlate_letter_Box: false,
  })
  }else{
  this.setData({
   licensePlateShowHidden: false,
   licensePlate_digital_Box: false,
  })
  }
 },
 // 切换成字母
 licensePlate_switchLetter:function(){
  this.setData({
  licensePlate_provinces_Box:true,
  licensePlate_letter_Box:false,
  licensePlate_digital_Box: true,
  })
 },
 // 切换成数字
 licensePlate_switchDigital: function () {
  var LicensePlateNumber = this.data.LicensePlateNumber;
  var LicensePlateNumberLen = LicensePlateNumber.length;
  if (LicensePlateNumberLen == ){
  wx.showToast({
   title: '车牌号码第二位必须是字母',
   icon: 'none',
   duration: ,
  })
  }else{
  this.setData({
   licensePlate_provinces_Box: true,
   licensePlate_letter_Box: true,
   licensePlate_digital_Box: false,
  })
  }
 },
 // 删除
 licensePlate_delete: function (e) {
  var LicensePlateNumber = this.data.LicensePlateNumber;
  var LicensePlateNumberLen = LicensePlateNumber.length;
  var LicensePlateNumberDelete = LicensePlateNumber.split('');
  var NewLicensePlateNumber = LicensePlateNumberDelete.join('').slice(,-)
  if (LicensePlateNumberDelete.slice(,-).length == ){
  this.setData({
   licensePlate_provinces_Box: true,
   licensePlate_letter_Box: false,
   licensePlate_digital_Box: true,
  })
  } else if (LicensePlateNumberLen == || LicensePlateNumber == '' || LicensePlateNumberDelete.slice(, -).length == ){
  this.setData({
   licensePlate_provinces_Box: false,
   licensePlate_letter_Box: true,
   licensePlate_digital_Box: true,
  })
  }
  this.setData({
   LicensePlateNumber: NewLicensePlateNumber
  })
 },
 // 清空
 licensePlate_empty: function (e) {
  this.setData({
  LicensePlateNumber:'',
  licensePlate_provinces_Box: false,
  licensePlate_letter_Box: true,
  licensePlate_digital_Box: true,
  })
 },
 // 关闭模拟键盘
 licensePlate_close:function(){
  this.setData({
  licensePlateShowHidden: true
  })
 },
 // 点击获取省份
 licensePlate_provinces: function (e) {
  this.setData({
  LicensePlateNumber: e.target.dataset.licenseplateprovinces,
  licensePlate_letter_Box: false,
  licensePlate_digital_Box: true,
  })
  console.log(e.target.dataset.licenseplateprovinces)
 },
 // 点击获取字母
 licensePlate_letter: function (e) {
  var LicensePlateNumber = this.data.LicensePlateNumber;
  var LicensePlateNumberLen = LicensePlateNumber.length;
  if (LicensePlateNumberLen != ) {
  this.setData({
   LicensePlateNumber: LicensePlateNumber + e.target.dataset.licenseplateprovinces
  })
  console.log(e.target.dataset.licenseplateprovinces)
  } else {
  wx.showToast({
   title: '车牌号码最多不能超过位',
   icon: 'none',
   duration: ,
  })
  }
 },
 // 点击获取数字
 licensePlate_digital: function (e) {
  var LicensePlateNumber = this.data.LicensePlateNumber;
  var LicensePlateNumberLen = LicensePlateNumber.length;
  if (LicensePlateNumberLen != ){
  this.setData({
   LicensePlateNumber: LicensePlateNumber + e.target.dataset.licenseplateprovinces
  })
  console.log(e.target.dataset.licenseplateprovinces)
  }else{
  wx.showToast({
   title: '车牌号码最多不能超过位',
   icon:'none',
   duration:,
  })
  }
 },
 })

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