最近项目中有需要实现车牌号的输入，为了提升用户体验，自己写了一个键盘

效果图

车牌第一位的输入键盘：

车牌第二位的输入键盘：

车牌后面几位的输入键盘：

整体效果示例

源代码

这里使用的是微信小程序的自定义组件

wxml文件

<view class='ln_plate_container' hidden="{{!isShow}}">
  <view class="ln_plate_header">
    <view class="ln_plate_close" bindtap="_closlePlateKeybord">关闭</view>
  </view>
  <view class="ln_plate_key">
    <view class="ln_plate_key_f" hidden="{{keyBoardInputIndex != 0}}">
      <view class="ln_plate_word_1">
        <view class="ln_plate_word_item" wx:for="{{k_word_1}}" bindtap="_clickWord" data-value="{{item}}" wx:key="car_num" wx:for-item="item">
          {{item}}
        </view>
      </view>
      <view class="ln_plate_word_2">
        <view class="ln_plate_word_item" wx:for="{{k_word_2}}" bindtap="_clickWord" data-value="{{item}}" wx:key="car_num" wx:for-item="item">
          {{item}}
        </view>
      </view>
      <view class="ln_plate_word_3">
        <view class="ln_plate_word_item" wx:for="{{k_word_3}}" bindtap="_clickWord" data-value="{{item}}" wx:key="car_num" wx:for-item="item">
          {{item}}
        </view>
      </view>
      <view class="ln_plate_word_4">
        <view class="ln_plate_word_item" wx:for="{{k_word_4}}" bindtap="_clickWord" data-value="{{item}}" wx:key="car_num" wx:for-item="item">
          {{item}}
        </view>
      </view>
    </view>
    <view  class="ln_plate_key_s" hidden="{{keyBoardInputIndex == 0}}">
      <view class="ln_plate_word_5">
        <view class="ln_plate_word_item" wx:for="{{k_word_5}}" bindtap="_clickWord"  data-value="{{item}}" wx:key="car_num" wx:for-item="item"  wx:if="{{keyBoardInputIndex != 1}}">
          {{item}}
        </view>
        <view class="ln_plate_word_item disable'" wx:for="{{k_word_5}}" wx:key="car_num" wx:for-item="item" wx:if="{{keyBoardInputIndex == 1}}">
          {{item}}
        </view>
      </view>
      <view class="ln_plate_word_6">
        <view class="ln_plate_word_item" wx:for="{{k_word_6}}"  bindtap="_clickWord"  data-value="{{item}}" wx:key="car_num" wx:for-item="item">
          {{item}}
        </view>
      </view>
      <view class="ln_plate_word_7">
        <view class="ln_plate_word_item" wx:for="{{k_word_7}}"  bindtap="_clickWord"  data-value="{{item}}" wx:key="car_num" wx:for-item="item">
          {{item}}
        </view>
      </view>
      <view class="ln_plate_word_8">
        <view class="ln_plate_word_item" wx:for="{{k_word_8}}" bindtap="_clickWord"  data-value="{{item}}" wx:key="car_num" wx:for-item="item" wx:if="{{!((keyBoardInputIndex != 7) && (index > 3))}}">
          {{item}}
        </view>
        <view class="ln_plate_word_item disable" wx:for="{{k_word_8}}" wx:if="{{(keyBoardInputIndex != 7) && (index > 3)}}" wx:key="car_num" wx:for-item="item">
          {{item}}
        </view>
      </view>
    </view>
    <view class="ln_plate_key_del" bindtap="deleteWord">
      <image class="ln_plate_key_img" src="./img/plate_icon_delete.png"></image>
    </view>
  </view>
</view>

wxss

.ln_plate_container {
  background-color: #FFFFFF;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 540rpx;
}

/* 关闭栏 */

.ln_plate_header {
  height: 76rpx;
  border-top: 1rpx solid #D9D9D9;
  position: relative;
}

.ln_plate_close {
  height: 100%;
  width: 120rpx;
  text-align: center;
  line-height: 76rpx;
  position: absolute;
  right: 0;
  font-size:30rpx;
  font-family:PingFangSC-Regular,PingFang SC;
}

/* 键盘 */

.ln_plate_key {
  height: 464rpx;
  background-color: rgba(221,222,226,1);
  overflow: hidden;
  position: relative;
  padding: 6rpx 0;
}

.ln_plate_word_1,.ln_plate_word_2,.ln_plate_word_3,.ln_plate_word_4 {
  display: flex;
  justify-content: space-between;
  margin-top: 20rpx;
  padding: 0 10rpx;
}

.ln_plate_word_2 {
  padding: 0 47rpx;
}

.ln_plate_word_3 {
  padding: 0 121rpx;
}

.ln_plate_word_4 {
  padding: 0 193rpx;
}

.ln_plate_word_5,.ln_plate_word_6,.ln_plate_word_7,.ln_plate_word_8 {
  display: flex;
  justify-content: space-between;
  margin-top: 20rpx;
  padding: 0 10rpx;
}

.ln_plate_word_8 {
  padding: 0 230rpx 0 10rpx;
}

.ln_plate_word_item {
  width:66rpx;
  height:86rpx;
  background:rgba(255,255,255,1);
  box-shadow:0rpx 2rpx 5rpx 0rpx rgba(0,0,0,0.12);
  border-radius:8rpx;
  text-align: center;
  line-height: 86rpx;
}

.disable {
  background:rgba(236,236,236,1);
}

.ln_plate_key_del {
  width:138rpx;
  height:86rpx;
  background:rgba(255,255,255,1);
  box-shadow:0rpx 2rpx 5rpx 0rpx rgba(0,0,0,0.12);
  border-radius:8rpx;
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  right: 8rpx;
  bottom: 46rpx;
}

.ln_plate_key_img{
  width: 51rpx;
  height: 37rpx;
}

js文件

Component({
 
  properties: {
    isShow: {
      type: Boolean,
      value: false,
    },
    keyBoardInputIndex: {
      type: Number,
      value: 0,
    }
  },

  data: {
    k_word_1: ["京","沪","粤","津","冀","晋","蒙","辽","吉","黑"],
    k_word_2: ["苏","浙","皖","闽","赣","鲁","豫","鄂","湘"],
    k_word_3: ["桂","琼","渝","川","贵","云","藏"],
    k_word_4: ["陕","甘","青","宁","新"],
    k_word_5: ["1","2","3","4","5","6","7","8","9","0"],
    k_word_6: ["A","B","C","D","E","F","G","H","J","K"],
    k_word_7: ["L","M","N","P","Q","R","S","T","U","V"],
    k_word_8: ["W","X","Y","Z","学","警","挂"]
  },

  methods: {

    _clickWord:function (e) {
      var word = {word:e.currentTarget.dataset.value}
      this.triggerEvent("clickWord",word)
    },
    deleteWord:function () {
      this.triggerEvent("deleteWord")
    }
  }
})

json文件

{
  "component": true
}

使用方式

json文件配置：在需要引用的页面json文件中配置,其中的plate名字可自定义，路径填写实际路径

{
  "usingComponents": {
    "plate" : "/components/plate/plate"
  }
}

wxml文件引入：plate标签是json文件自定义的对应名字

<plate id='plate'
    isShow="{{isShow}}"
    keyBoardInputIndex="{{current_index}}"
    bind:deleteWord="_deleteWord"
    bind:clickWord="_clickWord">
</plate>

属性

事件

以上内容供学习交流，如有不足之处，请指正