微信小程序如何实现车牌键盘

这篇文章主要介绍“微信小程序如何实现车牌键盘”，在日常操作中，相信很多人在微信小程序如何实现车牌键盘问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”微信小程序如何实现车牌键盘”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！

一、效果图

二、代码

plateNumKeyboard.wxml

<view class="pages">
  <view class="box">
    <view class='box-top'>
      <text>请输入车牌号:</text>
    </view>
 
    <view class="plate-input-body">
      <view class="plate-input-content">
        <view class="{{inputOnFocusIndex=='0'?'plate-nums-foc':'plate-nums-first'}}">
          <text bindtap="inputClick" class="plate-num-text" data-id="0">{{inputPlates.index0}}</text>
        </view>
        <view class="{{inputOnFocusIndex=='1'?'plate-nums-foc':'plate-nums-first'}}">
          <text bindtap="inputClick" class="plate-num-text" data-id="1">{{inputPlates.index1}}</text>
        </view>
        <view class="point-box">
          <image class="point-img" src="../../images/point.png"></image>
        </view>
        <view class="{{inputOnFocusIndex=='2'?'plate-nums-foc':'plate-nums-first'}}">
          <text bindtap="inputClick" class="plate-num-text" data-id="2">{{inputPlates.index2}}</text>
        </view>
        <view class="{{inputOnFocusIndex=='3'?'plate-nums-foc':'plate-nums-first'}}">
          <text bindtap="inputClick" class="plate-num-text" data-id="3">{{inputPlates.index3}}</text>
        </view>
        <view class="{{inputOnFocusIndex=='4'?'plate-nums-foc':'plate-nums-first'}}">
          <text bindtap="inputClick" class="plate-num-text" data-id="4">{{inputPlates.index4}}</text>
        </view>
        <view class="{{inputOnFocusIndex=='5'?'plate-nums-foc':'plate-nums-first'}}">
          <text bindtap="inputClick" class="plate-num-text" data-id="5">{{inputPlates.index5}}</text>
        </view>
        <view class="{{inputOnFocusIndex=='6'?'plate-nums-foc':'plate-nums-first'}}">
          <text bindtap="inputClick" class="plate-num-text" data-id="6">{{inputPlates.index6}}</text>
        </view>
        <view wx:if="{{flag}}" class="plate-nums-first bg1 last" bindtap="showLast">
          +
        </view>
        <view wx:if="{{!flag}}" class="last {{inputOnFocusIndex=='7'?'plate-nums-foc':'plate-nums-first'}}">
          <text bindtap="inputClick" class="plate-num-text" data-id="7">{{inputPlates.index7}}</text>
        </view>
      </view>
    </view>
  </view>
 
 
  <!--键盘-->
  <view class="keyboard" wx:if="{{isKeyboard}}">
    <view class="kb_top">
      <text catchtap="closeKeyBoard" data-index="1"
        >关闭</text>
    </view>
    <view  wx:if="{{!isNumberKB}}">
      <view >
        <view catchtap="tapKeyboard" class="td td_nor" data-index="{{idx}}" data-val="{{itemName}}"
          hoverClass="board_bg" hoverStartTime="0" hoverStayTime="80" wx:if="{{idx<=9}}" wx:for="{{keyboard1}}"
          wx:for-index="idx" wx:for-item="itemName" wx:key="itemName">
          {{itemName}}
        </view>
      </view>
      <view >
        <view catchtap="tapKeyboard" class="td td_nor" data-index="{{idx}}" data-val="{{itemName}}"
          hoverClass="board_bg" hoverStartTime="0" hoverStayTime="80" wx:if="{{idx<=18&&idx>9}}" wx:for="{{keyboard1}}"
          wx:for-index="idx" wx:for-item="itemName" wx:key="itemName">
          {{itemName}}
        </view>
      </view>
      <view >
        <view catchtap="tapKeyboard" class="td td_nor" data-index="{{idx}}" data-val="{{itemName}}"
          hoverClass="board_bg" hoverStartTime="0" hoverStayTime="80" wx:if="{{idx<=25&&idx>18}}" wx:for="{{keyboard1}}"
          wx:for-index="idx" wx:for-item="itemName" wx:key="itemName">
          {{itemName}}
        </view>
      </view>
      <view >
        <view catchtap="tapKeyboard" class="td td_nor" data-index="{{idx}}" data-val="{{itemName}}"
          hoverClass="board_bg" hoverStartTime="0" hoverStayTime="80" wx:if="{{idx>25}}" wx:for="{{keyboard1}}"
          wx:for-index="idx" wx:for-item="itemName" wx:key="itemName">
          {{itemName}}
        </view>
      </view>
      <view bindtap="tapSpecBtn" class="del-first" data-index="0" hoverClass="del-hover" hoverStartTime="0"
        hoverStayTime="80">
        删除
        <!-- <image class="del-img" data-index="0" mode="scaleToFill" src="../../images/del.png"></image> -->
      </view>
    </view>
    <view  wx:if="{{isNumberKB}}">
      <view >
        <view class="td td_num board_bg" wx:if="{{!tapNum&&idx<=9}}" wx:for="{{keyboardNumber}}" wx:for-index="idx"
          wx:for-item="itemName" wx:key="itemName">
          {{itemName}}
        </view>
      </view>
      <view >
        <view catchtap="tapKeyboard" class="td td_num" data-index="{{idx}}" data-val="{{itemName}}"
          hoverClass="board_bg" hoverStartTime="0" hoverStayTime="80" wx:if="{{tapNum&&idx<=9}}"
          wx:for="{{keyboardNumber}}" wx:for-index="idx" wx:for-item="itemName" wx:key="itemName">
          {{itemName}}
        </view>
      </view>
      <view >
        <view catchtap="tapKeyboard" class="td td_num" data-index="{{idx}}" data-val="{{itemName}}"
          hoverClass="board_bg" hoverStartTime="0" hoverStayTime="80" wx:if="{{idx>9&&idx<=19}}"
          wx:for="{{keyboardNumber}}" wx:for-index="idx" wx:for-item="itemName" wx:key="itemName">
          {{itemName}}
        </view>
      </view>
      <view >
        <view catchtap="tapKeyboard" class="td td_num" data-index="{{idx}}" data-val="{{itemName}}"
          hoverClass="board_bg" hoverStartTime="0" hoverStayTime="80" wx:if="{{idx>19&&idx<=29}}"
          wx:for="{{keyboardNumber}}" wx:for-index="idx" wx:for-item="itemName" wx:key="itemName">
          {{itemName}}
        </view>
      </view>
      <view >
        <view catchtap="tapKeyboard" class="td td_num" data-index="{{idx}}" data-val="{{itemName}}"
          hoverClass="board_bg" hoverStartTime="0" hoverStayTime="80" wx:if="{{idx>29&&idx<=33}}"
          wx:for="{{keyboardNumber}}" wx:for-index="idx" wx:for-item="itemName" wx:key="itemName">
          {{itemName}}
        </view>
        <view class="td td_num board_bg" wx:if="{{!tapNum&&idx>33}}" wx:for="{{keyboardNumber}}" wx:for-index="idx"
          wx:for-item="itemName" wx:key="itemName">
          {{itemName}}
        </view>
        <view catchtap="tapKeyboard" class="td td_num" data-index="{{idx}}" data-val="{{itemName}}"
          hoverClass="board_bg" hoverStartTime="0" hoverStayTime="80" wx:if="{{tapNum&&idx>33}}"
          wx:for="{{keyboardNumber}}" wx:for-index="idx" wx:for-item="itemName" wx:key="itemName">
          {{itemName}}
        </view>
      </view>
      <view bindtap="tapSpecBtn" class="del-first" data-index="0" hoverClass="del-hover" hoverStartTime="0"
        hoverStayTime="80">
        删除
        <!-- <image class="del-img" data-index="0" mode="scaleToFill" src="../../images/del.png"></image> -->
      </view>
    </view>
  </view>
</view>

plateNumKeyboard.js

Page({
  data: {
    isKeyboard: 1,
    isNumberKB: !1,
    tapNum: !1,
    disableKey: "1234567890港澳学",
    keyboardNumber: "1234567890ABCDEFGHJKLMNPQRSTUVWXYZ港澳学",
    keyboard1: "京沪粤津冀晋蒙辽吉黑苏浙皖闽赣鲁豫鄂湘桂琼渝川贵云藏陕甘青宁新",
    inputPlates: {
      index0: "",
      index1: "",
      index2: "",
      index3: "",
      index4: "",
      index5: "",
      index6: "",
      index7: ""
    },
    inputOnFocusIndex: "0",
    flag: true
  },
  onLoad: function () {
 
  },
 
  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {
    this.getHistoryList();
  },
 
  getHistoryList: function () {
    let that = this;
    let data = {
      unionid: app.globalData.unionid,
    }
 
    wxRequest({
      url: app.globalData.url + '/car/history/getByOpenId',
      method: 'get',
      header: {
        "Authorization": app.globalData.token,
      },
      data: data,
    })
      .then((res) => {
        let historyList = res.data.data;
        that.setData({
          historyList,
        })
      })
      .catch((err) => {
        console.log(err);
      });
  },
 
  showLast: function () {
    this.setData({
      flag: false,
    })
  },
 
  setText: function (e) {
    let text = e.currentTarget.dataset.text;
 
    if (text.length == 8) {
      this.setData({
        flag: false,
        'inputPlates.index7': text[7],
      })
    } else {
      this.setData({
        flag: true,
        'inputPlates.index7': "",
      })
    }
    this.setData({
      'inputPlates.index0': text[0],
      'inputPlates.index1': text[1],
      'inputPlates.index2': text[2],
      'inputPlates.index3': text[3],
      'inputPlates.index4': text[4],
      'inputPlates.index5': text[5],
      'inputPlates.index6': text[6],
    })
  },
 
  inputClick: function (t) {
    var that = this;
    that.setData({
      inputOnFocusIndex: t.target.dataset.id,
      isKeyboard: !0
    })
    "0" == this.data.inputOnFocusIndex ? that.setData({
      tapNum: !1,
      isNumberKB: !1
    }) : "1" == this.data.inputOnFocusIndex ? that.setData({
      tapNum: !1,
      isNumberKB: !0
    }) : that.setData({
      tapNum: !0,
      isNumberKB: !0
    });
 
  },
 
  //键盘点击事件
  tapKeyboard: function (t) {
    t.target.dataset.index;
    var a = t.target.dataset.val;
 
    switch (this.data.inputOnFocusIndex) {
      case "0":
        this.setData({
          "inputPlates.index0": a,
          inputOnFocusIndex: "1"
        });
        break;
      case "1":
        this.setData({
          "inputPlates.index1": a,
          inputOnFocusIndex: "2"
        });
        break;
 
      case "2":
        this.setData({
          "inputPlates.index2": a,
          inputOnFocusIndex: "3"
        });
        break;
 
      case "3":
        this.setData({
          "inputPlates.index3": a,
          inputOnFocusIndex: "4"
        });
        break;
 
      case "4":
        this.setData({
          "inputPlates.index4": a,
          inputOnFocusIndex: "5"
        });
        break;
 
      case "5":
        this.setData({
          "inputPlates.index5": a,
          inputOnFocusIndex: "6"
        });
        break;
 
      case "6":
        this.setData({
          "inputPlates.index6": a,
          inputOnFocusIndex: "7"
        });
        break;
 
      case "7":
        if (!this.data.flag) {
          this.setData({
            "inputPlates.index7": a,
            inputOnFocusIndex: "7"
          });
        }
    }
 
    if (this.data.inputOnFocusIndex == "0") {
      this.setData({
        isKeyboard: 1,
        isNumberKB: !1,
        tapNum: !1,
      })
    } else {
      this.setData({
        isKeyboard: 1,
        isNumberKB: 1,
        tapNum: 1,
      })
    }
 
 
  },
 
  closeKeyBoard: function () {
    this.setData({
      isKeyboard: false,
    })
  },
  //键盘关闭按钮点击事件
  tapSpecBtn: function () {
    if (this.data.inputOnFocusIndex == "0") {
      this.setData({
        isKeyboard: 1,
        isNumberKB: !1,
        tapNum: !1,
      })
    } else {
      this.setData({
        isKeyboard: 1,
        isNumberKB: 1,
        tapNum: 1,
      })
    }
 
    switch (parseInt(this.data.inputOnFocusIndex)) {
      case 0:
        this.setData({
          "inputPlates.index0": "",
          inputOnFocusIndex: "0",
        });
        break;
 
      case 1:
        if (this.data.inputPlates.index1) {
          this.setData({
            "inputPlates.index1": "",
            inputOnFocusIndex: "1"
          });
        } else {
          this.setData({
            "inputPlates.index0": "",
            "inputPlates.index1": "",
            inputOnFocusIndex: "0",
          });
        }
        break;
 
      case 2:
        if (this.data.inputPlates.index2) {
          this.setData({
            "inputPlates.index2": "",
            inputOnFocusIndex: "2"
          });
        } else {
          this.setData({
            "inputPlates.index1": "",
            "inputPlates.index2": "",
            inputOnFocusIndex: "1"
          });
        }
        break;
 
      case 3:
        if (this.data.inputPlates.index3) {
          this.setData({
            "inputPlates.index3": "",
            inputOnFocusIndex: "3"
          });
        } else {
          this.setData({
            "inputPlates.index2": "",
            "inputPlates.index3": "",
            inputOnFocusIndex: "2"
          });
        }
        break;
 
      case 4:
        if (this.data.inputPlates.index4) {
          this.setData({
            "inputPlates.index4": "",
            inputOnFocusIndex: "4"
          });
        } else {
          this.setData({
            "inputPlates.index3": "",
            "inputPlates.index4": "",
            inputOnFocusIndex: "3"
          });
        }
        break;
 
      case 5:
        if (this.data.inputPlates.index5) {
          this.setData({
            "inputPlates.index5": "",
            inputOnFocusIndex: "5"
          });
        } else {
          this.setData({
            "inputPlates.index4": "",
            "inputPlates.index5": "",
            inputOnFocusIndex: "4"
          });
        }
        break;
 
      case 6:
        if (this.data.inputPlates.index6) {
          this.setData({
            "inputPlates.index6": "",
            inputOnFocusIndex: "6"
          });
        } else {
          this.setData({
            "inputPlates.index5": "",
            "inputPlates.index6": "",
            inputOnFocusIndex: "5"
          });
        }
        break;
 
      case 7:
        if (this.data.inputPlates.index7) {
          this.setData({
            "inputPlates.index7": "",
            inputOnFocusIndex: "7"
          });
        } else {
          this.setData({
            "inputPlates.index6": "",
            "inputPlates.index7": "",
            inputOnFocusIndex: "6",
            flag: true,
          });
        }
    }
 
  },
 
 
})

plateNumKeyboard.wxss

.box {
  width: 690rpx;
  margin: 0 auto;
  margin-top: 24rpx;
  height: 260rpx;
  background-color: rgb(237, 245, 255);
  border: 2rpx solid rgb(230, 241, 255);
  border-radius: 4rpx;
}
 
.box-top {
  width: 650rpx;
  margin: 0 auto;
  height: 100rpx;
  line-height: 100rpx;
  text-align: center;
  color: rgb(70, 145, 255);
  font-weight: bold;
  border-bottom: 4rpx solid rgb(218, 235, 255);
  font-size: 28rpx;
}
 
 
.plate-input-body {
  /*border: 1px solid red;*/
  height: 100rpx;
  margin: 30rpx auto;
  width: 650rpx;
}
 
.plate-input-content {
  display: flex;
  flex-direction: row;
  height: 100rpx;
}
 
 
.plate-nums-foc {
  flex: 1;
  border: 2rpx solid rgb(119, 179, 255);
  margin-right: 10rpx;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: 100%;
  box-sizing: border-box;
  border-radius: 4rpx;
}
 
.plate-nums-first {
  flex: 1;
  border: 2rpx solid #ccc;
  margin-right: 10rpx;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: 100%;
  box-sizing: border-box;
  border-radius: 4rpx;
}
 
.point-box {
  width: 40rpx;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
 
.point-img {
  width: 16rpx;
  height: 16rpx;
}
 
.bg1 {
  background-color: rgb(177, 212, 255);
  justify-content: center;
  color: rgb(55, 145, 255);
  border: 2rpx dashed rgb(119, 179, 255);
}
 
.plate-num-text {
  flex: 1;
  line-height: 100rpx;
  height: 100%;
  box-sizing: border-box;
  border-radius: 4rpx;
  font-size: 40rpx;
  font-weight: normal;
}
 
.last{
  margin-right: 0;
}
 
 
.text {
  margin: 20rpx auto;
  width: 254rpx;
  color: rgb(255, 99, 85);
  font-size: 24rpx;
}
 
.kb_top {
  align-content: relative;
  width: 100%;
  height: 74rpx;
  background: #fff;
  border-top: solid #ebebeb 2rpx;
  border-bottom: 15rpx solid #d7d8dc;
}
 
.keyboard {
  z-index: 9999;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: auto;
  background: #d7d8dc;
  display: flex;
  flex-wrap: wrap;
  border-bottom: 15rpx solid #d7d8dc;
}
 
.td {
  font-family: "微软雅黑";
  flex-grow: 1;
  text-align: center;
  font-size: 34rpx;
  height: 86rpx;
  line-height: 80rpx;
  background: #fff;
  margin: 10rpx 5rpx;
  color: #333;
  border-radius: 10rpx 10rpx 10rpx 10rpx;
  box-shadow: 0rpx 2rpx 0rpx #a9a9a9;
}
 
.td_nor {
  flex: 1 1 6%;
}
 
.td_num {
  flex: 1 1 8%;
}
 
.td_spec {
  flex: 1 1 12%;
}
 
.board_bg {
  box-shadow: 0 0 0 #e5e5e5;
  background: #e5e5e5;
}
 
.del-first {
  position: absolute;
  bottom: 10rpx;
  right: 10rpx;
  width: 137rpx;
  height: 86rpx;
  background-color: #fff;
  box-shadow: 0rpx 2rpx 0rpx #a9a9a9;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10rpx;
  color: rgb(240, 110, 79);
 
}
 
.del-hover {
  position: absolute;
  bottom: 10rpx;
  right: 10rpx;
  width: 137rpx;
  height: 86rpx;
  background-color: #e5e5e5;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10rpx;
  box-shadow: 0 0 0 #e5e5e5;
}
 
.del-img {
  display: block;
  width: 46rpx;
  height: 38rpx;
}

plateNumKeyboard.json

{
  "navigationBarTitleText": "车牌键盘"
}

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