微信小程序----map组件实现（高德地图API实现wx.chooseLocation（OBJECT））

声明

bug：页面搜索返回的列表在真机测试是会出现不显示问题？
造成原因：在小程序map组件的同一区域，map组件的视图层比普通的文本视图层要高，所以在真机会遮挡！
解决办法：将该文本视图采用cover-view，放在map中。
感谢：感谢Lrj_estranged指出问题！

效果图

这里写图片描述

实现原理

通过高德地图的微信小程序开发API（getInputtips），实现关键词获取对应提示列表，同时返回location。

WXML

<view class="map-inputtips-input">
  <input bindinput="bindInput" placeholder="搜索" focus="true" />
</view>

<view class="map_container">
  <map class="map" latitude='{{latitude}}' longitude='{{longitude}}' markers='{{markers}}'>
    <cover-view class="map-search-list {{isShow ? '' : 'map-hide'}}">
      <cover-view bindtouchstart="bindSearch" wx:key="searchId" data-keywords="{{item.name}}" data-location="{{item.location}}" class="map-box" wx:for="{{tips}}">
        {{item.name}}
      </cover-view>
    </cover-view>
  </map>
</view>

WXSS

.map-inputtips-input{
  height: 80rpx;
  line-height: 80rpx;
  width: 100%;
  box-sizing: border-box;
  font-size: 30rpx;
  padding: 0 10px;
  background-color: #fff;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  border-bottom:1px solid #c3c3c3;
}
.map-inputtips-input input{
  border: 1px solid #ddd;
  border-radius: 5px;
  height: 60rpx;
  line-height: 60rpx;
  width: 100%;
  box-sizing: border-box;
  padding: 0 5px;
  margin-top: 10rpx;
}
.map-box{
  margin: 0 10px;
  border-bottom:1px solid #c3c3c3;
  height: 80rpx;
  line-height: 80rpx;
}
.map-box:last-child{border: none;}
.map-search-list{
  position: fixed;
  top: 80rpx;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: #fff;
}

JS

const app = getApp();
const amap = app.data.amap;
const key = app.data.key;

Page({
  data: {
    isShow: false,
    tips: {},
    longitude: '',
    latitude: '',
    markers: []
  },
  onLoad() {
    var _this = this;
    wx.getLocation({
      success: function(res) {
        if (res && res.longitude){
          _this.setData({
            longitude: res.longitude,
            latitude: res.latitude,
            markers:[{
              id:0,
              longitude: res.longitude,
              latitude: res.latitude,
              iconPath: '../../src/images/ding.png',
              width:32,
              height:32
            }]
          })
        }
      }
    })
  },
  bindInput: function (e) {
    var _this = this;
    var keywords = e.detail.value;
    var myAmap = new amap.AMapWX({ key: key });
    myAmap.getInputtips({
      keywords: keywords,
      location: '',
      success: function (res) {
        if (res && res.tips) {
          _this.setData({
            isShow: true,
            tips: res.tips
          });
        }
      }
    })
  },
  bindSearch: function (e) {
    var keywords = e.target.dataset.keywords;
    var location = e.target.dataset.location.split(',');

    this.setData({
      isShow: false,
      longitude: location[0],
      latitude: location[1],
      markers: [{
        id: 0,
        longitude: location[0],
        latitude: location[1],
        iconPath: '../../src/images/ding.png',
        width: 32,
        height: 32,
        anchor: { x: .5, y: 1 },
        label: {
          content: keywords,
          color: 'blue',
          fontSize: 12,
          borderRadius: 5,
          bgColor: '#fff',
          padding: 3,
          x: 0,
          y: -50,
          textAlign: 'center'
        }
      }]
    })
  }
})