Posted in Javascript onJanuary 23, 2019
本文实例讲述了微信小程序map组件结合高德地图API实现wx.chooseLocation功能。分享给大家供大家参考,具体如下:
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
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' } }] }) } })
总结
1. 输入框事件获取关键字,通过关键字获取展示列表;
2. 列表选择事件,获取对应的location,并通过map组件的 markers 属性标记该坐标。
希望本文所述对大家微信小程序开发有所帮助。
微信小程序map组件结合高德地图API实现wx.chooseLocation功能示例
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Rattenking声明:登载此文出于传递更多信息之目的,并不意味着赞同其观点或证实其描述。
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