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refactor: 架构升级
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# uni.openLocation - 打开地图查看位置示例
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## 官方文档
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参考官方文档:https://uniapp.dcloud.net.cn/api/location/open-location.html#openlocation
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## 概述
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`uni.openLocation` 用于使用地图查看位置,可以打开系统地图应用显示指定位置。
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## 基础用法
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```javascript
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uni.openLocation({
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latitude: 39.908823,
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longitude: 116.397470,
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name: '天安门',
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address: '北京市东城区'
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})
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```
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## 完整示例
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### 示例 1: 打开地图查看位置
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```javascript
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uni.openLocation({
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latitude: 39.908823,
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longitude: 116.397470,
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name: '天安门',
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address: '北京市东城区天安门广场',
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scale: 18,
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success: () => {
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console.log('打开地图成功')
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},
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fail: (err) => {
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console.error('打开地图失败', err)
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}
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})
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```
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### 示例 2: 先获取位置再打开地图
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```javascript
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// 先获取当前位置
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uni.getLocation({
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type: 'gcj02',
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success: (locationRes) => {
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// 打开地图显示当前位置
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uni.openLocation({
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latitude: locationRes.latitude,
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longitude: locationRes.longitude,
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name: '我的位置',
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address: locationRes.address || '当前位置'
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})
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}
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})
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```
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### 示例 3: 在页面中使用
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```vue
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<template>
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<view class="container">
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<button @click="openCurrentLocation">查看当前位置</button>
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<button @click="openTargetLocation">查看目标位置</button>
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</view>
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</template>
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<script>
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export default {
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data() {
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return {
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targetLocation: {
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latitude: 39.908823,
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longitude: 116.397470,
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name: '天安门',
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address: '北京市东城区天安门广场'
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}
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}
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},
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methods: {
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openCurrentLocation() {
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uni.getLocation({
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type: 'gcj02',
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success: (res) => {
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uni.openLocation({
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latitude: res.latitude,
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longitude: res.longitude,
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name: '我的位置',
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address: res.address || '当前位置'
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})
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},
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fail: () => {
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uni.showToast({
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title: '获取位置失败',
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icon: 'none'
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})
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}
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})
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},
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openTargetLocation() {
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uni.openLocation({
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latitude: this.targetLocation.latitude,
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longitude: this.targetLocation.longitude,
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name: this.targetLocation.name,
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address: this.targetLocation.address
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})
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}
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}
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}
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</script>
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```
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### 示例 4: 查看商家位置
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```javascript
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function openStoreLocation(store) {
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uni.openLocation({
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latitude: store.latitude,
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longitude: store.longitude,
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name: store.name,
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address: store.address,
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scale: 18,
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success: () => {
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console.log('打开商家位置成功')
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}
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})
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}
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// 使用
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const store = {
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name: '星巴克咖啡',
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address: '北京市朝阳区xxx路xxx号',
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latitude: 39.908823,
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longitude: 116.397470
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}
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openStoreLocation(store)
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```
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### 示例 5: 导航到位置
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```javascript
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// 在某些平台上,openLocation 可以用于导航
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uni.openLocation({
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latitude: 39.908823,
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longitude: 116.397470,
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name: '目的地',
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address: '北京市东城区',
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scale: 18
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})
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```
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## 参数说明
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| 参数名 | 类型 | 必填 | 说明 |
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|--------|------|------|------|
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| latitude | Number | 是 | 纬度,范围为 -90~90,负数表示南纬 |
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| longitude | Number | 是 | 经度,范围为 -180~180,负数表示西经 |
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| scale | Number | 否 | 缩放比例,范围 5~18,默认为 18 |
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| name | String | 否 | 位置名称 |
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| address | String | 否 | 地址的详细说明 |
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## 平台兼容性
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| 平台 | 支持情况 |
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|------|---------|
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| H5 | ✅ |
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| 微信小程序 | ✅ |
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| 支付宝小程序 | ✅ |
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| 百度小程序 | ✅ |
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| 字节跳动小程序 | ✅ |
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| QQ 小程序 | ✅ |
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| 快手小程序 | ✅ |
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| App | ✅ |
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| 快应用 | ✅ |
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## 注意事项
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1. 需要使用 `gcj02` 类型的坐标(通过 `uni.getLocation` 获取)
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2. `scale` 值越大,地图显示越详细
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3. `name` 和 `address` 用于在地图上显示位置信息
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4. 不同平台打开的地图应用可能不同
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## 参考资源
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- **官方文档**: https://uniapp.dcloud.net.cn/api/location/open-location.html#openlocation
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- **获取位置**: https://uniapp.dcloud.net.cn/api/location/location.html#getlocation
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