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refactor: 架构升级

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小莫唐尼
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# uni.chooseLocation - 选择位置示例
## 官方文档
参考官方文档:https://doc.dcloud.net.cn/uni-app-x/api/location/choose-location.html#chooselocation
## 概述
`uni.chooseLocation` 用于打开地图选择位置。
## 基础用法
```javascript
uni.chooseLocation({
success: (res) => {
console.log('选择的位置', res.name, res.address)
}
})
```
## 完整示例
### 示例 1: 基本选择位置
```javascript
uni.chooseLocation({
success: (res) => {
console.log('位置名称', res.name)
console.log('详细地址', res.address)
console.log('纬度', res.latitude)
console.log('经度', res.longitude)
},
fail: (err) => {
console.error('选择失败', err)
}
})
```
### 示例 2: 在页面中使用
```vue
<template>
<view class="container">
<button @click="chooseLocation">选择位置</button>
<view v-if="location" class="location-info">
<text>位置{{ location.name }}</text>
<text>地址{{ location.address }}</text>
<text>坐标{{ location.latitude }}, {{ location.longitude }}</text>
</view>
</view>
</template>
<script>
export default {
data() {
return {
location: null
}
},
methods: {
chooseLocation() {
uni.chooseLocation({
success: (res) => {
this.location = res
uni.showToast({
title: '选择成功',
icon: 'success'
})
},
fail: (err) => {
if (err.errMsg.includes('auth deny')) {
uni.showModal({
title: '提示',
content: '需要位置权限才能选择位置',
success: (modalRes) => {
if (modalRes.confirm) {
uni.openSetting()
}
}
})
} else {
uni.showToast({
title: '选择失败',
icon: 'none'
})
}
}
})
}
}
}
</script>
```
### 示例 3: 选择收货地址
```vue
<template>
<view class="container">
<view class="address-item" @click="chooseAddress">
<view v-if="address">
<text class="address-name">{{ address.name }}</text>
<text class="address-detail">{{ address.address }}</text>
</view>
<view v-else>
<text>请选择收货地址</text>
</view>
<text class="arrow">></text>
</view>
</view>
</template>
<script>
export default {
data() {
return {
address: null
}
},
methods: {
chooseAddress() {
uni.chooseLocation({
success: (res) => {
this.address = {
name: res.name,
address: res.address,
latitude: res.latitude,
longitude: res.longitude
}
// 保存地址
uni.setStorageSync('deliveryAddress', this.address)
}
})
}
},
onLoad() {
// 加载保存的地址
const savedAddress = uni.getStorageSync('deliveryAddress')
if (savedAddress) {
this.address = savedAddress
}
}
}
</script>
<style>
.address-item {
display: flex;
justify-content: space-between;
align-items: center;
padding: 20px;
border-bottom: 1px solid #eee;
}
.address-name {
display: block;
font-size: 32rpx;
font-weight: bold;
margin-bottom: 10rpx;
}
.address-detail {
display: block;
font-size: 28rpx;
color: #999;
}
.arrow {
color: #999;
}
</style>
```
### 示例 4: 检查权限
```javascript
function chooseLocationWithPermission() {
// 先检查权限
uni.getSetting({
success: (res) => {
if (res.authSetting['scope.userLocation']) {
// 已授权,直接选择
chooseLocation()
} else {
// 请求授权
uni.authorize({
scope: 'scope.userLocation',
success: () => {
chooseLocation()
},
fail: () => {
uni.showModal({
title: '提示',
content: '需要位置权限才能选择位置',
success: (modalRes) => {
if (modalRes.confirm) {
uni.openSetting()
}
}
})
}
})
}
}
})
}
function chooseLocation() {
uni.chooseLocation({
success: (res) => {
console.log('选择的位置', res)
}
})
}
```
### 示例 5: 在地图上显示选择的位置
```vue
<template>
<view class="container">
<button @click="chooseLocation">选择位置</button>
<map
v-if="location"
:latitude="location.latitude"
:longitude="location.longitude"
:markers="markers"
class="map"
></map>
</view>
</template>
<script>
export default {
data() {
return {
location: null,
markers: []
}
},
methods: {
chooseLocation() {
uni.chooseLocation({
success: (res) => {
this.location = res
this.markers = [{
id: 1,
latitude: res.latitude,
longitude: res.longitude,
title: res.name
}]
}
})
}
}
}
</script>
<style>
.map {
width: 100%;
height: 500px;
margin-top: 20px;
}
</style>
```
## 返回值
| 参数名 | 类型 | 说明 |
|--------|------|------|
| name | String | 位置名称 |
| address | String | 详细地址 |
| latitude | Number | 纬度 |
| longitude | Number | 经度 |
## 平台兼容性
| 平台 | 支持情况 |
|------|---------|
| H5 | ❌ |
| 微信小程序 | ✅ |
| 支付宝小程序 | ✅ |
| 百度小程序 | ✅ |
| 字节跳动小程序 | ✅ |
| QQ 小程序 | ✅ |
| 快手小程序 | ✅ |
| App | ✅ |
| 快应用 | ✅ |
## 注意事项
1. 需要用户授权位置权限
2. H5 平台不支持此 API
3. 选择的位置包含名称、地址和坐标信息
4. 建议在需要时再请求权限
## 参考资源
- **官方文档**: https://doc.dcloud.net.cn/uni-app-x/api/location/choose-location.html#chooselocation
- **获取位置**: https://doc.dcloud.net.cn/uni-app-x/api/location/location.html#getlocation
- **打开地图**: https://doc.dcloud.net.cn/uni-app-x/api/location/open-location.html#openlocation