uniapp 小程序使用高德地图偏移位置点击按钮快速定位到当前位置
时间: 2024-12-12 19:31:54 浏览: 218
UniApp小程序中,使用高德地图实现偏移位置并点击按钮快速定位到用户当前位置,可以按照以下步骤操作:
1. 首先,在UniApp项目中引入高德地图组件,需要在`main.js`文件中注册依赖库:
```javascript
import Map from '@dcloudio/map'
Vue.use(Map)
```
2. 创建地图实例并在页面上展示:
```html
<map :center="currentLocation" :zoom="15"></map>
```
这里假设`currentLocation`是一个默认初始位置,你可以初始化为城市中心或者其他默认值。
3. 定义获取用户当前位置的函数,通常使用uni.getLocation API:
```javascript
data() {
return {
currentLocation: [0, 0], // 初始化坐标
showLocationBtn: true,
}
},
methods: {
getLocationSuccess(info) {
const { latitude, longitude } = info.location;
this.currentLocation = [longitude, latitude];
},
toggleLocationButton() {
this.showLocationBtn = !this.showLocationBtn;
},
},
onReady() {
this.getLocation(); // 初始化定位请求
},
methods: {
getLocation() {
uni.getLocation({
type: 'gcj02', // 使用GPS定位,默认为wgs84
success: this.getLocationSuccess,
error: console.error.bind(console),
});
},
}
```
当用户点击按钮时,`toggleLocationButton`方法会被调用,控制地图显示定位按钮的状态。当按钮可见(`showLocationBtn`为true),点击按钮会触发新的定位请求。
4. 添加点击事件监听,用于点击定位按钮:
```html
<button @tap="getLocation" v-if="showLocationBtn">点击定位</button>
```
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