How to implement travel navigation and route planning in uniapp

How to implement travel navigation and route planning in uniapp

With the improvement of people’s living standards, travel navigation and route planning have become indispensable in modern society a part of. Implementing travel navigation and route planning in uniapp is not complicated. This article will introduce the specific steps to implement these functions through uniapp and related plug-ins, and provide code examples.

1. Introduce map components and navigation plug-ins
First, we need to introduce map components and navigation plug-ins into uniapp. The current mainstream navigation plug-ins include Baidu Maps and Amap. In uniapp, we can use the two plug-ins uni-app-baidumap and uni-app-amap to implement navigation and route planning functions.

1.1 Introducing the Baidu map plug-in
In the root directory of the uniapp project, install the uni-app-baidumap plug-in through npm:

npm install uni-app-baidumap

After that, in the main.js file in the root directory Introduce the plug-in:

import baiduMap from 'uni-app-baidumap';
Vue.use(baiduMap, {
    ak: 'your baidu map ak'
});

Among them, 'your baidu map ak' needs to be replaced with your own AK (key) of Baidu Map API. In this way, the Baidu map plug-in was successfully introduced.

1.2 Introducing the Gaode map plug-in
In the root directory of the uniapp project, install the uni-app-amap plug-in through npm:

npm install uni-app-amap

After that, in the main.js in the root directory Introducing the plug-in in the file:

import amap from 'uni-app-amap';
Vue.use(amap);

This way the Amap plug-in is successfully introduced.

2. Implement location positioning and map display
Under the premise that the map plug-in has been introduced, we can display the map and achieve position positioning through the map component provided by uniapp.

2.1 Introduce the map component on the page
In the .vue file of the page, introduce the map component and set the related properties:

<template>
  <view class="map">
    <map :longitude="longitude" :latitude="latitude" :scale="scale" style="width: 100%; height: 100%"></map>
  </view>
</template>

Among them, longitude and latitude represent the longitude and latitude of the map respectively. Latitude, scale represents the zoom level of the map.

2.2 Get the current location and render the map
In the <script> tag of the page, get the current location by calling the API provided by uniapp, and pass the location information to the map component: </script>

export default {
  data() {
    return {
      longitude: '',
      latitude: '',
      scale: 14
    }
  },
  onShow() {
    uni.getLocation({
      type: 'gcj02',
      success: (res) => {
        this.longitude = res.longitude;
        this.latitude = res.latitude;
      }
    })
  }
}

This way you can display the map in uniapp and locate the current location.

3. Implement travel navigation and route planning
After displaying the map and obtaining the current location, we can implement travel navigation and route planning functions by calling the API provided by the map plug-in.

3.1 Implement navigation function
In the .vue file, add a navigation button and trigger the navigation function by clicking the button:

<template>
  <view class="map">
    <map :longitude="longitude" :latitude="latitude" :scale="scale" style="width: 100%; height: 100%"></map>
    <button @click="navigate">导航</button>
  </view>
</template>

In the <script> tag, define the navigate method, And use the navigation API provided by uniapp to implement the navigation function: </script>

export default {
  methods: {
    navigate() {
      uni.openLocation({
        longitude: '目标地点的经度',
        latitude: '目标地点的纬度',
        scale: 14,
        name: '目标地点名称',
        address: '目标地点地址'
      })
    }
  }
}

Among them, 'longitude of the target location' and 'latitude of the target location' need to be replaced with the location information of the navigation destination, 'target location name' and ' The destination location address' needs to be replaced with relevant information of the navigation destination.

3.2 Implement route planning function
In the .vue file, add a route planning button and trigger the route planning function by clicking the button:

<template>
  <view class="map">
    <map :longitude="longitude" :latitude="latitude" :scale="scale" style="width: 100%; height: 100%"></map>
    <button @click="routePlan">路线规划</button>
  </view>
</template>

In the <script> tag, define routePlan method, and use the route planning API provided by the map plug-in to implement the route planning function: </script>

export default {
  methods: {
    routePlan() {
      uni.navigateTo({
        url: '/pages/routePlan/routePlan'
      })
    }
  }
}

Among them, '/pages/routePlan/routePlan' needs to be replaced with the path of your route planning page.

4. Summary
By introducing map plug-ins, displaying maps and obtaining positioning information, we can implement travel navigation and route planning functions in uniapp. The above code examples use Baidu Map and Amap plug-ins, but the specific usage of each plug-in may be different. Please operate according to the plug-in documentation. The implementation of these functions not only provides users with a better travel experience, but also increases the practicality and attractiveness of applications for developers. I hope this article will be helpful to your uniapp development.

The above is the detailed content of How to implement travel navigation and route planning in uniapp. For more information, please follow other related articles on the PHP Chinese website!