Exploring the capabilities of utilizing Leaflet in conjunction with Ionic2 using typescript

Being a beginner in the world of Ionic2 and Angular2 using typescript, my goal is to develop a mobile application that can run on both iOS and Android platforms. I have decided to integrate a map into my app, and after some research, I came across Leaflet as a versatile option for switching between GoogleMaps and OSM.

However, my journey hit a roadblock when it came to installation. There are various packages like npm install leaflet, npm install leaflet-map, npm install ui-leaflet, and many more options available.

Furthermore, I am unsure about how to actually include these packages once they are installed. It would be incredibly helpful if someone could provide me with a straightforward Ionic2 app example demonstrating the implementation of a leaflet-map.

angulartypescriptionic-frameworkleafletionic2

Answer №1

Alright, let's get started. Begin by installing leaflet and its typings using npm:

npm install leaflet --save
npm install @types/leaflet --save

Next, import the leaflet library into your Component or wherever you need it:

import 'leaflet';

In your HTML file, create a div with id="map" and set a predefined size (you can use CSS for this):

<div style="height: 180px" id="map"></div>

Since styleUrls: [] may be buggy in Ionic2, make sure to add the leaflet styles directly to your HTML file:

<link rel="stylesheet" href="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="9cf0f9fdfaf0f9e8dcadb2acb2ad">[email protected]</a>/dist/leaflet.css" />

With these preparations done, you can now follow the leaflet tutorial, starting with the following code snippet:

ngOnInit(): void {
   var map = L.map('map')
      .setView([51.505, -0.09], 13);

   L.tileLayer('https://api.tiles.mapbox.com/v4/mapbox.streets-basic/{z}/{x}/{y}.png?access_token={accessToken}', {
      attribution: 'Map data &copy; <a href="http://openstreetmap.org">OpenStreetMap</a> contributors, <a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>, Imagery © <a href="http://mapbox.com">Mapbox</a>',
      maxZoom: 18,
      accessToken: 'xxx'
    }).addTo(this.map);

}

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