Leaflet4j with Android Studio

[markus...@gmail.com]

Hi,

I'm interested to integrate Leaflet4J (https://github.com/dukescript/leaflet4j) into a Android Studio Project.

This is what I get so far in my "MainActivity":

leaflet = (WebView)findViewById(R.id.leaflet);
leaflet.clearCache(true);
leaflet.getSettings().setJavaScriptEnabled(true);
leaflet.setInitialScale(200);
leaflet.loadUrl("file:///android_asset/leaflet.html");

// Create a map zoomed to Linz.
MapOptions mapOptions = new MapOptions()
.setCenter(new LatLng(48.336614, 14.319305))
.setZoom(15);
final Map map = new Map("map", mapOptions);

In the HTML there is a div container, which is called "map":

<div id="map"></div>

Well, I guess there is a huge misunderstanding from myside as the compiler shows:

java.lang.RuntimeException: Unable to start activity ComponentInfo{de.test.firstmap2/de.test.firstmap2.MainActivity}: java.lang.IllegalStateException: No presenter active. Use BrwsrCtx.execute!

Would be great, if you could point me into the right direction.

Many thanks in advance

Markus

[Jaroslav Tulach]

To use DukeScript you have to initialize the WebView with the right presenter. Why don't you start with the Maven archetype https://dukescript.com/update/2015/02/05/New-Version-of-Dukescript.html and only when it is working you try to copy the sources to a Gradle project?

-jt

14. 11. 2015 v 0:02, markus...@gmail.com:

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[markus...@gmail.com]

Hi,

thank you so much for your response. Well, I have tried some hours to just show a simple map in Android Studio. Nope, it seems too hard for me.... No success. I really have no idea how to recover.

It ended up in something like this:

.....Unable to open asset URL: file:///android_asset/lib/net.java.html.boot.fx-1.1.js

I couldn't find it: (https://github.com/dukescript/leaflet4j)

I guess it would be very helpful (and also for a lot of other developers) to have a simple gradle studio project which shows the integration. I guess this would boost the usage of Leaflet in Android a lot....

I haven't found anything like this...

Many thanks again....I love Leaflet a lot as I used it in many other (web-)projects , but I guess I have to look for the Google Maps Integration now...in Android Studio it seems to be very smooth... ;-(

Markus