如何在MapBox iOS / Android SDK中使用离线样式定义或地图图块？

Question

I want to make offline map applications using mapbox iOS/Android SDK.

But, I load style from local filesystem, like below: (Sorry, I'm Xamarin user, so write in c#)

var bundlePath = NSBundle.MainBundle.BundlePath; 
var filePath = Path.Combine(bundlePath, "gsimaps.json"); 
var styleURL = NSUrl.CreateFileUrl (filePath, null);
var mapView = new MapView (Bounds, styleURL);

Then error shows:

[ERROR] {Map}[Setup]: loading style failed: response class is not NSHTTPURLResponse

Are there any way to load styles from local data? From file, from DB, from memory, any means are OK, I want to know the way to use local data.

And also, are there any ways to use local raster tile in MapBox SDK? (From file, DB, or memory..)

Answer 1

In Android,

First, declare a map_style.json inside assets folder

Then in Java code

mapView.setStyleUrl("asset://map_style.json");

Answer 2

您应该看一下我的github项目（适用于Android / iOS / UWP的标题），但这些瓷砖的更新存在问题->瓷砖的双重更新。

Answer 3

MapBox have a plan to implement local interface:

https://github.com/mapbox/mapbox-gl-native/issues/7471