Introduction

Demonstrate pre-cache OpenStreetMap online map service according to the specified range.

Operation effect

Figure: OSM Online Map Cache Operation Effect

Location

Android Studio

• Product package: Product package catalogue\SampleCode\SampleCode_AndroidStudio\AndroidStudioSampleCode\mapprecache

License

Offline license, copy the license file to the "mobile device internal storage\SuperMap\License" folder.

Library

jar
com.supermap.data.jar, com.supermap.mapping.jar
so
libimb2d.so, libgnustl_shared.so, libQt5Core.so, libQt5Gui.so, libQt5Svg.so, libQt5Widgets.so(Note: Starting from version 11.1, the last five so libraries need to be added.)

Key types/members

Control/Class	Method
MapCacheService	startDownload(), stopDownload(), removeDownload()

Basic steps

1. Click the [Start] button to start caching the online map;
2. Click the [Stop] button to stop caching the online map, and the map is cached to the "mobile device internal storage\supermap\precache" folder.
3. Click the [Remove] button to delete the cached local map data.