如何使用KML或geojson在列表视图中显示？

Question

I have been working with osmbonus library and osmdroid library tutorial. I have download the KML and json file in my sd card and now I want to list all the information in list view.

like:
name = xyz school
amenity = school
addr:street = abc
opening_hours : Su-Fr 22:00-04:00

The kml file is in format:

<Placemark id="mId">
<Point>
<coordinates>85.0960383,27.6345759,0.0 </coordinates>
</Point>
<ExtendedData>
<Data name="addr:postcode"><value>44100</value></Data>
<Data name="name:en"><value>Palung Modern English Secondary School</value></Data>
<Data name="amenity"><value>school</value></Data>
<Data name="addr:street"><value>Tribhuvan Highway</value></Data>
<Data name="opening_hours"><value>Su-Fr 22:00-04:00</value></Data>
</ExtendedData>
</Placemark>

I have use the code like this to store the file

//file at storage/sdcard0/kml
            mKmlDocument.saveAsKML(mKmlDocument.getDefaultPathForAndroid("my_route.kml"));
// Loading and saving of GeoJSON content
            mKmlDocument.saveAsGeoJSON(mKmlDocument.getDefaultPathForAndroid("my_route.json"));

Answer 1

Assuming you know Android ListView mechanisms:

Access to the placemark extended data. Your placemark is the unique feature inside your KML document, so:

KmlPlacemark placemark = (KmlPlacemark)mKmlDocument.mKmlRoot.mItems.get(0);
HashMap<String, String> extendedData = placemark.mExtendedData;

Then parse its extendedData (see KmlFeature.getExtendedDataAsText source code if you need an example), and populate your ListView with that.