Wie erstellen Sie KML-Datei in Android?

Scheint es nicht zu sein, eine beliebige KML-Bibliotheken, die gut funktionieren wird mit Android gleich jetzt. Ich habe mit dem Einfache XML Bibliothek zum Parsen der KML-Datei, und funktioniert gut.

Aber, da Sie bereits für den Empfang der Daten in einem vereinfachten format, Sie wäre viel besser dran, unter Verwendung der Google Maps API selbst. Das spart den Aufwand für den Aufbau der KML-Datei, senden Sie es an Google, und dann immer wieder die gerenderte Karte. Das tutorial hier wird Ihnen helfen, begonnen zu erhalten: http://developer.android.com/resources/tutorials/views/hello-mapview.html

public class CreateKmlFileActivity extends FragmentActivity {

    private GoogleMap googleMap;
    private SupportMapFragment supportMapFragment;
    private ArrayList<LatLng> latLngArrayList = new ArrayList<>();
    private ArrayList<LatLng> latLngArrayListLine = new ArrayList<>();
    private Button button, buttonLine;
    private XmlSerializer xmlSerializer;
    private boolean flag = false;
    private Handler handler;
    private Runnable runnable;
    GPSTracker gpsTracker;
    private double lat;
    private double lng;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout_task3);
        init();
        listener();
    }

    private void init() {
        button = (Button) findViewById(R.id.btn_find);
        buttonLine = (Button) findViewById(R.id.btn_line);
        supportMapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
        googleMap = supportMapFragment.getMap();
        gpsTracker = new GPSTracker(this);
        lat = gpsTracker.latitude;
        lng = gpsTracker.longitude;
        handler = new Handler();
        runnable = new Runnable() {
            @Override
            public void run() {
                gpsTracker.getLocation();
                if (lat != gpsTracker.latitude || lng != gpsTracker.longitude) {
                    latLngArrayListLine.add(new LatLng(gpsTracker.latitude, gpsTracker.longitude));
                    lat = gpsTracker.latitude;
                    lng = gpsTracker.longitude;
                }
                handler.postDelayed(runnable, 1000 * 60);
            }
        };
        if (!gpsTracker.getIsGPSTrackingEnabled()) {
            gpsTracker.showSettingsAlert();
        }
        //gpsTracker.latitude
    }

    private void listener() {
        googleMap.setOnMapClickListener(new GoogleMap.OnMapClickListener() {
            @Override
            public void onMapClick(LatLng latLng) {
                if (!flag)
                    latLngArrayList.add(latLng);
                else
                    googleMap.animateCamera(CameraUpdateFactory.newLatLng(latLng));
            }
        });

        buttonLine.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                handler.removeCallbacks(runnable);
                flag = false;
                try {
                    FileOutputStream fileOutputStream = openFileOutput("testLine.kml", Context.MODE_PRIVATE);
                    xmlSerializer = XmlPullParserFactory.newInstance().newSerializer();
                    xmlSerializer.setOutput(fileOutputStream, "UTF-8");
                    xmlSerializer.startDocument(null, null);
                    xmlSerializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true);
                    xmlSerializer.startTag(null, "kml");
                    xmlSerializer.startTag(null, "Document");
                    xmlSerializer.startTag(null, "name");
                    xmlSerializer.text("kmlFile");
                    xmlSerializer.endTag(null, "name");
                    xmlSerializer.startTag(null, "Style");
                    xmlSerializer.attribute(null, "id", "transGreenPoly");
                    xmlSerializer.startTag(null, "LineStyle");
                    xmlSerializer.startTag(null, "width");
                    xmlSerializer.text("1");
                    xmlSerializer.endTag(null, "width");
                    xmlSerializer.startTag(null, "color");
                    xmlSerializer.text("7dff0000");
                    xmlSerializer.endTag(null, "color");
                    xmlSerializer.startTag(null, "colorMode");
                    xmlSerializer.text("random");
                    xmlSerializer.endTag(null, "colorMode");
                    xmlSerializer.endTag(null, "LineStyle");
                    xmlSerializer.endTag(null, "Style");
                    xmlSerializer.startTag(null, "Folder");
                    xmlSerializer.startTag(null, "name");
                    xmlSerializer.text("Google Campus");
                    xmlSerializer.endTag(null, "name");
                    xmlSerializer.startTag(null, "visibility");
                    xmlSerializer.text("1");
                    xmlSerializer.endTag(null, "visibility");
                    xmlSerializer.startTag(null, "description");
                    xmlSerializer.text("Your Data");
                    xmlSerializer.endTag(null, "description");
                    xmlSerializer.startTag(null, "Placemark");
                    xmlSerializer.startTag(null, "name");
                    xmlSerializer.text("Data");
                    xmlSerializer.endTag(null, "name");
                    xmlSerializer.startTag(null, "visibility");
                    xmlSerializer.text("1");
                    xmlSerializer.endTag(null, "visibility");
                    xmlSerializer.startTag(null, "styleUrl");
                    xmlSerializer.text("#transRedPoly");
                    xmlSerializer.endTag(null, "styleUrl");
                    xmlSerializer.startTag(null, "LineString");
                    xmlSerializer.startTag(null, "extrude");
                    xmlSerializer.text("1");
                    xmlSerializer.endTag(null, "extrude");
                    xmlSerializer.startTag(null, "altitudeMode");
                    xmlSerializer.text("relativeToGround");
                    xmlSerializer.endTag(null, "altitudeMode");
                    //xmlSerializer.startTag(null, "outerBoundaryIs");
                    //xmlSerializer.startTag(null, "LinearRing");
                    xmlSerializer.startTag(null, "coordinates");
                    for (int i = 0; i < latLngArrayListLine.size(); i++) {
                        if (isPointInPolygon(latLngArrayListLine.get(i), latLngArrayList))
                            xmlSerializer.text(latLngArrayListLine.get(i).longitude + "," + latLngArrayListLine.get(i).latitude + ",17 \n");
                    }
                    xmlSerializer.endTag(null, "coordinates");
                    //xmlSerializer.endTag(null, "LinearRing");
                    //xmlSerializer.endTag(null, "outerBoundaryIs");
                    xmlSerializer.endTag(null, "LineString");
                    xmlSerializer.endTag(null, "Placemark");
                    xmlSerializer.endTag(null, "Folder");
                    xmlSerializer.endTag(null, "Document");
                    xmlSerializer.endTag(null, "kml");
                    xmlSerializer.endDocument();
                    xmlSerializer.flush();
                    fileOutputStream.close();

                } catch (IOException | XmlPullParserException e) {
                    e.printStackTrace();
                }
            }
        });



    }


}