Adding multiple markers in Google Maps API v2 Android

Question

I want to add multiple markers in my map, but I don\'t know the way.

At the moment, I\'m using this, and it works correctly:

Marker m1 = googleMap.ad         


        

Answer 1

So, if you get coordinates from txt file you could read them like this:

BufferedReader reader = null;
try {
    reader = new BufferedReader(
        new InputStreamReader(getAssets().open("filename.txt"), "UTF-8")); 

    // do reading, usually loop until end of file reading 
    String mLine = reader.readLine();
    while (mLine != null) {
       //process line
       ...
       mLine = reader.readLine(); 
    }
} catch (IOException e) {
    //log the exception
} finally {
    if (reader != null) {
         try {
             reader.close();
         } catch (IOException e) {
             //log the exception
         }
    }
}

if your txt file looks like this

23.45 43.23
23.41 43.65
.
.
.

Than you could modify string to LatLng objects:

String[] coord = mLine.split("\\r?\\n");
ArrayList coordinates = new ArrayList;

for(int i = 0; i <  coord.lenght(); ++i){
    String[] latlng =   coord.split(" ");
    coordinates.add(new LatLng(latlng[0], latlng[1]);
}

And than:

for(LatLng cor : coordinates){
    map.addMarker(new MarkerOptions()
       .position(cor.getLat(), cor.getLng())
       .title("Hello"));
}