[android-developers] pass parameters between threads

I have a thread to make a web service request. And then I get the data
and store it in response variable. Now I need to add items to the map
on the main thread, but how do i get the response data back in the
main thread. Here is what I have:

private void processHistory(final String authkey, final String unitId)
{
new Thread(){
public void run(){
List<Map<String, String>> response =
WebService.getHistoryData("today",unitId,authkey);


myHandler.post(myRunnable);

}
}.start();
}

final Runnable myRunnable = new Runnable() {
public void run() {

Iterator<Map<String, String>> iterator = response.iterator();

while(iterator.hasNext()){
Map<String, String> item = iterator.next();

mMap.addMarker(new MarkerOptions()
.position(new
LatLng(Double.parseDouble(item.get("latitude")),
Double.parseDouble(item.get("longitude"))))
.title(item.get("address")));
}

}
};

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