Android Programming: The Big Nerd Ranch Guide

Showing the User’s Location on a Map

With the requirements behind you, now it is time to enjoy the fruits of your labor and show the user a map. The Maps API includes MapFragment and SupportMapFragment that you can subclass to conveniently handle the work of setting up the MapView and its associated model object, GoogleMap.

Create RunMapFragment, a subclass of SupportMapFragment, in a new file using the code below.

Listing 36.2  Basic RunMapFragment (RunMapFragment.java)

public class RunMapFragment extends SupportMapFragment {
    private static final String ARG_RUN_ID = "RUN_ID";

    private GoogleMap mGoogleMap;

    public static RunMapFragment newInstance(long runId) {
        Bundle args = new Bundle();
        args.putLong(ARG_RUN_ID, runId);
        RunMapFragment rf = new ...