Beginning Android

SUMMARY

This chapter took a whirlwind tour of the MapView object, which displays Google Maps in your Android application. You have learned the various ways in which the map can be manipulated, and you have also learned how you can obtain geographical location data using the various network providers: GPS, Cellular triangulation, or Wi-Fi triangulation.

EXERCISES

1. If you have embedded the Google Maps API into your Android application but it does not show the map when the application is loaded, what could be the likely reasons?

2. What is the difference between geocoding and reverse geocoding?

3. Name the two location providers that you can use to obtain your location data.

4. What is the method for monitoring a location?

Answers to the Exercises can be found in Appendix C.

WHAT YOU LEARNED IN THIS CHAPTER

TOPIC	KEY CONCEPTS
Displaying the MapView	<com.google.android.maps.MapView android:id="@+id/mapView" android:layout_width="fill_parent" android:layout_height="fill_parent" android:enabled="true" android:clickable="true" android:apiKey="<your_key_here>" />
Referencing the Map library	<uses-library android:name="com.google.android.maps" />
Displaying the zoom controls	mapView.setBuiltInZoomControls(true);
Programmatically zooming in or out of the map	mc.zoomIn(); mc.zoomOut();
Changing views	mapView.setSatellite(true); mapView.setTraffic(true);
Animating to a particular location	mc = mapView.getController(); String coordinates[] = {"1.352566007" ...