我有使用 google maps api v1 的 android 应用程序（源代码）。不幸的是，我无法使用它，因为我无法为 v1 api 生成地图密钥。正因为如此，地图没有显示。
有没有一种简单的方法可以将源代码更改为与 v2 google maps api 兼容？我试过这个教程：http ://www.vogella.com/articles/AndroidGoogleMaps/article.html但没有更大的成功（我是android开发的新手）
public class MapviewGeolocation extends MapActivity implements LocationListener {
private MapView mapView;
private MapController mc;
public static float currentLatitude = Resources.lat;
public static float currentLongitude = Resources.lon;
// private MyLocationOverlay myLocation;
private List<Event> items;
SharedPreferences sp;
LocationManager locationManager;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// STRICTMODE
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
.permitAll().build();
StrictMode.setThreadPolicy(policy);
sp = this.getPreferences(Context.MODE_PRIVATE);
items = new ArrayList<Event>();
final Location myCurrentLocation = this.getLastBestLocation();
if (myCurrentLocation != null) {
if (Resources.isByGps) {
currentLatitude = (float) myCurrentLocation.getLatitude();
currentLongitude = (float) myCurrentLocation.getLongitude();
}
} else {
currentLatitude = Resources.lat;
currentLongitude = Resources.lon;
}
mapView = (MapView) findViewById(R.id.mapview);
mapView.setBuiltInZoomControls(true);
mc = mapView.getController();
mc.setZoom(13);
GeoPoint geo = new GeoPoint((int) (currentLatitude * 1e6),
(int) (currentLongitude * 1e6));
mc.animateTo(geo);
locationManager = (LocationManager) this
.getSystemService(Context.LOCATION_SERVICE);
MyLocationOverlay mylocationOverlay = new MyLocationOverlay(this,
mapView);
mylocationOverlay.enableMyLocation();
mapView.getOverlays().add(mylocationOverlay);
InitMapTask init_map_task = new InitMapTask();
init_map_task.execute();
}
@Override
protected void onResume() {
super.onResume();
String adres = sp.getString("adres", "");
if (adres.length() < 1) {
Resources.isByGps = true;
} else {
Resources.isByGps = false;
}
if (!Resources.isByGps) {
currentLatitude = sp.getFloat("lat", Resources.lat);
currentLongitude = sp.getFloat("lon", Resources.lon);
} else {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER, 5000, 200, this);
}
mapView.refreshDrawableState();
mapView.invalidate();
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
if (Resources.isByGps) {
locationManager.removeUpdates(this);
}
}
private void addOverlays() {
items = Resources.events;
}
public Drawable getDrawable(int population) {
Drawable drawable = null;
if (population < 300)
drawable = this.getResources().getDrawable(R.drawable.pins_rose);
else if ((300 <= population) && (500 > population))
drawable = this.getResources().getDrawable(R.drawable.pins_bleu);
else if ((500 <= population) && (800 > population))
drawable = this.getResources().getDrawable(R.drawable.pins_vert);
else if ((800 <= population) && (1000 > population))
drawable = this.getResources().getDrawable(R.drawable.pins_jaune);
else
drawable = this.getResources().getDrawable(R.drawable.pins_blanc);
return drawable;
}
private void addOverlay(MapItemizedOverlay itemizedOverlay) {
Event ev = itemizedOverlay.getLocation();
GeoPoint location = new GeoPoint((int) (ev.getLat() * 1E6),
(int) (ev.getLon() * 1E6));
OverlayItem overlayitem = new OverlayItem(location, ev.getTitle(),
ev.getCity());
itemizedOverlay.addOverlay(overlayitem);
mapView.getOverlays().add(itemizedOverlay);
}
@Override
protected boolean isRouteDisplayed() {
return false;
}
@Override
public void onLocationChanged(Location location) {
if (Resources.isTesting) {
Toast.makeText(
getBaseContext(),
"Localization changed - current: Latitude = "
+ currentLatitude + " Longitude = "
+ currentLongitude, Toast.LENGTH_LONG).show();
}
// if (Resources.isByGps) {
if (location != null) {
currentLatitude = (float) location.getLatitude();
currentLongitude = (float) location.getLongitude();
GeoPoint geo = new GeoPoint((int) (currentLatitude * 1e6),
(int) (currentLongitude * 1e6));
mc.animateTo(geo);
}
// }
mapView.invalidate();
}
@Override
public void onProviderDisabled(String provider) {
if (Resources.isTesting)
Toast.makeText(this, "GPS is off...", Toast.LENGTH_LONG).show();
}
@Override
public void onProviderEnabled(String provider) {
if (Resources.isTesting)
Toast.makeText(this, "GPS is on...", Toast.LENGTH_LONG).show();
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
if (Resources.isTesting)
Toast.makeText(this, "GPS status changed...", Toast.LENGTH_LONG)
.show();
}
public class InitMapTask extends AsyncTask<Void, Void, Void> {
private ProgressDialog progress;
@Override
protected void onPreExecute() {
super.onPreExecute();
progress = new ProgressDialog(MapviewGeolocation.this);
progress.setMessage("Loading...");
progress.show();
}
@Override
protected Void doInBackground(Void... params) {
addOverlays();
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
for (int i = 0; i < items.size(); i++) {
int color = 0;
Drawable drawable = getDrawable(400);
MapItemizedOverlay itemizedOverlay = new MapItemizedOverlay(
drawable, mapView, MapviewGeolocation.this, color,
items.get(i), currentLatitude, currentLongitude);
addOverlay(itemizedOverlay);
}
mapView.invalidate();
progress.dismiss();
}
}
/**
* @return the last know best location
*/
private Location getLastBestLocation() {
LocationManager mLocationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
Location locationGPS = mLocationManager
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
Location locationNet = mLocationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
long GPSLocationTime = 0;
if (null != locationGPS) {
GPSLocationTime = locationGPS.getTime();
}
long NetLocationTime = 0;
if (null != locationNet) {
NetLocationTime = locationNet.getTime();
}
if (0 < GPSLocationTime - NetLocationTime) {
return locationGPS;
} else {
return locationNet;
}
}
// action for bottom menu
public void actionLista(View v) {
Intent i = new Intent(this, ListviewActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
i.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
startActivity(i);
}
public void actionMapa(View v) {
Intent i = new Intent(this, MapviewGeolocation.class);
i.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
i.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
startActivity(i);
}
public void actionSettings(View v) {
Intent i = new Intent(this, Settings.class);
i.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
i.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
startActivity(i);
}
}