您好我想让我的地图放大到我当前的位置。 当前通过向仿真器发送lat和long来定义当前位置。 我该怎么做呢?
我目前的mapactivity.java
public class MapsActivity extends MapActivity {
private MapView mapView;
private MyLocationOverlay myLocOverlay;
MapController mc;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mapactivity);
initMap();
initMyLocation();
}
/**
* Initialise the map and adds the zoomcontrols to the LinearLayout.
*/
private void initMap() {
mapView = (MapView) findViewById(R.id.mapView);
View zoomView = mapView.getZoomControls();
LinearLayout myzoom = (LinearLayout) findViewById(R.id.zoom);
myzoom.addView(zoomView);
mapView.displayZoomControls(true);
mapView.getController().setZoom(17);
}
/**
* Initialises the MyLocationOverlay and adds it to the overlays of the map
*/
private void initMyLocation() {
myLocOverlay = new MyLocationOverlay(this, mapView);
myLocOverlay.enableMyLocation();
mapView.getOverlays().add(myLocOverlay);
}
@Override
protected boolean isRouteDisplayed() {
return false;
}
谢谢。
答案 0 :(得分:9)
尝试在initMyLocation代码的末尾添加:
controller = mapView.getController();
mMyLocOverlay.runOnFirstFix(new Runnable() {
public void run() {
controller.setZoom(17);
controller.animateTo(mMyLocOverlay.getMyLocation());
}
});
您可以从initMap方法中删除此行:
mapView.getController().setZoom(17);
如果有效,请告诉我
GER
答案 1 :(得分:3)
您需要实现onLocationChanged()。在我的代码中,我也在这里添加了叠加层。您至少需要使用当前位置设置Center()
public void onLocationChanged(Location location) {
List<Overlay> overlays = mapView.getOverlays();
myLocOverlay = new MyLocationOverlay(this, mapView);
overlays.add(myLocOverlay);
myLocOverlay.enableMyLocation();*
// definitely need what's below
int lat = (int) (location.getLatitude() * 1E6);
int lng = (int) (location.getLongitude() * 1E6);
GeoPoint point = new GeoPoint(lat, lng);
mc.setCenter(point);
mapView.invalidate();
}
答案 2 :(得分:1)
由于您已拥有位置数据,因此可以创建LatLng对象/结构并直接在Map对象上使用此行:
map.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 15.0f));
我使用Android Google Maps API v2