我开始自学将Android Studio用作学校项目,并希望在此应用中使用Google Maps API。
我有一张地图,上面有我的位置,但是每次移动相机时,它都会立即将相机重新定位到我的位置。
我当前的代码是这样:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
BitmapDrawable bitmapDrawable = (BitmapDrawable) getResources().getDrawable(R.drawable.my_marker_icon);
Bitmap b = bitmapDrawable.getBitmap();
Bitmap smallMarker = Bitmap.createScaledBitmap(b, 40, 40, false);
mo = new MarkerOptions().position(new LatLng(0, 0)).title("My Current Location").icon(BitmapDescriptorFactory.fromBitmap(smallMarker));
if (Build.VERSION.SDK_INT >= 23 && !isPermissionGranted()) {
requestPermissions(PERMISSIONS, PERMISSION_ALL);
} else requestLocation();
if (!isLocationEnabled())
showAlert(1);
}
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
marker = mMap.addMarker(mo);
}
@Override
public void onLocationChanged(Location location) {
LatLng myCoordinates = new LatLng(location.getLatitude(), location.getLongitude());
marker.setPosition(myCoordinates);
CameraUpdate center = CameraUpdateFactory.newLatLng(myCoordinates);
CameraUpdate zoom = CameraUpdateFactory.zoomTo(15.0f);
mMap.moveCamera(center);
mMap.animateCamera(zoom);
}