我在主要活动中有一个包含map的片段。默认情况下，我在印度的博帕尔市添加了一个标记。我有一个导航抽屉，其中有一个选项设置位置。现在，当我输入城市名称时，我希望我的标记移动到该位置。我为此使用了Intent，但这没有用。我的片段代码是
public class MyFragment extends Fragment implements OnMapReadyCallback {
GoogleMap mgoogleMap;
MapView mapView;
View view;
Double Lat,Longg;
int c = 0;
public MyFragment(){
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater , ViewGroup container, Bundle savedInstanceState){
/* Lat = Double.parseDouble(getArguments().getString("Lattitude"));
Longg = Double.parseDouble(getArguments().getString("Longitude"));
if(Lat!=null)
c++;*/
view = inflater.inflate(R.layout.content_main,container , false);
return view;
}
@Override
public void onViewCreated(View view,Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
mapView = view.findViewById(R.id.map);
if(mapView!=null)
mapView.onCreate(null);
mapView.onResume();
mapView.getMapAsync(this);
}
@Override
public void onMapReady(GoogleMap googleMap) {
MapsInitializer.initialize(getContext());
mgoogleMap = googleMap;
googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
if (c == 0) {
googleMap.addMarker(new MarkerOptions().position(new LatLng(23.2599, 77.4126)).title("BHOPAL"));
CameraPosition bhopal = CameraPosition.builder().target(new LatLng(23.2599, 77.4126)).zoom(16).bearing(0).build();
googleMap.moveCamera(CameraUpdateFactory.newCameraPosition(bhopal));
} else {
googleMap.addMarker(new MarkerOptions().position(new LatLng(Lat, Longg)));
CameraPosition city = CameraPosition.builder().target(new LatLng(Lat, Longg)).zoom(16).bearing(0).build();
googleMap.moveCamera(CameraUpdateFactory.newCameraPosition(city));
}
}
}
我的位置活动是：
public class LocationActivtiy extends AppCompatActivity {
private EditText place;
private EditText lat,longi;
private double latt,longg;
private Button done;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_location_activtiy);
place = findViewById(R.id.loc);
lat = findViewById(R.id.lat);
longi = findViewById(R.id.longi);
done = findViewById(R.id.done);
List<Address>addresses = null;
if(Geocoder.isPresent()){
try {
if(place.getText()!=null) {
String location = place.getText().toString();
Geocoder gc = new Geocoder(this);
addresses = gc.getFromLocationName(location, 1);
Address addr = addresses.get(0);
latt = addr.getLatitude();
longg = addr.getLongitude();
}else if(lat.getText()!=null){
latt = Double.parseDouble(lat.getText().toString());
longg = Double.parseDouble(longi.getText().toString());
}
else{
Toast.makeText(this,"Enter any one
value",Toast.LENGTH_LONG).show();
}
}
catch (IOException e) {
Toast.makeText(this,"Services Not
available",Toast.LENGTH_LONG).show();
}
}
done.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new
Intent(LocationActivtiy.this,MyFragment.class);
Bundle bundle = new Bundle();
bundle.putDouble("Lattitude",latt);
bundle.putDouble("Longitude",longg);
MyFragment myFragment = new MyFragment();
myFragment.setArguments(bundle);
startActivity(intent);
}
});
}
}
我有2个选择，我可以按城市名称或经纬度移动到该位置。但是这些来自不同的活动。另外，如果我的应用程序是首次打开，则默认情况下，应该在博帕尔位置上设置标记。