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Bitte helfen Sie mir, Ich möchte Breiten- und Längengradkoordinaten von dieser Aktivität zu einer anderen Aktivität durch onclick-Taste senden.Breite und Länge eingeben und an eine andere Aktivität senden
So senden Sie Lat und Long an eine andere Aktivität und eine andere Aktivität erhalten Lat und Long.
Sorry, ich bin Neuling. :(
Dies ist meine Klasse.
public class Maps extends FragmentActivity {
GoogleMap googleMap;
MarkerOptions markerOptions;
Marker gpin = null;
LatLng latLng;
String lat = "", lng = "";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.maps_layout);
SupportMapFragment supportMapFragment = (SupportMapFragment)
getSupportFragmentManager().findFragmentById(R.id.map);
// Getting a reference to the map
googleMap = supportMapFragment.getMap();
// Getting reference to btn_find of the layout activity_main
Button btn_find = (Button) findViewById(R.id.btn_find);
// Defining button click event listener for the find button
OnClickListener findClickListener = new OnClickListener() {
@Override
public void onClick(View v) {
// Getting reference to EditText to get the user input location
EditText etLocation = (EditText) findViewById(R.id.et_location);
// Getting user input location
String location = etLocation.getText().toString();
if(location!=null && !location.equals("")){
new GeocoderTask().execute(location);
}
}
};
// Setting button click event listener for the find button
btn_find.setOnClickListener(findClickListener);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main_menu, menu);
return true;
}
// An AsyncTask class for accessing the GeoCoding Web Service
private class GeocoderTask extends AsyncTask<String, Void, List<Address>>{
@Override
protected List<Address> doInBackground(String... locationName) {
// Creating an instance of Geocoder class
Geocoder geocoder = new Geocoder(getBaseContext());
List<Address> addresses = null;
try {
// Getting a maximum of 3 Address that matches the input text
addresses = geocoder.getFromLocationName(locationName[0], 3);
} catch (IOException e) {
e.printStackTrace();
}
return addresses;
}
@Override
protected void onPostExecute(List<Address> addresses) {
if(addresses==null || addresses.size()==0){
Toast.makeText(getBaseContext(), "No Location found", Toast.LENGTH_SHORT).show();
}
// Clears all the existing markers on the map
googleMap.clear();
// Adding Markers on Google Map for each matching address
for(int i=0;i<addresses.size();i++){
Address address = (Address) addresses.get(i);
// Creating an instance of GeoPoint, to display in Google Map
latLng = new LatLng(address.getLatitude(), address.getLongitude());
String addressText = String.format("%s, %s",
address.getMaxAddressLineIndex() > 0 ? address.getAddressLine(0) : "",
address.getCountryName());
markerOptions = new MarkerOptions();
markerOptions.position(latLng);
markerOptions.title(addressText);
googleMap.addMarker(markerOptions);
// Locate the first location
if(i==0)
googleMap.animateCamera(CameraUpdateFactory.newLatLng(latLng));
googleMap.setOnMapClickListener(new GoogleMap.OnMapClickListener() {
public void onMapClick(LatLng point) {
// // TODO Auto-generated method stub
if (gpin != null) {
gpin.remove();
}
gpin = googleMap.addMarker(new MarkerOptions().position(
new LatLng(point.latitude, point.longitude)).icon(
BitmapDescriptorFactory
.fromResource(R.drawable.ic_pin)));
lat = point.latitude + "";
lng = point.longitude + "";
}
});
}
}
}
}
In Ihrem Listener verwenden Sie 'startActivity()' und geben Sie eine 'Intent' mit den relevanten Informationen. –
Paket verwenden, um LatLng in Absicht zu senden –