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私は現在の位置から最も近いすべての大使館を表示しようとしています。私は現在の場所からすべての大使館を印刷することができますが、私が直面している問題は、タイトルがすべての大使館で同じであるということです。すべての大使館はこの写真のように同じタイトルを表示しています。 
Google map markerタイトルandroid
私がしたいのは、各大使館の名前をタイトルで表示することです。現在は「マルタ大使館」のみを表示しています。以下は私のコードですので、私が間違っている場所を教えてください。私はAndroidを初めて使っています。これは私の最初のプロジェクトです。私の質問が十分に強くなければ、事前にお詫びしてください。また、事前に多くのおかげで以下の私code`publicクラスMapsActivityがAppCompatActivityがOnMapReadyCallback、 GoogleApiClient.ConnectionCallbacks、 GoogleApiClient.OnConnectionFailedListener、 LocationListenerを実装して延びている{
GoogleMap mMap;
GoogleApiClient mGoogleApiClient;
Location mLastLocation;
Marker mCurrLocationMarker;
LocationRequest mLocationRequest;
private boolean flag = true;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
checkLocationPermission();
}
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(map);
mapFragment.getMapAsync(this);
}
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
//Initialize Google Play Services
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
buildGoogleApiClient();
mMap.setMyLocationEnabled(true);
}
} else {
buildGoogleApiClient();
mMap.setMyLocationEnabled(true);
}
}
protected synchronized void buildGoogleApiClient() {
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
mGoogleApiClient.connect();
}
@Override
public void onConnected(Bundle bundle) {
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(1000);
mLocationRequest.setFastestInterval(1000);
mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
}
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onLocationChanged(Location location) {
mLastLocation = location;
if (mCurrLocationMarker != null) {
mCurrLocationMarker.remove();
}
//Place current location marker
LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(latLng);
markerOptions.title("Current Position");
markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA));
mCurrLocationMarker = mMap.addMarker(markerOptions);
//move map camera
mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
mMap.animateCamera(CameraUpdateFactory.zoomTo(10));
//stop location updates
if (mGoogleApiClient != null) {
LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
}
new getEmbassyPoint().execute(new LatLng(location.getLatitude(), location.getLongitude()));
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
}
public static final int MY_PERMISSIONS_REQUEST_LOCATION = 99;
public boolean checkLocationPermission() {
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED) {
// Asking user if explanation is needed
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.ACCESS_FINE_LOCATION)) {
// Show an explanation to the user *asynchronously* -- don't block
// this thread waiting for the user's response! After the user
// sees the explanation, try again to request the permission.
//Prompt the user once explanation has been shown
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
MY_PERMISSIONS_REQUEST_LOCATION);
} else {
// No explanation needed, we can request the permission.
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
MY_PERMISSIONS_REQUEST_LOCATION);
}
return false;
} else {
return true;
}
}
@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
switch (requestCode) {
case MY_PERMISSIONS_REQUEST_LOCATION: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted. Do the
// contacts-related task you need to do.
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
if (mGoogleApiClient == null) {
buildGoogleApiClient();
}
mMap.setMyLocationEnabled(true);
}
} else {
// Permission denied, Disable the functionality that depends on this permission.
Toast.makeText(this, "permission denied", Toast.LENGTH_LONG).show();
}
return;
}
// other 'case' lines to check for other permissions this app might request.
// You can add here other case statements according to your requirement.
}
}
class getEmbassyPoint extends AsyncTask<LatLng, String, ArrayList<LatLng>> {
double x, y;
String name;
private LatLng myPoint;
@Override
protected ArrayList<LatLng> doInBackground(LatLng... params) {
myPoint = params[0];
String s = "https://maps.googleapis.com/maps/api/place/nearbysearch" + "/json?location=" + myPoint.latitude + "," + myPoint.longitude
+ "&radius=50000&types=embassy&name=ireland" + "&key=my api key";
Log.i("app", s);
try {
URL url = new URL(s);
BufferedReader r = new BufferedReader(new InputStreamReader(((HttpURLConnection) url.openConnection()).getInputStream()));
JsonParser jp = new JsonParser();
JsonElement jsonElement = jp.parse(r);
JsonObject jsonObject = jsonElement.getAsJsonObject();
JsonArray jsonArray = jsonObject.getAsJsonArray("results");
List<LatLng> listt = new ArrayList<>();
for (JsonElement element : jsonArray) {
name = element.getAsJsonObject().get("name").getAsString();
x = Double.valueOf(element.getAsJsonObject().get("geometry").getAsJsonObject().get("location").getAsJsonObject().get("lat").getAsString());
y = Double.valueOf(element.getAsJsonObject().get("geometry").getAsJsonObject().get("location").getAsJsonObject().get("lng").getAsString());
listt.add(new LatLng(x,y));
}
return (ArrayList<LatLng>) listt;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
@Override
protected void onPostExecute(ArrayList<LatLng> latLngs) {
super.onPostExecute(latLngs);
for (LatLng latLng : latLngs){
Log.i("app", "onPostExecute: lat: " + latLng.latitude);
List<Marker> markers = new ArrayList<Marker>();
Marker marker = mMap.addMarker(new MarkerOptions().position(latLng).title(name).icon(BitmapDescriptorFactory.fromResource(R.drawable.mosque)));
markers.add(marker);
MarkerOptions mp = new MarkerOptions();
mp.title(name);
}
}
}
} `
この情報は私には分かりませんが、いくつかのコードで記述してください。ありがとう –
あなたのために書かれたコード。 – apmartin1991
コンパイルされるコードでもう一度更新されました。 – apmartin1991