想要在每个标记上显示 Uniqueid ，从服务器收到uniqueid。 我想将标记的TAG设置为每个标记uniqueid show，但我尝试了几次，但未能实现.. 请帮助我如何在每个标记上设置每个标记唯一ID ..
public class MainActivity extends AppCompatActivity
implements GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener {
private static MainActivity instance;
private ArrayList<LatLng> latLngList;
private static final int ERROR_DIALOG_REQUEST = 9001;
GoogleMap mMap;
int FirstTimeMapIniciate = 0;
double latitude = 0;
double longitude = 0;
private GoogleApiClient mLocationClient;
private com.google.android.gms.location.LocationListener mListener;
private Marker marker;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
latLngList = new ArrayList<>();
if (servicesOK()) {
setContentView(R.layout.activity_map);
if (initMap()) {
mLocationClient = new GoogleApiClient.Builder(this)
.addApi(LocationServices.API)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
mLocationClient.connect();
mMap.setMyLocationEnabled(true);
} else {
Toast.makeText(this, "Map Connected!", Toast.LENGTH_SHORT).show();
}
} else {
setContentView(R.layout.activity_main);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
switch (id) {
case R.id.mapTypeNone:
mMap.setMapType(GoogleMap.MAP_TYPE_NONE);
break;
case R.id.mapTypeNormal:
mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
break;
case R.id.mapTypeSatellite:
mMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
break;
case R.id.mapTypeTerrain:
mMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
break;
case R.id.mapTypeHybrid:
mMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
break;
}
return super.onOptionsItemSelected(item);
}
public boolean servicesOK() {
int isAvailable = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
if (isAvailable == ConnectionResult.SUCCESS) {
return true;
} else if (GooglePlayServicesUtil.isUserRecoverableError(isAvailable)) {
Dialog dialog = GooglePlayServicesUtil.getErrorDialog(isAvailable, this, ERROR_DIALOG_REQUEST);
dialog.show();
} else {
Toast.makeText(this, "Can't connect to mapping service", Toast.LENGTH_SHORT).show();
}
return false;
}
private boolean initMap() {
if (mMap == null && FirstTimeMapIniciate == 0) {
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mMap = mapFragment.getMap();
mMap.setMyLocationEnabled(true);
mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
}
return (mMap != null);
}
private void gotoLocation(double lat, double lng, float zoom) {
LatLng latLng = new LatLng(lat, lng);
CameraUpdate update = CameraUpdateFactory.newLatLngZoom(latLng, zoom);
mMap.moveCamera(update);
}
public void showCurrentLocation(MenuItem item) {
Location currentLocation = LocationServices.FusedLocationApi
.getLastLocation(mLocationClient);
if (currentLocation == null) {
Toast.makeText(this, "Couldn't connect!", Toast.LENGTH_SHORT).show();
} else {
LatLng latLng = new LatLng(
currentLocation.getLatitude(),
currentLocation.getLongitude()
);
CameraUpdate update = CameraUpdateFactory.newLatLngZoom(
latLng, 10
);
mMap.moveCamera(update);
}
}
@Override
public void onConnected(Bundle bundle) {
Toast.makeText(this, "Ready to map!", Toast.LENGTH_SHORT).show();
mListener = new LocationListener() {
@Override
public void onLocationChanged(Location location) {
latitude = location.getLatitude();
longitude = location.getLongitude();
LatLng latLng1 = new LatLng(latitude, longitude);
MarkerOptions mp = new MarkerOptions();
mp = new MarkerOptions();
mp.position(new LatLng(location.getLatitude(),
location.getLongitude()));
Toast.makeText(MainActivity.this, "Location : " + location.getLatitude() + ", " + location.getLongitude(), Toast.LENGTH_LONG).show();
if (FirstTimeMapIniciate == 0) {
gotoLocation(location.getLatitude(), location.getLongitude(), 15);
FirstTimeMapIniciate = 1;
}
AppUtill.UniqueId();
new JSONAsyncTask().execute("http://13.7/hajjapi/api/GPSLocator/GetLocations");
if (AppStatus.getInstance(getContext()).isOnline()) {
} else {
Toast.makeText(MainActivity.this, "Turn On your WIFI ", Toast.LENGTH_LONG).show();
}
}
};
LocationRequest request = LocationRequest.create();
request.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
request.setInterval(1000);
request.setFastestInterval(1000);
LocationServices.FusedLocationApi.requestLocationUpdates(mLocationClient, request, mListener);
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
}
class JSONAsyncTask extends AsyncTask<String, Void, Boolean> {
ProgressDialog dialog;
@Override
protected void onPreExecute() {
super.onPreExecute();
Toast.makeText(getApplicationContext(), "fetch data from server", Toast.LENGTH_LONG).show();
}
@Override
protected Boolean doInBackground(String... urls) {
try {
HttpGet httpGet = new HttpGet(urls[0]);
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response = httpclient.execute(httpGet);
int status = response.getStatusLine().getStatusCode();
if (status == 200) {
HttpEntity entity = response.getEntity();
String data = EntityUtils.toString(entity);
JSONArray jsonarray = new JSONArray(data);
latLngList.clear();
for (int i = 0; i < jsonarray.length(); i++) {
ModelClass modelClass = new Gson().fromJson(jsonarray.getJSONObject(i).toString(), ModelClass.class);
LatLng latLng = new LatLng(Double.parseDouble(modelClass.getLatitude()), Double.parseDouble(modelClass.getLongitude())); // Use your server's methods
latLngList.add(latLng);
}
return true;
}
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
}
return false;
}
protected void onPostExecute(Boolean result) {
Toast.makeText(getApplicationContext(), "Receicve data from server", Toast.LENGTH_LONG).show();
if (result == false) {
Toast.makeText(getApplicationContext(), "Unable to fetch data from server", Toast.LENGTH_LONG).show();
}
AddPointer();
}
}
private void AddPointer() {
try {
if (marker != null) {
mMap.clear();
Toast.makeText(getApplicationContext(), "Remove", Toast.LENGTH_LONG).show();
}
for (LatLng object : latLngList)
marker = mMap.addMarker(new MarkerOptions().title("User Name").position(object).icon(BitmapDescriptorFactory.fromResource(R.drawable.female4)));
System.out.println(marker.getPosition() + " Marker position.......");
} catch (Exception e) {
Toast.makeText(MainActivity.this, "Error ", Toast.LENGTH_LONG).show();
}
}
public MainActivity() {
instance = this;
}
public static Context getContext() {
return instance;
}
}
这是我的模型类
public class ModelClass {
@SerializedName("longi")
public String longitudeServer;
@SerializedName("lati")
public String latitudeServer;
@SerializedName("uniqueid")
public String uniqueidSserver;
public ModelClass(){
// blank constructor is required
}
public String getLongitude(){
return longitudeServer;
}
public String getLatitude(){
return latitudeServer;
}
public String getUniqueId(){
return uniqueidSserver;
}
}
这是我的Json数据
[{"longi":"74.3230343","lati":"31.5004135","uniqueid":"25c04146a064bce9"},{"longi":"74.3230899","lati":"31.5003008","uniqueid":"78cd7908e14a38d6"}]
答案 0 :(得分：2)
使用您的模型类从服务器获取LatLng列表并解析JSON数据，然后您可以将所有点设置为您最喜欢的循环以逐个获取点并创建标记。我希望这个解决方案对你有用。
答案 1 :(得分：1)
而不是LatLng列表保存ModelClass列表。然后，您将获得创建标记所需的坐标和ID。