在我的应用程序中，当我单击一个标记时，我有两组标记应该删除另一个标记。但是marker.remove（）不起作用，检查了标记是否！= null然后删除标记但是标记是没有删除请帮助我。
public class MapFragment extends Fragment implements LocationListener
{
private static final String LOG_TAG = "ExampleApp";
private MapView mMapView;
private GoogleMap mMap;
private Bundle mBundle;
private static final String SERVICE_URL = "http://203.187.247.199/primevts/vtsservice.svc/data";
JSONObject json = null;
JSONObject jsonobject = null;
JSONObject jsonobject1 =null;
JSONObject jsonobject2 =null;
JSONObject ja = null;
JSONArray jsonarray = null;
JSONArray jsonarray1 = null;
JSONArray jsonarray2 = null;
ProgressDialog mProgressDialog;
ArrayList<HashMap<String, String>> arraylist1;
ArrayList<HashMap<String, String>> arraylist11;
ArrayList<HashMap<String, String>> arraylist12;
ArrayList<HashMap<String, String>> arraylist;
List<Marker> markerList = new ArrayList<Marker>();
private Timer timer;
static String LONG = "Long";
static String LAT = "Lat";
ArrayList<String> ct;
public double latt = 0;
public double lng = 0;
public ArrayList<Integer> dLat;
private AlarmManager alarmMgr;
private PendingIntent alarmIntent;
private Handler handler;
public Marker marker;
Marker stop;
String RegistrationNo="";
LatLng destination,source,destination2,center;
Polyline polylin;
String ime1,destname,routeid;
GMapV2GetRouteDirection md;
private HashMap<String, Marker> mMarkers = new HashMap<>();
int value=1;
// LatLngBounds values ;
double latitude, longitude,destlat,destlong,sourcelat,sourcelong,destlat2,destlong2;
String ime,reg,regi;
Geocoder geocoder;
List<Address> addresses;
CircleOptions circleOptions;
Circle circle;
// LatLng val;
float[] distance = new float[2];
static HashMap<String, String> datas;
static HashMap<String, String> map;
String[] latlngvalues;
// LocationManager locman;
Context context;
View rootView;
ImageView imageView1;
TextView Address;
public MapFragment() {
}
@Override
public View onCreateView(final LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.fragment_layout_one, container, false);
MapsInitializer.initialize(getActivity());
mMapView = (MapView)rootView.findViewById(R.id.mapView);
Address=(TextView)rootView.findViewById(R.id.adressText);
//imageView1=(ImageView) rootView.findViewById(R.id.imageView1);
mMapView.onCreate(mBundle);
MapsInitializer.initialize(getActivity());
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
.permitAll().build();
StrictMode.setThreadPolicy(policy);
}
new DownloadJSON().execute();
setUpMapIfNeeded(rootView);
new DestinationJSON().execute();
mMap.setInfoWindowAdapter(new InfoWindowAdapter() {
@Override
public View getInfoContents(Marker marker) {
// TODO Auto-generated method stub
return null;
}
@Override
public View getInfoWindow(Marker marker) {
// TODO Auto-generated method stub
View v = getActivity().getLayoutInflater().inflate(R.layout.info_window_layout, null);
TextView markerLabel = (TextView)v.findViewById(R.id.ime);
TextView destiname=(TextView)v.findViewById(R.id.destname);
TextView route=(TextView)v.findViewById(R.id.routeid);
markerLabel.setText(regi);
destiname.setText(destname);
route.setText(routeid);
Log.e("imeid", ""+ime1);
return v;
}
});
/* handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
new DownloadJSON().execute();
setUpMapIfNeeded(rootView);
Toast.makeText(getActivity(), "Data Updated!!!! ", Toast.LENGTH_SHORT).show();
Log.e("Data in Log", "");
}
}, 1000);
*/
final Handler handler = new Handler();
timer = new Timer();
TimerTask doAsynchronousTask = new TimerTask() {
@Override
public void run() {
handler.post(new Runnable() {
public void run() {
//mMap.clear();
//Toast.makeText(getActivity(), "Data Updated!!!! ", Toast.LENGTH_SHORT).show();
new DownloadJSON().execute();
setUpMapIfNeeded(rootView);
}
});
}
};
timer.schedule(doAsynchronousTask, 20000, 20000);
/*LocationManager locman = (LocationManager)getActivity().getSystemService(Context.LOCATION_SERVICE);
//locman.requestLocationUpdates(minTime, minDistance, criteria, intent);
locman.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 10, this);*/
return rootView;
}
private void setUpMapIfNeeded(View inflatedView) {
if (mMap == null) {
mMap = ((MapView) inflatedView.findViewById(R.id.mapView)).getMap();
mMap.setMyLocationEnabled(true);
Location myLocation = mMap.getMyLocation();
if (mMap != null) {
//mMap.clear();
mMap.setOnCameraChangeListener(new OnCameraChangeListener() {
@Override
public void onCameraChange(final CameraPosition arg0) {
mMap.setOnMapLoadedCallback(new GoogleMap.OnMapLoadedCallback() {
@Override
public void onMapLoaded() {
LatLng latLng= mMap.getCameraPosition().target;
double lat = latLng.latitude;
double lng = latLng.longitude;
Log.e("lati",""+lat);
Log.e("longi",""+lng);
Log.d("TAG", latLng.toString());
//mMap.clear();
if(circle!=null){
circle.remove();
//mMap.clear();
}
circleOptions = new CircleOptions();
circleOptions.center(latLng);
//circleOptions.fillColor(Color.TRANSPARENT);
circleOptions.radius(10000);
circleOptions.strokeColor(Color.TRANSPARENT);
circle = mMap.addCircle(circleOptions);
Log.e("",""+circle);
center = mMap.getCameraPosition().target;
new GetLocationAsync(center.latitude, center.longitude).execute();
/* geocoder = new Geocoder(getActivity(), Locale.getDefault());
try {
addresses = geocoder.getFromLocation(lat, lng, 1);
String address = addresses.get(0).getAddressLine(0); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
Log.e("address",""+address);
String city = addresses.get(0).getLocality();
Log.e("city",""+city);
String state = addresses.get(0).getAdminArea();
Log.e("state",""+state);
String country = addresses.get(0).getCountryName();
Log.e("contry",""+country);
String postalCode = addresses.get(0).getPostalCode();
Log.e("postalcode",""+postalCode);
String knownName = addresses.get(0).getFeatureName();
Log.e("knownName",""+knownName);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} // Here 1 represent max location result to returned, by documents it recommended 1 to 5
//Toast.makeText(this, latLng.toString(), Toast.LENGTH_LONG).show();
}*/
}
});
}
});
mMap.setOnMarkerClickListener(new OnMarkerClickListener() {
@Override
public boolean onMarkerClick(Marker arg0) {
// TODO Auto-generated method stub
if(stop!=null){
stop.remove();
}
arg0.showInfoWindow();
regi=arg0.getTitle().toString();
Log.e("aaa", ""+regi);
JSONPost jsonpost= new JSONPost();
ja=jsonpost.datewise(regi);
Log.e("Home_details..", "" + ja);
// new DownloadJSON2().execute();
try
{
arraylist11 = new ArrayList<HashMap<String, String>>();
arraylist12 = new ArrayList<HashMap<String, String>>();
jsonarray = ja.getJSONArray("Routeinbus");
for (int i = 0; i <jsonarray.length(); i++) {
HashMap<String, String> map = new HashMap<String, String>();
json = jsonarray.getJSONObject(i);
Log.e("G>>>>>>>>>>>", "" + json);
// Retrive JSON Objects
// map.put("flatID", jsonobject.getString("flatID"));
map.put("FromLat", json.getString("FromLat"));
map.put("FromLong", json.getString("FromLong"));
sourcelat = json.getDouble("FromLat");
sourcelong=json.getDouble("FromLong");
source=new LatLng(sourcelat, sourcelong);
map.put("Fromaddress", json.getString("Fromaddress"));
map.put("ToLat", json.getString("ToLat"));
map.put("ToLong", json.getString("ToLong"));
routeid=json.getString("RouteID");
destname=json.getString("Toaddress");
destlat2=json.getDouble("ToLat");
destlong2=json.getDouble("ToLong");
destination2=new LatLng(destlat2, destlong2);
jsonarray1 = json.getJSONArray("Routes");
Log.d("Hbbbbbbbbbbbbbbb", "" + jsonarray1);
for (int j = 0; j <jsonarray1.length(); j++) {
jsonobject1 = jsonarray1.getJSONObject(j);
jsonarray2=jsonobject1.getJSONArray("stages");
Log.d("jsonarray2", "" + jsonarray2);
for(int k=0;k<jsonarray2.length();k++)
{
jsonobject2 =jsonarray2.getJSONObject(k);
HashMap<String, String> map1 = new HashMap<String, String>();
map1.put("Lat",jsonobject2.getString("Lat"));
Log.d("Hbbbbbbbbbbbbbbb", "" + jsonobject2.getString("Lat"));
map1.put("Long",jsonobject2.getString("Long"));
map1.put("StopName", jsonobject2.getString("StopName"));
Log.d("Hbbbbbbbbbbbbbbb", "" + jsonobject2.getString("Long"));
// map1.put("LiveLongitude",jsonobject1.getString("LiveLongitude"));
// Log.d("Hbbbbbbbbbbbbbbb", "" + jsonobject1.getString("LiveLongitude"));
arraylist12.add(map1);
Log.e("arraylist12", ""+arraylist12);
//marker=mMap.addMarker(new MarkerOptions().position(destination2).icon(BitmapDescriptorFactory .fromResource(R.drawable.bustour)));
for (int m = 0; m < arraylist12.size(); m++)
{
final LatLng stopposition = new LatLng(Double .parseDouble(arraylist12.get(m).get("Lat")),Double.parseDouble(arraylist12.get(m).get("Long")));
Log.e("position", ""+stopposition);
String stopname = arraylist12.get(m).get("StopName");
Log.e("markcheck",""+stopname);
final MarkerOptions options = new MarkerOptions().position(stopposition);
//mMap.addMarker(options);
stop=mMap.addMarker(options.icon(BitmapDescriptorFactory .fromResource(R.drawable.bustour)).title(stopname));
}
}
}
arraylist11.add(map);
Log.e("arraylist11",""+arraylist11);
}
}catch (Exception e) {
String result = "Error";
}
return false;
}
});