Im try inflate follow these example
public void onMapReady(GoogleMap googleMap) {
cursor = mb.listar();
mMap = googleMap;
// Add a marker in Sydney and move the camera
//LatLng sydney = new LatLng(-34, 151);
// mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
//mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
}
And my methods are
CajeroDAO
public Cursor getAll() throws SQLException {
Cursor c = MiBD.getDB().query(true, CAJEROS_TABLE, CAMPOS_CAJEROS, null, null, null, null, null, null);
return c;
}
And
MiCajeroOperacional
public Cursor listar() {
return cajero.getAll();
}
Then, as I add cursor marks for each of them?
Solution for my problem
Here post my solution for center and add markers from cursor, is easy quick solution.
#Override
public void onMapReady(GoogleMap googleMap) {
cursor = mb.listar();
mMap = googleMap;
LatLng mark = null;
List<Marker> markersList = new ArrayList<Marker>();
int i = 0;
while (cursor.moveToNext()) {
double lat = cursor.getDouble(cursor.getColumnIndex("lat"));
double lng = cursor.getDouble(cursor.getColumnIndex("lng"));
mark = new LatLng(lat, lng);
Marker markCajero = mMap.addMarker(new MarkerOptions().position(mark).title("Sucursal Nº" + i).snippet(cursor.getString(cursor.getColumnIndex("direccion"))));
// mMap.moveCamera(CameraUpdateFactory.newLatLng(mark), 15);
markersList.add(markCajero);
i++;
}
cursor.close();
builder = new LatLngBounds.Builder();
for (Marker m : markersList) {
builder.include(m.getPosition());
}
int padding = 50;
LatLngBounds bounds = builder.build();
cu = CameraUpdateFactory.newLatLngBounds(bounds, padding);
mMap.moveCamera(cu);
}
Related
I have set my code out so when the user moves to the map fragment it shows a map with all the markers in the database. I have two dummy markers and they work, but thew ones from my database dont show.
I have made sure the SQL query is correct and have tried adding static markers, but the dynamic ones dont show up.
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.map,container,false);
mapView = (MapView) rootView.findViewById(R.id.mapView);
mapView.onCreate(savedInstanceState);
mapView.getMapAsync(new OnMapReadyCallback() {
#Override
public void onMapReady(GoogleMap googleMap) {
Log.i("DEBUG", "onMapReady");
map = googleMap;
LatLng sydney = new LatLng(-34, 151);
LatLng paris = new LatLng(12,-40);
map.addMarker(new
MarkerOptions().position(sydney).title("Marker in Sydney"));
map.addMarker(new
MarkerOptions().position(paris).title("Marker in Ocean"));
try {
String sql = "SELECT
marker.markerLat,marker.markerLon,marker.markerDate
FROM marker LEFT JOIN tripMarker ON" +
" marker.markerID = tripMarker.markerID LEFT
JOIN userTrip ON userTrip.tripID =
tripMarker.tripID " +
"WHERE userTrip.userID = '" + User.UserLoggedOn
+ "';";
Cursor cursor = db.rawQuery(sql, null);
if ( cursor.moveToFirst() ) {
while (cursor.moveToNext()) {
double lat =
cursor.getDouble(cursor.getColumnIndex("markerLat"));
System.out.println(lat);
double lon =
cursor.getDouble(cursor.getColumnIndex("markerLon"));
System.out.println(lon);
LatLng latLng = new LatLng(lat, lon);
MarkerOptions markerOptions = new
MarkerOptions();
markerOptions.position(latLng);
map.addMarker(markerOptions.title(cursor.getString(
cursor.getColumnIndex("markerDate"))));
}
}
}catch (Exception e){
e.printStackTrace();
}
}
});
return rootView;
}
Here is my fragment XML
<com.google.android.gms.maps.MapView
android:id="#+id/mapView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
class="com.google.android.gms.maps.SupportMapFragment" />
Should you be skipping the first row? Is it the only row that would be returned?
Perhaps the reason why logging doesn't work as per the comment :-
for some reason, I have put logs in the if statement and in the
catch, but I cant seem to find them. Does that mean they both dont
trigger?
Perhaps you should try (removing the if (csr.moveToFirst()) which will skip the first row) by using :-
MarkerOptions().position(paris).title("Marker in Ocean"));
try {
String sql = "SELECT
marker.markerLat,marker.markerLon,marker.markerDate
FROM marker LEFT JOIN tripMarker ON" +
" marker.markerID = tripMarker.markerID LEFT
JOIN userTrip ON userTrip.tripID =
tripMarker.tripID " +
"WHERE userTrip.userID = '" + User.UserLoggedOn
+ "';";
Cursor cursor = db.rawQuery(sql, null);
while (cursor.moveToNext()) {
double lat =
cursor.getDouble(cursor.getColumnIndex("markerLat"));
System.out.println(lat);
double lon =
cursor.getDouble(cursor.getColumnIndex("markerLon"));
System.out.println(lon);
LatLng latLng = new LatLng(lat, lon);
MarkerOptions markerOptions = new
MarkerOptions();
markerOptions.position(latLng);
map.addMarker(markerOptions.title(cursor.getString(
cursor.getColumnIndex("markerDate"))));
}
}catch (Exception e){
e.printStackTrace();
}
I would also drop wrapping the code in a try/catch clause you may well be hiding issues.
In my fragment i get error java.lang.IllegalStateException: no included points = =
i try many solution but not work
Here is my code:
public void mSetUpMap() {
/**clear the map before redraw to them*/
googleMap.clear();
/**Create dummy Markers List*/
if (AppUtil.itinerary != null)
str = AppUtil.itinerary.getItinerary();
if (AppUtil.itinerary != null)
shareUrl = AppUtil.itinerary.getShareUrl();
Log.e("Ittt", "" + AppUtil.itinerary.getItinerary());
((HomeActivity) getActivity()).setTexrViewText(str);
poiList.clear();
poiList = AppUtil.itinerary.getPoiList();
final List<Marker> markersList = new ArrayList<>();
for (POI item : poiList) {
Marker m1 = googleMap.addMarker(new MarkerOptions().position(new
LatLng(item.getLatitude(),
item.getLongitude()))
.title(item.getName()).anchor(0.7f, 0.6f)
.icon(BitmapDescriptorFactory.fromBitmap(getCustomMarker
((R.drawable.m2red),
item.getName()))));
markersList.add(m1);
}
builder = new LatLngBounds.Builder();
for (Marker m : markersList) {
builder.include(m.getPosition());
}
/**initialize the padding for map boundary*/
int padding = 200;
/**create the bounds from latlngBuilder to set into map camera*/
LatLngBounds bounds = builder.build();
/**create the camera with bounds and padding to set into map*/
cu = CameraUpdateFactory.newLatLngBounds(bounds, padding);
/**call the map call back to know map is loaded or not*/
googleMap.setOnMapLoadedCallback(new GoogleMap.OnMapLoadedCallback() {
#Override
public void onMapLoaded() {
/**set animated zoom camera into map*/
googleMap.animateCamera(cu);
PolylineOptions polylineOptions = new PolylineOptions();
for (POI item : poiList) {
polylineOptions.add(new LatLng(item.getLatitude(),
item.getLongitude()));
}
polylineOptions.width(5);
polylineOptions.getPoints();
polylineOptions.color(getResources().getColor(R.color.red));
googleMap.addPolyline(polylineOptions);
polylineOptions.geodesic(true);
if (!poiList.isEmpty()) {
// Adjusting Bounds
LatLngBounds.Builder builder = new LatLngBounds.Builder();
for (Marker m : markersList) {
builder.include(m.getPosition());
}
LatLngBounds bounds = builder.build();
CameraUpdate mCameraUpdate =
CameraUpdateFactory.newLatLngBounds(bounds, 2);
googleMap.animateCamera(mCameraUpdate);
}
}
});
googleMap.setOnMarkerClickListener(new
GoogleMap.OnMarkerClickListener()
{
#Override
public boolean onMarkerClick(final Marker marker) {
ValueAnimator ani = ValueAnimator.ofFloat(0, 1); //change for
(0,1) if you want a fade in
ani.setDuration(2000);
ani.addUpdateListener(new ValueAnimator.AnimatorUpdateListener()
{
#Override
public void onAnimationUpdate(ValueAnimator animation) {
marker.setAlpha((float) animation.getAnimatedValue());
}
});
ani.start();
if (marker.getTitle().equals(poiList.get(0).getName())) {
AppUtil.poi = poiList.get(0);
name = poiList.get(0).getName();
img = poiList.get(0).getImage();
lat = poiList.get(0).getLatitude();
lon = poiList.get(0).getLongitude();
showPoi(name, img, lat, lon);
} else if (marker.getTitle().equals(poiList.get(1).getName())) {
AppUtil.poi = poiList.get(1);
name = poiList.get(1).getName();
img = poiList.get(1).getImage();
lat = poiList.get(1).getLatitude();
lon = poiList.get(1).getLongitude();
showPoi(name, img, lat, lon);
} else if (marker.getTitle().equals(poiList.get(2).getName())) {
AppUtil.poi = poiList.get(2);
name = poiList.get(2).getName();
img = poiList.get(2).getImage();
lat = poiList.get(2).getLatitude();
lon = poiList.get(2).getLongitude();
showPoi(name, img, lat, lon);
}
return true;
}
});
}
I get error LatLngBounds bounds = builder.build();
this line
first time fragment work perfect but when i pressed back button and try to get this fragment i get this error
My Logcat Show:
java.lang.IllegalStateException: no included points
at com.google.android.gms.common.internal.zzac.zza(Unknown Source:8)
at com.google.android.gms.maps.model.LatLngBounds$Builder.build(Unknown
Source:10)
at
info.ernica.fragment.ItinerarioFragment.mSetUpMap
(ItinerarioFragment.java:455)
at info.ernica.fragment.ItinerarioFragment$2.onMapReady
(ItinerarioFragment.java:205)
at com.google.android.gms.maps.MapFragment$zza$1.zza(Unknown Source:7)
at com.google.android.gms.maps.internal.zzt$zza.onTransact(Unknown
Source:32)
at android.os.Binder.transact(Binder.java:612)
at fg.b(:com.google.android.gms.dynamite_mapsdynamite#13280051#13.2.80
(040408-211705629):19)
at
com.google.android.gms.maps.internal.bg.a
(:com.google.android.gms.dynamite_mapsdynamite#13280051#13.2.80 (040408-
211705629):5)
at com.google.maps.api.android.lib6.impl.be.run
(:com.google.android.gms.dynamite_mapsdynamite#13280051#13.2.80 (040408-
211705629):5)
at android.os.Handler.handleCallback(Handler.java:789)
at android.os.Handler.dispatchMessage(Handler.java:98)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6938)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)
Instead of checking whether poiList is empty, you need to check if markersList is empty in the setOnMapLoadedCallback method.
if (!markersList.isEmpty()) {
// Adjusting Bounds
LatLngBounds.Builder builder = new LatLngBounds.Builder();
for (Marker m : markersList) {
builder.include(m.getPosition());
}
LatLngBounds bounds = builder.build();
CameraUpdate mCameraUpdate =
CameraUpdateFactory.newLatLngBounds(bounds, 2);
googleMap.animateCamera(mCameraUpdate);
}
From the error it looks like your markersList is empty. It needs to contain at least one point for LatLngBounds.Builder to work properly.
I m new to android app development.
I have WKT (POLYGON)
How to draw polygon on google map from wkt?
I try
String str;
ArrayList<String> coordinates = new ArrayList<String>();
str = tvwkt.getText().toString();
str = str.replaceAll("\\(", "");
str = str.replaceAll("\\)", "");
str = str.replaceAll("POLYGON", "");
str = str.replaceAll("POINT", "");
str = str.replaceAll(", ", ",");
str = str.replaceAll(" ", ",");
str = str.replaceAll(",,", ",");
String[] commatokens = str.split(",");
for (String commatoken : commatokens) {
coordinates.add(commatoken);
}
for (int i = 0; i < coordinates.size(); i++) {
String[] tokens = coordinates.get(i).split("\\s");
for (String token : tokens) {
listPoints.add(token);
}
}
PolygonOptions rectOptions = new PolygonOptions().addAll(listPoints).strokeColor(Color.BLUE).fillColor(Color.CYAN).strokeWidth(7);
polygon = mMap.addPolygon(rectOptions);
But its not work.
Hepl me please.
thanks.
This is a better aproach, for this sample WKT Polygon:
wkt = "POLYGON((-84.22800686845923 40.137783757219864,-82.71787050257508 33.66027041269767,-78.6190283330219 37.694486391034445,-84.22800686845923 40.137783757219864))";
We need to get the negative values, and also order correctly the lat/long
private LatLng[] getPolygonPoints() {
ArrayList<LatLng> points = new ArrayList<LatLng>();
Pattern p = Pattern.compile("(\\d*\\.\\d+)\\s(\\d*\\.\\d+)");
Matcher m = p.matcher(wkt);
String point;
while (m.find()) {
point = wkt.substring(m.start() - 1, m.end());
points.add(new LatLng(Double.parseDouble(point.split(" ")[1]), Double.parseDouble(point.split(" ")[0])));
}
return points.toArray(new LatLng[points.size()]);
}
And then draw the polygon like the last response:
public void drawPolygon() {
LatLng[] points = getPolygonPoints();
Polygon p = mMap.addPolygon(
new PolygonOptions()
.add(points)
.strokeWidth(7)
.fillColor(Color.CYAN)
.strokeColor(Color.BLUE)
);
//Calculate the markers to get their position
LatLngBounds.Builder b = new LatLngBounds.Builder();
for (LatLng point : points) {
b.include(point);
}
LatLngBounds bounds = b.build();
//Change the padding as per needed
CameraUpdate cu = CameraUpdateFactory.newLatLngBounds(bounds, 20, 20, 5);
mMap.animateCamera(cu);
}
I can do it.
Read LatLong from WKT and add to Array
private LatLng[] GetPolygonPoints(String polygonWkt) {
Bundle bundle = getIntent().getExtras();
wkt = bundle.getString("wkt");
ArrayList<LatLng> points = new ArrayList<LatLng>();
Pattern p = Pattern.compile("(\\d*\\.\\d+)\\s(\\d*\\.\\d+)");
Matcher m = p.matcher(wkt);
String point;
while (m.find()){
point = wkt.substring(m.start(), m.end());
points.add(new LatLng(Double.parseDouble(m.group(1)), Double.parseDouble(m.group(2))));
}
return points.toArray(new LatLng[points.size()]);
}
then draw polygon
public void Draw_Polygon() {
LatLng[] points = GetPolygonPoints(polygonWkt);
Polygon p = mMap.addPolygon(
new PolygonOptions()
.add(points)
.strokeWidth(7)
.fillColor(Color.CYAN)
.strokeColor(Color.BLUE)
);
//Calculate the markers to get their position
LatLngBounds.Builder b = new LatLngBounds.Builder();
for (LatLng point : points) {
b.include(point);
}
LatLngBounds bounds = b.build();
//Change the padding as per needed
CameraUpdate cu = CameraUpdateFactory.newLatLngBounds(bounds, 20,20,5);
mMap.animateCamera(cu);
}
finally
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
mMap.setMapType(MAP_TYPE_HYBRID);
mMap.getUiSettings().setRotateGesturesEnabled(false);
mMap.getUiSettings().setMapToolbarEnabled(false);
LatLng[] points = GetPolygonPoints(polygonWkt);
if (points.length >3){
Draw_Polygon();
}
else {
Add_Markers();
}
}
I'm trying to "inflate" my content from SQLite into Markers but the solution I took of here it's not working, and it's not throwing any information on Log.
I'm a bit new on this Marker stuff and SQLite
My code inside the Fragment:
SQLiteHelper dbHelper = new SQLiteHelper(getActivity());
pds = new ParksDataSource(dbHelper.db);
parks = pds.getAllParks();
List<Marker> markersList = new ArrayList<Marker>();
int i = 0;
Cursor cursor = db.rawQuery("SELECT * FROM " + SQLiteHelper.TABLE_PARKS,
null);
try {
while (cursor.moveToNext()) {
String[] latlong = cursor.getString(cursor.getColumnIndex(SQLiteHelper.COL_PARKS_COORDINATES)).split(",");
double latitude = Double.parseDouble(latlong[0]);
double longitude = Double.parseDouble(latlong[1]);
mark = new LatLng(latitude, longitude);
Marker mPark = mMap.addMarker(new MarkerOptions().position(mark)
.title(cursor.getString(cursor.getColumnIndex(SQLiteHelper.COL_PARKS_TITLE)))
.icon(BitmapDescriptorFactory.fromBitmap(writeTextOnDrawable(R.mipmap.ic_pin, cursor.getString(cursor.getColumnIndex(SQLiteHelper.COL_PARKS_FREE))))));
mPark.setTag(0);
markersList.add(mPark);
Log.d("HierParks", "Pin: " + i + ", " + latitude + "," + longitude + " - Park:" + cursor.getString(cursor.getColumnIndex(SQLiteHelper.COL_PARKS_TITLE)));
i++;
}
} finally {
cursor.close();
}
LatLngBounds.Builder builder = new LatLngBounds.Builder();
for (Marker m : markersList) {
builder.include(m.getPosition());
}`
Thank you for your time.
Finally I managed to fix it, hope this help someone.
My ParkDataSource:
public Cursor getAll() {
return db.rawQuery("SELECT * FROM " + SQLiteHelper.TABLE_PARKS,
null);
}
My Fragment:
SQLiteHelper dbHelper = new SQLiteHelper(getActivity());
pds = new ParksDataSource(dbHelper.db);
cursor = pds.getAll();
List<Marker> markersList = new ArrayList<Marker>();
int i = 0;
try {
while (cursor.moveToNext()) {
String[] latlong = cursor.getString(cursor.getColumnIndex(SQLiteHelper.COL_PARKS_COORDINATES)).split(",");
double latitude = Double.parseDouble(latlong[0]);
double longitude = Double.parseDouble(latlong[1]);
mark = new LatLng(latitude, longitude);
if (cursor.getString(cursor.getColumnIndex(SQLiteHelper.COL_PARKS_SLOTS)) == null){
Marker mPark = map.addMarker(new MarkerOptions().position(mark)
.title(cursor.getString(cursor.getColumnIndex(SQLiteHelper.COL_PARKS_TITLE)))
.icon(BitmapDescriptorFactory.fromBitmap(writeTextOnDrawable(R.mipmap.ic_pin, cursor.getString(cursor.getColumnIndex(SQLiteHelper.COL_PARKS_FREE))))));
mPark.setTag(0);
markersList.add(mPark);
}
i++;
}
} finally {
cursor.close();
}
LatLngBounds.Builder builder = new LatLngBounds.Builder();
for (Marker m : markersList) {
builder.include(m.getPosition());
}
I'm trying to implement a cluster marker on my map, and it is behaving a little strange, first, it shows me the cluster marker with the right number of markers, but when I zoom out to join other markers it generates another cluster marker which I don't know where it is coming from and why it is showing on the map, I`ll add some image to explain it better:
Here is the image with zoom in, as you can see, I have a cluster marker with 8 points and another one alone, so when I zoom out it should give me one clusterMarker with 9 points, but look what happens when I zoom out:
What that cluster marker with 7 points is doing there?
here is my code:
public class MapaViagem extends FragmentActivity implements ClusterManager.OnClusterClickListener<MyItem>, ClusterManager.OnClusterItemClickListener<MyItem> {
private GoogleMap googleMap;
private String rm_IdViagem;
private List<ClienteModel> mClienteModel = new ArrayList<ClienteModel>();
private List<EnderecoModel> mEnderecoModel = new ArrayList<EnderecoModel>();
private ArrayList<LatLng> coordList = new ArrayList<LatLng>();
private ArrayList<String> nomes = new ArrayList<String>();
private ViagemModel mViagemModel = new ViagemModel();
private ClusterManager<MyItem> mClusterManager;
private ProgressDialog dialog;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.maps);
try {
Bundle parametros = getIntent().getExtras();
rm_IdViagem = parametros.getString("id_viagem");
Repositorio ca = new Repositorio(this);
mViagemModel = ca.getViagemPorId(Integer.valueOf(rm_IdViagem));
Repositorio cl = new Repositorio(this);
mClienteModel = cl.getClientesViagem(Integer.valueOf(rm_IdViagem));
String waypoints = "waypoints=optimize:true";
String coordenadas = "";
if(mClienteModel != null) {
for (int i = 0; i < mClienteModel.size(); i++) {
Repositorio mRepositorio = new Repositorio(this);
mEnderecoModel = mRepositorio.getListaEnderecosDoCliente(Integer.valueOf(mClienteModel.get(i).getClientes_id()));
for (int j = 0; j < mEnderecoModel.size(); j++) {
// Loading map
initilizeMap();
// Changing map type
googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
// googleMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
// googleMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
// googleMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
// googleMap.setMapType(GoogleMap.MAP_TYPE_NONE);
// Showing / hiding your current location
googleMap.setMyLocationEnabled(true);
// Enable / Disable zooming controls
googleMap.getUiSettings().setZoomControlsEnabled(true);
// Enable / Disable my location button
googleMap.getUiSettings().setMyLocationButtonEnabled(true);
// Enable / Disable Compass icon
googleMap.getUiSettings().setCompassEnabled(true);
// Enable / Disable Rotate gesture
googleMap.getUiSettings().setRotateGesturesEnabled(true);
// Enable / Disable zooming functionality
googleMap.getUiSettings().setZoomGesturesEnabled(true);
float latitude = Float.parseFloat(mEnderecoModel.get(j).getLatitude());
float longitude = Float.parseFloat(mEnderecoModel.get(j).getLongitude());
coordenadas += "|" + latitude + "," + longitude;
nomes.add(mClienteModel.get(i).getNome());
coordList.add(new LatLng(latitude, longitude));
mClusterManager = new ClusterManager<MyItem>(MapaViagem.this, googleMap);
mClusterManager.setRenderer(new MyClusterRenderer(MapaViagem.this, googleMap, mClusterManager));
addItems(coordList, nomes);
googleMap.setOnCameraChangeListener(mClusterManager);
googleMap.setOnMarkerClickListener(mClusterManager);
mClusterManager.setOnClusterClickListener(this);
mClusterManager.setOnClusterItemClickListener(this);
mClusterManager.cluster();
googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(latitude, longitude), 5));
}
}
String sensor = "sensor=false";
String params = waypoints + coordenadas + "&" + sensor;
String output = "json";
String url = "https://maps.googleapis.com/maps/api/directions/" + output + "?" + params;
ReadTask downloadTask = new ReadTask();
downloadTask.execute(url);
}
} catch (Exception e) {
e.printStackTrace();
}
}
public class MyClusterRenderer extends DefaultClusterRenderer<MyItem> {
public MyClusterRenderer(Context context, GoogleMap map,
ClusterManager<MyItem> clusterManager) {
super(context, map, clusterManager);
}
#Override
protected void onBeforeClusterItemRendered(MyItem item, MarkerOptions markerOptions) {
super.onBeforeClusterItemRendered(item, markerOptions);
markerOptions.title(String.valueOf(item.getName()));
}
#Override
protected void onClusterItemRendered(MyItem clusterItem, Marker marker) {
super.onClusterItemRendered(clusterItem, marker);
//here you have access to the marker itself
}
#Override
protected boolean shouldRenderAsCluster(Cluster<MyItem> cluster) {
return cluster.getSize() > 1;
}
}
}
There seems to be an issue in this code:
coordenadas += "|" + latitude + "," + longitude; nomes.add(mClienteModel.get(i).getNome());
coordList.add(new LatLng(latitude, longitude));
mClusterManager = new ClusterManager<MyItem>(MapaViagem.this, googleMap);
mClusterManager.setRenderer(new MyClusterRenderer(MapaViagem.this, googleMap, mClusterManager));
addItems(coordList, nomes);
You should be adding these two things in there:
getMap().setOnCameraChangeListener(mClusterManager);
and
private void addItems() {
// Set some lat/lng coordinates to start with.
double lat = 51.5145160;
double lng = -0.1270060;
// Add ten cluster items in close proximity, for purposes of this example.
for (int i = 0; i < 10; i++) {
double offset = i / 60d;
lat = lat + offset;
lng = lng + offset;
MyItem offsetItem = new MyItem(lat, lng);
mClusterManager.addItem(offsetItem);
}
Here's an example from the documentation: https://developers.google.com/maps/documentation/android/utility/marker-clustering#simple