what is The command for removing specific overlay item ?
if here is my code of the added items
public void addOverLays(){
String [] coordinates = {"30.084262490272522","31.33625864982605" ,"30.084123015403748", "51.5002" , "-0.1262","31.337149143218994"};
double lat = 30.084262490272522, lat2 = 51.5002,lat3=29.987091422080994;
double log = 31.33625864982605, log2 = -0.1262,log3=31.43909454345703;
p = new GeoPoint((int) (lat * 1E6), (int) (log * 1E6));
p2 = new GeoPoint( (int) (lat2 * 1e6), (int) (log2 * 1e6));
p3=new GeoPoint( (int) (lat3 * 1e6), (int) (log3 * 1e6));
mapOverlays = mapView.getOverlays();
drawable = this.getResources().getDrawable(R.drawable.ballon);
drawable2 = this.getResources().getDrawable(R.drawable.ballon);
drawable3 = this.getResources().getDrawable(R.drawable.ballon);
itemizedOverlay = new HelloItemizedOverlay(drawable,this);
itemizedOverlay2 = new HelloItemizedOverlay(drawable2,this);
itemizedOverlay3 = new HelloItemizedOverlay(drawable3,this);
OverlayItem overlayitem = new OverlayItem(p, "Cairo", " over1");
OverlayItem over2 = new OverlayItem(p2, "ulm", "over2");
OverlayItem over3 = new OverlayItem(p3, "offff", "over3");
itemizedOverlay.addOverlay(overlayitem);
mapOverlays.add(itemizedOverlay);
itemizedOverlay2.addOverlay(over2);
mapOverlays.add(itemizedOverlay2);
itemizedOverlay3.addOverlay(over3);
mapOverlays.add(itemizedOverlay3);
Replace add() with remove():
mapView.getOverlays().remove(<putYourOverlayHere>);
mapView.invalidate();
Related
I followed one of the tutarial about google maps. Unfortunately it is using google maps v1. Now I'm working on an old android application upgrading it from the Google API v1 to v2. How can I do this on Google Maps API v2? Need same help here.
public class PlacesMapActivity extends MapActivity {
PlacesList nearPlaces;
MapView mapView;
List<Overlay> mapOverlays;
AddItemizedOverlay itemizedOverlay;
GeoPoint geoPoint;
MapController mc;
double latitude;
double longitude;
OverlayItem overlayitem;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_places_map);
Intent i = getIntent();
String user_latitude = i.getStringExtra("user_latitude");
String user_longitude = i.getStringExtra("user_longitude");
nearPlaces = (PlacesList) i.getSerializableExtra("near_places");
mapView = (MapView) findViewById(R.id.mapView);
mapView.setBuiltInZoomControls(true);
mapOverlays = mapView.getOverlays();
geoPoint = new GeoPoint((int) (Double.parseDouble(user_latitude) * 1E6),
(int) (Double.parseDouble(user_longitude) * 1E6));
Drawable drawable_user = this.getResources()
.getDrawable(R.drawable.mark_red);
itemizedOverlay = new AddItemizedOverlay(drawable_user, this);
overlayitem = new OverlayItem(geoPoint, "Your Location",
"That is you!");
itemizedOverlay.addOverlay(overlayitem);
mapOverlays.add(itemizedOverlay);
itemizedOverlay.populateNow();
Drawable drawable = this.getResources()
.getDrawable(R.drawable.mark_blue);
itemizedOverlay = new AddItemizedOverlay(drawable, this);
mc = mapView.getController();
int minLat = Integer.MAX_VALUE;
int minLong = Integer.MAX_VALUE;
int maxLat = Integer.MIN_VALUE;
int maxLong = Integer.MIN_VALUE;
if (nearPlaces.results != null) {
// loop through all the places
for (Place place : nearPlaces.results) {
latitude = place.geometry.location.lat; // latitude
longitude = place.geometry.location.lng; // longitude
geoPoint = new GeoPoint((int) (latitude * 1E6),
(int) (longitude * 1E6));
overlayitem = new OverlayItem(geoPoint, place.name,
place.vicinity);
itemizedOverlay.addOverlay(overlayitem);
// calculating map boundary area
minLat = (int) Math.min( geoPoint.getLatitudeE6(), minLat );
minLong = (int) Math.min( geoPoint.getLongitudeE6(), minLong);
maxLat = (int) Math.max( geoPoint.getLatitudeE6(), maxLat );
maxLong = (int) Math.max( geoPoint.getLongitudeE6(), maxLong );
}
mapOverlays.add(itemizedOverlay);
// showing all overlay items
itemizedOverlay.populateNow();
}
mapView.getController().zoomToSpan(Math.abs( minLat - maxLat ), Math.abs( minLong - maxLong ));
mc.animateTo(new GeoPoint((maxLat + minLat)/2, (maxLong + minLong)/2 ));
mapView.postInvalidate();
}
#Override
protected boolean isRouteDisplayed() {
return false;
}
}
You may want to check out this post - Android Maps API v1 to v2. It seems to have the same question you have.
I am new to Open Street Map map. I want to put the marker on map where i Tapped. I want to delete previous marker also. Please help me.
Thanks in advance. Here is my code
Overlay touchOverlay = new Overlay(this) {
ItemizedIconOverlay<OverlayItem> anotherItemizedIconOverlay = null;
#Override
protected void draw(Canvas arg0, MapView arg1, boolean arg2) {
}
#Override
public boolean onSingleTapConfirmed(final MotionEvent e,
final MapView mapView) {
Projection proj = mapView.getProjection();
GeoPoint loc = (GeoPoint) proj.fromPixels((int) e.getX(),
(int) e.getY());
String longitude = Double
.toString(((double) loc.getLongitudeE6()) / 1000000);
String latitude = Double
.toString(((double) loc.getLatitudeE6()) / 1000000);
ArrayList<OverlayItem> overlayArray = new ArrayList<OverlayItem>();
OverlayItem mapItem = new OverlayItem("", "", new GeoPoint(
(((double) loc.getLatitudeE6()) / 1000000),
(((double) loc.getLongitudeE6()) / 1000000)));
Drawable marker = null;
mapItem.setMarker(marker);
overlayArray.add(mapItem);
if (anotherItemizedIconOverlay == null) {
anotherItemizedIconOverlay = new ItemizedIconOverlay<OverlayItem>(
getApplicationContext(), overlayArray, null);
mapView.getOverlays().add(anotherItemizedIconOverlay);
mapView.invalidate();
} else {
mapView.getOverlays().remove(anotherItemizedIconOverlay);
mapView.invalidate();
anotherItemizedIconOverlay = new ItemizedIconOverlay<OverlayItem>(
getApplicationContext(), overlayArray, null);
mapView.getOverlays().add(anotherItemizedIconOverlay);
}
return true;
}
};
Finally i get solution of this problem. here is my answer.
#Override
public boolean onSingleTapConfirmed(MotionEvent e, MapView mapView) {
Projection proj = mapView.getProjection();
p = (GeoPoint) proj.fromPixels((int) e.getX(), (int) e.getY());
proj = mapView.getProjection();
loc = (GeoPoint) proj.fromPixels((int) e.getX(), (int) e.getY());
String longitude = Double
.toString(((double) loc.getLongitudeE6()) / 1000000);
String latitude = Double
.toString(((double) loc.getLatitudeE6()) / 1000000);
Toast toast = Toast.makeText(getApplicationContext(),
"Longitude: "
+ longitude + " Latitude: " + latitude, Toast.LENGTH_SHORT);
toast.show();
return true;
}
private void addLocation(double lat, double lng) {
// ---Add a location marker---
p = new GeoPoint((int) (lat * 1E6), (int) (lng * 1E6));
Drawable marker = getResources().getDrawable(
android.R.drawable.star_big_on);
int markerWidth = marker.getIntrinsicWidth();
int markerHeight = marker.getIntrinsicHeight();
marker.setBounds(0, markerHeight, markerWidth, 0);
ResourceProxy resourceProxy = new DefaultResourceProxyImpl(
getApplicationContext());
myItemizedOverlay = new MyItemizedOverlay(marker, resourceProxy);
List<Overlay> listOfOverlays = mapView.getOverlays();
listOfOverlays.clear();
listOfOverlays.add(myItemizedOverlay);
mapView.invalidate();
}
i want to display my location and destination location at map. the problem is that the destination location always point at same location even if i change another destination long and lat...
here is the code
protected void tampilkanPosisikeMap(Location newLocation) {
List<Overlay> overlays = mapView.getOverlays();
if (overlays.size() > 0) {
for (Iterator iterator = overlays.iterator(); iterator.hasNext();) {
iterator.next();
iterator.remove();
}
}
GeoPoint geopoint = new GeoPoint(
(int) (newLocation.getLatitude() * 1E6), (int) (newLocation
.getLongitude() * 1E6));
GeoPoint myposition = geopoint;
Location locationA = new Location("point A");
Location locationB = new Location("point B");
locationA.setLatitude(geopoint.getLatitudeE6() / 1E6);
locationA.setLongitude(geopoint.getLongitudeE6() / 1E6);
Drawable icon1 = getResources().getDrawable(R.drawable.user);
icon1.setBounds(0, 0, icon1.getIntrinsicWidth(), icon1
.getIntrinsicHeight());
MyItemizedOverlay overlay1 = new MyItemizedOverlay(icon1, this);
OverlayItem item1 = new OverlayItem(geopoint, "Posisi Anda", "Lat:"
+ locationA.getLatitude() + "\nLng:" + locationA.getLongitude());
overlay1.addItem(item1);
mapView.getOverlays().add(overlay1);
String lat2,longi2;
String nama_rs;String alamat_rs;
nama_rs = getIntent().getExtras().getString("namarsakit");
alamat_rs = getIntent().getExtras().getString("alamatrsakit");
lat2 = getIntent().getExtras().getString("lat");
longi2 = getIntent().getExtras().getString("longi");
Double lintang_rs = Double.parseDouble(lat2);
Double bujur_rs = Double.parseDouble(longi2);
GeoPoint geopoint1 = new GeoPoint(
(int) (lintang_rs * 1E6),
(int) (bujur_rs * 1E6));
locationB.setLatitude(geopoint1.getLatitudeE6() / 1E6);
locationB.setLongitude(geopoint1.getLongitudeE6() / 1E6);
DecimalFormat formatData = new DecimalFormat("#.#");
float distance = (float) locationA.distanceTo(locationB) / 1000;
String jarak;
jarak = String.valueOf(formatData.format(distance));
Drawable icon = getResources().getDrawable(R.drawable.marker); //
icon.setBounds(0, 0, icon.getIntrinsicWidth(), icon
.getIntrinsicHeight());
MyItemizedOverlay overlay = new MyItemizedOverlay(icon, this); //
OverlayItem item = new OverlayItem(geopoint1, nama_rs, //
alamat_rs
+ "\n\nJarak dari Posisi Anda : " + jarak + " km");
overlay.addItem(item);
mapView.getOverlays().add(overlay);
Toast.makeText(MapDetailActivity.this,"nama = "+nama_rs+"lat tujuan= "+lintang_rs+"long tujuan = "+bujur_rs, Toast.LENGTH_SHORT).show();
mapView.getController().animateTo(geopoint1);
}
this is the destination code from above :
String lat2,longi2;
String nama_rs;String alamat_rs;
nama_rs = getIntent().getExtras().getString("namarsakit");
alamat_rs = getIntent().getExtras().getString("alamatrsakit");
lat2 = getIntent().getExtras().getString("lat");
longi2 = getIntent().getExtras().getString("longi");
Double lintang_rs = Double.parseDouble(lat2);
Double bujur_rs = Double.parseDouble(longi2);
GeoPoint geopoint1 = new GeoPoint(
(int) (lintang_rs * 1E6),
(int) (bujur_rs * 1E6));
locationB.setLatitude(geopoint1.getLatitudeE6() / 1E6);
locationB.setLongitude(geopoint1.getLongitudeE6() / 1E6);
DecimalFormat formatData = new DecimalFormat("#.#");
float distance = (float) locationA.distanceTo(locationB) / 1000;
String jarak;
jarak = String.valueOf(formatData.format(distance));
Drawable icon = getResources().getDrawable(R.drawable.marker); //
icon.setBounds(0, 0, icon.getIntrinsicWidth(), icon
.getIntrinsicHeight());
MyItemizedOverlay overlay = new MyItemizedOverlay(icon, this); //
OverlayItem item = new OverlayItem(geopoint1, nama_rs, //
alamat_rs
+ "\n\nJarak dari Posisi Anda : " + jarak + " km");
overlay.addItem(item);
mapView.getOverlays().add(overlay);
Toast.makeText(MapDetailActivity.this,"nama = "+nama_rs+"lat tujuan= "+lintang_rs+"long tujuan = "+bujur_rs, Toast.LENGTH_SHORT).show();
mapView.getController().animateTo(geopoint1);
For You to be able to show your Current location you must tap on to GPS location provider or Network Location provider. Looking at your code I cannot see any of this. Please note on emulator DDMS will default to a specific location. unless you supply one yourself
how can i make a loop for my overlay items android !! and what if i want to remove one of them by using mapView.getOverlays().remove(p); !! its doesn't work why ?? here is the code
enter code here
public void addOverLays(){
String [] coordinates = {"31.216487288475037","29.932637214660645" ,"30.084123015403748", "51.5002" , "-0.1262","31.337149143218994"};
double lat = 30.084686279296875,lat2 = 51.5002,lat3=29.987091422080994;
double log = 31.33642494678493, log2 = -0.1262,log3=31.43909454345703;
p = new GeoPoint((int) (lat * 1E6), (int) (log * 1E6));
p2 = new GeoPoint( (int) (lat2 * 1e6), (int) (log2 * 1e6));
p3=new GeoPoint( (int) (lat3 * 1e6), (int) (log3 * 1e6));
mapOverlays = mapView.getOverlays();
drawable = this.getResources().getDrawable(R.drawable.pushpin);
drawable2 = this.getResources().getDrawable(R.drawable.ballon);
drawable3 = this.getResources().getDrawable(R.drawable.ballon);
itemizedOverlay = new HelloItemizedOverlay(drawable,this);
itemizedOverlay2 = new HelloItemizedOverlay(drawable2,this);
itemizedOverlay3 = new HelloItemizedOverlay(drawable3,this);
OverlayItem overlayitem = new OverlayItem(p, "Cairo", " over1");
OverlayItem over2 = new OverlayItem(p2, "ulm", "over2");
OverlayItem over3 = new OverlayItem(p3, "offff", "over3");
itemizedOverlay.addOverlay(overlayitem);
mapOverlays.add(itemizedOverlay);
itemizedOverlay2.addOverlay(over2);
mapOverlays.add(itemizedOverlay2);
itemizedOverlay3.addOverlay(over3);
mapOverlays.add(itemizedOverlay3);
mc.setZoom(17);
mc.animateTo(p);
}
Adding overlays does work in your code - if you mean you don't see any changes, then you have to call MapView.invalidate() to have it re-draw itself with the newly added overlays. The same is true when you remove an overlay.
public void addOverLays(){
String [] coordinates = {"30.084262490272522","31.33625864982605" ,"30.084123015403748", "51.5002" , "-0.1262","31.337149143218994"};
double lat = 30.084262490272522, lat2 = 51.5002,lat3=30.084123015403748;
double log = 31.33625864982605, log2 = -0.1262,log3=31.337149143218994;
p = new GeoPoint((int) (lat * 1E6), (int) (log * 1E6));
p2 = new GeoPoint( (int) (lat2 * 1e6), (int) (log2 * 1e6));
p3 = new GeoPoint( (int) (lat3 * 1E6), (int) (log3 * 1E6));
mapOverlays = mapView.getOverlays();
drawable = this.getResources().getDrawable(R.drawable.icon);
drawable2 = this.getResources().getDrawable(R.drawable.pushpin);
drawable3 = this.getResources().getDrawable(R.drawable.ballon);
itemizedOverlay = new HelloItemizedOverlay(drawable,this);
itemizedOverlay2 = new HelloItemizedOverlay(drawable2,this);
itemizedOverlay3 = new HelloItemizedOverlay(drawable3,this);
OverlayItem overlayitem = new OverlayItem(p, "Cairo", " over1");
OverlayItem over2 = new OverlayItem(p2, "ulm", "over2");
OverlayItem over3 = new OverlayItem(p3, "offff", "over3");
itemizedOverlay.addOverlay(overlayitem);
mapOverlays.add(itemizedOverlay);
itemizedOverlay2.addOverlay(over2);
mapOverlays.add(itemizedOverlay2);
itemizedOverlay2.addOverlay(over3);
mapOverlays.add(itemizedOverlay3);
Why can't I add 3 items due to
p = new GeoPoint((int) (lat * 1E6), (int) (log * 1E6));
p2 = new GeoPoint( (int) (lat2 * 1e6), (int) (log2 * 1e6));
p3 = new GeoPoint( (int) (lat3 * 1E6), (int) (log3 * 1E6));
can't make 1E6 & 1e6 what other I have to do?!!
you might have a casting issue, hard to tell. Try using this utility method:
public static GeoPoint calculateGeoPoint(double latitude, double longitude) {
Double latE6 = latitude * 1E6;
Double lngE6 = longitude * 1E6;
return new GeoPoint(latE6.intValue(), lngE6.intValue());
}
It's worked reliably for me in tested production code.