i want to show the location indicator when the map is loaded and add a marker whenever the map is clicked but none of these seem to work !
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final MapFragment mapFragment = (MapFragment) getSupportFragmentManager().findFragmentById(R.id.mapFragment);
assert mapFragment != null;
mapFragment.getMapAsync(new OnMapInitListener() {
#Override
public void onMapReady(MapView mapView) {
OnlineManager.getInstance().enableOnlineMapStreaming(true);
PositionManager.getInstance().startPositionUpdating();
PositionManager.getInstance().enableRemotePositioningService();
mpView=mapView;
mpView.addMapGestureListener(new MapGestureAdapter() {
#Override
public boolean onMapClicked(final MotionEvent e, final boolean isTwoFingers) {
MapMarker marker = new MapMarker(new GeoCoordinates(PositionManager.getInstance().getLastKnownPosition().getLongitudeAccuracy(),PositionManager.getInstance().getLastKnownPosition().getLatitudeAccuracy()));
mpView.addMapObject(marker);
return true;
}
});
}
#Override
public void onMapError(int error, String info) {}
});
}
You’re trying to create new Marker with getLongitudeAccuracy() and getLatitudeAccuracy(). You need to use geo coordinates!
If you want to add the marker to the position of last known gps signal you can use this code:
MapMarker marker = new MapMarker(PositionManager.getInstance().getLastKnownPosition().getCoordinates())
But as there can be no known position at that time it can result in no marker added. So be sure you have location turned on and strong signal. Based on your example it would make more sense to add marker to the position you clicked on. For that purpose use this code:
mpView.addMapGestureListener(new MapGestureAdapter() {
#Override
public boolean onMapClicked(final MotionEvent e, final boolean isTwoFingers) {
MapMarker marker = new MapMarker(mpView.geoCoordinatesFromPoint(e.getX(), e.getY()));
mpView.addMapObject(marker);
return true;
}
});
Related
I am working on the google map project for navigation. and creating and displaying many polygons.
But when I try to click near the marker it always detects the marker point. So I would like to know that is there any property there where I can set the marker clickable radius?
I show that is available in the JavaScript but I could not find any lead regarding Android.
Any help or reference much appreciated.
Anyway you can use a workaround:
disable marker clicks response;
detect touch on map determine nearest marker by yourself.
Of course, you need to store all of the markers in that case.
While the first point is simple:
mGoogleMap.setOnMarkerClickListener(new GoogleMap.OnMarkerClickListener() {
#Override
public boolean onMarkerClick(Marker marker) {
return true;
}
});
the second is not: even if "empty" onMarkerClick() return true markers will always intercept this event.
To get rid of that you can use approach with "touchable wrapper" like in this answer within custom MapFragment that can intercept touch events before they goes to MapFragment. When you get touch event you can get screen coordinates of touch. Then you need to find marker with minimal distance from touch location (you also need to convert marke's 'LatLng' position into screen flat coordinates via Projection.toScreenLocation() method). If founded marker within clickable radius you can process custom onMarkerClick event, if not - process polygon click.
Something like that:
Class TouchableWrapper - the core of approach:
public class TouchableWrapper extends FrameLayout {
private static final int CLICK_RADIUS_IN_PIXELS = 25;
private GoogleMap mGoogleMap;
private List<Marker> mMarkers;
public TouchableWrapper(Context context) {
super(context);
}
public void setGoogleMapAndMarkers(GoogleMap googleMap, List<Marker> markers) {
mGoogleMap = googleMap;
mMarkers = markers;
}
#Override
public boolean dispatchTouchEvent(MotionEvent event) {
if (mGoogleMap == null) return super.dispatchTouchEvent(event);
int screenX = (int) event.getX();
int screenY = (int) event.getY();
if ((event.getAction() & MotionEvent.ACTION_MASK) == MotionEvent.ACTION_DOWN) {
// find marker nearest to touch position
Projection projection = mGoogleMap.getProjection();
Marker nearestMarker = null;
int minDistanceInPixels = Integer.MAX_VALUE;
for (Marker marker : mMarkers) {
Point markerScreen = projection.toScreenLocation(marker.getPosition());
int distanceToMarker = (int) Math.sqrt((screenX - markerScreen.x) * (screenX - markerScreen.x)
+ (screenY - markerScreen.y) * (screenY - markerScreen.y));
if (distanceToMarker < minDistanceInPixels) {
minDistanceInPixels = distanceToMarker;
nearestMarker = marker;
}
}
// "drop" nearest marker if it is not within radius
if (minDistanceInPixels > CLICK_RADIUS_IN_PIXELS) {
nearestMarker = null;
}
if (nearestMarker != null) {
// decide what to process (marker click or polygon click) here
Toast.makeText(getContext(),
"Clicked on marker " + nearestMarker.getTitle(), Toast.LENGTH_LONG).show();
}
}
return super.dispatchTouchEvent(event);
}
}
You can adjust clickable radius via CLICK_RADIUS_IN_PIXELS constant value.
Customized MapFragmet that uses TouchableWrapper class:
public class TouchableMapFragment extends MapFragment {
public View originalContentView;
public TouchableWrapper touchView;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState) {
originalContentView = super.onCreateView(inflater, parent, savedInstanceState);
touchView = new TouchableWrapper(getActivity());
touchView.addView(originalContentView);
return touchView;
}
#Override
public View getView() {
return originalContentView;
}
}
'MainActivity' that uses TouchableMapFragment:
public class MainActivity extends AppCompatActivity implements OnMapReadyCallback {
private static final String TAG = MainActivity.class.getSimpleName();
static final LatLng MARKER_1 = new LatLng(50.450311, 30.523730);
static final LatLng MARKER_2 = new LatLng(50.4502, 30.52365);
private GoogleMap mGoogleMap;
private TouchableMapFragment mMapFragment;
private List<Marker> mMarkers = new ArrayList<>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mMapFragment = (TouchableMapFragment) getFragmentManager()
.findFragmentById(R.id.map_fragment);
mMapFragment.getMapAsync(this);
}
#Override
public void onMapReady(GoogleMap googleMap) {
mGoogleMap = googleMap;
// store markers
Marker marker = mGoogleMap.addMarker(new MarkerOptions()
.position(MARKER_1)
.title("Marker 1"));
mMarkers.add(marker);
marker = mGoogleMap.addMarker(new MarkerOptions()
.position(MARKER_2)
.title("Marker 2"));
mMarkers.add(marker);
// pass stored markers to "touchable wrapper"
mMapFragment.touchView.setGoogleMapAndMarkers(mGoogleMap, mMarkers);
// disable marker click processing
mGoogleMap.setOnMarkerClickListener(new GoogleMap.OnMarkerClickListener() {
#Override
public boolean onMarkerClick(Marker marker) {
return true;
}
});
mGoogleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(MARKER_1, 14));
}
}
and 'MainActivity' layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".activities.MainActivity">
<fragment
android:id="#+id/map_fragment"
android:name="<your.package.name>.TouchableMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</RelativeLayout>
Also, in your case you need to pass List<Polygon> to TouchableWrapper like List<Marker> in example above and process polygon click in its dispatchTouchEvent(MotionEvent event) too.
In my google maps fragment,
I used this to add my item as clusters
mClusterManager = new ClusterManager<ContactInfo>(getActivity(), googleMap);
mClusterManager.setOnClusterClickListener(this);
mClusterManager.addItem(myItem);
Now, I can manage to set onClusterClickListener by
mClusterManager.setOnClusterClickListener(this);
By using the above code, I can detect when I click those clusters,
However, when I click those seperate markers, this does not work.
How to detect those seperate markers I added to clusterManager?
setOnClusterClickListener is invoked when a Cluster is tapped.
You also need to set setOnClusterItemClickListener which is
Sets a callback that's invoked when an individual ClusterItem is
tapped. Note: For this listener to function, the ClusterManager must
be added as a click listener to the map.
And be sure to implement ClusterManager.OnClusterItemClickListener<T extends ClusterItem>
Try This custom Class.
private class PersonRenderer extends DefaultClusterRenderer<Person> {
public PersonRenderer() {
super(MainActivity.this, mMap, mClusterManager1);
}
#Override
protected void onBeforeClusterItemRendered(Person person, MarkerOptions markerOptions) {
Debug.e("call", "onBeforeClusterItemRendered");
// Draw a single person.
// Set the info window to show their name.
}
#Override
protected boolean shouldRenderAsCluster(Cluster<Person> cluster) {
Debug.e("call", "shouldRenderAsCluster");
return cluster.getSize() > 1;
}
#Override
protected void onClusterItemRendered(Person clusterItem, Marker marker) {
super.onClusterItemRendered(clusterItem, marker);
Debug.e("call", "onClusterItemRendered");
}
}
onClusterClick
#Override
public boolean onClusterClick(Cluster<Person> cluster) {
Debug.e("call", "onClusterClick");
// Show a toast with some info when the cluster is clicked.
String firstName = cluster.getItems().iterator().next().name;
// Toast.makeText(this, cluster.getSize() + " (including " + firstName + ")", Toast.LENGTH_SHORT).show();
// Zoom in the cluster. Need to create LatLngBounds and including all the cluster items
// inside of bounds, then animate to center of the bounds.
// Create the builder to collect all essential cluster items for the bounds.
LatLngBounds.Builder builder = LatLngBounds.builder();
for (ClusterItem item : cluster.getItems()) {
builder.include(item.getPosition());
}
// Get the LatLngBounds
final LatLngBounds bounds = builder.build();
// Animate camera to the bounds
try {
mMap.animateCamera(CameraUpdateFactory.newLatLngBounds(bounds, 100));
} catch (Exception e) {
e.printStackTrace();
}
return true;
}
onClusterInfoWindowClick
#Override
public void onClusterInfoWindowClick(Cluster<Person> cluster) {
Debug.e("call", "onClusterInfoWindowClick");
// Does nothing, but you could go to a list of the users.
// clickedCluster = cluster;
}
onClusterItemClick
#Override
public boolean onClusterItemClick(Person item) {
// Does nothing, but you could go into the user's profile page, for example.
Debug.e("call", "onClusterItemClick");
clickedClusterItem = item;
return false;
}
onClusterItemInfoWindowClick
#Override
public void onClusterItemInfoWindowClick(Person item) {
// Does nothing, but you could go into the user's profile page, for example.
Debug.e("call", "onClusterItemInfoWindowClick");
}
How to Set background image of a custom google map marker?
this question is not about the marker mentioned in the above question link
its about the background of a land
As we set background image to google map makers
is there anyway to set a background image to highlight a special Continent using android?
any help or a reference
Instantiate a new GroundOverlayOptions object.
Specify the image as a BitmapDescriptor.
Set the position of the image using one of the available methods:
position(LatLng location, float width, float height)
position(LatLng location, float width)
positionFromBounds(LatLngBounds bounds)
Set any optional properties, such as transparency, as desired.
Call GoogleMap.addGroundOverlay() to add the image to the map.
Refer this and this
You need to draw a polygon by selecting some points on map.
Example code :
public class MainActivity extends FragmentActivity implements
OnMapClickListener,
OnMapLongClickListener,
OnMarkerClickListener {
private GoogleMap myMap;
Location myLocation;
boolean markerClicked;
PolygonOptions polygonOptions;
Polygon polygon;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FragmentManager manager = getSupportFragmentManager();
SupportMapFragment mapFragment = (SupportMapFragment) manager
.findFragmentById(R.id.map);
myMap = mapFragment.getMap();
myMap.setMyLocationEnabled(true);
myMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
myMap.setOnMapClickListener(this);
myMap.setOnMapLongClickListener(this);
myMap.setOnMarkerClickListener(this);
markerClicked = false;
}
#Override
public void onMapLongClick(LatLng point)
{
myMap.addMarker(new MarkerOptions()
.position(point).title(point.toString()));
markerClicked = false;
}
#Override
public boolean onMarkerClick(Marker marker)
{
if(markerClicked)
{
if(polygon != null)
{
polygon.remove();
polygon = null;
}
polygonOptions.add(marker.getPosition());
polygonOptions.strokeColor(Color.BLACK);
polygonOptions.strokeWidth(5);
polygonOptions.fillColor(0x884d4d4d);
polygon = myMap.addPolygon(polygonOptions);
marker.remove();
}
else
{
if(polygon != null)
{
polygon.remove();
polygon = null;
}
polygonOptions = new PolygonOptions().add(marker.getPosition());
markerClicked = true;
marker.remove();
}
return true;
}
#Override
public void onMapClick(LatLng point)
{
Toast.makeText(getApplicationContext(),
"Long Press to select locations", Toast.LENGTH_LONG).show();
}
}
using this fragment
fragment
android:id="#+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
class="com.google.android.gms.maps.SupportMapFragment" />
Also read the official Documentation here.
Replace codes in getInfoContents with getInfoWindow. The difference between them is getInfoContents wraps your View in ViewGroup with default background.
try this one
I am trying to display a list of venues on Google Maps in Android, which can be clustered on zoom out and on zoom in unclustered.
WHEN UNCLUSTERED, an individual item info window can be opened to look at that venue details, and clicked to open a separate activity.
I am using this https://developers.google.com/maps/documentation/android-api/utility/marker-clustering?hl=en
I am doing this :
Getting Map Fragment in onResume()
#Override
public void onResume() {
super.onResume();
// Getting map for the map fragment
mapFragment = new SupportMapFragment();
mapFragment.getMapAsync(new VenuesInLocationOnMapReadyCallback(getContext()));
// Adding map fragment to the view using fragment transaction
FragmentManager fragmentManager = getChildFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.add(R.id.venues_in_location_support_map_fragment_container, mapFragment);
fragmentTransaction.commit();
}
MapReadyCallback :
private class VenuesInLocationOnMapReadyCallback implements OnMapReadyCallback {
private static final float ZOOM_LEVEL = 10;
private final Context context;
public VenuesInLocationOnMapReadyCallback(Context context) {
this.context = context;
}
#Override
public void onMapReady(final GoogleMap map) {
// Setting up marker clusters
setUpClusterManager(getContext(), map);
// Allowing user to select My Location
map.setMyLocationEnabled(true);
// My location button handler to check the location setting enable
map.setOnMyLocationButtonClickListener(new GoogleMap.OnMyLocationButtonClickListener() {
#Override
public boolean onMyLocationButtonClick() {
promptForLocationSetting(getContext(), map);
// Returning false ensures camera try to move to user location
return false;
}
});
map.getUiSettings().setMyLocationButtonEnabled(true);
// Disabling map toolbar
map.getUiSettings().setMapToolbarEnabled(false);
}
}
Setting up Cluster Manager
private void setUpClusterManager(final Context context, GoogleMap map) {
// Declare a variable for the cluster manager.
ClusterManager<LocationMarker> mClusterManager;
// Position the map.
LatLng wocLatLng = new LatLng(28.467948, 77.080685);
map.moveCamera(CameraUpdateFactory.newLatLngZoom(wocLatLng, VenuesInLocationOnMapReadyCallback.ZOOM_LEVEL));
// Initialize the manager with the context and the map.
mClusterManager = new ClusterManager<LocationMarker>(context, map);
// Point the map's listeners at the listeners implemented by the cluster
// manager.
map.setOnCameraChangeListener(mClusterManager);
map.setOnMarkerClickListener(mClusterManager);
// Add cluster items (markers) to the cluster manager.
addLocations(mClusterManager);
// Setting custom cluster marker manager for info window adapter
map.setInfoWindowAdapter(mClusterManager.getMarkerManager());
mClusterManager.getMarkerCollection().setOnInfoWindowAdapter(new MyLocationInfoWindowAdapter());
map.setOnInfoWindowClickListener(new MyMarkerInfoWindowClickListener());
}
Adding Cluster items (markers)
private void addLocations(ClusterManager<LocationMarker> mClusterManager) {
for (int i = 0; i < venuesDetailsJsonArray.length(); i++) {
try {
JSONObject thisVenueJson = (JSONObject) venuesDetailsJsonArray.get(i);
JSONObject thisVenueLocationJson = thisVenueJson.getJSONObject("location");
LocationMarker thisVenueMarker = new LocationMarker(thisVenueLocationJson.getDouble("latitude"),
thisVenueLocationJson.getDouble("longitude"), thisVenueJson.getInt("id"));
mClusterManager.addItem(thisVenueMarker);
} catch (JSONException e) {
e.printStackTrace();
}
}
}
MyLocationInfoWIndowAdapter
private class MyLocationInfoWindowAdapter implements GoogleMap.InfoWindowAdapter {
#Override
public View getInfoWindow(Marker marker) {
return null;
}
#Override
public View getInfoContents(Marker marker) {
Log.e("getInfoContent", marker.toString());
View venueInfoWindow = ((LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE))
.inflate(R.layout.venues_map_item, null);
return venueInfoWindow;
}
}
MarkerInfoWindowClickListener
private class MyMarkerInfoWindowClickListener implements GoogleMap.OnInfoWindowClickListener {
#Override
public void onInfoWindowClick(Marker marker) {
// TODO: This is the click listener, that means all the info must be added as Tag to Marker
Intent venueDetailsDisplayIntent = new Intent(getActivity(), VenueDetailsDisplayActivity.class);
startActivity(venueDetailsDisplayIntent);
}
}
Location Marker class
public class LocationMarker implements ClusterItem{
private final LatLng mPosition;
private final int id;
public LocationMarker(double lat, double lng, int id) {
mPosition = new LatLng(lat, lng);
this.id = id;
}
#Override
public LatLng getPosition() {
return mPosition;
}
public int getId() {
return this.id;
}
}
The way that I am understanding the flow is this :
onResume --> fragmentTransaction --> VenuesInLocationOnMapReadyCallback --> setUpClusterManager --> addLocations (This adds Custom markers)
Marker Click --> MyLocationInfoWindowAdapter --> getInfoContents(Marker marker)
Marker Info Window click --> MyMarkerInfoWindowClickListener
According to my Understanding of process (I could be wrong):
I am adding an id to my custom LocationMarker when Adding markers in addLocations function.
I need to display different info in infoWindow for different markers.
InfoWindow is displayed using MyLocationInfoWindowAdapter-->getInfoContents(Marker marker)
But here is the rub, I can't find a way to figure out which marker has been clicked upon so that I can set appropriate info in InfoWindow.
On Click on opened InfoWindow I need to open a separate Activity. A/C to me InfoWindow click is handled using MyMarkerInfoWindowClickListener-->onInfoWindowClick(Marker marker) Here too I am having the same problem (I can't figure out which marker's info window has been clicked).
I am trying to add some image button in my marker info.
Though the buttons are added in the view but i cat not click on them.
When I try to click it clicks on the whole view.
My code us given below.
MainActivity.java
private GoogleMap googleMap;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final RelativeLayout base;
base = (RelativeLayout) findViewById(R.id.base);
googleMap = ((MapFragment) getFragmentManager().findFragmentById(
R.id.map)).getMap();
try {
initilizeMap(); // Loading map
} catch (Exception e) {
Log.d("asdfadfadf", "asdfasdf");
}
googleMap.setMyLocationEnabled(true);
//googleMap.clear();
IconGenerator i = new IconGenerator(getBaseContext());
i.setStyle(IconGenerator.STYLE_BLUE);
Bitmap tt = i.makeIcon("asdf");
LatLng myLocation = new LatLng(22.899171, 89.500186);
Marker myLocMarker = googleMap.addMarker(new MarkerOptions()
.position(myLocation)
.icon(BitmapDescriptorFactory.fromBitmap(tt))
.title("sssss"));
googleMap.setInfoWindowAdapter(new InfoWindowAdapter() {
#Override
public View getInfoWindow(Marker mk) {
// TODO Auto-generated method stub
return null;
}
#Override
public View getInfoContents(Marker arg0) {
// TODO Auto-generated method stub
ImageButton set,from,favor;
View view = getLayoutInflater().inflate(R.layout.marker_info,null);
set = (ImageButton) view.findViewById(R.id.imageButtonDestination);
from = (ImageButton) view.findViewById(R.id.imageButtonFrom);
favor = (ImageButton) view.findViewById(R.id.imageButtonFavourite);
set.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
Log.d("sssssssssssssssss", "sssssssssssssssss");
}
});
return view;
}
});
}
/**
* function to load map. If map is not created it will create it for you
* */
private void initilizeMap() {
if (googleMap == null) {
Toast.makeText(getApplicationContext(),
"Sorry! unable to create maps", Toast.LENGTH_SHORT)
.show();
}
if (googleMap == null) {
googleMap = ((MapFragment) getFragmentManager().findFragmentById(
R.id.map)).getMap(); // check if map is created successfully or not
}
}
#Override
protected void onResume() {
super.onResume();
initilizeMap();
}
}
don't know what to do.
Thanks in advance.
You can't add click listeners to the Marker's InfoWindow as it's not a real view. But a Bitmap that gets rendered from you layout.
From Google Docs: https://developers.google.com/maps/documentation/android/marker#info_windows
Note: The info window that is drawn is not a live view. The view is
rendered as an image (using View.draw(Canvas)) at the time it is
returned. This means that any subsequent changes to the view will not
be reflected by the info window on the map. To update the info window
later (e.g., after an image has loaded), call showInfoWindow().
Furthermore, the info window will not respect any of the interactivity
typical for a normal view such as touch or gesture events. However you
can listen to a generic click event on the whole info window as
described in the section below.
Set GoogleMap.OnInfoWindowClickListener() to your map, implement the interface. You get the marker passed to you, call you action form there:
googleMap.setOnInfoWindowClickListener(new GoogleMap.OnInfoWindowClickListener() {
#Override public void onInfoWindowClick(Marker marker) {
//do your thing here
}
});
I don't understand very well what you require, but according understanding is something of a click on an image to add to the map (a marker). if so may try this:
googleMap.setOnMarkerClickListener(new OnMarkerClickListener() {
#Override
public boolean onMarkerClick(Marker arg0) {
//Your code when you do click
return false;
}
});
I hope help you, and Sorry for my english :(