B4A Library GoogleMapsExtras

GoogleMapsExtras is an ongoing project to implement more of the Google Maps Android v2 classes in Basic4Android.

Currently the library allows you to create these objects:

• BitmapDescriptor
• BitmapDescriptorFactory
• Circle
• CircleOptions
• GroundOverlay
• InfoWindowAdapter
• MarkerOptions
• Point
• Projection
• OnInfoWindowClickListener
• OnMarkerDragListener
• OnMyLocationChangeListener
• Polygon
• TileOverlay
• VisibleRegion

Tutorials for each object will be uploaded to the Google Maps Android v2 tutorial thread.

Martin.

 

[scrat]

Markers are always on top of others layers
zindex of the markers is defined by latitude. Lower latitude ==> greater zindex.

 

[warwound]

Is there any way to detect all necessary tiles have been loaded after you fire the AnimateCamera3 method?

https://developers.google.com/andro...ndroid/gms/maps/GoogleMap.OnMapLoadedCallback

GoogleMapsExtras has a method:

SetOnMapLoadedCallback (GoogleMap1 As GoogleMap, OnMapLoadedCallback1 As OnMapLoadedCallback)
Sets a callback that's invoked when the map has finished rendering.

 

[JackKirk]

GoogleMapsExtras has a method:

SetOnMapLoadedCallback (GoogleMap1 As GoogleMap, OnMapLoadedCallback1 As OnMapLoadedCallback)
Sets a callback that's invoked when the map has finished rendering.

Martin,

Many thanks - after running up a few dead ends of my own creation I was eventually able to work out how to detect completion of camera animation and map rendering.

 

[JackKirk]

Not sure whether this is a Google Maps or Google Maps Extra question...

If there any way to determine the screen dimensions of a Google Map marker - i.e. a "standard" marker as created by the AddMarker or AddMarker2 methods?

Thanks in anticipation...

 

[warwound]

If there any way to determine the screen dimensions of a Google Map marker - i.e. a "standard" marker as created by the AddMarker or AddMarker2 methods?

Not that i know of.
The Marker, BitmapDescriptor and BitmapDescriptorFactory don't have any methods to get the icon dimensions.

 

[Leni Berry]

how to get current lat,lon from this library?

 

[Erel]

GoogleMap.MyLocation returns the current location.

 

[Leni Berry]

GoogleMap.MyLocation returns the current location.

tq erel, solved...

i put gmap.MyLocationEnabled=True, and then waiting with timer_tick until gmap.MyLocation.IsInitialized=True

if gmap.MyLocation.IsInitialized=True then

latnya=gmap.MyLocation.Latitude
longnya=gmap.MyLocation.Longitude

end if

 

[s4agtech]

Hi, i have a problem. I would like the user to draw a polygon clicking on the screen and when the polygon "closes" a dialog appear. I only can draw polygons sending the points "hardcoded". How can the user draw a polygon by clicken? Is there any example?
Thanks

 

[Almora]

I solved the problem.

 

[Ohanian]

@warwound

can you add other method/events like :

setOnGroundOverlayClickListener
OnCameraIdleListener
OnGroundOverlayClickListener
OnIndoorStateChangeListener

Thanks in advance

 

[DonManfred]

setOnGroundOverlayClickListener

Where did you get this ? It is not listed on https://developer.android.com
Same for OnCameraIdleListener, OnGroundOverlayClickListener

Only the OnIndoorStateChangeListener is listed there...

 

[Ohanian]

Where did you get this ? It is not listed on https://developer.android.com
Same for OnCameraIdleListener, OnGroundOverlayClickListener

Only the OnIndoorStateChangeListener is listed there...

From here :
https://developers.google.com/android/reference/com/google/android/gms/maps/GoogleMap

 

[DonManfred]

The search on the developer site does not work good then i guess...

I tried to search for all of them but only found one

 

[Blueforcer]

I get an error when i try to compile this:

Dim OnMyLocationChangeListener1 As OnMyLocationChangeListener
    OnMyLocationChangeListener1.Initialize("OnMyLocationChangeListener1")
    gmapextras.SetOnMyLocationChangeListener(gmap, OnMyLocationChangeListener1)

gmapextras.SetOnMyLocationChangeListener(gmap, On
javac 1.8.0_25
src\the\walk\home.java:458: error: cannot find symbol
mostCurrent._gmapextras.SetOnMyLocationChangeListener((com.google.android.gms.maps.GoogleMap)(mostCurrent._gmap.getObject()),(com.google.android.gms.maps.GoogleMap.OnMyLocationChangeListener)(_onmylocationchangelistener1.getObject()));
^
symbol: class google
location: class com

i use the "new" googlemap library from here:
https://www.b4x.com/android/forum/threads/google-maps.63930/

 

[Erel]

Does it compile properly without these lines?

 

[Blueforcer]

yep. the app works without errors then

 

[Blueforcer]

It seems that every GooglemapExtra function failed with this error.
same with

gmapextras.SetBuildingsEnabled(gmap,True)

and i tested it with a completly new project, and there it works. but i dont see the mistake...

-same librariea in both projects
- same manifest

 

[Erel]

Do you have a class or module named com?

 

[Blueforcer]

wow...really? xD
yes i have.....thanks i will try it later