Android Question Draw a polygon GoogleMap Help!

[Acro Soluciones]

Hi, this is my first program with B4A and i think it is great. I followed the google map tutorial and now i have it running in my device without problems. Now i would like to draw a polygon when the user click over the map. How can i do this? Thanks

 

[eurojam]

Welcome in the forum,
it is something like this:

Sub DrawPolygon (PointList As List)
    Dim GoogleMapsExtras1 As GoogleMapsExtras
    Dim polygonoptions1 As PolygonOptions
    polygonoptions1.Initialize
    polygonoptions1.FillColor=Colors.ARGB(150,255,255,0)
    polygonoptions1.AddPoints(PointList)
    polygonoptions1.StrokeColor=Colors.DarkGray
    polygonoptions1.StrokeWidth=3
    Dim pg As Polygon = GoogleMapsExtras1.AddPolygon(gmap, polygonoptions1)
End Sub

The Pointlist is a List containing objects of the type LatLng. You can collect them for example from the click event on the mapfraqment.

Sub MapFragment1_LongClick (mPoint As LatLng)
...'put the latLng into a list
end sub

 

[Acro Soluciones]

Hi, thanks for your answer, i advance a lot in my program, but i still cant draw polygons.
Here:
Dim GoogleMapsExtras1 AsGoogleMapsExtras
Dim polygonoptions1 AsPolygonOptions

The program says: Unknown type GoogleMapsExtras.

Thanks

 

[Erel]

GoogleMapsExtras is a library. https://www.b4x.com/search?query=GoogleMapsExtras

 

[Acro Soluciones]

Yes, i tried to download the zip but the system does not allowed me to. I think i need to buy a license.
Thanks

 

[s4agtech]

Hi, i downloaded the library and use the code, i still dont know how can i draw a polygon clicking on map. Thanks