Android Question [SOLVED] Google map and truck icon for my position

yfleury

Active Member
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Longtime User
Hi every body
I need to show on google map a truck icon for my position right on the blue dot and follow it.

I try that
B4X: 
Public Sub LocationChanged(Location1 As Location)
    gmap.AddMarker3(gmap.MyLocation.Latitude, gmap.MyLocation.Longitude,"", LoadBitmap( File.DirAssets, "truck.png"))

End Sub

But the truck icon is duplicate as infinite.

Can you help me to the right way?
 
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yfleury

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Longtime User
DonManfred said:
You are adding a new marker on each locationchange. What do you expect?
Create one marker and change the position of this marker in the location changed event
Click to expand...
I do some research
I find that but is not working

in sub Globals
B4X: 
    Private MapAdresses As MapFragment
    Private gmap As GoogleMap
    Public TracteurIcon As Marker

in Public Sub LocationChanged(Location1 As Location)
B4X: 
        Dim latLnt As LatLng
        latLnt.Initialize(Location1.Latitude, Location1.Longitude)
        TracteurIcon.Position=latLnt

in Sub MapAdresses_Ready
B4X: 
    Dim LatLng1 As LatLng
    LatLng1.Initialize(40,-71)
    TracteurIcon = gmap.AddMarker3(LatLng1.Latitude, LatLng1.Longitude,"", (LoadBitmap( File.DirAssets, "tracteur-vert1.png")))

The tracteurIcon is not show
 
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yfleury

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Licensed User
Longtime User
Erel said:
Is it visible if you comment the code in LocationChanged sub?
Click to expand...
Before I comment the code in LocationChanged sub, I change the refresh in gps1.start
B4X: 
Public Sub StartGps
    If gpsStarted = False Then
        GPS1.Start( 0,0)
        gpsStarted = True
    End If
End Sub

I comment TracteurIcon = gmap.........
and is not visible

Some where in my code I have a gmap.clear after a TracteurIcon is set. Is it right I need to add a marker (TracteurIcon) again?
 
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