B4J Question Googlemaps bug?

[Arnaud]

Hello,

Since 24-02-2023, I have problem with Google map library for all my project in B4j . the screen is white.

So, I have tested with the example project "GoogleMapDemo" to be sure that the problem is not my API key, and I have the same problem.

It seems that the problem is when the pane to show the map is big, the library doesn’t work....

I have done 2 examples with to size different, small size seems work fine, big size doesn’t work. I had not this problem before.

I use also "Private MarkerInfos As Map" to put different markers, and this doesn't work also now with small and big size of map. I don't know if these both problem are linked or not...


An idea about this please?

Many thanks

 

[DonManfred]

Upload a small project showing the problem.

Probably it is the ApiKey from Google. which is missing/wrong/not for this kind of api-request/not having billing account linked

 

[Johan Hormaza]

If it seems to be a problem with the GoogleMap JavaScript, I am also having that problem and it is not related to the API_Key

 

[RichardN]

#MeToo.....

This happened once before for no apparent reason with existing projects. I suspected that Google had dropped the API key if it had not been used for some time so I regenerated the API key and it appeared to fix the issue.... but not this time. No idea of the cause at the moment, all libs appear to be up to date.

My payment means (the one they never charge) is still in date on the API console.

What has changed?

 

[Johan Hormaza]

I'm trying to test an example from Google itself and it doesn't work.

 

[RichardN]

From trial & error setting the size of MainForm affects the map/white screen situation.

#Region  Project Attributes

                                                'values previously 3000x1000
    #MainFormWidth: 770           
    #MainFormHeight: 600
    
    'Values above 770w or 600h produce a white Google map
    
#End Region

 

[Johan Hormaza]

From trial & error setting the size of MainForm affects the map/white screen situation.

#Region  Project Attributes

                                                'values previously 3000x1000
    #MainFormWidth: 770          
    #MainFormHeight: 600
   
    'Values above 770w or 600h produce a white Google map
   
#End Region

What would be the ideal MainForm size?

 

[Arnaud]

From trial & error setting the size of MainForm affects the map/white screen situation.

#Region  Project Attributes

                                                'values previously 3000x1000
    #MainFormWidth: 770          
    #MainFormHeight: 600
   
    'Values above 770w or 600h produce a white Google map
   
#End Region

Yes, It seems that I have exactly the same result !

 

[Johan Hormaza]

How weird. What will be happening?
First time after several years working with Google Maps I have this problem

 

[RichardN]

@Johan Hormaza said:

What would be the ideal MainForm size?

I don't think there is a correct answer to that (although somebody my chip in with a suggestion). You may be working towards compatibility for all screen sizes or, as in my case, you simply have an app that has to look good maximised on my PC with a native 4k monitor.

 

[RichardN]

I cannot pin this Google Maps problem down further. I suspect the data coming via the API has been subtly changed and the jGoogleMaps library is no longer interpreting it correctly.

I am sure @Erel will take a look at it after the weekend.

 

[Johan Hormaza]

Even in a WebView it doesn't work either

 

[Erel]

I've tested with several versions including this updated branch: https://github.com/dlsc-software-consulting-gmbh/GMapsFX
I'm getting the same problem.

I will recheck it in a few days.

 

[Erel]

After more tests I got it working with OpenJDK 19 + OpenJFX 17.

https://www.b4x.com/b4j/files/jdk-19.0.2.7z

This is not a perfect solution as it fails when packaged as a standalone package.

 

[Erel]

Now working in standalone package: https://www.b4x.com/android/forum/threads/jgooglemaps-library.56744/#content