I need to make something similar to Waatsapp share location
Where I can show user the accuracy such as 10 meter as well as blue circle blinking on current location.
How to do that please
You can use an animated gif as the marker icon to simulate the blue circle.
The location accuracy depends on the service that is used to get the current location. The built-in functionality unfortunately does not provide the accuracy of the result.
but I found that most of the application using location, are using similar blue dot which google call it "Your Location" it is a standard.
Do you know a good location sensor other then the default coming with delphi.
Unfortunately the blue dot which you are referring to is not supported in the Google Maps API at this time. This is why I suggested to simulate the behaviour with an image.
We are not aware of any other location sensors for Delphi at this time.
We'll have to investigate if it is possible to implement an alternative location sensor in a future version of TMS FMX WebGMaps.