Frequently Asked Component Specific Questions
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TMS FMX WebGMapsUsing the TLocationSensor with ReverseGeocoding on Android
When using the TLocationSensor and you wish to do a reverse geocoding call from the OnLocationChanged event on Android, you always have to use a TThread.Queue around your code to avoid network exceptions ( for example: "Project ABC.apk raised exception class EJNIException with message ''android.os.NetworkOnMainThreadException''").
Example:
procedure TForm1.LocationSensor1LocationChanged(Sender: TObject;
const OldLocation, NewLocation: TLocationCoord2D);
begin
TThread.Queue(nil,
procedure
var
cp: String;
begin
TMSFMXWebGMapsReverseGeocoding1.Latitude := NewLocation.Latitude;
TMSFMXWebGMapsReverseGeocoding1.Longitude := NewLocation.Longitude;
TMSFMXWebGMapsReverseGeocoding1.LaunchReverseGeocoding;
cp := TMSFMXWebGMapsReverseGeocoding1.ResultAddress.PostalCode;
end
);
end;