failed to fetch map URL certificate error

[DanialV]

My Map doesn't load due to certificate verification is there any way to disable it? I found some solution however I don't know how to apply them
here is the solution which I found but I don't know how to use that.

_client = new HttpClient();
_client.badCertificateCallback = (X509Certificate cert, String host, int port) => true;

Error log:
I/flutter (23416): The following FetchFailure was thrown NetworkImageWithRetry failed to load
I/flutter (23416): https://my map url:
I/flutter (23416): FetchFailure(
I/flutter (23416): attemptCount: 1
I/flutter (23416): httpStatusCode: null
I/flutter (23416): totalDuration: 0:00:02.896710
I/flutter (23416): originalException: HandshakeException: Handshake error in client (OS Error:
I/flutter (23416): CERTIFICATE_VERIFY_FAILED: unable to get local issuer certificate(handshake.cc:363))
I/flutter (23416): )

[DanialV]

I solve the issue with this issue Override HttpClient globally