startCaptcha method
使用注册参数开启验证
Implementation
void startCaptcha(Gt3RegisterData arg) {
Map<String, dynamic> argument = arg.toMap();
try {
_channel.invokeMethod('startCaptcha', argument);
} catch (e) {
String desc = flutterLog + e.toString();
Map<String, String> error = {"code": "-2", "description": desc};
_onError!(error);
}
}