public void GoToSettings()
        {
            Intent intent       = new Intent(Settings.ActionApplicationDetailsSettings);
            string package_name = "OwnLink.fsin.com";
            var    uri          = Uri.FromParts("package", package_name, null);

            intent.SetData(uri);
            MainActivity.instance.StartActivity(intent);

            /*string manufacturer =  DeviceInfo.Manufacturer;
             *
             * Intent intent = new Intent();
             *
             * if ("Xiaomi".Equals(manufacturer))
             * {
             *  //intent.SetComponent(new ComponentName("com.miui.securitycenter", "com.miui.permcenter.autostart.AutoStartManagementActivity"));
             *  intent.SetComponent(new ComponentName("com.miui.securitycenter", "com.miui.permcenter.permissions.AppPermissionsEditorActivity"));
             * }
             * else if ("oppo".Equals(manufacturer))
             * {
             *  intent.SetComponent(new ComponentName("com.coloros.safecenter", "com.coloros.safecenter.permission.startup.StartupAppListActivity"));
             * }
             *
             * MainActivity.instance.StartActivity(intent);*/
            //StartActivity(intent);
        }