如何在xamarin中阅读sms otp。具有本地html的表单webview

<uses-permission android:name="android.permission.READ_SMS" />
<uses-permission android:name="android.permission.RECEIVE_SMS" />

[BroadcastReceiver(Enabled = true, Exported = true)]
[IntentFilter(new[] { "android.provider.Telephony.SMS_RECEIVED" }, Priority = (int)IntentFilterPriority.HighPriority)]
public class SmsReceiver : BroadcastReceiver
{
    public override void OnReceive(Context context, Intent intent)
    {
        if (intent.Action == "android.provider.Telephony.SMS_RECEIVED")
        {
            var bundle = intent.Extras;
            if (bundle != null)
            {
                var pdus = bundle.Get("pdus");
                var castedPdus = JNIEnv.GetArray<Java.Lang.Object>(pdus.Handle);
                var msgs = new SmsMessage[castedPdus.Length];

                for (int i = 0; i < msgs.Length; i++)
                {
                    var bytes = new byte[JNIEnv.GetArrayLength(castedPdus[i].Handle)];
                    JNIEnv.CopyArray(castedPdus[i].Handle, bytes);
                    msgs[i] = SmsMessage.CreateFromPdu(bytes);
                    var messageBody = msgs[i].MessageBody;

                    // 解析短信内容，提取OTP

                    // 将OTP传递给WebView控件
                    var webView = YourWebViewControl; // 替换为你的WebView控件实例
                    webView.LoadUrl("javascript:document.getElementById('otpInput').value = '" + otp + "';");
                }
            }
        }
    }
}

var smsReceiver = new SmsReceiver();
var intentFilter = new IntentFilter("android.provider.Telephony.SMS_RECEIVED");
Application.Context.RegisterReceiver(smsReceiver, intentFilter);

<input type="text" id="otpInput" />