如何使用Xamarin.Forms在安卓设备上检测收到的彩信？

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

using Android.Content;

[BroadcastReceiver(Enabled = true, Label = "MMS Receiver")]
[IntentFilter(new[] { "android.provider.Telephony.WAP_PUSH_DELIVER" })]
public class MmsReceiver : BroadcastReceiver
{
    public override void OnReceive(Context context, Intent intent)
    {
        // 处理收到的彩信信息
        // 可以通过intent获取彩信相关信息
    }
}

var receiver = new MmsReceiver();
var filter = new IntentFilter("android.provider.Telephony.WAP_PUSH_DELIVER");
filter.AddDataType("application/vnd.wap.mms-message");
this.RegisterReceiver(receiver, filter);