android - Xamarin.Android:在 SMS Delivered Broadcast Receiver 中检测 SMS

Question

在我的 Xamarin.Android 应用程序中，我使用 SmsManager 类发送短信。我还使用 PendingIntent 和 BroadcastReceiver 获取传递状态。
一切正常，除了在调用 SMSDeliveredReceiver.OnReceive 时我无法判断发送了哪个 SMS。假设我发送了两条消息，我只知道其中一条已发送。我需要知道发送了哪条 SMS 以进行进一步处理。请告诉我如何在 SMS 和 Delivery 之间建立桥梁。

到目前为止，这是我的代码:

private PendingIntent piSent, piDelivered;
private BroadcastReceiver _smsSentBroadcastReceiver, _smsDeliveredBroadcastReceiver;

void SetUp()
{
    piSent = PendingIntent.GetBroadcast(this, 0, new Intent("SMS_SENT"), 0);
    piDelivered = PendingIntent.GetBroadcast(this, 0, new Intent("SMS_DELIVERED"), 0);

    _smsSentBroadcastReceiver = new SMSSentReceiver();
    _smsDeliveredBroadcastReceiver = new SMSDeliveredReceiver();

    RegisterReceiver(_smsSentBroadcastReceiver, new IntentFilter("SMS_SENT"));
    RegisterReceiver(_smsDeliveredBroadcastReceiver, new IntentFilter("SMS_DELIVERED"));

}

void Send(string number, string message)
{
    SmsManager.Default.SendTextMessage(q.Number, null, q.Message, piSent, piDelivered);
}

[BroadcastReceiver(Exported = true)]
public class SMSDeliveredReceiver : BroadcastReceiver
{
    public override void OnReceive(Context context, Intent intent)
    {
        Toast.MakeText(Application.Context, "SMSDeliveredReceiver.OnReceive", ToastLength.Short).Show();
        switch ((int)ResultCode)
        {
            case (int)Result.Ok:
                Toast.MakeText(Application.Context, "SMS Delivered", ToastLength.Short).Show();
                break;
            case (int)Result.Canceled:
                Toast.MakeText(Application.Context, "SMS not delivered", ToastLength.Short).Show();
                break;
            default:
                Toast.MakeText(Application.Context, ResultCode.ToString(), ToastLength.Short).Show();

                break;
        }
    }

}

Answer 1

使用Intent 在您的SendTextMessage 方法中传递数据，当您的SMSDeliveredReceiver.OnReceive 被调用时，您可以知道哪个SMS 被传递intent.GetStringExtra("电话")。

这是完整的代码，它运行良好:

[Activity(Label = "SMSDemo", MainLauncher = true, Icon = "@drawable/icon")]
public class MainActivity : Activity
{
    private static string ACTION_SENT_SMS = "ACTION_SENT_SMS";

    private PendingIntent piSentd;
    SMSDeliveredReceiver mReceiver;

    protected override void OnCreate(Bundle bundle)
    {
        base.OnCreate(bundle);
        SetContentView (Resource.Layout.Main);
        Button button = FindViewById<Button>(Resource.Id.button1);

        button.Click += (sender, e) =>
         {
             sendGroupSMS();
         };

        mReceiver = new SMSDeliveredReceiver();
        RegisterReceiver(mReceiver, new IntentFilter(ACTION_SENT_SMS));
    }

    protected override void OnDestroy()
    {
        base.OnDestroy();
        UnregisterReceiver(mReceiver);
    }

    void sendGroupSMS()
    {
        List<string> phones = new List<string>();
        phones.Add("1*****2");
        phones.Add("1*****8");
        phones.Add("1*****9");

        SmsManager smsMgr = SmsManager.Default;
        foreach(string phone in phones)
        {
            Log.Debug("TAG", "Start sending sms to the phone " + phone);
            Intent intent = new Intent(ACTION_SENT_SMS);
            intent.PutExtra("phone", phone);

            piSentd = PendingIntent.GetBroadcast(this, phone.GetHashCode(), intent, PendingIntentFlags.UpdateCurrent);
            SmsManager.Default.SendTextMessage(phone, null, "Test by York", piSentd, null);
        }

    }
}

[BroadcastReceiver(Exported = true)]
public class SMSDeliveredReceiver : BroadcastReceiver
{
    public override void OnReceive(Context context, Intent intent)
    {
        string phone = intent.GetStringExtra("phone");
        switch ((int)ResultCode)
        {
            case (int)Result.Ok:
                Toast.MakeText(Application.Context, "SMS Delivered" + phone + " success.", ToastLength.Short).Show();
                break;
            case (int)Result.Canceled:
                Toast.MakeText(Application.Context, "SMS not delivered", ToastLength.Short).Show();
                break;
            default:
                Toast.MakeText(Application.Context, ResultCode.ToString(), ToastLength.Short).Show();
                break;
        }
    }

}