Question

我试图用Xamarin在Android上处理新的短信。我使用真实设备，而不是虚拟设备。我的处理程序是：

public class SmsBroadcastReceiver : BroadcastReceiver
{
...
}

我通过以下方式在主要活动中以编程方式注册接收器：

RegisterReceiver(new SmsBroadcastReceiver(), new IntentFilter("android.provider.Telephony.SMS_RECEIVED"));

在我的代码中，我为意图10k +添加优先级（没有尝试过这个）。我也试过通过配置注册。接收器不会发射。但是，如果我注册HEADSET_PLUG事件，它将毫无问题地开火。权限是：

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

Answer 1

你能试试吗：

[BroadcastReceiver]
[Android.App.IntentFilter(new []{ SMS_RECEIVER })]

public class SmsBroadcastReceiver : BroadcastReceiver
{
    private const string SMS_RECEIVER = "android.provider.Telephony.SMS_RECEIVED";
    ...
}

顺便说一下，我还没有测试过，但我相信它会起作用。请让我知道它是怎么回事（：

Answer 2

试试这个应该可以正常工作：

[BroadcastReceiver(Enabled = true, Label = "SMS Receiver")]
[IntentFilter(new[] { "android.provider.Telephony.SMS_RECEIVED" })] 
public class SMSBroadcastReceiver : BroadcastReceiver
{

    private const string Tag = "SMSBroadcastReceiver";
    private const string IntentAction = "android.provider.Telephony.SMS_RECEIVED"; 

    public override void OnReceive(Context context, Intent intent)
    {
        Log.Info(Tag, "Intent received: " + intent.Action);

        if (intent.Action != IntentAction) return;

        SmsMessage[] messages=Telephony.Sms.Intents.GetMessagesFromIntent (intent);

        var sb = new StringBuilder();

        for (var i = 0; i < messages.Length; i++)
        {

            sb.Append(string.Format("SMS From: {0}{1}Body: {2}{1}", messages[i].OriginatingAddress,
                Environment.NewLine,messages[i].MessageBody));
        }

    }
}

使用Xamarin跟踪新的SMS消息

2 个答案: