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Cannot apply source type to destination type (JNIEnv.GetArray <Java.Lang.Object> (pudis.Handle);)

I am trying to receive SMS in my application.

There is a BroadcastReceiver class in my project, and I get a runtime error:

System.InvalidCastException: Cannot pass from source type to destination type. at at (cluster class) .__ castclass_with_cache object (object, intptr, intptr) on Android.Runtime.JNIEnv.CopyArray (intptr, Java.Lang.Object []) <0x002a3> at at Android.Runtime.JNIEnv.GetArray (intptr ) <0x0021f>
in Messages.SMSBroadcastReceiver.OnReceive (Android.Content.Context, Android.Content.Intent) [0x0005f] in C: \ Users \ Jase \ Documents \ Projects \ Messages \ Messages \ SMSBroadcastReceiver.cs: 36 in Android.Content.BroadcastReceiver. n_OnReceive_Landroid_content_Context_Landroid_content_Intent_ (intptr, intptr, intptr, intptr) [0x00019] in / Users / builder / data / lanes / monodroid -mlion-monodroid-4.20-series / ba9bbbdd / source / monodroid / sndc / androiddr /src/generated/Android.Content.BroadcastReceiver.cshaps34 at at (dynamic shell method) object.145a0c82-0de6-4c2c-90a0-3654436a06c3 (intptr, intptr, intptr, intptr)

Here is the code I'm using:

using System;
using System.Text;

using Android.App;
using Android.OS;
using Android.Content;
using Android.Runtime;
using Android.Util;
using Android.Widget;
using Android.Telephony;

using Environment = System.Environment;

namespace Messages
{
    [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: " + intent.Action);

            if (intent.Action != IntentAction)
                return;

            var bundle = intent.Extras;

            if (bundle == null)
                return;

            var pdus = bundle.Get("pdus");


            // ********** This is the error line at runtime ****************
            var castedPdus = JNIEnv.GetArray<Java.Lang.Object>(pdus.Handle);

            var messages = new SmsMessage[castedPdus.Length];
            var stringBuilder = new StringBuilder();

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

                messages[i] = SmsMessage.CreateFromPdu(bytes);

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

            Toast.MakeText(context, stringBuilder.ToString(), ToastLength.Long).Show();
        }
    }
}

I tried to find a solution for a while and have been looking for many hours, but none of the existing solutions to this error worked. I do not understand. Can someone please help shed some light on this?


:

Bundle not null: Bundle[mParcelledData.dataSize=256]
PDUS: [[B@5s294833
PDUS Handle: 2065454
Cannot cast from source type to destination type.   at (wrapper castclass) object:__castclass_with_cache (object,intptr,intptr)
  at Android.Runtime.JNIEnv.CopyArray[Object] (IntPtr src, Java.Lang.Object[] dest) [0x00078] in /Users/builder/data/lanes/monodroid-mlion-monodroid-4.20-series/ba9bbbdd/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.cs:946 
  at Android.Runtime.JNIEnv.GetArray[Object] (IntPtr array_ptr) [0x00053] in /Users/builder/data/lanes/monodroid-mlion-monodroid-4.20-series/ba9bbbdd/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.cs:1211 
  at Java.Lang.Object.ToArray[Object] () [0x00000] in /Users/builder/data/lanes/monodroid-mlion-monodroid-4.20-series/ba9bbbdd/source/monodroid/src/Mono.Android/src/Java.Lang/Object.cs:338 
  at Java.Lang.Object.op_Explicit (Java.Lang.Object value) [0x00008] in /Users/builder/data/lanes/monodroid-mlion-monodroid-4.20-series/ba9bbbdd/source/monodroid/src/Mono.Android/src/Java.Lang/Object.cs:499 
  at Messages.SMSBroadcastReceiver.OnReceive (Android.Content.Context context, Android.Content.Intent intent) [0x000ba] in c:\Users\Jase\Documents\Projects\Messages\Messages\SMSBroadcastReceiver.cs:52

, , . ( ) 60 Google, -. , , , , , , , .

:

//                    var castedPdus = JNIEnv.GetObjectArrayElement(pdus.Handle, 0);
//                    Object castedPdus = (Object)bundle.Get("pdus");
//                    var castedPdus = JNIEnv.GetArray<Java.Lang.Object>(pdus.Handle);

.

, , " ", " [] ". , . , " ", , , "". SMS Xamarin , . , - . , . .

+4
3

, Java Android Studio, , , .

SmsReceiver.java:

package com.your.app;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.SmsMessage;
import android.util.Log;
import android.widget.Toast;

public class SmsReceiver extends BroadcastReceiver {
    private static final String SMS_RECEIVED = "android.provider.Telephony.SMS_RECEIVED";

    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().equals(SMS_RECEIVED)) {
            Bundle bundle = intent.getExtras();

            if (bundle != null) {
                // get sms objects
                Object[] pdus = (Object[]) bundle.get("pdus");
                if (pdus.length == 0) {
                    return;
                }
                // large message might be broken into many
                SmsMessage[] messages = new SmsMessage[pdus.length];
                StringBuilder sb = new StringBuilder();

                for (int i = 0; i < pdus.length; i++) {
                    messages[i] = SmsMessage.createFromPdu((byte[]) pdus[i]);
                    sb.append(messages[i].getMessageBody());
                }

                String sender = messages[0].getOriginatingAddress();
                Log.d("SNDR", sender);
                String message = sb.toString();

                Toast.makeText(context, message, Toast.LENGTH_SHORT).show();

                // prevent any other broadcast receivers from receiving broadcast
                abortBroadcast();
            }
        }
    }
}

AndroidManifest.xml.

AndroidManifest.xml:

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

<application
    android:allowBackup="true"
    android:icon="@drawable/icon"
    android:label="@string/app_name"
    android:theme="@style/AppTheme">
    <activity
        android:name=".MainActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <receiver android:name="com.your.app.SmsReceiver" android:enabled="true">
        <intent-filter android:priority="2147483647">
            <action android:name="android.provider.Telephony.SMS_RECEIVED" />
        </intent-filter>
    </receiver>
</application>
+1

, , Java, pdu Android 5.0.

Java.Lang.Object rawPdus = intent.Extras.Get("pdus");
int length = JNIEnv.GetArrayLength(rawPdus.Handle);

if (length < 1)
    return;

var pdus = JNIEnv.GetArrayItem<byte[]>(rawPdus.Handle, 0);

var msg = SmsMessage.CreateFromPdu(pdus);

, . Bugzilla Issue 26674.

+1

Here is another alternative:

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

    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));
        }

    }
}
0
source

Source: https://habr.com/ru/post/1568116/

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