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androidservicesmsalarmforceclose

Illegal Argument Exception: Invalid message body when sending SMS

I'm attempting to create a service which sends a text message containing current wifi usage however I'm continually getting an error stating "Illegal Argument Exception: Invalid message body".

Any suggestions?

SOURCE: 

public class Alarm extends Service {

    @Override
    public void onCreate() {

        // TODO Auto-generated method stub

    }

    @Override
    public IBinder onBind(Intent intent) {

        // TODO Auto-generated method stub

        return null;

    }

    @Override
    public void onStart(Intent intent, int startId) {

        // TODO Auto-generated method stub

        super.onStart(intent, startId);


        String info = "";
        String sms = info;

        info += "Monthly Wifi Data Usage Amount:\t";
        info += ("\tReceived: " + TrafficStats.getTotalRxBytes() + " bytes / "
                + TrafficStats.getTotalRxPackets() + " packets\n");
        info += ("\tTransmitted: " + TrafficStats.getTotalTxBytes()
                + " bytes / " + TrafficStats.getTotalTxPackets() + " packets\n");

        SmsManager smsManager = SmsManager.getDefault();
        smsManager.sendTextMessage("9545555555", null, sms, null, null);    

    }

    @Override
    public boolean onUnbind(Intent intent) {

        // TODO Auto-generated method stub

        return super.onUnbind(intent);

    }

}

LOGCAT:

06-12 15:53:42.395: E/AndroidRuntime(29664): FATAL EXCEPTION: main
06-12 15:53:42.395: E/AndroidRuntime(29664): java.lang.RuntimeException: Unable to start service com.example.wifimonitor.Alarm@428fbb90 with Intent { flg=0x4 cmp=com.example.wifimonitor/.Alarm (has extras) }: java.lang.IllegalArgumentException: Invalid message body
06-12 15:53:42.395: E/AndroidRuntime(29664):    at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2549)
06-12 15:53:42.395: E/AndroidRuntime(29664):    at android.app.ActivityThread.access$2000(ActivityThread.java:139)
06-12 15:53:42.395: E/AndroidRuntime(29664):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1321)
06-12 15:53:42.395: E/AndroidRuntime(29664):    at android.os.Handler.dispatchMessage(Handler.java:99)
06-12 15:53:42.395: E/AndroidRuntime(29664):    at android.os.Looper.loop(Looper.java:137)
06-12 15:53:42.395: E/AndroidRuntime(29664):    at android.app.ActivityThread.main(ActivityThread.java:4918)
06-12 15:53:42.395: E/AndroidRuntime(29664):    at java.lang.reflect.Method.invokeNative(Native Method)
06-12 15:53:42.395: E/AndroidRuntime(29664):    at java.lang.reflect.Method.invoke(Method.java:511)
06-12 15:53:42.395: E/AndroidRuntime(29664):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1004)
06-12 15:53:42.395: E/AndroidRuntime(29664):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:771)
06-12 15:53:42.395: E/AndroidRuntime(29664):    at dalvik.system.NativeStart.main(Native Method)
06-12 15:53:42.395: E/AndroidRuntime(29664): Caused by: java.lang.IllegalArgumentException: Invalid message body
06-12 15:53:42.395: E/AndroidRuntime(29664):    at android.telephony.SmsManager.sendTextMessage(SmsManager.java:119)
06-12 15:53:42.395: E/AndroidRuntime(29664):    at com.example.wifimonitor.Alarm.onStart(Alarm.java:59)
06-12 15:53:42.395: E/AndroidRuntime(29664):    at android.app.Service.onStartCommand(Service.java:450)
06-12 15:53:42.395: E/AndroidRuntime(29664):    at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2532)
06-12 15:53:42.395: E/AndroidRuntime(29664):    ... 10 more

EDIT AFTER FIRST RESPONSE:

    @Override
    public void onCreate() {

        // TODO Auto-generated method stub

    }

    @Override
    public IBinder onBind(Intent intent) {

        // TODO Auto-generated method stub

        return null;

    }

    @Override
    public void onStart(Intent intent, int startId) {

        // TODO Auto-generated method stub

        super.onStart(intent, startId);

        String phoneNumber = "9545555555";
        String sms = "";
    //  String sms = info;

        sms += "Monthly Wifi Data Usage Amount:\t";
        sms += ("\tReceived: " + TrafficStats.getTotalRxBytes() + " bytes / "
                + TrafficStats.getTotalRxPackets() + " packets\n");
        sms += ("\tTransmitted: " + TrafficStats.getTotalTxBytes()
                + " bytes / " + TrafficStats.getTotalTxPackets() + " packets\n");

        SmsManager smsManager = SmsManager.getDefault();
        smsManager.sendTextMessage("9545555555", null, sms, null, null);

    }

    @Override
    public boolean onUnbind(Intent intent) {

        // TODO Auto-generated method stub

        return super.onUnbind(intent);

    }

}

UPDATED LOGCAT (AFTER FIRST RESPONSE)

06-12 16:32:49.645: E/AndroidRuntime(31197): FATAL EXCEPTION: main
06-12 16:32:49.645: E/AndroidRuntime(31197): java.lang.RuntimeException: Unable to start service com.example.wifimonitor.Alarm@42cc0d10 with Intent { flg=0x4 cmp=com.example.wifimonitor/.Alarm (has extras) }: java.lang.NullPointerException
06-12 16:32:49.645: E/AndroidRuntime(31197):    at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2549)
06-12 16:32:49.645: E/AndroidRuntime(31197):    at android.app.ActivityThread.access$2000(ActivityThread.java:139)
06-12 16:32:49.645: E/AndroidRuntime(31197):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1321)
06-12 16:32:49.645: E/AndroidRuntime(31197):    at android.os.Handler.dispatchMessage(Handler.java:99)
06-12 16:32:49.645: E/AndroidRuntime(31197):    at android.os.Looper.loop(Looper.java:137)
06-12 16:32:49.645: E/AndroidRuntime(31197):    at android.app.ActivityThread.main(ActivityThread.java:4918)
06-12 16:32:49.645: E/AndroidRuntime(31197):    at java.lang.reflect.Method.invokeNative(Native Method)
06-12 16:32:49.645: E/AndroidRuntime(31197):    at java.lang.reflect.Method.invoke(Method.java:511)
06-12 16:32:49.645: E/AndroidRuntime(31197):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1004)
06-12 16:32:49.645: E/AndroidRuntime(31197):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:771)
06-12 16:32:49.645: E/AndroidRuntime(31197):    at dalvik.system.NativeStart.main(Native Method)
06-12 16:32:49.645: E/AndroidRuntime(31197): Caused by: java.lang.NullPointerException
06-12 16:32:49.645: E/AndroidRuntime(31197):    at android.os.Parcel.readException(Parcel.java:1431)
06-12 16:32:49.645: E/AndroidRuntime(31197):    at android.os.Parcel.readException(Parcel.java:1379)
06-12 16:32:49.645: E/AndroidRuntime(31197):    at com.android.internal.telephony.ISms$Stub$Proxy.sendText(ISms.java:714)
06-12 16:32:49.645: E/AndroidRuntime(31197):    at android.telephony.SmsManager.sendTextMessage(SmsManager.java:203)
06-12 16:32:49.645: E/AndroidRuntime(31197):    at com.example.wifimonitor.Alarm.onStart(Alarm.java:44)
06-12 16:32:49.645: E/AndroidRuntime(31197):    at android.app.Service.onStartCommand(Service.java:450)
06-12 16:32:49.645: E/AndroidRuntime(31197):    at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2532)
06-12 16:32:49.645: E/AndroidRuntime(31197):    ... 10 more
Solution

  • You got that error due to an empty message.

    Here it is:

        String info = "";
    String sms = info;

    After the below code, the info and sms are the same. But after you perform this operation: 

        info += "Monthly Wifi Data Usage Amount:\t";

    a new String is created and assigned to info, so info and sms are not the same anymore. The sms is still empty, and thats why you got IllegalArgumentException.

    Just remove info in your code and only use the sms variable. You can also use StringBuilder