Search code examples
androidclasscastexception

Class Cast Exception problem


i keep getting a class cast exception error when i run my program and i am not entirely sure why.

error

02-18 14:31:27.585: ERROR/AndroidRuntime(325): FATAL EXCEPTION: main
02-18 14:31:27.585: ERROR/AndroidRuntime(325): java.lang.RuntimeException: Unable to start receiver com.app.notifyme.SmsReciever: java.lang.ClassCastException: java.lang.String
02-18 14:31:27.585: ERROR/AndroidRuntime(325):     at android.app.ActivityThread.handleReceiver(ActivityThread.java:2821)
02-18 14:31:27.585: ERROR/AndroidRuntime(325):     at android.app.ActivityThread.access$3200(ActivityThread.java:125)
02-18 14:31:27.585: ERROR/AndroidRuntime(325):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2083)
02-18 14:31:27.585: ERROR/AndroidRuntime(325):     at android.os.Handler.dispatchMessage(Handler.java:99)
02-18 14:31:27.585: ERROR/AndroidRuntime(325):     at android.os.Looper.loop(Looper.java:123)
02-18 14:31:27.585: ERROR/AndroidRuntime(325):     at android.app.ActivityThread.main(ActivityThread.java:4627)
02-18 14:31:27.585: ERROR/AndroidRuntime(325):     at java.lang.reflect.Method.invokeNative(Native Method)
02-18 14:31:27.585: ERROR/AndroidRuntime(325):     at java.lang.reflect.Method.invoke(Method.java:521)
02-18 14:31:27.585: ERROR/AndroidRuntime(325):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
02-18 14:31:27.585: ERROR/AndroidRuntime(325):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
02-18 14:31:27.585: ERROR/AndroidRuntime(325):     at dalvik.system.NativeStart.main(Native Method)
02-18 14:31:27.585: ERROR/AndroidRuntime(325): Caused by: java.lang.ClassCastException: java.lang.String
02-18 14:31:27.585: ERROR/AndroidRuntime(325):     at android.app.ContextImpl$SharedPreferencesImpl.getInt(ContextImpl.java:2706)
02-18 14:31:27.585: ERROR/AndroidRuntime(325):     at com.app.notifyme.SmsReciever.onReceive(SmsReciever.java:45)
02-18 14:31:27.585: ERROR/AndroidRuntime(325):     at android.app.ActivityThread.handleReceiver(ActivityThread.java:2810)

now if i read that right it is saying the error is at line 45 in SmsReciever which would make this the problem area.

SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(context);
unread = pref.getInt(SmsPrefs.COUNT, 0);

I have everything defined as such

private int unread = 0;
//in preference class
public static final String COUNT = "";

I am just trying to use this variable to keep a count. Someone guide me along here because i really dont see a problem.

update***

how code is

public class SmsReciever extends BroadcastReceiver {

static final String ACTION = "android.provider.Telephony.SMS_RECEIVED";

NotificationManager notifyManag;

String mLast = new String();
private int unread = 0;

@Override
public void onReceive(Context arg0, Intent arg1) {

    boolean smsOn = false;
    String smsColor = new String ("Green");
    Uri smsSound;
    String smsVibrate = new String ("Normal");


    SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(arg0);

     smsOn = pref.getBoolean("PREF_SMS_ON", false);
     smsColor = pref.getString("SMS_PREF_COLOR", "Green");
     smsSound = Uri.parse(pref.getString("SMS_PREF_SOUND", "Silent"));
     smsVibrate = pref.getString("SMS_PREF_SOUND", "Normal");
     unread = pref.getInt(SmsPrefs.COUNT, 0);
     mLast = pref.getString(SmsPrefs.LAST, "");

       NotificationManager mNotificationManager = (NotificationManager) arg0.getSystemService(Context.NOTIFICATION_SERVICE);
        if (arg1.getAction().equals(ACTION) && smsOn == true){
            String from = new String();
            String body = new String();

            Bundle bundle = arg1.getExtras();
            if (bundle != null) {
                Object[] pdus = (Object[]) bundle.get("pdus");
                for (Object pdu : pdus){
                SmsMessage messages = SmsMessage.createFromPdu((byte[]) pdu);
                from = messages.getDisplayOriginatingAddress();
                body= messages.getDisplayMessageBody();
                }// end for
            }//end if

            int icon = 0;
            CharSequence tickerText = null;
            long when = 0;
            SharedPreferences.Editor editor = pref.edit();

            icon = icon(icon);
            tickerText = from + ": " + body;
            when = System.currentTimeMillis();
            CharSequence contentText = "";
            CharSequence contentTitle = "";

            /*
             if no notifications do normal
             else if notified >= 1 and last message is from same person display name and how many messages
             else if(notified >=1 and last message is from different display new message and how many
             */
            if(unread == 0){
                contentTitle = from;
                contentText = body.toString();
                unread = 1;
                editor.putInt(SmsPrefs.COUNT, unread);
                editor.commit();
            }else if(unread >= 1 && mLast.equals(from)){
                contentTitle = from;
                contentText = unread + " unread messages";
                unread++;
                editor.putInt(SmsPrefs.COUNT, unread);
                editor.commit();
            }else if(unread >= 1 && !mLast.equals(from)){
                contentTitle = "New Messages";
                contentText = unread + " unread messages";
                unread++;
                editor.putInt(SmsPrefs.COUNT, unread);
                editor.commit();
            }

            mLast = from;
            editor.putString(SmsPrefs.LAST, mLast);
            editor.commit();

and in the preference activity I have count defined as i showed earlier, also tried putting something in the string but still the same result


Solution

  • What are you storing in the preferences for COUNT? I think you may have stored some int value as a string accidentally.

    Like I think there is something like this in your code:

    int a = 1;
    prefs.putInt(COUNT, a);
    String LAST = "";
    prefs.putString(LAST, "NAME");
    prefs.commit();
    ...
    

    and later on you are doing a prefs.getInt(COUNT) which should fail as it is doing because LAST and COUNT resolve to the same key.