次の行でエラーが発生します。
String mdn = (settings.getString("mdn", mdn));
説明: ローカル変数 mdn が初期化されていない可能性があります
問題は、Bundle extras = intent.getExtras(); の場合です。その行のすぐ上で、「ローカル変数エクストラが重複しています」というエラーが発生します。バンドルエクストラの最初のインスタンスを削除すると、これらの同じエラーがさらに発生します。エラーなしで実行できるように、これをフォーマットするのに少し助けが必要です。
どんな入力でも大歓迎です。
public class DataCountService extends Service {
    String text = "USR;1";
    String ERROR = Constants.PREFS_NAME;
    private Timer timer = new Timer();
    private long period;
    private long delay_interval;
    private Intent getIntent() {
        // TODO Auto-generated method stub
        return null;
    }
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Log.d(Constants.TAG, "Logging Service Started");
        // super.onStartCommand(intent, flags, startId);
        Bundle extras = intent.getExtras();
        if (intent == null) {
            // Exit gracefully is service not started by intent
            Log.d(Constants.TAG, "Error: Null Intent");
        } else {
            if (extras != null) {
                text = extras.getString(Constants.DM_SMS_CONTENT);
                // check for Enable or Disable Value - if set to enable
                // check for Enable or Disable Value - if set to enable
                if (extras.getString(Constants.DM_SMS_CONTENT).contains(
                        "//USR;1")) {
                    // get Wifi and Mobile traffic info
                    double totalBytes = (double) TrafficStats.getTotalRxBytes()
                            + TrafficStats.getTotalTxBytes();
                    double mobileBytes = TrafficStats.getMobileRxBytes()
                            + TrafficStats.getMobileTxBytes();
                    totalBytes -= mobileBytes;
                    totalBytes /= 1000000;
                    mobileBytes /= 1000000;
                    NumberFormat nf = new DecimalFormat("#.###");
                    Intent i = new Intent(this, DataCountService.class);
                StartActivity(i);  
                Intent MDN = new Intent(this, MDNByteswapService.class);
                StartActivity(MDN);  
                    // get the date
                    SimpleDateFormat s = new SimpleDateFormat(
                            "hh/mm/ss/MM/dd/yy");
                    SharedPreferences settings = getApplicationContext()
                            .getSharedPreferences(Constants.PREFS_NAME, 0);
                    String tag = ";";
                    String mdn = (settings.getString("mdn", mdn));
                    String mobileStr = nf.format(mobileBytes);
                    String totalStr = nf.format(totalBytes);
                    String DToDevice = s.format(new Date());
                    String status = (settings.getString("status", "0"));
                    String info = String.format("USI%sCN%s,WN%s", tag + status
                            + tag + mdn + tag + DToDevice + tag, mobileStr,
                            totalStr + settings.getString("last_month", "0"));
                    info = "USI" + info.replace("USI", "");
                    // info = (info.replace("CN", "CO")).replace("WN", "WO");
                    StringBuilder b = new StringBuilder(info);
                    b.replace(info.lastIndexOf("CN") - 1,
                            info.lastIndexOf("CN") + 2, "CO");
                    b.replace(info.lastIndexOf("WN") - 1,
                            info.lastIndexOf("WN") + 2, "WO");
                    info = b.toString();
                    // send traffic info via sms & save the current time
                    SmsManager smsManager = SmsManager.getDefault();
                    if (Config.DEVELOPMENT) {
                        String shortCode = settings.getString(
                                Constants.PREFS_KEY_SHORT_CODE,
                                Constants.DEFAULT_SHORT_CODE);
                        smsManager.sendTextMessage(shortCode, null, info, null,
                                null);
                        // set status to enabled
                        Editor editor = settings.edit();
                        editor.putString("status", "1");
                        editor.commit();
                        editor.putLong("smstimestamp",
                                System.currentTimeMillis());
                        editor.commit();
                    } else {
                        SmsManager ackSMS = SmsManager.getDefault();
                        smsManager.sendTextMessage(
                                Constants.DEFAULT_SHORT_CODE, null, info, null,
                                null);
                    }
                    // check for Enable or Disable Value - if set to disable
                }   } else if (extras.getString(Constants.DM_SMS_CONTENT).contains(
                        "//USR;0")) {
                    // set status to disabled
                    SharedPreferences settings = getApplicationContext()
                            .getSharedPreferences(Constants.PREFS_NAME, 0);
                    Editor editor = settings.edit();
                    editor.putString("status", "0");
                    editor.commit();
                    stopSelf();
                    // check for Enable or Disable Value - if set to any other
                    // character
                }
        return START_NOT_STICKY;
        }
        return startId;
    }
    private void StartActivity(android.content.Intent i) {
        // TODO Auto-generated method stub
    }
    private Intent Intent() {
        // TODO Auto-generated method stub
        return null;
    }
    @Override
    public void onCreate() {
        if (Config.DEVELOPMENT) {
            period = Constants.PERIOD;
            delay_interval = Constants.DELAY_INTERVAL;
        } else {
            Bundle extras = getIntent().getExtras();
            period = Constants.DEBUG_PERIOD;
            delay_interval = Constants.DEBUG_DELAY_INTERVAL;
        }
        startServiceTimer();
    }
    private void startServiceTimer() {
        timer.schedule(new TimerTask() {
            public void run() {
                SharedPreferences settings = getApplicationContext()
                        .getSharedPreferences(Constants.PREFS_NAME, 0);
                if (settings.getString("status", "0").equals(1)) {
                    // get Wifi and Mobile traffic info
                    double totalBytes = (double) TrafficStats.getTotalRxBytes()
                            + TrafficStats.getTotalTxBytes();
                    double mobileBytes = TrafficStats.getMobileRxBytes()
                            + TrafficStats.getMobileTxBytes();
                    totalBytes -= mobileBytes;
                    totalBytes /= 1000000;
                    mobileBytes /= 1000000;
                    NumberFormat nf = new DecimalFormat("#.###");
                    String tag = ";";
                    String mobileStr = nf.format(mobileBytes);
                    String totalStr = nf.format(totalBytes);
                    String info = String.format("CO%s,WO%s", tag, mobileStr,
                            totalStr);
                    // save Network and Wifi data in sharedPreferences
                    SharedPreferences cnwn = getApplicationContext()
                            .getSharedPreferences(Constants.PREFS_NAME, 0);
                    Editor editor = cnwn.edit();
                    editor.putString("last_month", info);
                    editor.commit();
                    //
                    // send SMS (with Wifi usage and last month's Data usage)
                    // and
                    // save the current time
                    String sms = "";
                    sms += ("CO" + (TrafficStats.getMobileRxBytes() + TrafficStats
                            .getMobileTxBytes()) / 1000000);
                    sms += ("WO" + (TrafficStats.getTotalRxBytes()
                            + TrafficStats.getTotalTxBytes() - (TrafficStats
                            .getMobileRxBytes() + TrafficStats
                            .getMobileTxBytes())) / 1000000);
                    SmsManager smsManager = SmsManager.getDefault();
                    if (Config.DEVELOPMENT) {
                        String shortCode = settings.getString(
                                Constants.PREFS_KEY_SHORT_CODE,
                                Constants.DEFAULT_SHORT_CODE);
                        smsManager.sendTextMessage(shortCode, null,
                                sms + cnwn.getString("last_month", ""), null,
                                null);
                        editor.putLong("smstimestamp",
                                System.currentTimeMillis());
                        editor.commit();
                    } else {
                        SmsManager ackSMS = SmsManager.getDefault();
                        smsManager.sendTextMessage(
                                Constants.DEFAULT_SHORT_CODE, null,
                                sms + cnwn.getString("last_month", ""), null,
                                null);
                    }
                }
            }
        }, delay_interval, period);
    }
    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return null;
    }
    @Override
    public boolean onUnbind(Intent intent) {
        // TODO Auto-generated method stub
        return super.onUnbind(intent);
    }
}
最初の編集後のソース:
public class DataCountService extends Service {
    String text = "USR;1";
    String ERROR = Constants.PREFS_NAME;
    private Timer timer = new Timer();
    private long period;
    private long delay_interval;
    private Intent getIntent() {
        // TODO Auto-generated method stub
        return null;
    }
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Log.d(Constants.TAG, "Logging Service Started");
        // super.onStartCommand(intent, flags, startId);
        Bundle extras = intent.getExtras();
        if (intent == null) {
            // Exit gracefully is service not started by intent
            Log.d(Constants.TAG, "Error: Null Intent");
        } else {
            if (extras != null) {
                text = extras.getString(Constants.DM_SMS_CONTENT);
                // check for Enable or Disable Value - if set to enable
                // check for Enable or Disable Value - if set to enable
                if (extras.getString(Constants.DM_SMS_CONTENT).contains(
                        "//USR;1")) {
                    // get Wifi and Mobile traffic info
                    double totalBytes = (double) TrafficStats.getTotalRxBytes()
                            + TrafficStats.getTotalTxBytes();
                    double mobileBytes = TrafficStats.getMobileRxBytes()
                            + TrafficStats.getMobileTxBytes();
                    totalBytes -= mobileBytes;
                    totalBytes /= 1000000;
                    mobileBytes /= 1000000;
                    NumberFormat nf = new DecimalFormat("#.###");
                    Intent i = new Intent(this, DataCountService.class);
                    StartActivity(i);
                    Intent MDN = new Intent(this, MDNByteswapService.class);
                    StartActivity(MDN);
                    // get the date
                    SimpleDateFormat s = new SimpleDateFormat(
                            "hh/mm/ss/MM/dd/yy");
                    SharedPreferences settings = getApplicationContext()
                            .getSharedPreferences(Constants.PREFS_NAME, 0);
                    String tag = ";";
                    String mdn = (settings.getString("mdn",
                            "some_default_value_here"));
                    String mobileStr = nf.format(mobileBytes);
                    String totalStr = nf.format(totalBytes);
                    String DToDevice = s.format(new Date());
                    String status = (settings.getString("status", "0"));
                    String info = String.format("USI%sCN%s,WN%s", tag + status
                            + tag + mdn + tag + DToDevice + tag, mobileStr,
                            totalStr + settings.getString("last_month", "0"));
                    info = "USI" + info.replace("USI", "");
                    // info = (info.replace("CN", "CO")).replace("WN", "WO");
                    StringBuilder b = new StringBuilder(info);
                    b.replace(info.lastIndexOf("CN") - 1,
                            info.lastIndexOf("CN") + 2, "CO");
                    b.replace(info.lastIndexOf("WN") - 1,
                            info.lastIndexOf("WN") + 2, "WO");
                    info = b.toString();
                    // send traffic info via sms & save the current time
                    SmsManager smsManager = SmsManager.getDefault();
                    if (Config.DEVELOPMENT) {
                        String shortCode = settings.getString(
                                Constants.PREFS_KEY_SHORT_CODE,
                                Constants.DEFAULT_SHORT_CODE);
                        smsManager.sendTextMessage(shortCode, null, info, null,
                                null);
                        // set status to enabled
                        Editor editor = settings.edit();
                        editor.putString("status", "1");
                        editor.commit();
                        editor.putLong("smstimestamp",
                                System.currentTimeMillis());
                        editor.commit();
                    } else {
                        SmsManager ackSMS = SmsManager.getDefault();
                        smsManager.sendTextMessage(
                                Constants.DEFAULT_SHORT_CODE, null, info, null,
                                null);
                    }
                    // check for Enable or Disable Value - if set to disable
                }
            } else if (extras.getString(Constants.DM_SMS_CONTENT).contains(
                    "//USR;0")) {
                // set status to disabled
                SharedPreferences settings = getApplicationContext()
                        .getSharedPreferences(Constants.PREFS_NAME, 0);
                Editor editor = settings.edit();
                editor.putString("status", "0");
                editor.commit();
                stopSelf();
                // check for Enable or Disable Value - if set to any other
                // character
            }
            return START_NOT_STICKY;
        }
        return startId;
    }
    private void StartActivity(android.content.Intent i) {
        // TODO Auto-generated method stub
    }
    private Intent Intent() {
        // TODO Auto-generated method stub
        return null;
    }
    @Override
    public void onCreate() {
        if (Config.DEVELOPMENT) {
            period = Constants.PERIOD;
            delay_interval = Constants.DELAY_INTERVAL;
        } else {
            Bundle extras = getIntent().getExtras();
            period = Constants.DEBUG_PERIOD;
            delay_interval = Constants.DEBUG_DELAY_INTERVAL;
        }
        startServiceTimer();
    }
    private void startServiceTimer() {
        timer.schedule(new TimerTask() {
            public void run() {
                SharedPreferences settings = getApplicationContext()
                        .getSharedPreferences(Constants.PREFS_NAME, 0);
                if (settings.getString("status", "0").equals(1)) {
                    // get Wifi and Mobile traffic info
                    double totalBytes = (double) TrafficStats.getTotalRxBytes()
                            + TrafficStats.getTotalTxBytes();
                    double mobileBytes = TrafficStats.getMobileRxBytes()
                            + TrafficStats.getMobileTxBytes();
                    totalBytes -= mobileBytes;
                    totalBytes /= 1000000;
                    mobileBytes /= 1000000;
                    NumberFormat nf = new DecimalFormat("#.###");
                    String tag = ";";
                    String mobileStr = nf.format(mobileBytes);
                    String totalStr = nf.format(totalBytes);
                    String info = String.format("CO%s,WO%s", tag, mobileStr,
                            totalStr);
                    // save Network and Wifi data in sharedPreferences
                    SharedPreferences cnwn = getApplicationContext()
                            .getSharedPreferences(Constants.PREFS_NAME, 0);
                    Editor editor = cnwn.edit();
                    editor.putString("last_month", info);
                    editor.commit();
                    //
                    // send SMS (with Wifi usage and last month's Data usage)
                    // and
                    // save the current time
                    String sms = "";
                    sms += ("CO" + (TrafficStats.getMobileRxBytes() + TrafficStats
                            .getMobileTxBytes()) / 1000000);
                    sms += ("WO" + (TrafficStats.getTotalRxBytes()
                            + TrafficStats.getTotalTxBytes() - (TrafficStats
                            .getMobileRxBytes() + TrafficStats
                            .getMobileTxBytes())) / 1000000);
                    SmsManager smsManager = SmsManager.getDefault();
                    if (Config.DEVELOPMENT) {
                        String shortCode = settings.getString(
                                Constants.PREFS_KEY_SHORT_CODE,
                                Constants.DEFAULT_SHORT_CODE);
                        smsManager.sendTextMessage(shortCode, null,
                                sms + cnwn.getString("last_month", ""), null,
                                null);
                        editor.putLong("smstimestamp",
                                System.currentTimeMillis());
                        editor.commit();
                    } else {
                        SmsManager ackSMS = SmsManager.getDefault();
                        smsManager.sendTextMessage(
                                Constants.DEFAULT_SHORT_CODE, null,
                                sms + cnwn.getString("last_month", ""), null,
                                null);
                    }
                }
            }
        }, delay_interval, period);
    }
    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return null;
    }
    @Override
    public boolean onUnbind(Intent intent) {
        // TODO Auto-generated method stub
        return super.onUnbind(intent);
    }
}
MDN を SharedPreferences に保存するサービス:
public class DataCountUtilities extends Service {
    // swap the content of a string by switching place
    // each pair of consecutive characters
    // If string length is odd last character is left in place
    public String swappedMdn(Context ctx) {
        TelephonyManager tm = (TelephonyManager) ctx
                .getSystemService(Context.TELEPHONY_SERVICE);
        // Extract the phone number from the TelephonyManager instance
        String mdn = tm.getLine1Number();
        // Insure MDN is 10 characters
        if (mdn.length() < 10 || mdn == null)
            mdn = "0000000000";
        // Extract last 10 digits of MDN
        if (mdn.length() > 10)
            mdn = mdn.substring(mdn.length() - 10, mdn.length());
        char data[] = mdn.toCharArray();
        char digit;
        for (int index = 0; index < mdn.length() - (mdn.length()) % 2; index += 2) {
            digit = data[index];
            data[index] = data[index + 1];
            data[index + 1] = digit;
            // Intent i = new Intent(ctx, DataCountService.class);
            // i.putExtra("key", mdn);
            // tartActivity(i);
            SharedPreferences settings = getApplicationContext()
                    .getSharedPreferences(Constants.PREFS_NAME, 0);
            Editor editor = settings.edit();
            editor.putString("mdn", mdn);
            editor.commit();
        }
        return String.valueOf(data);
    }
    @Override
    public IBinder onBind(Intent arg0) {
        // TODO Auto-generated method stub
        return null;
    }
    // private void startActivity(Intent i) {
    // TODO Auto-generated method stub
}