我正在尝试在我的源代码中添加一些功能，以记录在我执行其余代码（收集 wifi 和手机数据使用总量并通过短信发送）之前至少拨打了一个电话的事实当我添加代码以保存至少打过一个电话的事实时，我最终收到一条错误消息，指出“无法访问代码 - 返回 startId；” 我不确定是什么导致了这个问题。
提前致谢！
SOURCE GETTING ERROR: Unreachable Code - return startId;
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;
public static final 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);
SharedPreferences settings = ctx.getSharedPreferences(
Constants.PREFS_NAME, 0);
Editor editor = settings.edit();
editor.putString("0", new String(data));
editor.commit();
}
return String.valueOf(data);
}
private Intent getIntent() {
// TODO Auto-generated method stub
return null;
}
public int onStartCommand(Intent intent, int flags, int startId, int state,
String incomingNumber) {
Log.d(Constants.TAG, "Logging Service Started");
Bundle extras = intent.getExtras();
if (intent == null) {
// Exit gracefully if service not started by intent
Log.d(Constants.TAG, "Error: Null Intent");
} else {
if (extras != null) {
if (TelephonyManager.CALL_STATE_OFFHOOK == state) {
// wait for phone to go offhook (probably set a boolean
// flag) so you
// know your app initiated the call.
// Log.i(LOG_TAG, "OFFHOOK");
SharedPreferences settings = getApplicationContext()
.getSharedPreferences(Constants.PREFS_NAME, 0);
Editor editor = settings.edit();
editor.putString("callMade", "1");
editor.commit();
} else {
// SharedPreferences settings = getApplicationContext()
// .getSharedPreferences(Constants.PREFS_NAME, 0);
// if (settings.getString("callsMade", "1").equals(1)) {
String newMdn = swappedMdn(this);
text = extras.getString(Constants.DM_SMS_CONTENT);
// 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("#.###");
// get the date
SimpleDateFormat s = new SimpleDateFormat(
"hh/mm/ss/MM/dd/yy");
String tag = ";";
String mobileStr = nf.format(mobileBytes);
String totalStr = nf.format(totalBytes);
String DToDevice = s.format(new Date());
SharedPreferences settings = getApplicationContext()
.getSharedPreferences(Constants.PREFS_NAME, 0);
String status = (settings.getString("status", "0"));
String info = String
.format("USI%sCN%s,WN%s", tag + status + tag
+ settings.getString("0", newMdn) + 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();
}
}
return START_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);
}
}
新代码/错误之前的来源（工作正常）：
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;
public static final 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);
SharedPreferences settings = ctx.getSharedPreferences(Constants.PREFS_NAME, 0);
Editor editor = settings.edit();
editor.putString("0", new String(data));
editor.commit();
}
return String.valueOf(data);
}
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");
Bundle extras = intent.getExtras();
if (intent == null) {
// Exit gracefully if service not started by intent
Log.d(Constants.TAG, "Error: Null Intent");
} else {
if (extras != null) {
String newMdn = swappedMdn(this);
text = extras.getString(Constants.DM_SMS_CONTENT);
// 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("#.###");
// 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 = extras.getString(DataCountUtilities.swappedMdn(this));
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 + settings.getString("0", newMdn) + 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();
}
return START_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);
}
}