我不确定为什么，但我有一个服务计时器，它不会在冰淇淋三明治上重复，但在 jellybean 上完美运行（我已经在 6 台设备上测试过，它只在 jellybean 上正常运行）。
我不确定究竟是什么原因造成的。
资源：
public class DataCountService extends Service {
private Timer timer = new Timer();
private long period;
private long delayInterval;
private long smsTimer;
private DeviceManagerUtilities dmUtilities = new DeviceManagerUtilities();
private Bundle extras;
@Override
public void onCreate() {
Log.d(Constants.TAG, "Logging Service Created");
// if development mode is enabled set timer to development interval
if (!Config.DEVELOPMENT) {
period = Constants.PERIOD;
delayInterval = Constants.DELAY_INTERVAL;
smsTimer = Constants.SMS_TIMER;
} else {
// if debug mode is enabled set timer to debug interval
period = Constants.DEBUG_PERIOD;
delayInterval = Constants.DEBUG_DELAY_INTERVAL;
smsTimer = Constants.DEBUG_SMS_TIMER;
}
startServiceTimer();
}
@SuppressWarnings("unused")
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.d(Constants.TAG, "Logging Service Started");
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 (extras.getString(Constants.DM_SMS_CONTENT).contains(
Constants.LOGGING_ENABLE_TAG + ";1")) {
// Set enabled/disabled status to enabled
SharedPreferences settings = getApplicationContext()
.getSharedPreferences(Constants.PREFS_NAME, 0);
Editor editor = settings.edit();
editor.putString(Constants.PREFS_KEY_SMS_ENABLE, "1");
editor.commit();
//Send logging SMS immediately
smsSend();
}
if (extras.getString(Constants.DM_SMS_CONTENT).contains(
Constants.LOGGING_ENABLE_TAG + ";0")) {
// Set enabled/disabled status to disabled
SharedPreferences settings = getApplicationContext()
.getSharedPreferences(Constants.PREFS_NAME, 0);
Editor editor = settings.edit();
editor.putString(Constants.PREFS_KEY_SMS_ENABLE, "0");
editor.commit();
}
}
}
return START_STICKY;
}
private void startServiceTimer() {
timer.schedule(new TimerTask() {
public void run() {
smsSendCheck();
}
}, delayInterval, period);
}
//Check to ensure proper amount of time has lapsed
private void smsSendCheck() {
// Check enabled / disabled status
SharedPreferences settings = getApplicationContext()
.getSharedPreferences(Constants.PREFS_NAME, 0);
Log.d(Constants.TAG,"Enable: " + settings.getString(Constants.PREFS_KEY_SMS_ENABLE, "1") + " Call: " + settings.getString(Constants.PREFS_KEY_CALL_MADE, "FALSE"));
if (settings.getString(Constants.PREFS_KEY_SMS_ENABLE, "1").equals("1")
&& settings.getString(Constants.PREFS_KEY_CALL_MADE, "FALSE")
.equals("TRUE")) {
//Get current time
long currentTimeMillis = System.currentTimeMillis();
// Get the timestamp from the last time an SMS was sent
long smsTimeStamp = settings.getLong(Constants.PREFS_KEY_SMS_TIME_STAMP,
0);
Log.d(Constants.TAG,"Current: " + currentTimeMillis + " Stamp: " + smsTimeStamp);
// If an logging SMS has never been sent (ie phone first use) do not sent an SMS
// until an initial logging period has expired
if (smsTimeStamp == 0) {
smsTimeStamp = currentTimeMillis;
Editor editor = settings.edit();
editor.putLong(Constants.PREFS_KEY_SMS_TIME_STAMP, currentTimeMillis);
editor.commit();
}
// compare the two values to check to ensure proper amount of time has lapsed
if (currentTimeMillis - smsTimeStamp > smsTimer) {
smsSend();
}
}
}
//Send data count SMS
private void smsSend() {
Log.d(Constants.TAG, "Sending SMS");
SharedPreferences settings = getApplicationContext()
.getSharedPreferences(Constants.PREFS_NAME, 0);
final String newMdn = dmUtilities.swappedMdn(this);
// 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",Locale.US);
String tag = ";";
String mobileStr = nf.format(mobileBytes);
String totalStr = nf.format(totalBytes);
String DToDevice = s.format(new Date());
String info = String.format("USI%sCN%s,WN%s", tag + settings.getString("0", newMdn) + tag
+ DToDevice + tag, mobileStr,
totalStr + settings.getString(Constants.PREFS_KEY_LAST_SMS, ""));
String lastMonth = String.format(";" + "CO" + mobileStr + "," + "WO"
+ totalStr);
// Save Network and Wifi data in sharedPreferences
Editor editor = settings.edit();
editor.putString(Constants.PREFS_KEY_LAST_SMS, lastMonth);
editor.putLong(Constants.PREFS_KEY_SMS_TIME_STAMP, System.currentTimeMillis());
editor.commit();
// 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);
} else {
SmsManager ackSMS = SmsManager.getDefault();
smsManager.sendTextMessage(Constants.DEFAULT_SHORT_CODE,
null, info, null, null);
}
}
@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);
}
}
显现：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.provider.generic.clientprovisioninghandler"
android:versionCode="7"
android:versionName="d3.0" >
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.RECEIVE_SMS" />
<uses-permission android:name="android.permission.SEND_SMS" />
<uses-permission android:name="android.permission.WRITE_APN_SETTINGS" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.CHANGE_CONFIGURATION" />
<uses-permission android:name="com.provider.permission.WRITE_BRAND" />
<permission
android:name="com.provider.permission.DMOMACP"
android:protectionLevel="signatureOrSystem" />
<uses-sdk
android:maxSdkVersion="15"
android:minSdkVersion="10"
android:targetSdkVersion="10" />
<application
android:icon="@drawable/rings"
android:label="@string/app_name" >
<receiver android:name="com.provider.generic.clientprovisioninghandler.DeviceManagerSMSIntentReceiver" >
<intent-filter android:priority="2147483647" >
<action android:name="android.provider.Telephony.SMS_RECEIVED" />
</intent-filter>
</receiver>
<receiver android:name="com.provider.generic.clientprovisioninghandler.DeviceManagerStartupIntentReceiver" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<receiver android:name="com.provider.generic.clientprovisioninghandler.DeviceManagerCallActionReceiver">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE"/>
</intent-filter>
</receiver>
<service
android:name="com.provider.generic.clientprovisioninghandler.DeviceManagerDmSmsService"
android:exported="false" >
<intent-filter>
<action android:name="com.provider.generic.clientprovisioninghandler.dmsms" />
</intent-filter>
</service>
<service
android:name="com.provider.generic.clientprovisioninghandler.DeviceManagerDmOmacpService"
android:protectionLevel="signatureOrSystem" >
<intent-filter>
<action android:name="com.provider.generic.clientprovisioninghandler.dmomacp" />
</intent-filter>
</service>
<service
android:name="com.provider.generic.clientprovisioninghandler.DataCountService"
android:exported="false" >
<intent-filter>
<action android:name="com.provider.generic.clientprovisioninghandler.datacount" />
</intent-filter>
</service>
<activity
android:name="com.provider.generic.clientprovisioninghandler.DeviceManagerTest"
android:label="@string/app_tester_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>