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我正在開發一個步數計數器應用程序，我計算步數，並在午夜更新到服務器。我有一個服務不斷運行來完成所有這些。服務在某段時間後停止工作。需要繼續工作
這裏是我的服務：
public class StepCounterService extends Service implements SensorEventListener, StepListener, WebServiceInterface, GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener, LocationListener {
private static final int SERVICE_ID = 27;
private static final int SEND_SESSION_REQUEST_CODE = 1;
private static final int SEND_ACTIVITY_REQUEST_CODE = 2;
private static final int MAIN_NOTIFICATION_ID = 3;
private static final int SECONDARY_NOTIFICATION_ID = 4;
private LocalBroadcastManager broadcaster;
static final public String STEP_INCREMENT = "com.app.STEP_INCREMENTED";
static final public String SESSION_COMPLETE = "com.app.SESSION_COMPLETE";
static final public String ACTIVITY_COMPLETE = "com.app.ACTIVITY_COMPLETE";
static final public String STEP_INCREMENT_KEY = "step_count";
Session session;
private StepDetector stepDetector;
private SensorManager sensorManager;
private Sensor sensor;
private int numberOfSteps = 0;
private GoogleApiClient googleApiClient;
private LocationRequest mLocationRequest;
double currentLatitude;
double currentLongitude;
ArrayList<String> arrayListLocations;
private AlarmManager sendActivityAlarmManager;
private PendingIntent activityAlarmIntent;
private NotificationManager notificationManager;
RemoteViews contentView;
PowerManager.WakeLock wl;
private String TAG = "Wake Lock Tag";
private int SET_LAST_LOCATION_REQUEST_CODE = 5;
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// TODO Auto-generated method stub
return START_STICKY;
}
@Override
public void onTaskRemoved(Intent rootIntent) {
// TODO Auto-generated method stub
System.out.println("---- In onTaskRemoved Function");
restartKilledService();
}
@Override
public void onDestroy() {
System.out.println("---- In onDestroy Function");
if (wl != null) {
wl.release();
}
super.onDestroy();
restartKilledService();
}
void restartKilledService() {
System.out.println("---- In restartKilledService Function");
Intent restartService = new Intent(getApplicationContext(), StepCounterService.class);
restartService.setPackage(getPackageName());
PendingIntent restartServicePI = PendingIntent.getService(getApplicationContext(), StepCounterService.SERVICE_ID, restartService, PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager alarmService = (AlarmManager) getApplicationContext().getSystemService(Context.ALARM_SERVICE);
alarmService.set(AlarmManager.RTC_WAKEUP, SystemClock.elapsedRealtime() + 100, restartServicePI);
}
@Override
public void onCreate() {
// TODO Auto-generated method stub
PowerManager pm = (PowerManager) getApplicationContext().getSystemService(getApplicationContext().POWER_SERVICE);
wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG);
wl.acquire();
super.onCreate();
session = new Session(this);
buildGoogleApiClient();
broadcaster = LocalBroadcastManager.getInstance(this);
sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
sensor = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
stepDetector = new StepDetector();
stepDetector.registerListener(StepCounterService.this);
Context ctx = getApplicationContext();
Calendar cal = Calendar.getInstance();
AlarmManager am = (AlarmManager) ctx.getSystemService(Context.ALARM_SERVICE);
long interval = 1000 * 60 * 5; // 5 minutes in milliseconds
Intent serviceIntent = new Intent(ctx, StepCounterService.class);
PendingIntent servicePendingIntent = PendingIntent.getService(ctx, StepCounterService.SERVICE_ID, serviceIntent, PendingIntent.FLAG_CANCEL_CURRENT);
am.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), interval, servicePendingIntent);
sensorManager.registerListener(this, sensor, SensorManager.SENSOR_DELAY_FASTEST);
notificationManager = (NotificationManager) getSystemService(Activity.NOTIFICATION_SERVICE);
contentView = new RemoteViews(getPackageName(), R.layout.notification_layout);
contentView.setImageViewResource(R.id.image, R.drawable.notif_icon);
if (session.getUser() != null && !(session.getUser().getName().equals("")))
updateMainNotification(session.getTodaySteps() + "");
startAlarm();
}
protected synchronized void buildGoogleApiClient() {
googleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
googleApiClient.connect();
mLocationRequest = LocationRequest.create()
.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
.setInterval(10 * 1000) // 10 seconds, in milliseconds
.setFastestInterval(1 * 1000);
}
@Override
public void onSensorChanged(SensorEvent event) {
if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
stepDetector.updateAccel(event.timestamp, event.values[0], event.values[1], event.values[2]);
}
}
@Override
public void step(long timeNs) {
numberOfSteps = session.getTodaySteps();
numberOfSteps++;
sendStepIncrementBroadcast(numberOfSteps);
session.setTodaySteps(numberOfSteps);
if (session.getUser() != null && !(session.getUser().getName().equals("")))
updateMainNotification(numberOfSteps + "");
else {
try {
notificationManager.cancel(MAIN_NOTIFICATION_ID);
} catch (Exception e) {
}
}
}
public void sendStepIncrementBroadcast(int numberOfSteps) {
Intent intent = new Intent(STEP_INCREMENT);
intent.putExtra(STEP_INCREMENT_KEY, numberOfSteps);
broadcaster.sendBroadcast(intent);
}
@Override
public void onAccuracyChanged(Sensor sensor, int i) {
}
public float[] getDataFromSteps(int stepsCount) {
float caloriesCount = 0;
float creditsCount = 0;
try {
double adjustedWeight = Double.parseDouble(session.getUser().getWeight())/LinksAndKeys.weightAdjuster;
caloriesCount = Math.round(((adjustedWeight * LinksAndKeys.metValue)/LinksAndKeys.setPace) * (stepsCount/LinksAndKeys.stepsPerMile));
caloriesCount = caloriesCount * 1.2f;
creditsCount = caloriesCount/25.4f;
} catch (Exception e) {
caloriesCount = 0;
creditsCount = 0;
}
float[] resultantFloat = {caloriesCount, creditsCount};
return resultantFloat;
}
private void startAlarm() {
sendActivityAlarmManager = (AlarmManager) this.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this, ActivityCompleteReceiver.class);
activityAlarmIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, 23);
calendar.set(Calendar.MINUTE, 58);
// calendar.set(Calendar.HOUR_OF_DAY, generateRandomTime()[0]);
// calendar.set(Calendar.MINUTE, generateRandomTime()[1]);
if (System.currentTimeMillis() > calendar.getTimeInMillis()) {
calendar.add(Calendar.DAY_OF_YEAR, 1);
}
sendActivityAlarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, activityAlarmIntent);
}
private void updateMainNotification(String stepsValue) {
String title = "Today: " + stepsValue + " steps - " + LinksAndKeys.decimalFormat.format(getDataFromSteps(session.getTodaySteps())[1]) + " FIMOs";
String message = "Keep Walking and Keep Earning";
contentView.setTextViewText(R.id.textViewTitle, title);
contentView.setTextViewText(R.id.textViewMessage, message);
Intent notificationIntent = new Intent(StepCounterService.this, SplashActivity.class);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent = PendingIntent.getActivity(StepCounterService.this, 0, notificationIntent, 0);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.running_icon)
.setContent(contentView).setContentIntent(intent);
Notification notification = mBuilder.build();
notification.flags |= Notification.FLAG_ONGOING_EVENT;
// notificationManager.notify(MAIN_NOTIFICATION_ID, notification);
startForeground(MAIN_NOTIFICATION_ID, notification);
}
private void updateReminderNotification() {
String title = "A gentle reminder";
String message = "Its time to get on track";
contentView.setTextViewText(R.id.textViewTitle, title);
contentView.setTextViewText(R.id.textViewMessage, message);
Intent notificationIntent = new Intent(StepCounterService.this, SplashActivity.class);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent = PendingIntent.getActivity(StepCounterService.this, 0, notificationIntent, 0);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.running_icon)
.setContent(contentView).setContentIntent(intent);
Notification notification = mBuilder.build();
notificationManager.notify(SECONDARY_NOTIFICATION_ID, notification);
}
private int[] generateRandomTime() {
int[] timeIntegers = new int[2];
final Random r = new Random();
timeIntegers[0] = r.nextInt(58 - 56) + 56;
timeIntegers[1] = r.nextInt(59 - 1) + 1;
return timeIntegers;
}
}
這裏是活動的完整接收器：
public class ActivityCompleteReceiver extends BroadcastReceiver implements WebServiceInterface {
Session session;
private LocalBroadcastManager broadcaster;
static final public String ACTIVITY_COMPLETE = "com.fimo.ACTIVITY_COMPLETE";
private static final int SEND_ACTIVITY_REQUEST_CODE = 1;
Gson gson;
MyDatabase myDatabase;
UserActivity currentUserActivity;
@Override
public void onReceive(Context context, Intent intent) {
session = new Session(context);
broadcaster = LocalBroadcastManager.getInstance(context);
myDatabase = new MyDatabase(context);
gson = new Gson();
sendActivityToServer(context, session.getUser().getId(), session.getTodaySteps());
}
private void sendActivityToServer(Context context, String id, int steps) {
Calendar c = Calendar.getInstance();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
String date = dateFormat.format(c.getTime());
UserActivity userActivity = new UserActivity();
userActivity.setDate(date);
userActivity.setSteps(steps);
userActivity.setCalories(getDataFromSteps(steps)[0]);
userActivity.setCredits(getDataFromSteps(steps)[1]);
currentUserActivity = userActivity;
if (isNetworkAvailable(context)) {
HashMap<String, String> paramsList = new HashMap<>();
ArrayList<UserActivity> arrayListUserActivity = myDatabase.getAllUserActivities();
arrayListUserActivity.add(userActivity);
paramsList.put(LinksAndKeys.ID_KEY, id);
paramsList.put(LinksAndKeys.DATA_KEY, gson.toJson(arrayListUserActivity));
Log.d("Receiver Request ----", id + " - " + gson.toJson(arrayListUserActivity));
WebServiceController webServiceController = new WebServiceController(
context, ActivityCompleteReceiver.this);
String hitURL = LinksAndKeys.SEND_ACTIVITY_URL;
webServiceController.sendSilentRequest(false, hitURL, paramsList, SEND_ACTIVITY_REQUEST_CODE);
} else {
myDatabase.addUserActivity(currentUserActivity);
currentUserActivity = null;
Intent in = new Intent(ACTIVITY_COMPLETE);
broadcaster.sendBroadcast(in);
session.setTodaySteps(0);
}
}
private boolean isNetworkAvailable(Context context) {
ConnectivityManager connectivityManager
= (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
return activeNetworkInfo != null && activeNetworkInfo.isConnected();
}
@Override
public void getResponse(int responseCode, String responseString, String requestType, int requestCode) {
if (requestCode == SEND_ACTIVITY_REQUEST_CODE && responseCode == 200) {
try {
JSONObject responseObject = new JSONObject(responseString);
String message = responseObject.getString("message");
if (message.equals("Success")) {
myDatabase.deleteAllUserActivities();
JSONObject jsonObject = responseObject.getJSONObject("data");
session.setServerCredits(Float.parseFloat(jsonObject.getString("credits")));
Intent in = new Intent(ACTIVITY_COMPLETE);
broadcaster.sendBroadcast(in);
session.setTodaySteps(0);
} else {
myDatabase.addUserActivity(currentUserActivity);
currentUserActivity = null;
Intent in = new Intent(ACTIVITY_COMPLETE);
broadcaster.sendBroadcast(in);
session.setTodaySteps(0);
}
} catch (Exception e) {
myDatabase.addUserActivity(currentUserActivity);
currentUserActivity = null;
Intent in = new Intent(ACTIVITY_COMPLETE);
broadcaster.sendBroadcast(in);
session.setTodaySteps(0);
}
} else {
if (currentUserActivity != null) {
myDatabase.addUserActivity(currentUserActivity);
currentUserActivity = null;
Intent in = new Intent(ACTIVITY_COMPLETE);
broadcaster.sendBroadcast(in);
session.setTodaySteps(0);
}
}
}
public float[] getDataFromSteps(int stepsCount) {
float caloriesCount = 0;
float creditsCount = 0;
try {
double adjustedWeight = Double.parseDouble(session.getUser().getWeight())/LinksAndKeys.weightAdjuster;
caloriesCount = Math.round(((adjustedWeight * LinksAndKeys.metValue)/LinksAndKeys.setPace) * (stepsCount/LinksAndKeys.stepsPerMile));
caloriesCount = caloriesCount * 1.2f;
creditsCount = caloriesCount/25.4f;
} catch (Exception e) {
caloriesCount = 0;
creditsCount = 0;
}
float[] resultantFloat = {caloriesCount, creditsCount};
return resultantFloat;
}
}
編寫的代碼應該表現在這條路上：
每天都會計算用戶採取的步驟數。 - >在11.56-11.59之間的特定時間的午夜時間，將數據發送到活動完成的接收方 - >如果互聯網可用，則接收方接收數據並嘗試將其發送到服務器。如果沒有，則將其保存到本地數據庫 - >保存或發送後，將步驟重置爲0，服務將從第二天的0重新開始計數。
問題是服務實際上並沒有在給定的時間工作，接收者也沒有收到活動的完整意圖。如果我打開手機並通過設定一個距離當前時間幾分鐘的時間進行測試，則服務正常。但是如果手機長時間保持不動，那麼我認爲這種情況會在服務停止工作時發生。這是我的猜測，實際的問題可能是別的。任何建議或解決方案，高度讚賞。
請將服務切換到清單中的進程並嘗試。或嘗試前臺服務。服務可能會在一段時間後停止 – Godwin
當設備存在內存不足問題時，Android會關閉服務，您可以在服務的onTerminate（）上啓動服務，或者您可以在服務的onDestroy（）上發送廣播並使用接收器再次啓動服務。 –
[此問題]（https://stackoverflow.com/q/43230330/5241933）有幫助嗎？ –