如果服务 运行，如何在晚上 8 点停止服务？
How to stop a service at 8 pm if its running?
我有一项服务可以捕获用户的位置并使用改造更新数据库。我想在每天晚上 8 点自动停止服务，如果它 运行 并且还更新用户在晚上 8 点打出的数据库。
我希望服务手动启动，但希望服务在未手动停止时自动停止。
这是我的服务class
public class LiveLocationService extends Service {
private static final String TAG = LiveLocationService.class.getSimpleName();
Retrofit retrofitClient;
CompositeDisposable compositeDisposable = new CompositeDisposable();
MyService myService;
String empCode, year, month, date;
FusedLocationProviderClient client;
LocationCallback locationCallback;
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
retrofitClient = RetrofitClient.getInstance();
myService = retrofitClient.create(MyService.class);
empCode = intent.getStringExtra("empCode");
year = intent.getStringExtra("year");
month = intent.getStringExtra("month");
date = intent.getStringExtra("date");
return super.onStartCommand(intent, flags, startId);
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
@RequiresApi(api = Build.VERSION_CODES.O)
@Override
public void onCreate() {
super.onCreate();
if (isOnline()) {
buildNotification();
requestLocationUpdates();
} else {
Log.e("MSER", "Please connect to the internet.");
}
}
private void buildNotification() {
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
String NOTIFICATION_CHANNEL_ID = "com.deepankmehta.managementservices";
String channelName = "My Background Service";
NotificationChannel chan = null;
chan = new NotificationChannel(NOTIFICATION_CHANNEL_ID, channelName, NotificationManager.IMPORTANCE_HIGH);
chan.setLightColor(Color.BLUE);
chan.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
assert manager != null;
manager.createNotificationChannel(chan);
PendingIntent intent = PendingIntent.getActivity(this, 0, new Intent(this, MainActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID);
Notification notification = notificationBuilder.setOngoing(true)
.setSmallIcon(R.drawable.mser)
.setContentTitle("xxxx")
.setContentText("xxxx is tracking your location.")
.setPriority(NotificationManager.IMPORTANCE_HIGH)
.setCategory(Notification.CATEGORY_SERVICE)
.setContentIntent(intent)
.build();
startForeground(2, notification);
} else {
PendingIntent broadcastIntent = PendingIntent.getActivity(
this, 0, new Intent(this, MainActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
// Create the persistent notification
NotificationCompat.Builder builder = new NotificationCompat.Builder(this)
.setContentTitle(getString(R.string.app_name))
.setContentText("xxxx is tracking your location.")
.setOngoing(true)
.setContentIntent(broadcastIntent)
.setSmallIcon(R.drawable.mser);
startForeground(1, builder.build());
}
}
private void requestLocationUpdates() {
if (isOnline()) {
LocationRequest request = new LocationRequest();
request.setInterval(10000);
request.setFastestInterval(5000);
request.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
client = LocationServices.getFusedLocationProviderClient(this);
int permission = ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION);
if (permission == PackageManager.PERMISSION_GRANTED) {
locationCallback = new LocationCallback() {
@Override
public void onLocationResult(LocationResult locationResult) {
Location location = locationResult.getLastLocation();
if (location != null) {
Log.d(TAG, "location update " + location);
double lat = location.getLatitude();
double lon = location.getLongitude();
final String time = new SimpleDateFormat("HH:mm", Locale.getDefault()).format(new Date());
compositeDisposable.add(myService.userLocation(empCode, year, month, date, time, lat, lon)
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Consumer< String >() {
@Override
public void accept(String s) throws Exception {
Log.e("data", s);
if (s.equals("\"done\"")) {
Log.e("status", "location punched");
}
}
}));
} else {
Log.d("MSER", "location update, no location found. ");
}
}
};
client.requestLocationUpdates(request, locationCallback, null);
} else {
Log.e("MSER", "Please enable location.");
}
} else {
Log.e("MSER", "Please connect to the internet.");
}
}
@Override
public void onDestroy() {
super.onDestroy();
client.removeLocationUpdates(locationCallback);
stopForeground(true);
stopSelf();
}
protected boolean isOnline() {
ConnectivityManager cm = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = cm.getActiveNetworkInfo();
if (netInfo != null && netInfo.isConnectedOrConnecting()) {
return true;
} else {
return false;
}
}
}
这里是首页activityclass启动服务和停止服务的方法。当用户分别点击进入和退出按钮时，将调用这些方法。
private void startTrackerService() {
final String date = new SimpleDateFormat("yyyy-MM-dd", Locale.getDefault()).format(new Date());
final String year = date.substring(0, 4);
final String month = date.substring(5, 7);
final String dateToday = date.substring(8, 10);
Intent intent = new Intent(this, LiveLocationService.class);
intent.putExtra("empCode", empCode);
intent.putExtra("year", year);
intent.putExtra("month", month);
intent.putExtra("date", dateToday);
startService(intent);
}
private void stopTrackerService() {
stopService(new Intent(this, LiveLocationService.class));
}
您可以使用AlarmManager来安排此类任务，
在特定时间注册AlaramManger，检查服务是否为运行，如果是运行则停止服务。
这里是具体时间AlaramManager注册的例子
AlarmManager alarmManager = (AlarmManager) getActivityContext()
.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(getActivityContext(), AutoStopReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(getActivityContext(),
0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
alarmManager.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP,
stopServieTime, pendingIntent);
这里是接收器 Class,
public class AutoStopReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
//TODO Stop service from here
}
在AndroidMenifest.xml
中注册接收器
<receiver android:name=".AutoStopReceiver" />
我有一项服务可以捕获用户的位置并使用改造更新数据库。我想在每天晚上 8 点自动停止服务，如果它 运行 并且还更新用户在晚上 8 点打出的数据库。
我希望服务手动启动，但希望服务在未手动停止时自动停止。
这是我的服务class
public class LiveLocationService extends Service {
private static final String TAG = LiveLocationService.class.getSimpleName();
Retrofit retrofitClient;
CompositeDisposable compositeDisposable = new CompositeDisposable();
MyService myService;
String empCode, year, month, date;
FusedLocationProviderClient client;
LocationCallback locationCallback;
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
retrofitClient = RetrofitClient.getInstance();
myService = retrofitClient.create(MyService.class);
empCode = intent.getStringExtra("empCode");
year = intent.getStringExtra("year");
month = intent.getStringExtra("month");
date = intent.getStringExtra("date");
return super.onStartCommand(intent, flags, startId);
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
@RequiresApi(api = Build.VERSION_CODES.O)
@Override
public void onCreate() {
super.onCreate();
if (isOnline()) {
buildNotification();
requestLocationUpdates();
} else {
Log.e("MSER", "Please connect to the internet.");
}
}
private void buildNotification() {
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
String NOTIFICATION_CHANNEL_ID = "com.deepankmehta.managementservices";
String channelName = "My Background Service";
NotificationChannel chan = null;
chan = new NotificationChannel(NOTIFICATION_CHANNEL_ID, channelName, NotificationManager.IMPORTANCE_HIGH);
chan.setLightColor(Color.BLUE);
chan.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
assert manager != null;
manager.createNotificationChannel(chan);
PendingIntent intent = PendingIntent.getActivity(this, 0, new Intent(this, MainActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID);
Notification notification = notificationBuilder.setOngoing(true)
.setSmallIcon(R.drawable.mser)
.setContentTitle("xxxx")
.setContentText("xxxx is tracking your location.")
.setPriority(NotificationManager.IMPORTANCE_HIGH)
.setCategory(Notification.CATEGORY_SERVICE)
.setContentIntent(intent)
.build();
startForeground(2, notification);
} else {
PendingIntent broadcastIntent = PendingIntent.getActivity(
this, 0, new Intent(this, MainActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
// Create the persistent notification
NotificationCompat.Builder builder = new NotificationCompat.Builder(this)
.setContentTitle(getString(R.string.app_name))
.setContentText("xxxx is tracking your location.")
.setOngoing(true)
.setContentIntent(broadcastIntent)
.setSmallIcon(R.drawable.mser);
startForeground(1, builder.build());
}
}
private void requestLocationUpdates() {
if (isOnline()) {
LocationRequest request = new LocationRequest();
request.setInterval(10000);
request.setFastestInterval(5000);
request.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
client = LocationServices.getFusedLocationProviderClient(this);
int permission = ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION);
if (permission == PackageManager.PERMISSION_GRANTED) {
locationCallback = new LocationCallback() {
@Override
public void onLocationResult(LocationResult locationResult) {
Location location = locationResult.getLastLocation();
if (location != null) {
Log.d(TAG, "location update " + location);
double lat = location.getLatitude();
double lon = location.getLongitude();
final String time = new SimpleDateFormat("HH:mm", Locale.getDefault()).format(new Date());
compositeDisposable.add(myService.userLocation(empCode, year, month, date, time, lat, lon)
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Consumer< String >() {
@Override
public void accept(String s) throws Exception {
Log.e("data", s);
if (s.equals("\"done\"")) {
Log.e("status", "location punched");
}
}
}));
} else {
Log.d("MSER", "location update, no location found. ");
}
}
};
client.requestLocationUpdates(request, locationCallback, null);
} else {
Log.e("MSER", "Please enable location.");
}
} else {
Log.e("MSER", "Please connect to the internet.");
}
}
@Override
public void onDestroy() {
super.onDestroy();
client.removeLocationUpdates(locationCallback);
stopForeground(true);
stopSelf();
}
protected boolean isOnline() {
ConnectivityManager cm = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = cm.getActiveNetworkInfo();
if (netInfo != null && netInfo.isConnectedOrConnecting()) {
return true;
} else {
return false;
}
}
}
这里是首页activityclass启动服务和停止服务的方法。当用户分别点击进入和退出按钮时，将调用这些方法。
private void startTrackerService() {
final String date = new SimpleDateFormat("yyyy-MM-dd", Locale.getDefault()).format(new Date());
final String year = date.substring(0, 4);
final String month = date.substring(5, 7);
final String dateToday = date.substring(8, 10);
Intent intent = new Intent(this, LiveLocationService.class);
intent.putExtra("empCode", empCode);
intent.putExtra("year", year);
intent.putExtra("month", month);
intent.putExtra("date", dateToday);
startService(intent);
}
private void stopTrackerService() {
stopService(new Intent(this, LiveLocationService.class));
}
您可以使用AlarmManager来安排此类任务，
在特定时间注册AlaramManger，检查服务是否为运行，如果是运行则停止服务。
这里是具体时间AlaramManager注册的例子
AlarmManager alarmManager = (AlarmManager) getActivityContext()
.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(getActivityContext(), AutoStopReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(getActivityContext(),
0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
alarmManager.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP,
stopServieTime, pendingIntent);
这里是接收器 Class,
public class AutoStopReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
//TODO Stop service from here
}
在AndroidMenifest.xml
中注册接收器<receiver android:name=".AutoStopReceiver" />