[英]Android Work manager get triggered everytime I open my app
我做了一個周期性的工作經理,它的行為舉止很嚴重。 它不是在設定的時間間隔內執行一項工作,而是每分鍾執行一次。 每次我打開應用程序時都會觸發它。 這意味着如果我在一分鍾內打開我的應用程序 50 次,它會完成 50 次工作。 這是我的代碼
public class UpdateUserDataService extends Worker {
public UpdateUserDataService(@NonNull Context context, @NonNull WorkerParameters workerParams) {
super(context, workerParams);
}
@RequiresApi(api = Build.VERSION_CODES.O)
@NonNull
@Override
public Result doWork() {
FirebaseMessaging.getInstance().getToken().addOnSuccessListener(s -> {
DatabaseReference reference = FirebaseDatabase.getInstance().getReference("Update");
SimpleDateFormat dateFormat = new SimpleDateFormat("dd-MMM-yyyy_h:mm a", Locale.getDefault());
Calendar c = Calendar.getInstance();
String currentDate = dateFormat.format(c.getTime());
JobFooter jobFooter = new JobFooter(currentDate, s);
reference.child(dateFormat.format(new Date())).setValue(jobFooter);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Intent notificationIntent = new Intent(getApplicationContext(), MainActivity.class);
notificationIntent.putExtra("Notification", true);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent = PendingIntent.getActivity(getApplicationContext(), 0,
notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationHelper notificationHelper = new NotificationHelper(getApplicationContext(), defaultSoundUri);
Notification.Builder notificationBuilder = notificationHelper.getNotification("Title", currentDate, intent);
notificationHelper.notify(10, notificationBuilder);
});
return Result.success();
}
}
在我的主要活動中 oncreate 方法
Constraints constraints = new Constraints.Builder()
.setRequiredNetworkType(NetworkType.CONNECTED)
.setRequiresBatteryNotLow(true)
.build();
PeriodicWorkRequest periodicWorkRequest = new PeriodicWorkRequest.Builder(
UpdateUserDataService.class, 15, TimeUnit.MINUTES)
.setConstraints(constraints)
.build();
WorkManager.getInstance(this).enqueue(periodicWorkRequest);
我想要的只是我的代碼在遵循操作系統規范和約束后每 15 分鍾執行一次,而不管我的應用程序是否打開。
String EXPIRY_CHECK = "unique_worker_name";
Constraints constraints = new Constraints.Builder()
.setRequiresBatteryNotLow(true)
.build();
PeriodicWorkRequest periodicWorkRequest = new PeriodicWorkRequest
.Builder(UpdateUserDataService.class, 1, TimeUnit.DAYS)
.setConstraints(constraints).build();
WorkManager.getInstance(this)
.enqueueUniquePeriodicWork(EXPIRY_CHECK, ExistingPeriodicWorkPolicy.KEEP, periodicWorkRequest);
這將檢查一個已經存在的工作人員是否已初始化,如果它已經在運行,則不會啟動一個新工作人員。
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