#230 Background synchronization

Make setting to en/disable the background sync (Off, 15 Minutes, 1 Hour, 6 Hours)

2 files changed, 33 insertions, 8 deletions

diff --git a/app/src/main/java/it/niedermann/nextcloud/deck/persistence/sync/SyncWorker.java b/app/src/main/java/it/niedermann/nextcloud/deck/persistence/sync/SyncWorker.java
index 1f6947461..a3dcc624d 100644
--- a/app/src/main/java/it/niedermann/nextcloud/deck/persistence/sync/SyncWorker.java
+++ b/app/src/main/java/it/niedermann/nextcloud/deck/persistence/sync/SyncWorker.java
@@ -43,16 +43,30 @@ public class SyncWorker extends Worker {
     }
 
     public static void register(@NonNull Context context) {
-        Constraints constraints = new Constraints.Builder()
-                .setRequiredNetworkType(NetworkType.CONNECTED)
-                .build();
-        PeriodicWorkRequest work = new PeriodicWorkRequest.Builder(SyncWorker.class, PeriodicWorkRequest.MIN_PERIODIC_INTERVAL_MILLIS, TimeUnit.MILLISECONDS)
-                .setConstraints(constraints)
-                .build();
-        WorkManager.getInstance(context.getApplicationContext()).enqueueUniquePeriodicWork(SyncWorker.TAG, ExistingPeriodicWorkPolicy.KEEP, work);
+        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context.getApplicationContext());
+        String backgroundSync = sharedPreferences.getString(context.getString(R.string.pref_key_background_sync), context.getString(R.string.pref_value_background_15_minutes));
+        if (!context.getString(R.string.pref_value_background_sync_off).equals(backgroundSync)) {
+            int repeatInterval = 15;
+            TimeUnit unit = TimeUnit.MINUTES;
+            if (context.getString(R.string.pref_value_background_1_hour).equals(backgroundSync)) {
+                repeatInterval = 1;
+                unit = TimeUnit.HOURS;
+            } else if (context.getString(R.string.pref_value_background_6_hours).equals(backgroundSync)) {
+                repeatInterval = 6;
+                unit = TimeUnit.HOURS;
+            }
+            Constraints constraints = new Constraints.Builder()
+                    .setRequiredNetworkType(NetworkType.CONNECTED)
+                    .build();
+            PeriodicWorkRequest work = new PeriodicWorkRequest.Builder(SyncWorker.class, repeatInterval, unit)
+                    .setConstraints(constraints).build();
+            WorkManager.getInstance(context.getApplicationContext()).enqueueUniquePeriodicWork(SyncWorker.TAG, ExistingPeriodicWorkPolicy.REPLACE, work);
+        } else {
+            deregister(context);
+        }
     }
 
-    public static void deregister(@NonNull Context context) {
+    private static void deregister(@NonNull Context context) {
         WorkManager.getInstance(context.getApplicationContext()).cancelAllWorkByTag(TAG);
     }
 }
diff --git a/app/src/main/java/it/niedermann/nextcloud/deck/ui/settings/SettingsFragment.java b/app/src/main/java/it/niedermann/nextcloud/deck/ui/settings/SettingsFragment.java
index bf9e13213..4925c447d 100644
--- a/app/src/main/java/it/niedermann/nextcloud/deck/ui/settings/SettingsFragment.java
+++ b/app/src/main/java/it/niedermann/nextcloud/deck/ui/settings/SettingsFragment.java
@@ -2,6 +2,7 @@ package it.niedermann.nextcloud.deck.ui.settings;
 
 import android.app.Activity;
 import android.os.Bundle;
+import android.preference.ListPreference;
 import android.preference.Preference;
 import android.preference.PreferenceFragment;
 import android.preference.SwitchPreference;
@@ -13,6 +14,7 @@ import butterknife.ButterKnife;
 import it.niedermann.nextcloud.deck.Application;
 import it.niedermann.nextcloud.deck.DeckLog;
 import it.niedermann.nextcloud.deck.R;
+import it.niedermann.nextcloud.deck.persistence.sync.SyncWorker;
 
 public class SettingsFragment extends PreferenceFragment {
 
@@ -20,6 +22,8 @@ public class SettingsFragment extends PreferenceFragment {
     String prefKeyWifiOnly;
     @BindString(R.string.pref_key_dark_theme)
     String prefKeyDarkTheme;
+    @BindString(R.string.pref_key_background_sync)
+    String prefKeyBackgroundSync;
 
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
@@ -45,5 +49,12 @@ public class SettingsFragment extends PreferenceFragment {
             getActivity().recreate();
             return true;
         });
+
+        final ListPreference backgroundSyncPref = (ListPreference) findPreference(prefKeyBackgroundSync);
+        backgroundSyncPref.setOnPreferenceChangeListener((Preference preference, Object newValue) -> {
+            DeckLog.log("backgroundSync: " + newValue);
+            SyncWorker.register(getActivity().getApplicationContext());
+            return true;
+        });
     }
 }