Allow to disable auto updates

app/src/main/java/de/danoeh/antennapod/preferences/PreferenceController.java

@@ -1190,7 +1190,7 @@ public class PreferenceController implements SharedPreferences.OnSharedPreferenc
             timePickerDialog.show();
         });
         builder.onNeutral((dialog, which) -> {
-            UserPreferences.setUpdateInterval(0);
+            UserPreferences.disableAutoUpdate();
             setUpdateIntervalText();
         });
         builder.show();

core/src/main/java/de/danoeh/antennapod/core/preferences/UserPreferences.java

@@ -575,6 +575,13 @@ public class UserPreferences {
         restartUpdateAlarm();
     }
 
+    public static void disableAutoUpdate() {
+        prefs.edit()
+                .putString(PREF_UPDATE_INTERVAL, "0")
+                .apply();
+        AutoUpdateManager.disableAutoUpdate();
+    }
+
     /**
      * Change the auto-flattr settings
      *

core/src/main/java/de/danoeh/antennapod/core/util/download/AutoUpdateManager.java

@@ -60,6 +60,10 @@ public class AutoUpdateManager {
         WorkManager.getInstance().enqueueUniqueWork(WORK_ID_FEED_UPDATE, ExistingWorkPolicy.REPLACE, workRequest);
     }
 
+    public static void disableAutoUpdate() {
+        WorkManager.getInstance().cancelUniqueWork(WORK_ID_FEED_UPDATE);
+    }
+
     private static Constraints getConstraints() {
         Constraints.Builder constraints = new Constraints.Builder();