Do not ANR when calling SyncService.enqueue during sync
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2386684b7f
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@ -41,6 +41,8 @@ import de.danoeh.antennapod.core.sync.model.SyncServiceException;
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import de.danoeh.antennapod.core.sync.model.UploadChangesResponse;
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import de.danoeh.antennapod.core.util.URLChecker;
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import de.danoeh.antennapod.core.util.gui.NotificationUtils;
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import io.reactivex.Completable;
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import io.reactivex.schedulers.Schedulers;
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import org.apache.commons.lang3.StringUtils;
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import org.greenrobot.eventbus.EventBus;
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import org.json.JSONArray;
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@ -50,6 +52,7 @@ import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.locks.ReentrantLock;
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public class SyncService extends Worker {
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private static final String PREF_NAME = "SyncService";
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@ -62,7 +65,7 @@ public class SyncService extends Worker {
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private static final String PREF_LAST_SYNC_ATTEMPT_SUCCESS = "last_sync_attempt_success";
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private static final String TAG = "SyncService";
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private static final String WORK_ID_SYNC = "SyncServiceWorkId";
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private static final Object lock = new Object();
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private static final ReentrantLock lock = new ReentrantLock();
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private ISyncService syncServiceImpl;
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@ -100,7 +103,7 @@ public class SyncService extends Worker {
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}
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public static void clearQueue(Context context) {
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synchronized (lock) {
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executeLockedAsync(() ->
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context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE).edit()
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.putLong(PREF_LAST_SUBSCRIPTION_SYNC_TIMESTAMP, 0)
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.putLong(PREF_LAST_EPISODE_ACTIONS_SYNC_TIMESTAMP, 0)
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@ -108,15 +111,14 @@ public class SyncService extends Worker {
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.putString(PREF_QUEUED_EPISODE_ACTIONS, "[]")
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.putString(PREF_QUEUED_FEEDS_ADDED, "[]")
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.putString(PREF_QUEUED_FEEDS_REMOVED, "[]")
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.apply();
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}
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.apply());
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}
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public static void enqueueFeedAdded(Context context, String downloadUrl) {
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if (!GpodnetPreferences.loggedIn()) {
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return;
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}
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synchronized (lock) {
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executeLockedAsync(() -> {
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try {
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SharedPreferences prefs = context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
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String json = prefs.getString(PREF_QUEUED_FEEDS_ADDED, "[]");
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@ -126,15 +128,15 @@ public class SyncService extends Worker {
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} catch (JSONException e) {
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e.printStackTrace();
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}
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}
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sync(context);
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});
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}
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public static void enqueueFeedRemoved(Context context, String downloadUrl) {
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if (!GpodnetPreferences.loggedIn()) {
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return;
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}
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synchronized (lock) {
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executeLockedAsync(() -> {
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try {
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SharedPreferences prefs = context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
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String json = prefs.getString(PREF_QUEUED_FEEDS_REMOVED, "[]");
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@ -144,15 +146,15 @@ public class SyncService extends Worker {
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} catch (JSONException e) {
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e.printStackTrace();
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}
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}
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sync(context);
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});
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}
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public static void enqueueEpisodeAction(Context context, EpisodeAction action) {
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if (!GpodnetPreferences.loggedIn()) {
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return;
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}
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synchronized (lock) {
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executeLockedAsync(() -> {
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try {
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SharedPreferences prefs = context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
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String json = prefs.getString(PREF_QUEUED_EPISODE_ACTIONS, "[]");
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@ -162,8 +164,8 @@ public class SyncService extends Worker {
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} catch (JSONException e) {
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e.printStackTrace();
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}
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}
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sync(context);
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});
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}
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public static void sync(Context context) {
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@ -181,19 +183,20 @@ public class SyncService extends Worker {
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}
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public static void fullSync(Context context) {
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synchronized (lock) {
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executeLockedAsync(() -> {
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context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE).edit()
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.putLong(PREF_LAST_SUBSCRIPTION_SYNC_TIMESTAMP, 0)
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.putLong(PREF_LAST_EPISODE_ACTIONS_SYNC_TIMESTAMP, 0)
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.putLong(PREF_LAST_SYNC_ATTEMPT_TIMESTAMP, 0)
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.apply();
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}
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OneTimeWorkRequest workRequest = getWorkRequest()
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.setInitialDelay(0L, TimeUnit.SECONDS)
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.setBackoffCriteria(BackoffPolicy.EXPONENTIAL, 1, TimeUnit.MINUTES)
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.build();
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WorkManager.getInstance(context).enqueueUniqueWork(WORK_ID_SYNC, ExistingWorkPolicy.REPLACE, workRequest);
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EventBus.getDefault().postSticky(new SyncServiceEvent(R.string.sync_status_started));
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});
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}
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private static OneTimeWorkRequest.Builder getWorkRequest() {
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@ -209,6 +212,30 @@ public class SyncService extends Worker {
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.setInitialDelay(5L, TimeUnit.SECONDS); // Give it some time, so other actions can be queued
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}
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/**
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* Take the lock and execute runnable (to prevent changes to preferences being lost when enqueueing while sync is
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* in progress). If the lock is free, the runnable is directly executed in the calling thread to prevent overhead.
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*/
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private static void executeLockedAsync(Runnable runnable) {
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if (lock.tryLock()) {
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try {
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runnable.run();
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} finally {
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lock.unlock();
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}
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} else {
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Completable.fromRunnable(() -> {
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lock.lock();
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try {
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runnable.run();
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} finally {
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lock.unlock();
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}
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}).subscribeOn(Schedulers.io())
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.subscribe();
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}
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}
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public static boolean isLastSyncSuccessful(Context context) {
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return context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE)
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.getBoolean(PREF_LAST_SYNC_ATTEMPT_SUCCESS, false);
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@ -304,7 +331,8 @@ public class SyncService extends Worker {
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Log.d(TAG, "Added: " + StringUtils.join(queuedAddedFeeds, ", "));
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Log.d(TAG, "Removed: " + StringUtils.join(queuedRemovedFeeds, ", "));
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synchronized (lock) {
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lock.lock();
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try {
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UploadChangesResponse uploadResponse = syncServiceImpl
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.uploadSubscriptionChanges(queuedAddedFeeds, queuedRemovedFeeds);
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getApplicationContext().getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE).edit()
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@ -312,6 +340,8 @@ public class SyncService extends Worker {
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getApplicationContext().getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE).edit()
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.putString(PREF_QUEUED_FEEDS_REMOVED, "[]").apply();
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newTimeStamp = uploadResponse.timestamp;
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} finally {
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lock.unlock();
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}
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}
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getApplicationContext().getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE).edit()
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@ -349,7 +379,8 @@ public class SyncService extends Worker {
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}
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}
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if (queuedEpisodeActions.size() > 0) {
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synchronized (lock) {
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lock.lock();
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try {
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Log.d(TAG, "Uploading " + queuedEpisodeActions.size() + " actions: "
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+ StringUtils.join(queuedEpisodeActions, ", "));
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UploadChangesResponse postResponse = syncServiceImpl.uploadEpisodeActions(queuedEpisodeActions);
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@ -357,6 +388,8 @@ public class SyncService extends Worker {
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Log.d(TAG, "Upload episode response: " + postResponse);
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getApplicationContext().getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE).edit()
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.putString(PREF_QUEUED_EPISODE_ACTIONS, "[]").apply();
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} finally {
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lock.unlock();
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}
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}
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getApplicationContext().getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE).edit()
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