Fetch home in background to cache messagesauto_cache_home

10 files changed, 404 insertions, 1 deletions

diff --git a/app/src/main/java/app/fedilab/android/mastodon/helper/Helper.java b/app/src/main/java/app/fedilab/android/mastodon/helper/Helper.java
index 448be2305..57336df24 100644
--- a/app/src/main/java/app/fedilab/android/mastodon/helper/Helper.java
+++ b/app/src/main/java/app/fedilab/android/mastodon/helper/Helper.java
@@ -276,6 +276,7 @@ public class Helper {
     public static final String ARG_SCHEDULED_DATE = "ARG_SCHEDULED_DATE";
 
     public static final String WORKER_REFRESH_NOTIFICATION = "WORKER_REFRESH_NOTIFICATION";
+    public static final String WORKER_REFRESH_HOME = "WORKER_REFRESH_HOME";
     public static final String WORKER_SCHEDULED_STATUSES = "WORKER_SCHEDULED_STATUSES";
     public static final String WORKER_SCHEDULED_REBLOGS = "WORKER_SCHEDULED_REBLOGS";
 
diff --git a/app/src/main/java/app/fedilab/android/mastodon/jobs/FetchHomeWorker.java b/app/src/main/java/app/fedilab/android/mastodon/jobs/FetchHomeWorker.java
new file mode 100644
index 000000000..f4c6a849a
--- /dev/null
+++ b/app/src/main/java/app/fedilab/android/mastodon/jobs/FetchHomeWorker.java
@@ -0,0 +1,223 @@
+package app.fedilab.android.mastodon.jobs;
+/* Copyright 2023 Thomas Schneider
+ *
+ * This file is a part of Fedilab
+ *
+ * This program is free software; you can redistribute it and/or modify it under the terms of the
+ * GNU General Public License as published by the Free Software Foundation; either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * Fedilab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
+ * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ * Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with Fedilab; if not,
+ * see <http://www.gnu.org/licenses>. */
+
+import android.app.Notification;
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.graphics.BitmapFactory;
+import android.os.Build;
+
+import androidx.annotation.NonNull;
+import androidx.core.app.NotificationCompat;
+import androidx.preference.PreferenceManager;
+import androidx.work.Data;
+import androidx.work.ExistingPeriodicWorkPolicy;
+import androidx.work.ForegroundInfo;
+import androidx.work.PeriodicWorkRequest;
+import androidx.work.WorkManager;
+import androidx.work.Worker;
+import androidx.work.WorkerParameters;
+
+import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.ListenableFuture;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+import app.fedilab.android.R;
+import app.fedilab.android.mastodon.client.endpoints.MastodonTimelinesService;
+import app.fedilab.android.mastodon.client.entities.api.Pagination;
+import app.fedilab.android.mastodon.client.entities.api.Status;
+import app.fedilab.android.mastodon.client.entities.app.Account;
+import app.fedilab.android.mastodon.client.entities.app.BaseAccount;
+import app.fedilab.android.mastodon.client.entities.app.StatusCache;
+import app.fedilab.android.mastodon.client.entities.app.Timeline;
+import app.fedilab.android.mastodon.exception.DBException;
+import app.fedilab.android.mastodon.helper.Helper;
+import app.fedilab.android.mastodon.helper.MastodonHelper;
+import okhttp3.OkHttpClient;
+import retrofit2.Call;
+import retrofit2.Response;
+import retrofit2.Retrofit;
+import retrofit2.converter.gson.GsonConverterFactory;
+
+
+public class FetchHomeWorker extends Worker {
+
+    private static final int FETCH_HOME_CHANNEL_ID = 5;
+    private static final String CHANNEL_ID = "fedilab_home";
+    final OkHttpClient okHttpClient = new OkHttpClient.Builder()
+            .readTimeout(60, TimeUnit.SECONDS)
+            .connectTimeout(60, TimeUnit.SECONDS)
+            .callTimeout(60, TimeUnit.SECONDS)
+            .proxy(Helper.getProxy(getApplicationContext().getApplicationContext()))
+            .build();
+    private final NotificationManager notificationManager;
+
+
+    public FetchHomeWorker(@NonNull Context context, @NonNull WorkerParameters workerParams) {
+        super(context, workerParams);
+        notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
+    }
+
+    public static void setRepeatHome(Context context, BaseAccount account) {
+        WorkManager.getInstance(context).cancelAllWorkByTag(Helper.WORKER_REFRESH_HOME + account.user_id + account.instance);
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        String value = prefs.getString(context.getString(R.string.SET_FETCH_HOME_DELAY_VALUE) + account.user_id + account.instance, "60");
+        PeriodicWorkRequest notificationPeriodic = new PeriodicWorkRequest.Builder(NotificationsWorker.class, Long.parseLong(value), TimeUnit.MINUTES)
+                .addTag(Helper.WORKER_REFRESH_NOTIFICATION)
+                .build();
+        WorkManager.getInstance(context).enqueueUniquePeriodicWork(Helper.WORKER_REFRESH_HOME + account.user_id + account.instance, ExistingPeriodicWorkPolicy.REPLACE, notificationPeriodic);
+    }
+
+    @NonNull
+    @Override
+    public ListenableFuture<ForegroundInfo> getForegroundInfoAsync() {
+        if (Build.VERSION.SDK_INT >= 26) {
+            String channelName = "Notifications";
+            String channelDescription = "Fetched notifications";
+            NotificationChannel notifChannel = new NotificationChannel(CHANNEL_ID, channelName, NotificationManager.IMPORTANCE_LOW);
+            notifChannel.setDescription(channelDescription);
+            notifChannel.setSound(null, null);
+            notifChannel.setShowBadge(false);
+            notificationManager.createNotificationChannel(notifChannel);
+            if (notificationManager.getNotificationChannel("notifications") != null) {
+                notificationManager.deleteNotificationChannel("notifications");
+            }
+
+        }
+        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(getApplicationContext(), CHANNEL_ID);
+        notificationBuilder.setSmallIcon(R.drawable.ic_notification)
+                .setLargeIcon(BitmapFactory.decodeResource(getApplicationContext().getResources(), R.drawable.ic_launcher_foreground))
+                .setContentTitle(getApplicationContext().getString(R.string.notifications))
+                .setContentText(getApplicationContext().getString(R.string.fetch_notifications))
+                .setDefaults(NotificationCompat.DEFAULT_ALL)
+                .setPriority(Notification.PRIORITY_DEFAULT);
+        return Futures.immediateFuture(new ForegroundInfo(FETCH_HOME_CHANNEL_ID, notificationBuilder.build()));
+    }
+
+    @NonNull
+    private ForegroundInfo createForegroundInfo() {
+        if (Build.VERSION.SDK_INT >= 26) {
+            String channelName = "Notifications";
+            String channelDescription = "Fetched notifications";
+            NotificationChannel notifChannel = new NotificationChannel(CHANNEL_ID, channelName, NotificationManager.IMPORTANCE_LOW);
+            notifChannel.setSound(null, null);
+            notifChannel.setShowBadge(false);
+            notifChannel.setDescription(channelDescription);
+            notificationManager.createNotificationChannel(notifChannel);
+
+        }
+        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(getApplicationContext(), CHANNEL_ID);
+        notificationBuilder.setSmallIcon(R.drawable.ic_notification)
+                .setLargeIcon(BitmapFactory.decodeResource(getApplicationContext().getResources(), R.drawable.ic_launcher_foreground))
+                .setContentTitle(getApplicationContext().getString(R.string.notifications))
+                .setContentText(getApplicationContext().getString(R.string.fetch_notifications))
+                .setDefaults(NotificationCompat.DEFAULT_ALL)
+                .setSilent(true)
+                .setPriority(Notification.PRIORITY_LOW);
+        return new ForegroundInfo(FETCH_HOME_CHANNEL_ID, notificationBuilder.build());
+    }
+
+    @NonNull
+    @Override
+    public Result doWork() {
+        setForegroundAsync(createForegroundInfo());
+        try {
+            List<BaseAccount> accounts = new Account(getApplicationContext()).getCrossAccounts();
+            for (BaseAccount account : accounts) {
+                try {
+                    fetchHome(getApplicationContext(), account);
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        } catch (DBException e) {
+            e.printStackTrace();
+        }
+        return Result.success(new Data.Builder().putString("WORK_RESULT", getApplicationContext().getString(R.string.notifications)).build());
+    }
+
+    private void fetchHome(Context context, BaseAccount account) throws IOException {
+        SharedPreferences prefs = PreferenceManager
+                .getDefaultSharedPreferences(context);
+        boolean fetch_home = prefs.getBoolean(context.getString(R.string.SET_FETCH_HOME) + account.user_id + account.instance, false);
+
+        if (fetch_home) {
+            int max_calls = 5;
+            int status_per_page = 80;
+            //Browse last 400 home messages
+            boolean canContinue = true;
+            int call = 0;
+            String max_id = null;
+            MastodonTimelinesService mastodonTimelinesService = init(account.instance);
+            while (canContinue && call < max_calls) {
+                Call<List<Status>> homeCall = mastodonTimelinesService.getHome(account.token, account.instance, max_id, null, status_per_page, null);
+                if (homeCall != null) {
+                    Response<List<Status>> homeResponse = homeCall.execute();
+                    if (homeResponse.isSuccessful()) {
+                        List<Status> statusList = homeResponse.body();
+                        if (statusList != null && statusList.size() > 0) {
+                            for (Status status : statusList) {
+                                StatusCache statusCacheDAO = new StatusCache(getApplicationContext());
+                                StatusCache statusCache = new StatusCache();
+                                statusCache.instance = account.instance;
+                                statusCache.user_id = account.user_id;
+                                statusCache.status = status;
+                                statusCache.type = Timeline.TimeLineEnum.HOME;
+                                statusCache.status_id = status.id;
+                                try {
+                                    int inserted = statusCacheDAO.insertOrUpdate(statusCache, Timeline.TimeLineEnum.HOME.getValue());
+                                    //We reached already cached messages
+                                    if (inserted == 0) {
+                                        canContinue = false;
+                                        break;
+                                    }
+                                } catch (DBException e) {
+                                    e.printStackTrace();
+                                }
+                            }
+                            Pagination pagination = MastodonHelper.getPagination(homeResponse.headers());
+                            if (pagination.max_id != null) {
+                                max_id = pagination.max_id;
+                            } else {
+                                canContinue = false;
+                            }
+                        } else {
+                            canContinue = false;
+                        }
+                    } else {
+                        canContinue = false;
+                    }
+                }
+                call++;
+            }
+
+        }
+    }
+
+    private MastodonTimelinesService init(String instance) {
+        Retrofit retrofit = new Retrofit.Builder()
+                .baseUrl("https://" + instance + "/api/v1/")
+                .addConverterFactory(GsonConverterFactory.create(Helper.getDateBuilder()))
+                .client(okHttpClient)
+                .build();
+        return retrofit.create(MastodonTimelinesService.class);
+    }
+}
diff --git a/app/src/main/java/app/fedilab/android/mastodon/jobs/NotificationsWorker.java b/app/src/main/java/app/fedilab/android/mastodon/jobs/NotificationsWorker.java
index 8e405468c..f708c4391 100644
--- a/app/src/main/java/app/fedilab/android/mastodon/jobs/NotificationsWorker.java
+++ b/app/src/main/java/app/fedilab/android/mastodon/jobs/NotificationsWorker.java
@@ -105,7 +105,7 @@ public class NotificationsWorker extends Worker {
     public Result doWork() {
         setForegroundAsync(createForegroundInfo());
         try {
-            List<BaseAccount> accounts = new Account(getApplicationContext()).getAll();
+            List<BaseAccount> accounts = new Account(getApplicationContext()).getCrossAccounts();
             for (BaseAccount account : accounts) {
                 try {
                     NotificationsHelper.task(getApplicationContext(), account.user_id + "@" + account.instance);
diff --git a/app/src/main/java/app/fedilab/android/mastodon/ui/fragment/settings/FragmentHomeCacheSettings.java b/app/src/main/java/app/fedilab/android/mastodon/ui/fragment/settings/FragmentHomeCacheSettings.java
new file mode 100644
index 000000000..3b1489a44
--- /dev/null
+++ b/app/src/main/java/app/fedilab/android/mastodon/ui/fragment/settings/FragmentHomeCacheSettings.java
@@ -0,0 +1,113 @@
+package app.fedilab.android.mastodon.ui.fragment.settings;
+/* Copyright 2023 Thomas Schneider
+ *
+ * This file is a part of Fedilab
+ *
+ * This program is free software; you can redistribute it and/or modify it under the terms of the
+ * GNU General Public License as published by the Free Software Foundation; either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * Fedilab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
+ * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ * Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with Fedilab; if not,
+ * see <http://www.gnu.org/licenses>. */
+
+
+import android.content.SharedPreferences;
+import android.os.Bundle;
+
+import androidx.preference.ListPreference;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+import androidx.preference.PreferenceScreen;
+import androidx.preference.SwitchPreference;
+import androidx.preference.SwitchPreferenceCompat;
+import androidx.work.WorkManager;
+
+import app.fedilab.android.R;
+import app.fedilab.android.activities.MainActivity;
+import app.fedilab.android.mastodon.helper.Helper;
+import app.fedilab.android.mastodon.jobs.FetchHomeWorker;
+import es.dmoral.toasty.Toasty;
+
+
+public class FragmentHomeCacheSettings extends PreferenceFragmentCompat implements SharedPreferences.OnSharedPreferenceChangeListener {
+
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        addPreferencesFromResource(R.xml.pref_home_cache);
+        createPref();
+    }
+
+
+    private void createPref() {
+
+        getPreferenceScreen().removeAll();
+        addPreferencesFromResource(R.xml.pref_home_cache);
+        PreferenceScreen preferenceScreen = getPreferenceScreen();
+        if (preferenceScreen == null) {
+            Toasty.error(requireActivity(), getString(R.string.toast_error), Toasty.LENGTH_SHORT).show();
+            return;
+        }
+        SharedPreferences sharedpreferences = PreferenceManager.getDefaultSharedPreferences(requireActivity());
+        SwitchPreferenceCompat SET_FETCH_HOME = findPreference(getString(R.string.SET_FETCH_HOME));
+        if (SET_FETCH_HOME != null) {
+            boolean checked = sharedpreferences.getBoolean(getString(R.string.SET_FETCH_HOME) + MainActivity.currentUserID + MainActivity.currentInstance, false);
+            SET_FETCH_HOME.setChecked(checked);
+        }
+
+        ListPreference SET_FETCH_HOME_DELAY_VALUE = findPreference(getString(R.string.SET_FETCH_HOME_DELAY_VALUE));
+        if (SET_FETCH_HOME_DELAY_VALUE != null) {
+            String timeRefresh = sharedpreferences.getString(getString(R.string.SET_FETCH_HOME_DELAY_VALUE) + MainActivity.currentUserID + MainActivity.currentInstance, "60");
+            SET_FETCH_HOME_DELAY_VALUE.setValue(timeRefresh);
+        }
+    }
+
+
+    @Override
+    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
+
+        if (key.compareToIgnoreCase(getString(R.string.SET_FETCH_HOME)) == 0) {
+            SharedPreferences.Editor editor = sharedPreferences.edit();
+            SwitchPreference SET_FETCH_HOME = findPreference(getString(R.string.SET_FETCH_HOME));
+            if (SET_FETCH_HOME != null) {
+                editor.putBoolean(getString(R.string.SET_FETCH_HOME) + MainActivity.currentUserID + MainActivity.currentInstance, SET_FETCH_HOME.isChecked());
+                editor.commit();
+                if (SET_FETCH_HOME.isChecked()) {
+                    FetchHomeWorker.setRepeatHome(requireActivity(), MainActivity.currentAccount);
+                } else {
+                    WorkManager.getInstance(requireActivity()).cancelAllWorkByTag(Helper.WORKER_REFRESH_HOME + MainActivity.currentUserID + MainActivity.currentInstance);
+                }
+            }
+        }
+        if (key.compareToIgnoreCase(getString(R.string.SET_FETCH_HOME_DELAY_VALUE)) == 0) {
+            ListPreference SET_FETCH_HOME_DELAY_VALUE = findPreference(getString(R.string.SET_FETCH_HOME_DELAY_VALUE));
+            if (SET_FETCH_HOME_DELAY_VALUE != null) {
+                SharedPreferences.Editor editor = sharedPreferences.edit();
+                editor.putString(getString(R.string.SET_FETCH_HOME_DELAY_VALUE) + MainActivity.currentUserID + MainActivity.currentInstance, SET_FETCH_HOME_DELAY_VALUE.getValue());
+                editor.commit();
+                FetchHomeWorker.setRepeatHome(requireActivity(), MainActivity.currentAccount);
+            }
+        }
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+
+        getPreferenceScreen().getSharedPreferences()
+                .registerOnSharedPreferenceChangeListener(this);
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        getPreferenceScreen().getSharedPreferences()
+                .unregisterOnSharedPreferenceChangeListener(this);
+    }
+
+
+}
diff --git a/app/src/main/java/app/fedilab/android/mastodon/ui/fragment/settings/FragmentSettingsCategories.java b/app/src/main/java/app/fedilab/android/mastodon/ui/fragment/settings/FragmentSettingsCategories.java
index f67e940fb..11b9cfc85 100644
--- a/app/src/main/java/app/fedilab/android/mastodon/ui/fragment/settings/FragmentSettingsCategories.java
+++ b/app/src/main/java/app/fedilab/android/mastodon/ui/fragment/settings/FragmentSettingsCategories.java
@@ -112,6 +112,15 @@ public class FragmentSettingsCategories extends PreferenceFragmentCompat {
             });
         }
 
+        Preference pref_category_key_home_cache = findPreference(getString(R.string.pref_category_key_home_cache));
+        if (pref_category_key_home_cache != null) {
+            pref_category_key_home_cache.setOnPreferenceClickListener(preference -> {
+                NavController navController = Navigation.findNavController(requireActivity(), R.id.fragment_container);
+                navController.navigate(FragmentSettingsCategoriesDirections.Companion.categoriesToHomeCache());
+                return false;
+            });
+        }
+
         Preference pref_category_key_theming = findPreference(getString(R.string.pref_category_key_theming));
         if (pref_category_key_theming != null) {
             pref_category_key_theming.setOnPreferenceClickListener(preference -> {
diff --git a/app/src/main/res/layouts/mastodon/values/strings.xml b/app/src/main/res/layouts/mastodon/values/strings.xml
new file mode 100644
index 000000000..cc30206fc
--- /dev/null
+++ b/app/src/main/res/layouts/mastodon/values/strings.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="fetch_home_every">Fetch Home every</string>
+    <string name="type_of_home_delay_title">Home fetch time</string>
+    <string name="set_fetch_home">Automatically fetch home messages</string>
+    <string name="home_cache">Home cache</string>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/navigation/nav_graph_settings.xml b/app/src/main/res/navigation/nav_graph_settings.xml
index d7284ea2f..e52f44e4f 100644
--- a/app/src/main/res/navigation/nav_graph_settings.xml
+++ b/app/src/main/res/navigation/nav_graph_settings.xml
@@ -54,6 +54,14 @@
             app:popExitAnim="@anim/pop_exit" />
 
         <action
+            android:id="@+id/categories_to_home_cache"
+            app:destination="@id/FragmentHomeCacheSettings"
+            app:enterAnim="@anim/enter"
+            app:exitAnim="@anim/exit"
+            app:popEnterAnim="@anim/pop_enter"
+            app:popExitAnim="@anim/pop_exit" />
+
+        <action
             android:id="@+id/categories_to_theming"
             app:destination="@id/FragmentThemingSettings"
             app:enterAnim="@anim/enter"
@@ -104,6 +112,11 @@
         android:label="@string/action_privacy" />
 
     <fragment
+        android:id="@+id/FragmentHomeCacheSettings"
+        android:name="app.fedilab.android.mastodon.ui.fragment.settings.FragmentHomeCacheSettings"
+        android:label="@string/home_cache" />
+
+    <fragment
         android:id="@+id/FragmentThemingSettings"
         android:name="app.fedilab.android.mastodon.ui.fragment.settings.FragmentThemingSettings"
         android:label="@string/theming" />
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 3d22fa5b0..92c5c292b 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -827,6 +827,8 @@
     <string name="SET_PROXY_HOST" translatable="false">SET_PROXY_HOST</string>
     <string name="SET_PROXY_PORT" translatable="false">SET_PROXY_PORT</string>
     <string name="SET_DEFAULT_LOCALE_NEW" translatable="false">SET_DEFAULT_LOCALE_NEW</string>
+    <string name="SET_FETCH_HOME_DELAY_VALUE" translatable="false">SET_FETCH_HOME_DELAY_VALUE</string>
+
     <string name="SET_SEND_CRASH_REPORTS" translatable="false">SET_SEND_CRASH_REPORTS</string>
     <string name="SET_DISABLE_RELEASE_NOTES_ALERT" translatable="false">SET_DISABLE_RELEASE_NOTES_ALERT</string>
     <string name="SET_DISABLE_GIF" translatable="false">SET_DISABLE_GIF</string>
@@ -1431,6 +1433,7 @@
     <string name="SET_COMPOSE_LANGUAGE" translatable="false">SET_COMPOSE_LANGUAGE</string>
     <string name="SET_LOGO_LAUNCHER" translatable="false">SET_LOGO_LAUNCHER</string>
     <string name="SET_NOTIF_FOLLOW" translatable="false">SET_NOTIF_FOLLOW</string>
+    <string name="SET_FETCH_HOME" translatable="false">SET_FETCH_HOME</string>
     <string name="SET_NOTIF_MENTION" translatable="false">SET_NOTIF_MENTION</string>
     <string name="SET_NOTIF_SHARE" translatable="false">SET_NOTIF_SHARE</string>
     <string name="SET_NOTIF_FAVOURITE" translatable="false">SET_NOTIF_FAVOURITE</string>
@@ -1996,6 +1999,7 @@
     <string name="pref_category_key_interface" translatable="false">pref_category_interface</string>
     <string name="pref_category_key_compose" translatable="false">pref_category_compose</string>
     <string name="pref_category_key_privacy" translatable="false">pref_category_privacy</string>
+    <string name="pref_category_key_home_cache" translatable="false">pref_category_key_home_cache</string>
     <string name="pref_category_key_theming" translatable="false">pref_category_theming</string>
     <string name="pref_category_key_administration" translatable="false">pref_category_administration</string>
     <string name="pref_category_key_languages" translatable="false">pref_category_languages</string>
diff --git a/app/src/main/res/xml/pref_categories.xml b/app/src/main/res/xml/pref_categories.xml
index 826f560c5..3cd38c884 100644
--- a/app/src/main/res/xml/pref_categories.xml
+++ b/app/src/main/res/xml/pref_categories.xml
@@ -49,6 +49,13 @@
     <Preference
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
+        android:title="@string/home_cache"
+        app:icon="@drawable/ic_baseline_cached_24"
+        app:key="@string/pref_category_key_home_cache" />
+
+    <Preference
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
         android:title="@string/theming"
         app:icon="@drawable/ic_theming"
         app:key="@string/pref_category_key_theming" />
diff --git a/app/src/main/res/xml/pref_home_cache.xml b/app/src/main/res/xml/pref_home_cache.xml
new file mode 100644
index 000000000..212449c14
--- /dev/null
+++ b/app/src/main/res/xml/pref_home_cache.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <SwitchPreferenceCompat
+        app:defaultValue="false"
+        app:iconSpaceReserved="false"
+        app:key="@string/SET_FETCH_HOME"
+        app:singleLineTitle="false"
+        app:title="@string/set_fetch_home" />
+
+    <ListPreference
+        app:defaultValue="60"
+        app:dependency="@string/SET_FETCH_HOME"
+        app:dialogTitle="@string/fetch_home_every"
+        app:entries="@array/set_notification_delay_values"
+        app:entryValues="@array/SET_NOTIFICATION_DELAYS_VALUES"
+        app:iconSpaceReserved="false"
+        app:key="@string/SET_FETCH_HOME_DELAY_VALUE"
+        app:summary="@string/set_push_notifications_delay"
+        app:title="@string/type_of_home_delay_title"
+        app:useSimpleSummaryProvider="true" />
+
+</PreferenceScreen>
\ No newline at end of file