Closes #33.

* New translations strings.xml (Spanish)

* New translations strings.xml (Galician)

* New translations strings.xml (French)

CHANGELOG.md

@@ -1,9 +1,13 @@
 **1.7.x**
 
+- Closes #33. Background sync with settings.
+
 - Closing #1. Initial article caching.
 
 - Closing #228 by removing the list action bar. Action buttons are exclusively on the card view from now on.
 
+- Closing #38. Only doing api calls on network available.
+
 **1.6.x**
 
 - Handling hidden tags.

app/build.gradle

@@ -160,6 +160,8 @@ dependencies {
 
     implementation "androidx.room:room-runtime:$room_version"
     kapt "androidx.room:room-compiler:$room_version"
+
+    implementation "android.arch.work:work-runtime-ktx:$work_version"
 }
 
 

app/src/main/AndroidManifest.xml

@@ -3,6 +3,7 @@
     package="apps.amine.bou.readerforselfoss"
     xmlns:tools="http://schemas.android.com/tools">
 
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.INTERNET" />
 
     <application

app/src/main/java/apps/amine/bou/readerforselfoss/HomeActivity.kt

@@ -25,6 +25,12 @@ import android.view.View
 import android.widget.Toast
 import androidx.room.Room
 import androidx.room.RoomDatabase
+import androidx.work.Constraints
+import androidx.work.ExistingPeriodicWorkPolicy
+import androidx.work.NetworkType
+import androidx.work.OneTimeWorkRequestBuilder
+import androidx.work.PeriodicWorkRequestBuilder
+import androidx.work.WorkManager
 import apps.amine.bou.readerforselfoss.adapters.ItemCardAdapter
 import apps.amine.bou.readerforselfoss.adapters.ItemListAdapter
 import apps.amine.bou.readerforselfoss.adapters.ItemsAdapter
@@ -34,6 +40,7 @@ import apps.amine.bou.readerforselfoss.api.selfoss.Source
 import apps.amine.bou.readerforselfoss.api.selfoss.Stats
 import apps.amine.bou.readerforselfoss.api.selfoss.SuccessResponse
 import apps.amine.bou.readerforselfoss.api.selfoss.Tag
+import apps.amine.bou.readerforselfoss.background.LoadingWorker
 import apps.amine.bou.readerforselfoss.persistence.database.AppDatabase
 import apps.amine.bou.readerforselfoss.persistence.migrations.MIGRATION_1_2
 import apps.amine.bou.readerforselfoss.settings.SettingsActivity
@@ -47,6 +54,7 @@ import apps.amine.bou.readerforselfoss.utils.drawer.CustomUrlPrimaryDrawerItem
 import apps.amine.bou.readerforselfoss.utils.flattenTags
 import apps.amine.bou.readerforselfoss.utils.longHash
 import apps.amine.bou.readerforselfoss.utils.maybeHandleSilentException
+import apps.amine.bou.readerforselfoss.utils.network.isNetworkAccessible
 import apps.amine.bou.readerforselfoss.utils.persistence.toEntity
 import apps.amine.bou.readerforselfoss.utils.persistence.toView
 import co.zsmb.materialdrawerkt.builders.accountHeader
@@ -74,6 +82,7 @@ import org.acra.ACRA
 import retrofit2.Call
 import retrofit2.Callback
 import retrofit2.Response
+import java.util.concurrent.TimeUnit
 import kotlin.concurrent.thread
 
 class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
@@ -110,6 +119,10 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
     private var itemsCaching: Boolean = false
     private var hiddenTags: List<String> = emptyList()
 
+    private var periodicRefresh = false
+    private var refreshMinutes: Long = 360L
+    private var refreshWhenChargingOnly = false
+
     private lateinit var tabNewBadge: TextBadgeItem
     private lateinit var tabArchiveBadge: TextBadgeItem
     private lateinit var tabStarredBadge: TextBadgeItem
@@ -203,7 +216,7 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
                     recyclerView: RecyclerView,
                     viewHolder: RecyclerView.ViewHolder
                 ): Int =
-                    if (elementsShown != UNREAD_SHOWN) {
+                    if (elementsShown != UNREAD_SHOWN || !this@HomeActivity.isNetworkAccessible(null)) {
                         0
                     } else {
                         super.getSwipeDirs(
@@ -333,8 +346,9 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
 
         getElementsAccordingToTab()
 
-
         handleGDPRDialog(sharedPref.getBoolean("GDPR_shown", false))
+
+        handleRecurringTask()
     }
 
     private fun getAndStoreAllItems() {
@@ -384,6 +398,13 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
         } else {
             emptyList()
         }
+        periodicRefresh = sharedPref.getBoolean("periodic_refresh", false)
+        refreshWhenChargingOnly = sharedPref.getBoolean("refresh_when_charging", false)
+        refreshMinutes = sharedPref.getString("periodic_refresh_minutes", "360").toLong()
+
+        if (refreshMinutes <= 15) {
+            refreshMinutes = 15
+        }
     }
 
     private fun handleThemeBinding() {
@@ -696,6 +717,7 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
             var sources: List<Source>?
 
             fun sourcesApiCall() {
+                if (this@HomeActivity.isNetworkAccessible(null)) {
                     api.sources.enqueue(object : Callback<List<Source>> {
                         override fun onResponse(
                             call: Call<List<Source>>?,
@@ -712,7 +734,9 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
                         }
                     })
                 }
+            }
 
+            if (this@HomeActivity.isNetworkAccessible(null)) {
                 api.tags.enqueue(object : Callback<List<Tag>> {
                     override fun onResponse(
                         call: Call<List<Tag>>,
@@ -727,6 +751,7 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
                     }
                 })
             }
+        }
 
         drawer.addItem(
             PrimaryDrawerItem().withName(getString(R.string.drawer_loading)).withSelectable(
@@ -817,12 +842,52 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
             override fun onTabSelected(position: Int) {
                 offset = 0
                 lastFetchDone = false
+
+                if (itemsCaching) {
+
+                    if (!swipeRefreshLayout.isRefreshing) {
+                        swipeRefreshLayout.post { swipeRefreshLayout.isRefreshing = true }
+                    }
+
+                    thread {
+                        val dbItems = db.itemsDao().items().map { it.toView() }
+                        runOnUiThread {
+                            if (dbItems.isNotEmpty()) {
+                                items = when (position) {
+                                    0 -> ArrayList(dbItems.filter { it.unread })
+                                    1 -> ArrayList(dbItems.filter { !it.unread })
+                                    2 -> ArrayList(dbItems.filter { it.starred })
+                                    else -> ArrayList(dbItems.filter { it.unread })
+                                }
+                                handleListResult()
                                 when (position) {
                                     0 -> getUnRead()
                                     1 -> getRead()
                                     2 -> getStarred()
                                     else -> Unit
                                 }
+                            } else {
+                                if (this@HomeActivity.isNetworkAccessible(this@HomeActivity.findViewById(R.id.coordLayout))) {
+                                    when (position) {
+                                        0 -> getUnRead()
+                                        1 -> getRead()
+                                        2 -> getStarred()
+                                        else -> Unit
+                                    }
+                                    getAndStoreAllItems()
+                                }
+                            }
+                        }
+                    }
+
+                } else {
+                    when (position) {
+                        0 -> getUnRead()
+                        1 -> getRead()
+                        2 -> getStarred()
+                        else -> Unit
+                    }
+                }
             }
         })
     }
@@ -899,11 +964,13 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
                         handleListResult()
                         doGetAccordingToTab()
                     } else {
+                        if (this@HomeActivity.isNetworkAccessible(this@HomeActivity.findViewById(R.id.coordLayout))) {
                             doGetAccordingToTab()
                             getAndStoreAllItems()
                         }
                     }
                 }
+            }
 
         } else {
             doGetAccordingToTab()
@@ -956,6 +1023,7 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
             swipeRefreshLayout.post { swipeRefreshLayout.isRefreshing = true }
         }
 
+        if (this@HomeActivity.isNetworkAccessible(this@HomeActivity.findViewById(R.id.coordLayout))) {
             call(maybeTagFilter?.tag, maybeSourceFilter?.id?.toLong(), maybeSearchFilter)
                 .enqueue(object : Callback<List<Item>> {
                     override fun onResponse(
@@ -974,6 +1042,9 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
                         ).show()
                     }
                 })
+        } else {
+            swipeRefreshLayout.post { swipeRefreshLayout.isRefreshing = false }
+        }
     }
 
     private fun getUnRead(appendResults: Boolean = false) {
@@ -1082,7 +1153,7 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
     }
 
     private fun reloadBadges() {
-        if (displayUnreadCount || displayAllCount) {
+        if (this@HomeActivity.isNetworkAccessible(null) && (displayUnreadCount || displayAllCount)) {
             api.stats.enqueue(object : Callback<Stats> {
                 override fun onResponse(call: Call<Stats>, response: Response<Stats>) {
                     if (response.body() != null) {
@@ -1188,6 +1259,7 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
         when (item.itemId) {
             R.id.refresh -> {
+                if (this@HomeActivity.isNetworkAccessible(null)) {
                     needsConfirmation(R.string.menu_home_refresh, R.string.refresh_dialog_message) {
                         api.update().enqueue(object : Callback<String> {
                             override fun onResponse(
@@ -1212,9 +1284,12 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
                         Toast.makeText(this, R.string.refresh_in_progress, Toast.LENGTH_SHORT).show()
                     }
                     return true
+                } else {
+                    return false
+                }
             }
             R.id.readAll -> {
-                if (elementsShown == UNREAD_SHOWN) {
+                if (elementsShown == UNREAD_SHOWN && this@HomeActivity.isNetworkAccessible(null)) {
                     needsConfirmation(R.string.readAll, R.string.markall_dialog_message) {
                         swipeRefreshLayout.isRefreshing = false
                         val ids = allItems.map { it.id }
@@ -1334,5 +1409,24 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
             alertDialog.show()
         }
     }
+
+    private fun handleRecurringTask() {
+        if (periodicRefresh) {
+            val myConstraints = Constraints.Builder()
+                .setRequiresBatteryNotLow(true)
+                .setRequiresCharging(refreshWhenChargingOnly)
+                .setRequiresStorageNotLow(true)
+                .build()
+
+            val backgroundWork =
+                PeriodicWorkRequestBuilder<LoadingWorker>(refreshMinutes, TimeUnit.MINUTES)
+                    .setConstraints(myConstraints)
+                    .addTag("selfoss-loading")
+                    .build()
+
+
+            WorkManager.getInstance().enqueueUniquePeriodicWork("selfoss-loading", ExistingPeriodicWorkPolicy.REPLACE, backgroundWork)
+        }
+    }
 }
 

app/src/main/java/apps/amine/bou/readerforselfoss/LoginActivity.kt

@@ -21,6 +21,7 @@ import apps.amine.bou.readerforselfoss.themes.AppColors
 import apps.amine.bou.readerforselfoss.utils.Config
 import apps.amine.bou.readerforselfoss.utils.isBaseUrlValid
 import apps.amine.bou.readerforselfoss.utils.maybeHandleSilentException
+import apps.amine.bou.readerforselfoss.utils.network.isNetworkAccessible
 import com.mikepenz.aboutlibraries.Libs
 import com.mikepenz.aboutlibraries.LibsBuilder
 import kotlinx.android.synthetic.main.activity_login.*
@@ -196,6 +197,8 @@ class LoginActivity : AppCompatActivity() {
                 isWithSelfSignedCert,
                 isWithSelfSignedCert
             )
+
+            if (this@LoginActivity.isNetworkAccessible(this@LoginActivity.findViewById(R.id.loginForm))) {
                 api.login().enqueue(object : Callback<SuccessResponse> {
                     private fun preferenceError(t: Throwable) {
                         editor.remove("url")
@@ -235,6 +238,9 @@ class LoginActivity : AppCompatActivity() {
                         preferenceError(t)
                     }
                 })
+            } else {
+                showProgress(false)
+            }
         }
     }
 

app/src/main/java/apps/amine/bou/readerforselfoss/MyApp.kt

@@ -1,8 +1,11 @@
 package apps.amine.bou.readerforselfoss
 
+import android.app.NotificationChannel
+import android.app.NotificationManager
 import android.content.Context
 import android.graphics.drawable.Drawable
 import android.net.Uri
+import android.os.Build
 import android.preference.PreferenceManager
 import androidx.multidex.MultiDexApplication
 import android.widget.ImageView
@@ -59,6 +62,18 @@ class MyApp : MultiDexApplication() {
         initTheme()
 
         tryToHandleBug()
+
+        handleNotificationChannels()
+    }
+
+    private fun handleNotificationChannels() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            val name = getString(R.string.notification_channel_sync)
+            val importance = NotificationManager.IMPORTANCE_LOW
+            val mChannel = NotificationChannel(Config.syncChannelId, name, importance)
+            val notificationManager = getSystemService(NOTIFICATION_SERVICE) as NotificationManager
+            notificationManager.createNotificationChannel(mChannel)
+        }
     }
 
     override fun attachBaseContext(base: Context?) {

app/src/main/java/apps/amine/bou/readerforselfoss/ReaderActivity.kt

@@ -24,6 +24,7 @@ import apps.amine.bou.readerforselfoss.themes.AppColors
 import apps.amine.bou.readerforselfoss.themes.Toppings
 import apps.amine.bou.readerforselfoss.transformers.DepthPageTransformer
 import apps.amine.bou.readerforselfoss.utils.maybeHandleSilentException
+import apps.amine.bou.readerforselfoss.utils.network.isNetworkAccessible
 import apps.amine.bou.readerforselfoss.utils.persistence.toEntity
 import apps.amine.bou.readerforselfoss.utils.succeeded
 import apps.amine.bou.readerforselfoss.utils.toggleStar
@@ -103,7 +104,8 @@ class ReaderActivity : AppCompatActivity() {
 
         readItem(allItems[currentItem])
 
-        pager.adapter = ScreenSlidePagerAdapter(supportFragmentManager, AppColors(this@ReaderActivity))
+        pager.adapter =
+                ScreenSlidePagerAdapter(supportFragmentManager, AppColors(this@ReaderActivity))
         pager.currentItem = currentItem
     }
 
@@ -132,7 +134,7 @@ class ReaderActivity : AppCompatActivity() {
     }
 
     fun readItem(item: Item) {
-        if (markOnScroll) {
+        if (this@ReaderActivity.isNetworkAccessible(this@ReaderActivity.findViewById(R.id.reader_activity_view)) && markOnScroll) {
             thread {
                 db.itemsDao().delete(item.toEntity())
             }
@@ -164,7 +166,8 @@ class ReaderActivity : AppCompatActivity() {
                             db.itemsDao().insertAllItems(item.toEntity())
                         }
                         if (debugReadingItems) {
-                            ACRA.getErrorReporter().maybeHandleSilentException(t, this@ReaderActivity)
+                            ACRA.getErrorReporter()
+                                .maybeHandleSilentException(t, this@ReaderActivity)
                         }
                     }
                 }
@@ -191,7 +194,6 @@ class ReaderActivity : AppCompatActivity() {
     private inner class ScreenSlidePagerAdapter(fm: FragmentManager, val appColors: AppColors) :
         FragmentStatePagerAdapter(fm) {
 
-
         override fun getCount(): Int {
             return allItems.size
         }
@@ -203,7 +205,12 @@ class ReaderActivity : AppCompatActivity() {
         override fun startUpdate(container: ViewGroup) {
             super.startUpdate(container)
 
-            container.background = ColorDrawable(ContextCompat.getColor(this@ReaderActivity, appColors.colorBackground))
+            container.background = ColorDrawable(
+                ContextCompat.getColor(
+                    this@ReaderActivity,
+                    appColors.colorBackground
+                )
+            )
         }
     }
 
@@ -228,6 +235,7 @@ class ReaderActivity : AppCompatActivity() {
                 return true
             }
             R.id.save -> {
+                if (this@ReaderActivity.isNetworkAccessible(null)) {
                     api.starrItem(allItems[pager.currentItem].id)
                         .enqueue(object : Callback<SuccessResponse> {
                             override fun onResponse(
@@ -251,7 +259,9 @@ class ReaderActivity : AppCompatActivity() {
                             }
                         })
                 }
+            }
             R.id.unsave -> {
+                if (this@ReaderActivity.isNetworkAccessible(null)) {
                     api.unstarrItem(allItems[pager.currentItem].id)
                         .enqueue(object : Callback<SuccessResponse> {
                             override fun onResponse(
@@ -276,6 +286,7 @@ class ReaderActivity : AppCompatActivity() {
                         })
                 }
             }
+        }
         return super.onOptionsItemSelected(item)
     }
 

app/src/main/java/apps/amine/bou/readerforselfoss/SourcesActivity.kt

@@ -13,6 +13,7 @@ import apps.amine.bou.readerforselfoss.api.selfoss.SelfossApi
 import apps.amine.bou.readerforselfoss.api.selfoss.Source
 import apps.amine.bou.readerforselfoss.themes.AppColors
 import apps.amine.bou.readerforselfoss.themes.Toppings
+import apps.amine.bou.readerforselfoss.utils.network.isNetworkAccessible
 import com.ftinc.scoop.Scoop
 import kotlinx.android.synthetic.main.activity_sources.*
 import retrofit2.Call
@@ -66,6 +67,7 @@ class SourcesActivity : AppCompatActivity() {
         recyclerView.setHasFixedSize(true)
         recyclerView.layoutManager = mLayoutManager
 
+        if (this@SourcesActivity.isNetworkAccessible(this@SourcesActivity.findViewById(R.id.recyclerView))) {
             api.sources.enqueue(object : Callback<List<Source>> {
                 override fun onResponse(
                     call: Call<List<Source>>,
@@ -94,6 +96,7 @@ class SourcesActivity : AppCompatActivity() {
                     ).show()
                 }
             })
+        }
 
         fab.setOnClickListener {
             startActivity(Intent(this@SourcesActivity, AddSourceActivity::class.java))

app/src/main/java/apps/amine/bou/readerforselfoss/adapters/ItemCardAdapter.kt

@@ -21,6 +21,7 @@ import apps.amine.bou.readerforselfoss.utils.buildCustomTabsIntent
 import apps.amine.bou.readerforselfoss.utils.customtabs.CustomTabActivityHelper
 import apps.amine.bou.readerforselfoss.utils.glide.bitmapCenterCrop
 import apps.amine.bou.readerforselfoss.utils.glide.circularBitmapDrawable
+import apps.amine.bou.readerforselfoss.utils.network.isNetworkAccessible
 import apps.amine.bou.readerforselfoss.utils.openInBrowserAsNewTask
 import apps.amine.bou.readerforselfoss.utils.openItemUrl
 import apps.amine.bou.readerforselfoss.utils.shareLink
@@ -117,6 +118,7 @@ class ItemCardAdapter(
 
             mView.favButton.setOnLikeListener(object : OnLikeListener {
                 override fun liked(likeButton: LikeButton) {
+                    if (c.isNetworkAccessible(null)) {
                         val (id) = items[adapterPosition]
                         api.starrItem(id).enqueue(object : Callback<SuccessResponse> {
                             override fun onResponse(
@@ -138,8 +140,10 @@ class ItemCardAdapter(
                             }
                         })
                     }
+                }
 
                 override fun unLiked(likeButton: LikeButton) {
+                    if (c.isNetworkAccessible(null)) {
                         val (id) = items[adapterPosition]
                         api.unstarrItem(id).enqueue(object : Callback<SuccessResponse> {
                             override fun onResponse(
@@ -161,6 +165,7 @@ class ItemCardAdapter(
                             }
                         })
                     }
+                }
             })
 
             mView.shareBtn.setOnClickListener {

app/src/main/java/apps/amine/bou/readerforselfoss/adapters/ItemsAdapter.kt

@@ -13,6 +13,7 @@ import apps.amine.bou.readerforselfoss.api.selfoss.SuccessResponse
 import apps.amine.bou.readerforselfoss.persistence.database.AppDatabase
 import apps.amine.bou.readerforselfoss.themes.AppColors
 import apps.amine.bou.readerforselfoss.utils.maybeHandleSilentException
+import apps.amine.bou.readerforselfoss.utils.network.isNetworkAccessible
 import apps.amine.bou.readerforselfoss.utils.persistence.toEntity
 import apps.amine.bou.readerforselfoss.utils.succeeded
 import org.acra.ACRA
@@ -45,6 +46,7 @@ abstract class ItemsAdapter<VH : RecyclerView.ViewHolder?> : RecyclerView.Adapte
                 Snackbar.LENGTH_LONG
             )
             .setAction(R.string.undo_string) {
+                if (app.isNetworkAccessible(null)) {
                     items.add(position, i)
                     thread {
                         db.itemsDao().insertAllItems(i.toEntity())
@@ -70,6 +72,7 @@ abstract class ItemsAdapter<VH : RecyclerView.ViewHolder?> : RecyclerView.Adapte
                         }
                     })
                 }
+            }
 
         val view = s.view
         val tv: TextView = view.findViewById(com.google.android.material.R.id.snackbar_text)
@@ -78,7 +81,7 @@ abstract class ItemsAdapter<VH : RecyclerView.ViewHolder?> : RecyclerView.Adapte
     }
 
     fun removeItemAtIndex(position: Int) {
-
+        if (app.isNetworkAccessible(null)) {
             val i = items[position]
 
             items.remove(i)
@@ -133,6 +136,7 @@ abstract class ItemsAdapter<VH : RecyclerView.ViewHolder?> : RecyclerView.Adapte
                 }
             })
         }
+    }
 
     fun addItemAtIndex(item: Item, position: Int) {
         items.add(position, item)

app/src/main/java/apps/amine/bou/readerforselfoss/adapters/SourcesListAdapter.kt

@@ -13,6 +13,7 @@ import apps.amine.bou.readerforselfoss.api.selfoss.SelfossApi
 import apps.amine.bou.readerforselfoss.api.selfoss.Source
 import apps.amine.bou.readerforselfoss.api.selfoss.SuccessResponse
 import apps.amine.bou.readerforselfoss.utils.glide.circularBitmapDrawable
+import apps.amine.bou.readerforselfoss.utils.network.isNetworkAccessible
 import apps.amine.bou.readerforselfoss.utils.toTextDrawableString
 import com.amulyakhare.textdrawable.TextDrawable
 import com.amulyakhare.textdrawable.util.ColorGenerator
@@ -70,6 +71,7 @@ class SourcesListAdapter(
             val deleteBtn: Button = mView.findViewById(R.id.deleteBtn)
 
             deleteBtn.setOnClickListener {
+                if (c.isNetworkAccessible(null)) {
                     val (id) = items[adapterPosition]
                     api.deleteSource(id).enqueue(object : Callback<SuccessResponse> {
                         override fun onResponse(
@@ -100,4 +102,5 @@ class SourcesListAdapter(
                 }
             }
         }
+    }
 }

app/src/main/java/apps/amine/bou/readerforselfoss/api/selfoss/SelfossApi.kt

@@ -21,7 +21,7 @@ import java.util.concurrent.ConcurrentHashMap
 
 class SelfossApi(
     c: Context,
-    callingActivity: Activity,
+    callingActivity: Activity?,
     isWithSelfSignedCert: Boolean,
     shouldLog: Boolean
 ) {
@@ -91,9 +91,11 @@ class SelfossApi(
                     .build()
             service = retrofit.create(SelfossService::class.java)
         } catch (e: IllegalArgumentException) {
+            if (callingActivity != null) {
                 Config.logoutAndRedirect(c, callingActivity, config.settings.edit(), baseUrlFail = true)
             }
         }
+    }
 
     fun login(): Call<SuccessResponse> =
         service.loginToSelfoss(config.userLogin, config.userPassword)

app/src/main/java/apps/amine/bou/readerforselfoss/background/background.kt

@@ -0,0 +1,83 @@
+package apps.amine.bou.readerforselfoss.background
+
+import android.app.NotificationManager
+import android.content.Context
+import android.os.Handler
+import android.preference.PreferenceManager
+import androidx.core.app.NotificationCompat
+import androidx.core.app.NotificationCompat.PRIORITY_LOW
+import androidx.room.Room
+import androidx.work.Worker
+import androidx.work.WorkerParameters
+import apps.amine.bou.readerforselfoss.R
+import apps.amine.bou.readerforselfoss.api.selfoss.Item
+import apps.amine.bou.readerforselfoss.api.selfoss.SelfossApi
+import apps.amine.bou.readerforselfoss.persistence.database.AppDatabase
+import apps.amine.bou.readerforselfoss.persistence.migrations.MIGRATION_1_2
+import apps.amine.bou.readerforselfoss.utils.Config
+import apps.amine.bou.readerforselfoss.utils.persistence.toEntity
+import retrofit2.Call
+import retrofit2.Callback
+import retrofit2.Response
+import java.util.*
+import kotlin.concurrent.schedule
+import kotlin.concurrent.thread
+
+class LoadingWorker(val context: Context, params: WorkerParameters) : Worker(context, params) {
+
+    override fun doWork(): Result {
+        val notificationManager =
+            applicationContext.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+
+        val notification = NotificationCompat.Builder(applicationContext, Config.syncChannelId)
+            .setContentTitle(context.getString(R.string.loading_notification_title))
+            .setContentText(context.getString(R.string.loading_notification_text))
+            .setOngoing(true)
+            .setPriority(PRIORITY_LOW)
+            .setChannelId(Config.syncChannelId)
+            .setSmallIcon(R.drawable.ic_cloud_download)
+
+        notificationManager.notify(1, notification.build())
+
+        val settings = this.context.getSharedPreferences(Config.settingsName, Context.MODE_PRIVATE)
+        val sharedPref = PreferenceManager.getDefaultSharedPreferences(this.context)
+        val shouldLogEverything = sharedPref.getBoolean("should_log_everything", false)
+
+        val db = Room.databaseBuilder(
+            applicationContext,
+            AppDatabase::class.java, "selfoss-database"
+        ).addMigrations(MIGRATION_1_2).build()
+
+        val api = SelfossApi(
+            this.context,
+            null,
+            settings.getBoolean("isSelfSignedCert", false),
+            shouldLogEverything
+        )
+        api.allItems().enqueue(object : Callback<List<Item>> {
+            override fun onFailure(call: Call<List<Item>>, t: Throwable) {
+                Timer("", false).schedule(4000) {
+                    notificationManager.cancel(1)
+                }
+            }
+
+            override fun onResponse(
+                call: Call<List<Item>>,
+                response: Response<List<Item>>
+            ) {
+                thread {
+                    if (response.body() != null) {
+                        val apiItems = (response.body() as ArrayList<Item>)
+                        db.itemsDao().deleteAllItems()
+                        db.itemsDao()
+                            .insertAllItems(*(apiItems.map { it.toEntity() }).toTypedArray())
+                    }
+                    Timer("", false).schedule(4000) {
+                        notificationManager.cancel(1)
+                    }
+                }
+            }
+        })
+        return Result.SUCCESS
+    }
+}

app/src/main/java/apps/amine/bou/readerforselfoss/fragments/ArticleFragment.kt

@@ -29,6 +29,7 @@ import apps.amine.bou.readerforselfoss.utils.buildCustomTabsIntent
 import apps.amine.bou.readerforselfoss.utils.customtabs.CustomTabActivityHelper
 import apps.amine.bou.readerforselfoss.utils.isEmptyOrNullOrNullString
 import apps.amine.bou.readerforselfoss.utils.maybeHandleSilentException
+import apps.amine.bou.readerforselfoss.utils.network.isNetworkAccessible
 import apps.amine.bou.readerforselfoss.utils.openItemUrl
 import apps.amine.bou.readerforselfoss.utils.shareLink
 import apps.amine.bou.readerforselfoss.utils.sourceAndDateText
@@ -135,7 +136,8 @@ class ArticleFragment : Fragment() {
                             false,
                             activity!!
                         )
-                        R.id.unread_action -> api.unmarkItem(allItems[pageNumber.toInt()].id).enqueue(
+                        R.id.unread_action -> if ((context != null && context!!.isNetworkAccessible(null)) || context == null) {
+                            api.unmarkItem(allItems[pageNumber.toInt()].id).enqueue(
                                 object : Callback<SuccessResponse> {
                                     override fun onResponse(
                                         call: Call<SuccessResponse>,
@@ -164,6 +166,7 @@ class ArticleFragment : Fragment() {
                                     }
                                 }
                             )
+                        }
                         else -> Unit
                     }
                 }
@@ -212,6 +215,7 @@ class ArticleFragment : Fragment() {
         customTabsIntent: CustomTabsIntent,
         prefs: SharedPreferences
     ) {
+        if ((context != null && context!!.isNetworkAccessible(null)) || context == null) {
             rootView.progressBar.visibility = View.VISIBLE
             val parser = MercuryApi(
                 prefs.getBoolean("should_log_everything", false)
@@ -303,6 +307,7 @@ class ArticleFragment : Fragment() {
                 }
             )
         }
+    }
 
     private fun htmlToWebview(c: String, prefs: SharedPreferences) {
         val stringColor = String.format("#%06X", 0xFFFFFF and appColors.colorAccent)

app/src/main/java/apps/amine/bou/readerforselfoss/utils/Config.kt

@@ -36,6 +36,8 @@ class Config(c: Context) {
 
         const val trackerUrl = "https://github.com/aminecmi/ReaderforSelfoss/issues"
 
+        const val syncChannelId = "sync-channel-id"
+
         fun logoutAndRedirect(
             c: Context,
             callingActivity: Activity,

app/src/main/java/apps/amine/bou/readerforselfoss/utils/network/NetworkUtils.kt

@@ -0,0 +1,41 @@
+package apps.amine.bou.readerforselfoss.utils.network
+
+import android.content.Context
+import android.graphics.Color
+import android.net.ConnectivityManager
+import android.net.NetworkInfo
+import android.view.View
+import android.widget.TextView
+import apps.amine.bou.readerforselfoss.R
+import com.google.android.material.snackbar.Snackbar
+
+var snackBarShown = false
+var view: View? = null
+
+fun Context.isNetworkAccessible(v: View?): Boolean {
+    val cm = this.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
+    val activeNetwork: NetworkInfo? = cm.activeNetworkInfo
+    val networkIsAccessible = activeNetwork != null && activeNetwork.isConnectedOrConnecting
+
+    if (v != null && !networkIsAccessible && (!snackBarShown || v != view)) {
+        view = v
+        val s = Snackbar
+            .make(
+                v,
+                R.string.no_network_connectivity,
+                Snackbar.LENGTH_INDEFINITE
+            )
+
+        s.setAction(android.R.string.ok) {
+            snackBarShown = false
+            s.dismiss()
+        }
+
+        val view = s.view
+        val tv: TextView = view.findViewById(com.google.android.material.R.id.snackbar_text)
+        tv.setTextColor(Color.WHITE)
+        s.show()
+        snackBarShown = true
+    }
+    return networkIsAccessible
+}

app/src/main/res/layout/activity_reader.xml

@@ -2,6 +2,7 @@
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
+    android:id="@+id/reader_activity_view"
     android:layout_height="match_parent">
 
     <com.google.android.material.appbar.AppBarLayout

app/src/main/res/values-af-rZA/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-ar-rSA/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-ca-rES/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-cs-rCZ/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-da-rDK/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-de-rDE/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-el-rGR/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-es-rES/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Los artículos no se guardarán en la memoria del dispositivo y la aplicación no se podrá utilizar sin conexión.</string>
     <string name="pref_switch_items_caching_on">Los artículos se guardarán en la memoria del dispositivo y se utilizarán para el uso sin conexión.</string>
     <string name="pref_switch_items_caching">Guardar elementos para uso sin conexión</string>
+    <string name="no_network_connectivity">Sin conexión!</string>
 </resources>

app/src/main/res/values-fi-rFI/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-fr-rFR/strings.xml

@@ -150,6 +150,7 @@
     <string name="unmark">Marquer l\'article comme non lu</string>
     <string name="pref_header_offline">Hors ligne et cache</string>
     <string name="pref_switch_items_caching_off">Les articles ne seront pas enregistrés et l\'application ne sera pas utilisable hors ligne.</string>
-  <string name="pref_switch_items_caching_on">Les articles seront enregistrés et l\'application ne sera utilisable hors ligne.</string>
+    <string name="pref_switch_items_caching_on">Les articles seront enregistrés et l\'application sera utilisable hors ligne.</string>
     <string name="pref_switch_items_caching">Sauvegarder les articles pour une utilisation hors ligne</string>
+    <string name="no_network_connectivity">Hors connexion !</string>
 </resources>

app/src/main/res/values-gl-rES/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Os artigos non se gardaran na memoria do dispositivo e non se poderá utilizar a aplicación sen conexión.</string>
     <string name="pref_switch_items_caching_on">Os artigos gardaranse na memoria do dispositivo e estarán dispoñibles sen conexión.</string>
     <string name="pref_switch_items_caching">Gardar elementos para uso sen conexión</string>
+    <string name="no_network_connectivity">Non conectado!</string>
 </resources>

app/src/main/res/values-hu-rHU/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-in-rID/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-it-rIT/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-iw-rIL/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-ja-rJP/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-ko-rKR/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-nl-rNL/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-no-rNO/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-pl-rPL/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-pt-rBR/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-pt-rPT/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-ro-rRO/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-ru-rRU/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-sr-rSP/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-sv-rSE/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-tr-rTR/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-uk-rUA/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-vi-rVN/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-zh-rCN/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values-zh-rTW/strings.xml

@@ -152,4 +152,5 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -152,4 +152,13 @@
     <string name="pref_switch_items_caching_off">Articles won\'t be saved to the device memory, and the app won\'t be usable offline.</string>
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
+    <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>

app/src/main/res/xml/pref_offline.xml

@@ -5,4 +5,28 @@
         android:summaryOff="@string/pref_switch_items_caching_off"
         android:summaryOn="@string/pref_switch_items_caching_on"
         android:title="@string/pref_switch_items_caching" />
+
+    <SwitchPreference
+        android:defaultValue="false"
+        android:key="periodic_refresh"
+        android:dependency="items_caching"
+        android:summaryOff="@string/pref_switch_periodic_refresh_off"
+        android:summaryOn="@string/pref_switch_periodic_refresh_on"
+        android:title="@string/pref_switch_periodic_refresh" />
+
+    <EditTextPreference
+        android:dependency="periodic_refresh"
+        android:defaultValue="360"
+        android:inputType="number"
+        android:key="periodic_refresh_minutes"
+        android:selectAllOnFocus="true"
+        android:singleLine="true"
+        android:title="@string/pref_periodic_refresh_minutes_title" />
+
+
+    <SwitchPreference
+        android:defaultValue="false"
+        android:key="refresh_when_charging"
+        android:dependency="items_caching"
+        android:title="@string/pref_switch_refresh_when_charging" />
 </PreferenceScreen>

build.gradle

@@ -6,6 +6,7 @@ buildscript {
         android_version = '1.0.0'
         lifecycle_version = '2.0.0'
         room_version = '2.1.0-alpha01'
+        work_version = "1.0.0-alpha10"
     }
     repositories {
         google()

settings.gradle

@@ -1,14 +1 @@
 include ':app'
-
-ext.isCiServer = !!System.getProperty("CI")
-
-buildCache {
-    local {
-        enabled = !isCiServer
-    }
-    remote(HttpBuildCache) {
-        // DO NOT COMMIT !!!!!
-        url = 'http://amine-bou.fr:8885/cache/'
-        push = isCiServer
-    }
-}