implement the Show Media Count toggle functionality

app/src/main/kotlin/com/simplemobiletools/gallery/activities/MainActivity.kt

@@ -56,6 +56,7 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
     private var mStoredAnimateGifs = true
     private var mStoredCropThumbnails = true
     private var mStoredScrollHorizontally = true
+    private var mStoredShowMediaCount = true
     private var mStoredTextColor = 0
     private var mLoadedInitialPhotos = false
     private var mLatestMediaId = 0L
@@ -80,10 +81,7 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
         removeTempFolder()
         directories_refresh_layout.setOnRefreshListener({ getDirectories() })
         mDirs = ArrayList()
-        mStoredAnimateGifs = config.animateGifs
+        storeStateVariables()
-        mStoredCropThumbnails = config.cropThumbnails
-        mStoredScrollHorizontally = config.scrollHorizontally
-        mStoredTextColor = config.textColor
         checkWhatsNewDialog()
 
         directories_empty_text.setOnClickListener {
@@ -134,6 +132,13 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
             directories_grid.adapter?.notifyDataSetChanged()
         }
 
+        if (mStoredShowMediaCount != config.showMediaCount) {
+            (directories_grid.adapter as? DirectoryAdapter)?.apply {
+                showMediaCount = config.showMediaCount
+                notifyDataSetChanged()
+            }
+        }
+
         if (mStoredScrollHorizontally != config.scrollHorizontally) {
             (directories_grid.adapter as? DirectoryAdapter)?.apply {
                 scrollVertically = config.viewTypeFolders == VIEW_TYPE_LIST || !config.scrollHorizontally
@@ -157,10 +162,7 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
         storeDirectories()
         directories_refresh_layout.isRefreshing = false
         mIsGettingDirs = false
-        mStoredAnimateGifs = config.animateGifs
+        storeStateVariables()
-        mStoredCropThumbnails = config.cropThumbnails
-        mStoredScrollHorizontally = config.scrollHorizontally
-        mStoredTextColor = config.textColor
         directories_grid.listener = null
         mLastMediaHandler.removeCallbacksAndMessages(null)
 
@@ -175,6 +177,16 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
         removeTempFolder()
     }
 
+    private fun storeStateVariables() {
+        config.apply {
+            mStoredAnimateGifs = animateGifs
+            mStoredCropThumbnails = cropThumbnails
+            mStoredScrollHorizontally = scrollHorizontally
+            mStoredShowMediaCount = showMediaCount
+            mStoredTextColor = textColor
+        }
+    }
+
     private fun removeTempFolder() {
         val newFolder = File(config.tempFolderPath)
         if (newFolder.exists() && newFolder.isDirectory) {
@@ -188,10 +200,11 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
     private fun tryloadGallery() {
         handlePermission(PERMISSION_WRITE_STORAGE) {
             if (it) {
-                if (config.showAll)
+                if (config.showAll) {
                     showAllMedia()
-                else
+                } else {
                     getDirectories()
+                }
 
                 setupLayoutManager()
                 checkIfColorChanged()
@@ -305,10 +318,11 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
     private fun getRecyclerAdapter() = (directories_grid.adapter as DirectoryAdapter)
 
     private fun setupLayoutManager() {
-        if (config.viewTypeFolders == VIEW_TYPE_GRID)
+        if (config.viewTypeFolders == VIEW_TYPE_GRID) {
             setupGridLayoutManager()
-        else
+        } else {
             setupListLayoutManager()
+        }
     }
 
     private fun setupGridLayoutManager() {

app/src/main/kotlin/com/simplemobiletools/gallery/activities/SettingsActivity.kt

@@ -49,6 +49,7 @@ class SettingsActivity : SimpleActivity() {
         setupPasswordProtection()
         setupDeleteEmptyFolders()
         setupAllowVideoGestures()
+        setupShowMediaCount()
         setupShowExtendedDetails()
         setupManageExtendedDetails()
         updateTextColors(settings_holder)
@@ -198,6 +199,14 @@ class SettingsActivity : SimpleActivity() {
         }
     }
 
+    private fun setupShowMediaCount() {
+        settings_show_media_count.isChecked = config.showMediaCount
+        settings_show_media_count_holder.setOnClickListener {
+            settings_show_media_count.toggle()
+            config.showMediaCount = settings_show_media_count.isChecked
+        }
+    }
+
     private fun setupScreenRotation() {
         settings_screen_rotation.text = getScreenRotationText()
         settings_screen_rotation_holder.setOnClickListener {

app/src/main/kotlin/com/simplemobiletools/gallery/adapters/DirectoryAdapter.kt

@@ -30,17 +30,18 @@ import java.util.*
 class DirectoryAdapter(val activity: SimpleActivity, var dirs: MutableList<Directory>, val listener: DirOperationsListener?, val isPickIntent: Boolean,
                        val itemClick: (Directory) -> Unit) : RecyclerView.Adapter<DirectoryAdapter.ViewHolder>() {
 
-    val multiSelector = MultiSelector()
     val config = activity.config
-    val isListViewType = config.viewTypeFolders == VIEW_TYPE_LIST
-
     var actMode: ActionMode? = null
-    var itemViews = SparseArray<View>()
-    val selectedPositions = HashSet<Int>()
     var primaryColor = config.primaryColor
-    var textColor = config.textColor
-    var pinnedFolders = config.pinnedFolders
     var scrollVertically = !config.scrollHorizontally
+    var showMediaCount = config.showMediaCount
+
+    private val multiSelector = MultiSelector()
+    private val isListViewType = config.viewTypeFolders == VIEW_TYPE_LIST
+    private var itemViews = SparseArray<View>()
+    private val selectedPositions = HashSet<Int>()
+    private var textColor = config.textColor
+    private var pinnedFolders = config.pinnedFolders
 
     fun toggleItemSelection(select: Boolean, pos: Int) {
         if (select) {
@@ -350,7 +351,7 @@ class DirectoryAdapter(val activity: SimpleActivity, var dirs: MutableList<Direc
 
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
         val dir = dirs[position]
-        itemViews.put(position, holder.bindView(dir, pinnedFolders.contains(dir.path), scrollVertically, isListViewType, textColor))
+        itemViews.put(position, holder.bindView(dir, pinnedFolders.contains(dir.path), scrollVertically, isListViewType, textColor, showMediaCount))
         toggleItemSelection(selectedPositions.contains(position), position)
         holder.itemView.tag = holder
     }
@@ -415,7 +416,7 @@ class DirectoryAdapter(val activity: SimpleActivity, var dirs: MutableList<Direc
     class ViewHolder(val view: View, val adapterListener: MyAdapterListener, val activity: SimpleActivity, val multiSelectorCallback: ModalMultiSelectorCallback,
                      val multiSelector: MultiSelector, val listener: DirOperationsListener?, val isPickIntent: Boolean, val itemClick: (Directory) -> (Unit)) :
             SwappingHolder(view, MultiSelector()) {
-        fun bindView(directory: Directory, isPinned: Boolean, scrollVertically: Boolean, isListView: Boolean, textColor: Int): View {
+        fun bindView(directory: Directory, isPinned: Boolean, scrollVertically: Boolean, isListView: Boolean, textColor: Int, showMediaCount: Boolean): View {
             itemView.apply {
                 dir_name.text = directory.name
                 dir_path?.text = "${directory.path.substringBeforeLast("/")}/"
@@ -423,6 +424,7 @@ class DirectoryAdapter(val activity: SimpleActivity, var dirs: MutableList<Direc
                 activity.loadImage(directory.tmb, dir_thumbnail, scrollVertically)
                 dir_pin.beVisibleIf(isPinned)
                 dir_sd_card.beVisibleIf(activity.isPathOnSD(directory.path))
+                photo_cnt.beVisibleIf(showMediaCount)
 
                 if (isListView) {
                     dir_name.setTextColor(textColor)

app/src/main/kotlin/com/simplemobiletools/gallery/helpers/Config.kt

@@ -245,6 +245,10 @@ class Config(context: Context) : BaseConfig(context) {
         get() = prefs.getBoolean(ALLOW_VIDEO_GESTURES, true)
         set(allowVideoGestures) = prefs.edit().putBoolean(ALLOW_VIDEO_GESTURES, allowVideoGestures).apply()
 
+    var showMediaCount: Boolean
+        get() = prefs.getBoolean(SHOW_MEDIA_COUNT, true)
+        set(showMediaCount) = prefs.edit().putBoolean(SHOW_MEDIA_COUNT, showMediaCount).apply()
+
     var slideshowInterval: Int
         get() = prefs.getInt(SLIDESHOW_INTERVAL, SLIDESHOW_DEFAULT_INTERVAL)
         set(slideshowInterval) = prefs.edit().putInt(SLIDESHOW_INTERVAL, slideshowInterval).apply()

app/src/main/kotlin/com/simplemobiletools/gallery/helpers/Constants.kt

@@ -36,6 +36,7 @@ val HIDE_SYSTEM_UI = "hide_system_ui"
 val REPLACE_SHARE_WITH_ROTATE = "replace_share_with_rotate"
 val DELETE_EMPTY_FOLDERS = "delete_empty_folders"
 val ALLOW_VIDEO_GESTURES = "allow_video_gestures"
+val SHOW_MEDIA_COUNT = "show_media_count"
 val TEMP_FOLDER_PATH = "temp_folder_path"
 val VIEW_TYPE_FOLDERS = "view_type_folders"
 val VIEW_TYPE_FILES = "view_type_files"

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

@@ -328,6 +328,26 @@
 
         </RelativeLayout>
 
+        <RelativeLayout
+            android:id="@+id/settings_show_media_count_holder"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="@dimen/medium_margin"
+            android:background="?attr/selectableItemBackground"
+            android:padding="@dimen/activity_margin">
+
+            <com.simplemobiletools.commons.views.MySwitchCompat
+                android:id="@+id/settings_show_media_count"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:background="@null"
+                android:clickable="false"
+                android:paddingLeft="@dimen/medium_margin"
+                android:paddingStart="@dimen/medium_margin"
+                android:text="@string/show_media_count"/>
+
+        </RelativeLayout>
+
         <RelativeLayout
             android:id="@+id/settings_show_extended_details_holder"
             android:layout_width="match_parent"