update MyScalableRecyclerView to the new MyRecyclerView

app/build.gradle

@@ -47,10 +47,9 @@ ext {
 }
 
 dependencies {
-    compile 'com.simplemobiletools:commons:2.38.9'
+    compile 'com.simplemobiletools:commons:2.39.7'
     compile 'com.davemorrissey.labs:subsampling-scale-image-view:3.7.2'
     compile 'com.theartofdev.edmodo:android-image-cropper:2.4.0'
-    compile 'com.bignerdranch.android:recyclerview-multiselect:0.2'
     compile 'com.android.support:multidex:1.0.2'
     compile 'com.google.code.gson:gson:2.8.2'
     compile 'it.sephiroth.android.exif:library:1.0.1'

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

@@ -4,7 +4,6 @@ import android.app.Activity
 import android.content.ClipData
 import android.content.Intent
 import android.net.Uri
-import android.os.Build
 import android.os.Bundle
 import android.os.Handler
 import android.provider.MediaStore
@@ -23,7 +22,7 @@ import com.simplemobiletools.commons.helpers.SORT_BY_DATE_MODIFIED
 import com.simplemobiletools.commons.helpers.SORT_BY_DATE_TAKEN
 import com.simplemobiletools.commons.models.RadioItem
 import com.simplemobiletools.commons.models.Release
-import com.simplemobiletools.commons.views.MyScalableRecyclerView
+import com.simplemobiletools.commons.views.MyRecyclerView
 import com.simplemobiletools.gallery.BuildConfig
 import com.simplemobiletools.gallery.R
 import com.simplemobiletools.gallery.adapters.DirectoryAdapter
@@ -64,6 +63,7 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
     private var mLatestMediaId = 0L
     private var mLastMediaHandler = Handler()
     private var mCurrAsyncTask: GetDirectoriesAsynctask? = null
+    private var mZoomListener: MyRecyclerView.MyZoomListener? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -178,7 +178,6 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
         directories_refresh_layout.isRefreshing = false
         mIsGettingDirs = false
         storeStateVariables()
-        directories_grid.listener = null
         mLastMediaHandler.removeCallbacksAndMessages(null)
 
         if (!mDirs.isEmpty()) {
@@ -341,6 +340,8 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
         } else {
             setupListLayoutManager()
         }
+        getDirectoryAdapter()?.setupZoomListener(mZoomListener)
+        getDirectoryAdapter()?.setupDragListener(true)
     }
 
     private fun setupGridLayoutManager() {
@@ -353,42 +354,30 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
             directories_refresh_layout.layoutParams = FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)
         }
 
-        directories_grid.isDragSelectionEnabled = true
-        directories_grid.isZoomingEnabled = true
         layoutManager.spanCount = config.dirColumnCnt
-        directories_grid.listener = object : MyScalableRecyclerView.MyScalableRecyclerViewListener {
+        mZoomListener = object : MyRecyclerView.MyZoomListener {
             override fun zoomIn() {
                 if (layoutManager.spanCount > 1) {
                     reduceColumnCount()
-                    getRecyclerAdapter().actMode?.finish()
+                    getRecyclerAdapter().finishActMode()
                 }
             }
 
             override fun zoomOut() {
                 if (layoutManager.spanCount < MAX_COLUMN_COUNT) {
                     increaseColumnCount()
-                    getRecyclerAdapter().actMode?.finish()
+                    getRecyclerAdapter().finishActMode()
                 }
             }
-
-            override fun selectItem(position: Int) {
-                getRecyclerAdapter().selectItem(position)
-            }
-
-            override fun selectRange(initialSelection: Int, lastDraggedIndex: Int, minReached: Int, maxReached: Int) {
-                getRecyclerAdapter().selectRange(initialSelection, lastDraggedIndex, minReached, maxReached)
-            }
         }
     }
 
     private fun setupListLayoutManager() {
-        directories_grid.isDragSelectionEnabled = true
-        directories_grid.isZoomingEnabled = false
-
         val layoutManager = directories_grid.layoutManager as GridLayoutManager
         layoutManager.spanCount = 1
         layoutManager.orientation = GridLayoutManager.VERTICAL
         directories_refresh_layout.layoutParams = FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)
+        mZoomListener = null
     }
 
     private fun createNewFolder() {
@@ -560,8 +549,8 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
     private fun setupAdapter() {
         val currAdapter = directories_grid.adapter
         if (currAdapter == null) {
-            directories_grid.adapter = DirectoryAdapter(this, mDirs, this, isPickIntent(intent) || isGetAnyContentIntent(intent)) {
+            directories_grid.adapter = DirectoryAdapter(this, mDirs, this, directories_grid, isPickIntent(intent) || isGetAnyContentIntent(intent)) {
-                itemClicked(it.path)
+                itemClicked((it as Directory).path)
             }
         } else {
             (currAdapter as DirectoryAdapter).updateDirs(mDirs)
@@ -587,7 +576,7 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
     }
 
     private fun checkLastMediaChanged() {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1 && isDestroyed)
+        if (isActivityDestroyed())
             return
 
         mLastMediaHandler.removeCallbacksAndMessages(null)
@@ -610,10 +599,6 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
         getDirectories()
     }
 
-    override fun itemLongClicked(position: Int) {
-        directories_grid.setDragSelectActive(position)
-    }
-
     override fun recheckPinnedFolders() {
         gotDirectories(movePinnedDirectoriesToFront(mDirs), true)
     }

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

@@ -5,7 +5,6 @@ import android.app.WallpaperManager
 import android.content.Intent
 import android.graphics.Bitmap
 import android.net.Uri
-import android.os.Build
 import android.os.Bundle
 import android.os.Handler
 import android.support.v7.widget.GridLayoutManager
@@ -24,7 +23,6 @@ import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.commons.helpers.PERMISSION_WRITE_STORAGE
 import com.simplemobiletools.commons.helpers.REQUEST_EDIT_IMAGE
 import com.simplemobiletools.commons.models.RadioItem
-import com.simplemobiletools.commons.views.MyScalableRecyclerView
 import com.simplemobiletools.gallery.R
 import com.simplemobiletools.gallery.adapters.MediaAdapter
 import com.simplemobiletools.gallery.asynctasks.GetMediaAsynctask
@@ -120,7 +118,6 @@ class MediaActivity : SimpleActivity(), MediaAdapter.MediaOperationsListener {
         mIsGettingMedia = false
         media_refresh_layout.isRefreshing = false
         storeStateVariables()
-        media_grid.listener = null
         mLastMediaHandler.removeCallbacksAndMessages(null)
 
         if (!mMedia.isEmpty()) {
@@ -204,7 +201,7 @@ class MediaActivity : SimpleActivity(), MediaAdapter.MediaOperationsListener {
     }
 
     private fun checkLastMediaChanged() {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1 && isDestroyed)
+        if (isActivityDestroyed())
             return
 
         mLastMediaHandler.removeCallbacksAndMessages(null)
@@ -414,7 +411,7 @@ class MediaActivity : SimpleActivity(), MediaAdapter.MediaOperationsListener {
             media_refresh_layout.layoutParams = FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)
         }
 
-        media_grid.isDragSelectionEnabled = true
+        /*media_grid.isDragSelectionEnabled = true
         media_grid.isZoomingEnabled = true
         layoutManager.spanCount = config.mediaColumnCnt
         media_grid.listener = object : MyScalableRecyclerView.MyScalableRecyclerViewListener {
@@ -439,12 +436,12 @@ class MediaActivity : SimpleActivity(), MediaAdapter.MediaOperationsListener {
             override fun selectRange(initialSelection: Int, lastDraggedIndex: Int, minReached: Int, maxReached: Int) {
                 getRecyclerAdapter().selectRange(initialSelection, lastDraggedIndex, minReached, maxReached)
             }
-        }
+        }*/
     }
 
     private fun setupListLayoutManager() {
-        media_grid.isDragSelectionEnabled = true
+        //media_grid.isDragSelectionEnabled = true
-        media_grid.isZoomingEnabled = false
+        //media_grid.isZoomingEnabled = false
 
         val layoutManager = media_grid.layoutManager as GridLayoutManager
         layoutManager.spanCount = 1

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

@@ -5,10 +5,10 @@ import android.app.WallpaperManager
 import android.content.Intent
 import android.graphics.Bitmap
 import android.net.Uri
-import android.os.Build
 import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
+import com.simplemobiletools.commons.extensions.isActivityDestroyed
 import com.simplemobiletools.commons.extensions.toast
 import com.simplemobiletools.gallery.R
 import com.theartofdev.edmodo.cropper.CropImageView
@@ -86,7 +86,7 @@ class SetWallpaperActivity : SimpleActivity(), CropImageView.OnCropImageComplete
     }
 
     override fun onCropImageComplete(view: CropImageView?, result: CropImageView.CropResult) {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1 && isDestroyed)
+        if (isActivityDestroyed())
             return
 
         if (result.error == null) {

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

@@ -1,36 +1,5 @@
 package com.simplemobiletools.gallery.activities
 
 import com.simplemobiletools.commons.activities.BaseSimpleActivity
-import com.simplemobiletools.commons.extensions.getFilenameFromPath
-import com.simplemobiletools.commons.extensions.toast
-import com.simplemobiletools.gallery.R
-import com.simplemobiletools.gallery.dialogs.PickDirectoryDialog
-import com.simplemobiletools.gallery.extensions.config
-import com.simplemobiletools.gallery.models.Directory
-import java.io.File
-import java.util.*
 
-open class SimpleActivity : BaseSimpleActivity() {
+open class SimpleActivity : BaseSimpleActivity()
-    fun tryCopyMoveFilesTo(files: ArrayList<File>, isCopyOperation: Boolean, callback: () -> Unit) {
-        if (files.isEmpty()) {
-            toast(R.string.unknown_error_occurred)
-            return
-        }
-
-        val source = if (files[0].isFile) files[0].parent else files[0].absolutePath
-        PickDirectoryDialog(this, source) {
-            copyMoveFilesTo(files, source.trimEnd('/'), it, isCopyOperation, true, callback)
-        }
-    }
-
-    fun addTempFolderIfNeeded(dirs: ArrayList<Directory>): ArrayList<Directory> {
-        val directories = ArrayList<Directory>()
-        val tempFolderPath = config.tempFolderPath
-        if (tempFolderPath.isNotEmpty()) {
-            val newFolder = Directory(tempFolderPath, "", tempFolderPath.getFilenameFromPath(), 0, 0, 0, 0L)
-            directories.add(newFolder)
-        }
-        directories.addAll(dirs)
-        return directories
-    }
-}

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

@@ -186,7 +186,7 @@ class ViewPagerActivity : SimpleActivity(), ViewPager.OnPageChangeListener, View
         title = mPath.getFilenameFromPath()
 
         view_pager.onGlobalLayout {
-            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1 || !isDestroyed) {
+            if (!isActivityDestroyed()) {
                 if (mMedia.isNotEmpty()) {
                     gotMedia(mMedia)
                 }
@@ -304,7 +304,7 @@ class ViewPagerActivity : SimpleActivity(), ViewPager.OnPageChangeListener, View
 
     private fun updatePagerItems(media: MutableList<Medium>) {
         val pagerAdapter = MyPagerAdapter(this, supportFragmentManager, media)
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1 || !isDestroyed) {
+        if (!isActivityDestroyed()) {
             view_pager.apply {
                 adapter = pagerAdapter
                 currentItem = mPos
@@ -322,7 +322,7 @@ class ViewPagerActivity : SimpleActivity(), ViewPager.OnPageChangeListener, View
     private fun startSlideshow() {
         if (getMediaForSlideshow()) {
             view_pager.onGlobalLayout {
-                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1 || !isDestroyed) {
+                if (!isActivityDestroyed()) {
                     hideSystemUI()
                     mSlideshowInterval = config.slideshowInterval
                     mSlideshowMoveBackwards = config.slideshowMoveBackwards
@@ -402,7 +402,7 @@ class ViewPagerActivity : SimpleActivity(), ViewPager.OnPageChangeListener, View
         if (mIsSlideshowActive) {
             if (getCurrentMedium()!!.isImage() || getCurrentMedium()!!.isGif()) {
                 mSlideshowHandler.postDelayed({
-                    if (mIsSlideshowActive && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1 && !isDestroyed) {
+                    if (mIsSlideshowActive && !isActivityDestroyed()) {
                         swipeToNextMedium()
                     }
                 }, mSlideshowInterval * 1000L)

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

@@ -1,23 +1,20 @@
 package com.simplemobiletools.gallery.adapters
 
 import android.graphics.PorterDuff
-import android.os.Build
-import android.support.v7.view.ActionMode
-import android.support.v7.widget.RecyclerView
 import android.util.SparseArray
-import android.view.*
+import android.view.Menu
-import com.bignerdranch.android.multiselector.ModalMultiSelectorCallback
+import android.view.View
-import com.bignerdranch.android.multiselector.MultiSelector
+import android.view.ViewGroup
-import com.bignerdranch.android.multiselector.SwappingHolder
 import com.bumptech.glide.Glide
 import com.google.gson.Gson
+import com.simplemobiletools.commons.activities.BaseSimpleActivity
+import com.simplemobiletools.commons.adapters.MyRecyclerViewAdapter
 import com.simplemobiletools.commons.dialogs.ConfirmationDialog
 import com.simplemobiletools.commons.dialogs.PropertiesDialog
 import com.simplemobiletools.commons.dialogs.RenameItemDialog
 import com.simplemobiletools.commons.extensions.*
-import com.simplemobiletools.commons.interfaces.MyAdapterListener
+import com.simplemobiletools.commons.views.MyRecyclerView
 import com.simplemobiletools.gallery.R
-import com.simplemobiletools.gallery.activities.SimpleActivity
 import com.simplemobiletools.gallery.dialogs.ExcludeFolderDialog
 import com.simplemobiletools.gallery.dialogs.PickMediumDialog
 import com.simplemobiletools.gallery.extensions.*
@@ -28,134 +25,104 @@ import kotlinx.android.synthetic.main.directory_item_list.view.*
 import java.io.File
 import java.util.*
 
-class DirectoryAdapter(val activity: SimpleActivity, var dirs: MutableList<Directory>, val listener: DirOperationsListener?, val isPickIntent: Boolean,
+class DirectoryAdapter(activity: BaseSimpleActivity, var dirs: MutableList<Directory>, val listener: DirOperationsListener?, recyclerView: MyRecyclerView,
-                       val itemClick: (Directory) -> Unit) : RecyclerView.Adapter<DirectoryAdapter.ViewHolder>() {
+                       val isPickIntent: Boolean, itemClick: (Any) -> Unit) : MyRecyclerViewAdapter(activity, recyclerView, itemClick) {
 
     private val config = activity.config
-    var actMode: ActionMode? = null
-    var primaryColor = config.primaryColor
-
-    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
     private var scrollHorizontally = config.scrollHorizontally
     private var showMediaCount = config.showMediaCount
     private var animateGifs = config.animateGifs
     private var cropThumbnails = config.cropThumbnails
 
-    fun toggleItemSelection(select: Boolean, pos: Int) {
+    init {
-        if (select) {
+        selectableItemCount = dirs.count()
-            if (itemViews[pos] != null) {
-                itemViews[pos].dir_check?.background?.applyColorFilter(primaryColor)
-                selectedPositions.add(pos)
-            }
-        } else {
-            selectedPositions.remove(pos)
-        }
-
-        itemViews[pos]?.dir_check?.beVisibleIf(select)
-
-        if (selectedPositions.isEmpty()) {
-            actMode?.finish()
-            return
-        }
-
-        updateTitle(selectedPositions.size)
     }
 
-    private fun updateTitle(cnt: Int) {
+    override fun getActionMenuId() = R.menu.cab_directories
-        actMode?.title = "$cnt / ${dirs.size}"
+
-        actMode?.invalidate()
+    override fun prepareItemSelection(view: View) {
+        view.dir_check?.background?.applyColorFilter(primaryColor)
     }
 
-    private val adapterListener = object : MyAdapterListener {
+    override fun markItemSelection(select: Boolean, view: View?) {
-        override fun toggleItemSelectionAdapter(select: Boolean, position: Int) {
+        view?.dir_check?.beVisibleIf(select)
-            toggleItemSelection(select, position)
-        }
-
-        override fun getSelectedPositions(): HashSet<Int> = selectedPositions
     }
 
-    private val multiSelectorMode = object : ModalMultiSelectorCallback(multiSelector) {
+    override fun onCreateViewHolder(parent: ViewGroup?, viewType: Int): ViewHolder {
-        override fun onActionItemClicked(mode: ActionMode, item: MenuItem): Boolean {
+        val layoutType = if (isListViewType) R.layout.directory_item_list else R.layout.directory_item_grid
-            when (item.itemId) {
+        val view = activity.layoutInflater.inflate(layoutType, parent, false)
-                R.id.cab_properties -> showProperties()
+        return createViewHolder(view)
-                R.id.cab_rename -> renameDir()
+    }
-                R.id.cab_pin -> pinFolders(true)
+
-                R.id.cab_unpin -> pinFolders(false)
+    override fun onBindViewHolder(holder: MyRecyclerViewAdapter.ViewHolder, position: Int) {
-                R.id.cab_hide -> toggleFoldersVisibility(true)
+        val dir = dirs[position]
-                R.id.cab_unhide -> toggleFoldersVisibility(false)
+        val view = holder.bindView(dir, isPickIntent) {
-                R.id.cab_exclude -> tryExcludeFolder()
+            setupView(it, dir)
-                R.id.cab_copy_to -> copyMoveTo(true)
+        }
-                R.id.cab_move_to -> copyMoveTo(false)
+        itemViews.put(position, view)
-                R.id.cab_select_all -> selectAll()
+        toggleItemSelection(selectedPositions.contains(position), position)
-                R.id.cab_delete -> askConfirmDelete()
+        holder.itemView.tag = holder
-                R.id.cab_select_photo -> changeAlbumCover(false)
+    }
-                R.id.cab_use_default -> changeAlbumCover(true)
+
-                else -> return false
+    override fun getItemCount() = dirs.size
+
+    override fun actionItemPressed(id: Int) {
+        when (id) {
+            R.id.cab_properties -> showProperties()
+            R.id.cab_rename -> renameDir()
+            R.id.cab_pin -> pinFolders(true)
+            R.id.cab_unpin -> pinFolders(false)
+            R.id.cab_hide -> toggleFoldersVisibility(true)
+            R.id.cab_unhide -> toggleFoldersVisibility(false)
+            R.id.cab_exclude -> tryExcludeFolder()
+            R.id.cab_copy_to -> copyMoveTo(true)
+            R.id.cab_move_to -> copyMoveTo(false)
+            R.id.cab_select_all -> selectAll()
+            R.id.cab_delete -> askConfirmDelete()
+            R.id.cab_select_photo -> changeAlbumCover(false)
+            R.id.cab_use_default -> changeAlbumCover(true)
+        }
+    }
+
+    override fun prepareActionMode(menu: Menu) {
+        menu.findItem(R.id.cab_rename).isVisible = selectedPositions.size == 1
+        menu.findItem(R.id.cab_change_cover_image).isVisible = selectedPositions.size == 1
+
+        checkHideBtnVisibility(menu)
+        checkPinBtnVisibility(menu)
+    }
+
+    private fun checkHideBtnVisibility(menu: Menu) {
+        var hiddenCnt = 0
+        var unhiddenCnt = 0
+        selectedPositions.mapNotNull { dirs.getOrNull(it)?.path }.forEach {
+            if (File(it).containsNoMedia()) {
+                hiddenCnt++
+            } else {
+                unhiddenCnt++
             }
-            return true
         }
 
-        override fun onCreateActionMode(actionMode: ActionMode?, menu: Menu): Boolean {
+        menu.findItem(R.id.cab_hide).isVisible = unhiddenCnt > 0
-            super.onCreateActionMode(actionMode, menu)
+        menu.findItem(R.id.cab_unhide).isVisible = hiddenCnt > 0
-            actMode = actionMode
+    }
-            activity.menuInflater.inflate(R.menu.cab_directories, menu)
-            return true
-        }
 
-        override fun onPrepareActionMode(actionMode: ActionMode?, menu: Menu): Boolean {
+    private fun checkPinBtnVisibility(menu: Menu) {
-            menu.findItem(R.id.cab_rename).isVisible = selectedPositions.size == 1
+        val pinnedFolders = config.pinnedFolders
-            menu.findItem(R.id.cab_change_cover_image).isVisible = selectedPositions.size == 1
+        var pinnedCnt = 0
-
+        var unpinnedCnt = 0
-            checkHideBtnVisibility(menu)
+        selectedPositions.mapNotNull { dirs.getOrNull(it)?.path }.forEach {
-            checkPinBtnVisibility(menu)
+            if (pinnedFolders.contains(it)) {
-
+                pinnedCnt++
-            return true
+            } else {
-        }
+                unpinnedCnt++
-
-        override fun onDestroyActionMode(actionMode: ActionMode?) {
-            super.onDestroyActionMode(actionMode)
-            selectedPositions.forEach {
-                itemViews[it]?.dir_check?.beGone()
             }
-            selectedPositions.clear()
-            actMode = null
         }
 
-        fun checkHideBtnVisibility(menu: Menu) {
+        menu.findItem(R.id.cab_pin).isVisible = unpinnedCnt > 0
-            var hiddenCnt = 0
+        menu.findItem(R.id.cab_unpin).isVisible = pinnedCnt > 0
-            var unhiddenCnt = 0
-            selectedPositions.mapNotNull { dirs.getOrNull(it)?.path }.forEach {
-                if (File(it).containsNoMedia()) {
-                    hiddenCnt++
-                } else {
-                    unhiddenCnt++
-                }
-            }
-
-            menu.findItem(R.id.cab_hide).isVisible = unhiddenCnt > 0
-            menu.findItem(R.id.cab_unhide).isVisible = hiddenCnt > 0
-        }
-
-        fun checkPinBtnVisibility(menu: Menu) {
-            val pinnedFolders = config.pinnedFolders
-            var pinnedCnt = 0
-            var unpinnedCnt = 0
-            selectedPositions.mapNotNull { dirs.getOrNull(it)?.path }.forEach {
-                if (pinnedFolders.contains(it)) {
-                    pinnedCnt++
-                } else {
-                    unpinnedCnt++
-                }
-            }
-
-            menu.findItem(R.id.cab_pin).isVisible = unpinnedCnt > 0
-            menu.findItem(R.id.cab_unpin).isVisible = pinnedCnt > 0
-        }
     }
 
     private fun showProperties() {
@@ -179,7 +146,7 @@ class DirectoryAdapter(val activity: SimpleActivity, var dirs: MutableList<Direc
         RenameItemDialog(activity, dir.absolutePath) {
             activity.runOnUiThread {
                 listener?.refreshItems()
-                actMode?.finish()
+                finishActMode()
             }
         }
     }
@@ -212,14 +179,14 @@ class DirectoryAdapter(val activity: SimpleActivity, var dirs: MutableList<Direc
     private fun tryExcludeFolder() {
         ExcludeFolderDialog(activity, getSelectedPaths().toList()) {
             listener?.refreshItems()
-            actMode?.finish()
+            finishActMode()
         }
     }
 
     private fun noMediaHandled() {
         activity.runOnUiThread {
             listener?.refreshItems()
-            actMode?.finish()
+            finishActMode()
         }
     }
 
@@ -233,7 +200,7 @@ class DirectoryAdapter(val activity: SimpleActivity, var dirs: MutableList<Direc
         pinnedFolders = config.pinnedFolders
         listener?.recheckPinnedFolders()
         notifyDataSetChanged()
-        actMode?.finish()
+        finishActMode()
     }
 
     private fun copyMoveTo(isCopyOperation: Boolean) {
@@ -249,19 +216,10 @@ class DirectoryAdapter(val activity: SimpleActivity, var dirs: MutableList<Direc
         activity.tryCopyMoveFilesTo(files, isCopyOperation) {
             config.tempFolderPath = ""
             listener?.refreshItems()
-            actMode?.finish()
+            finishActMode()
         }
     }
 
-    fun selectAll() {
-        val cnt = dirs.size
-        for (i in 0 until cnt) {
-            selectedPositions.add(i)
-            notifyItemChanged(i)
-        }
-        updateTitle(cnt)
-    }
-
     private fun askConfirmDelete() {
         ConfirmationDialog(activity) {
             deleteFiles()
@@ -303,7 +261,8 @@ class DirectoryAdapter(val activity: SimpleActivity, var dirs: MutableList<Direc
                     .forEachIndexed { curIndex, i -> newItems.put(curIndex, itemViews[i]) }
 
             itemViews = newItems
-            actMode?.finish()
+            selectableItemCount = dirs.size
+            finishActMode()
         }
     }
 
@@ -338,7 +297,7 @@ class DirectoryAdapter(val activity: SimpleActivity, var dirs: MutableList<Direc
 
     private fun storeCovers(albumCovers: ArrayList<AlbumCover>) {
         activity.config.albumCovers = Gson().toJson(albumCovers)
-        actMode?.finish()
+        finishActMode()
         listener?.refreshItems()
     }
 
@@ -348,30 +307,18 @@ class DirectoryAdapter(val activity: SimpleActivity, var dirs: MutableList<Direc
         return paths
     }
 
-    override fun onCreateViewHolder(parent: ViewGroup?, viewType: Int): ViewHolder {
-        val layoutType = if (isListViewType) R.layout.directory_item_list else R.layout.directory_item_grid
-        val view = LayoutInflater.from(parent?.context).inflate(layoutType, parent, false)
-        return ViewHolder(view, adapterListener, activity, multiSelectorMode, multiSelector, listener, isPickIntent, itemClick)
-    }
-
-    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
-        val dir = dirs[position]
-        itemViews.put(position, holder.bindView(dir, pinnedFolders.contains(dir.path), scrollHorizontally, isListViewType, textColor, showMediaCount, animateGifs, cropThumbnails))
-        toggleItemSelection(selectedPositions.contains(position), position)
-        holder.itemView.tag = holder
-    }
-
     override fun onViewRecycled(holder: ViewHolder?) {
         super.onViewRecycled(holder)
-        holder?.stopLoad()
+        if (!activity.isActivityDestroyed()) {
+            Glide.with(activity).clear(holder?.itemView?.dir_thumbnail)
+        }
     }
 
-    override fun getItemCount() = dirs.size
-
     fun updateDirs(newDirs: ArrayList<Directory>) {
         dirs = newDirs
+        selectableItemCount = dirs.size
         notifyDataSetChanged()
-        actMode?.finish()
+        finishActMode()
     }
 
     fun updateAnimateGifs(animateGifs: Boolean) {
@@ -394,101 +341,23 @@ class DirectoryAdapter(val activity: SimpleActivity, var dirs: MutableList<Direc
         notifyDataSetChanged()
     }
 
-    fun updateTextColor(textColor: Int) {
+    private fun setupView(view: View, directory: Directory) {
-        this.textColor = textColor
+        view.apply {
-        notifyDataSetChanged()
+            dir_name.text = directory.name
-    }
+            dir_path?.text = "${directory.path.substringBeforeLast("/")}/"
+            photo_cnt.text = directory.mediaCnt.toString()
+            activity.loadImage(directory.tmb, dir_thumbnail, scrollHorizontally, animateGifs, cropThumbnails)
+            dir_pin.beVisibleIf(pinnedFolders.contains(directory.path))
+            dir_sd_card.beVisibleIf(activity.isPathOnSD(directory.path))
+            photo_cnt.beVisibleIf(showMediaCount)
 
-    fun selectItem(pos: Int) {
+            if (isListViewType) {
-        toggleItemSelection(true, pos)
+                dir_name.setTextColor(textColor)
-    }
+                dir_path.setTextColor(textColor)
-
+                photo_cnt.setTextColor(textColor)
-    fun selectRange(from: Int, to: Int, min: Int, max: Int) {
+                dir_pin.setColorFilter(textColor, PorterDuff.Mode.SRC_IN)
-        if (from == to) {
+                dir_sd_card.setColorFilter(textColor, PorterDuff.Mode.SRC_IN)
-            (min..max).filter { it != from }
-                    .forEach { toggleItemSelection(false, it) }
-            return
-        }
-
-        if (to < from) {
-            for (i in to..from)
-                toggleItemSelection(true, i)
-
-            if (min > -1 && min < to) {
-                (min until to).filter { it != from }
-                        .forEach { toggleItemSelection(false, it) }
             }
-            if (max > -1) {
-                for (i in from + 1..max)
-                    toggleItemSelection(false, i)
-            }
-        } else {
-            for (i in from..to)
-                toggleItemSelection(true, i)
-
-            if (max > -1 && max > to) {
-                (to + 1..max).filter { it != from }
-                        .forEach { toggleItemSelection(false, it) }
-            }
-
-            if (min > -1) {
-                for (i in min until from)
-                    toggleItemSelection(false, i)
-            }
-        }
-    }
-
-    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, scrollHorizontally: Boolean, isListView: Boolean, textColor: Int, showMediaCount: Boolean,
-                     animateGifs: Boolean, cropThumbnails: Boolean): View {
-            itemView.apply {
-                dir_name.text = directory.name
-                dir_path?.text = "${directory.path.substringBeforeLast("/")}/"
-                photo_cnt.text = directory.mediaCnt.toString()
-                activity.loadImage(directory.tmb, dir_thumbnail, scrollHorizontally, animateGifs, cropThumbnails)
-                dir_pin.beVisibleIf(isPinned)
-                dir_sd_card.beVisibleIf(activity.isPathOnSD(directory.path))
-                photo_cnt.beVisibleIf(showMediaCount)
-
-                if (isListView) {
-                    dir_name.setTextColor(textColor)
-                    dir_path.setTextColor(textColor)
-                    photo_cnt.setTextColor(textColor)
-                    dir_pin.setColorFilter(textColor, PorterDuff.Mode.SRC_IN)
-                    dir_sd_card.setColorFilter(textColor, PorterDuff.Mode.SRC_IN)
-                }
-
-                setOnClickListener { viewClicked(directory) }
-                setOnLongClickListener { if (isPickIntent) viewClicked(directory) else viewLongClicked(); true }
-            }
-            return itemView
-        }
-
-        private fun viewClicked(directory: Directory) {
-            if (multiSelector.isSelectable) {
-                val isSelected = adapterListener.getSelectedPositions().contains(adapterPosition)
-                adapterListener.toggleItemSelectionAdapter(!isSelected, adapterPosition)
-            } else {
-                itemClick(directory)
-            }
-        }
-
-        private fun viewLongClicked() {
-            if (listener != null) {
-                if (!multiSelector.isSelectable) {
-                    activity.startSupportActionMode(multiSelectorCallback)
-                    adapterListener.toggleItemSelectionAdapter(true, adapterPosition)
-                }
-
-                listener.itemLongClicked(adapterPosition)
-            }
-        }
-
-        fun stopLoad() {
-            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1 || !activity.isDestroyed)
-                Glide.with(activity).clear(view.dir_thumbnail)
         }
     }
 
@@ -497,8 +366,6 @@ class DirectoryAdapter(val activity: SimpleActivity, var dirs: MutableList<Direc
 
         fun tryDeleteFolders(folders: ArrayList<File>)
 
-        fun itemLongClicked(position: Int)
-
         fun recheckPinnedFolders()
     }
 }

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

@@ -2,7 +2,6 @@ package com.simplemobiletools.gallery.adapters
 
 import android.graphics.PorterDuff
 import android.net.Uri
-import android.os.Build
 import android.support.v7.view.ActionMode
 import android.support.v7.widget.RecyclerView
 import android.util.SparseArray
@@ -11,14 +10,15 @@ import com.bignerdranch.android.multiselector.ModalMultiSelectorCallback
 import com.bignerdranch.android.multiselector.MultiSelector
 import com.bignerdranch.android.multiselector.SwappingHolder
 import com.bumptech.glide.Glide
+import com.simplemobiletools.commons.activities.BaseSimpleActivity
 import com.simplemobiletools.commons.dialogs.PropertiesDialog
 import com.simplemobiletools.commons.dialogs.RenameItemDialog
 import com.simplemobiletools.commons.extensions.applyColorFilter
 import com.simplemobiletools.commons.extensions.beGone
 import com.simplemobiletools.commons.extensions.beVisibleIf
+import com.simplemobiletools.commons.extensions.isActivityDestroyed
 import com.simplemobiletools.commons.interfaces.MyAdapterListener
 import com.simplemobiletools.gallery.R
-import com.simplemobiletools.gallery.activities.SimpleActivity
 import com.simplemobiletools.gallery.dialogs.DeleteWithRememberDialog
 import com.simplemobiletools.gallery.extensions.*
 import com.simplemobiletools.gallery.helpers.VIEW_TYPE_LIST
@@ -27,7 +27,7 @@ import kotlinx.android.synthetic.main.photo_video_item_grid.view.*
 import java.io.File
 import java.util.*
 
-class MediaAdapter(val activity: SimpleActivity, var media: MutableList<Medium>, val listener: MediaOperationsListener?, val isAGetIntent: Boolean,
+class MediaAdapter(val activity: BaseSimpleActivity, var media: MutableList<Medium>, val listener: MediaOperationsListener?, val isAGetIntent: Boolean,
                    val allowMultiplePicks: Boolean, val itemClick: (Medium) -> Unit) : RecyclerView.Adapter<MediaAdapter.ViewHolder>() {
 
     private val config = activity.config
@@ -77,6 +77,8 @@ class MediaAdapter(val activity: SimpleActivity, var media: MutableList<Medium>,
         }
 
         override fun getSelectedPositions(): HashSet<Int> = selectedPositions
+
+        override fun itemLongClicked(position: Int) {}
     }
 
     private val multiSelectorMode = object : ModalMultiSelectorCallback(multiSelector) {
@@ -366,7 +368,7 @@ class MediaAdapter(val activity: SimpleActivity, var media: MutableList<Medium>,
         }
     }
 
-    class ViewHolder(val view: View, val adapterListener: MyAdapterListener, val activity: SimpleActivity, val multiSelectorCallback: ModalMultiSelectorCallback,
+    class ViewHolder(val view: View, val adapterListener: MyAdapterListener, val activity: BaseSimpleActivity, val multiSelectorCallback: ModalMultiSelectorCallback,
                      val multiSelector: MultiSelector, val listener: MediaOperationsListener?, val allowMultiplePicks: Boolean,
                      val itemClick: (Medium) -> (Unit)) :
             SwappingHolder(view, MultiSelector()) {
@@ -410,7 +412,7 @@ class MediaAdapter(val activity: SimpleActivity, var media: MutableList<Medium>,
         }
 
         fun stopLoad() {
-            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1 || !activity.isDestroyed)
+            if (!activity.isActivityDestroyed())
                 Glide.with(activity).clear(view.medium_thumbnail)
         }
     }

app/src/main/kotlin/com/simplemobiletools/gallery/dialogs/ChangeSortingDialog.kt

@@ -4,15 +4,15 @@ import android.content.DialogInterface
 import android.support.v7.app.AlertDialog
 import android.view.LayoutInflater
 import android.view.View
+import com.simplemobiletools.commons.activities.BaseSimpleActivity
 import com.simplemobiletools.commons.extensions.beVisibleIf
 import com.simplemobiletools.commons.extensions.setupDialogStuff
 import com.simplemobiletools.commons.helpers.*
 import com.simplemobiletools.gallery.R
-import com.simplemobiletools.gallery.activities.SimpleActivity
 import com.simplemobiletools.gallery.extensions.config
 import kotlinx.android.synthetic.main.dialog_change_sorting.view.*
 
-class ChangeSortingDialog(val activity: SimpleActivity, val isDirectorySorting: Boolean, showFolderCheckbox: Boolean,
+class ChangeSortingDialog(val activity: BaseSimpleActivity, val isDirectorySorting: Boolean, showFolderCheckbox: Boolean,
                           val path: String = "", val callback: () -> Unit) :
         DialogInterface.OnClickListener {
     private var currSorting = 0

app/src/main/kotlin/com/simplemobiletools/gallery/dialogs/ExcludeFolderDialog.kt

@@ -5,15 +5,15 @@ import android.view.LayoutInflater
 import android.view.ViewGroup
 import android.widget.RadioButton
 import android.widget.RadioGroup
+import com.simplemobiletools.commons.activities.BaseSimpleActivity
 import com.simplemobiletools.commons.extensions.beVisibleIf
 import com.simplemobiletools.commons.extensions.getBasePath
 import com.simplemobiletools.commons.extensions.setupDialogStuff
 import com.simplemobiletools.gallery.R
-import com.simplemobiletools.gallery.activities.SimpleActivity
 import com.simplemobiletools.gallery.extensions.config
 import kotlinx.android.synthetic.main.dialog_exclude_folder.view.*
 
-class ExcludeFolderDialog(val activity: SimpleActivity, val selectedPaths: List<String>, val callback: () -> Unit) {
+class ExcludeFolderDialog(val activity: BaseSimpleActivity, val selectedPaths: List<String>, val callback: () -> Unit) {
     val alternativePaths = getAlternativePathsList()
     var radioGroup: RadioGroup? = null
 

app/src/main/kotlin/com/simplemobiletools/gallery/dialogs/FilterMediaDialog.kt

@@ -3,16 +3,16 @@ package com.simplemobiletools.gallery.dialogs
 import android.support.v7.app.AlertDialog
 import android.view.LayoutInflater
 import android.view.View
+import com.simplemobiletools.commons.activities.BaseSimpleActivity
 import com.simplemobiletools.commons.extensions.setupDialogStuff
 import com.simplemobiletools.gallery.R
-import com.simplemobiletools.gallery.activities.SimpleActivity
 import com.simplemobiletools.gallery.extensions.config
 import com.simplemobiletools.gallery.helpers.GIFS
 import com.simplemobiletools.gallery.helpers.IMAGES
 import com.simplemobiletools.gallery.helpers.VIDEOS
 import kotlinx.android.synthetic.main.dialog_filter_media.view.*
 
-class FilterMediaDialog(val activity: SimpleActivity, val callback: (result: Int) -> Unit) {
+class FilterMediaDialog(val activity: BaseSimpleActivity, val callback: (result: Int) -> Unit) {
     private var view: View = LayoutInflater.from(activity).inflate(R.layout.dialog_filter_media, null)
 
     init {

app/src/main/kotlin/com/simplemobiletools/gallery/dialogs/ManageExtendedDetailsDialog.kt

@@ -3,6 +3,7 @@ package com.simplemobiletools.gallery.dialogs
 import android.support.v7.app.AlertDialog
 import android.view.LayoutInflater
 import android.view.View
+import com.simplemobiletools.commons.activities.BaseSimpleActivity
 import com.simplemobiletools.commons.extensions.setupDialogStuff
 import com.simplemobiletools.gallery.R
 import com.simplemobiletools.gallery.activities.SimpleActivity
@@ -10,7 +11,7 @@ import com.simplemobiletools.gallery.extensions.config
 import com.simplemobiletools.gallery.helpers.*
 import kotlinx.android.synthetic.main.dialog_manage_extended_details.view.*
 
-class ManageExtendedDetailsDialog(val activity: SimpleActivity, val callback: (result: Int) -> Unit) {
+class ManageExtendedDetailsDialog(val activity: BaseSimpleActivity, val callback: (result: Int) -> Unit) {
     private var view: View = LayoutInflater.from(activity).inflate(R.layout.dialog_manage_extended_details, null)
 
     init {

app/src/main/kotlin/com/simplemobiletools/gallery/dialogs/PickDirectoryDialog.kt

@@ -3,15 +3,16 @@ package com.simplemobiletools.gallery.dialogs
 import android.support.v7.app.AlertDialog
 import android.support.v7.widget.GridLayoutManager
 import android.view.LayoutInflater
+import com.simplemobiletools.commons.activities.BaseSimpleActivity
 import com.simplemobiletools.commons.dialogs.FilePickerDialog
 import com.simplemobiletools.commons.extensions.beGoneIf
 import com.simplemobiletools.commons.extensions.beVisibleIf
 import com.simplemobiletools.commons.extensions.setupDialogStuff
 import com.simplemobiletools.commons.extensions.toast
 import com.simplemobiletools.gallery.R
-import com.simplemobiletools.gallery.activities.SimpleActivity
 import com.simplemobiletools.gallery.adapters.DirectoryAdapter
 import com.simplemobiletools.gallery.asynctasks.GetDirectoriesAsynctask
+import com.simplemobiletools.gallery.extensions.addTempFolderIfNeeded
 import com.simplemobiletools.gallery.extensions.config
 import com.simplemobiletools.gallery.extensions.getCachedDirectories
 import com.simplemobiletools.gallery.extensions.getSortedDirectories
@@ -19,7 +20,7 @@ import com.simplemobiletools.gallery.helpers.VIEW_TYPE_GRID
 import com.simplemobiletools.gallery.models.Directory
 import kotlinx.android.synthetic.main.dialog_directory_picker.view.*
 
-class PickDirectoryDialog(val activity: SimpleActivity, val sourcePath: String, val callback: (path: String) -> Unit) {
+class PickDirectoryDialog(val activity: BaseSimpleActivity, val sourcePath: String, val callback: (path: String) -> Unit) {
     var dialog: AlertDialog
     var shownDirectories = ArrayList<Directory>()
     var view = LayoutInflater.from(activity).inflate(R.layout.dialog_directory_picker, null)
@@ -62,8 +63,8 @@ class PickDirectoryDialog(val activity: SimpleActivity, val sourcePath: String,
             return
 
         shownDirectories = dirs
-        val adapter = DirectoryAdapter(activity, dirs, null, true) {
+        val adapter = DirectoryAdapter(activity, dirs, null, view.directories_grid, true) {
-            if (it.path.trimEnd('/') == sourcePath) {
+            if ((it as Directory).path.trimEnd('/') == sourcePath) {
                 activity.toast(R.string.source_and_destination_same)
                 return@DirectoryAdapter
             } else {

app/src/main/kotlin/com/simplemobiletools/gallery/dialogs/PickMediumDialog.kt

@@ -3,11 +3,11 @@ package com.simplemobiletools.gallery.dialogs
 import android.support.v7.app.AlertDialog
 import android.support.v7.widget.GridLayoutManager
 import android.view.LayoutInflater
+import com.simplemobiletools.commons.activities.BaseSimpleActivity
 import com.simplemobiletools.commons.extensions.beGoneIf
 import com.simplemobiletools.commons.extensions.beVisibleIf
 import com.simplemobiletools.commons.extensions.setupDialogStuff
 import com.simplemobiletools.gallery.R
-import com.simplemobiletools.gallery.activities.SimpleActivity
 import com.simplemobiletools.gallery.adapters.MediaAdapter
 import com.simplemobiletools.gallery.asynctasks.GetMediaAsynctask
 import com.simplemobiletools.gallery.extensions.config
@@ -16,7 +16,7 @@ import com.simplemobiletools.gallery.helpers.VIEW_TYPE_GRID
 import com.simplemobiletools.gallery.models.Medium
 import kotlinx.android.synthetic.main.dialog_medium_picker.view.*
 
-class PickMediumDialog(val activity: SimpleActivity, val path: String, val callback: (path: String) -> Unit) {
+class PickMediumDialog(val activity: BaseSimpleActivity, val path: String, val callback: (path: String) -> Unit) {
     var dialog: AlertDialog
     var shownMedia = ArrayList<Medium>()
     val view = LayoutInflater.from(activity).inflate(R.layout.dialog_medium_picker, null)

app/src/main/kotlin/com/simplemobiletools/gallery/dialogs/ResizeDialog.kt

@@ -7,14 +7,14 @@ import android.text.TextWatcher
 import android.view.LayoutInflater
 import android.view.WindowManager
 import android.widget.EditText
+import com.simplemobiletools.commons.activities.BaseSimpleActivity
 import com.simplemobiletools.commons.extensions.setupDialogStuff
 import com.simplemobiletools.commons.extensions.toast
 import com.simplemobiletools.commons.extensions.value
 import com.simplemobiletools.gallery.R
-import com.simplemobiletools.gallery.activities.SimpleActivity
 import kotlinx.android.synthetic.main.resize_image.view.*
 
-class ResizeDialog(val activity: SimpleActivity, val size: Point, val callback: (newSize: Point) -> Unit) {
+class ResizeDialog(val activity: BaseSimpleActivity, val size: Point, val callback: (newSize: Point) -> Unit) {
     init {
         val view = LayoutInflater.from(activity).inflate(R.layout.resize_image, null)
         val widthView = view.image_width

app/src/main/kotlin/com/simplemobiletools/gallery/dialogs/SaveAsDialog.kt

@@ -3,15 +3,15 @@ package com.simplemobiletools.gallery.dialogs
 import android.support.v7.app.AlertDialog
 import android.view.LayoutInflater
 import android.view.WindowManager
+import com.simplemobiletools.commons.activities.BaseSimpleActivity
 import com.simplemobiletools.commons.dialogs.ConfirmationDialog
 import com.simplemobiletools.commons.dialogs.FilePickerDialog
 import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.gallery.R
-import com.simplemobiletools.gallery.activities.SimpleActivity
 import kotlinx.android.synthetic.main.dialog_save_as.view.*
 import java.io.File
 
-class SaveAsDialog(val activity: SimpleActivity, val path: String, val appendFilename: Boolean, val callback: (savePath: String) -> Unit) {
+class SaveAsDialog(val activity: BaseSimpleActivity, val path: String, val appendFilename: Boolean, val callback: (savePath: String) -> Unit) {
 
     init {
         var realPath = File(path).parent.trimEnd('/')

app/src/main/kotlin/com/simplemobiletools/gallery/dialogs/SlideshowDialog.kt

@@ -4,16 +4,16 @@ import android.support.v7.app.AlertDialog
 import android.view.LayoutInflater
 import android.view.View
 import android.view.WindowManager
+import com.simplemobiletools.commons.activities.BaseSimpleActivity
 import com.simplemobiletools.commons.extensions.hideKeyboard
 import com.simplemobiletools.commons.extensions.setupDialogStuff
 import com.simplemobiletools.commons.extensions.toast
 import com.simplemobiletools.gallery.R
-import com.simplemobiletools.gallery.activities.SimpleActivity
 import com.simplemobiletools.gallery.extensions.config
 import com.simplemobiletools.gallery.helpers.SLIDESHOW_DEFAULT_INTERVAL
 import kotlinx.android.synthetic.main.dialog_slideshow.view.*
 
-class SlideshowDialog(val activity: SimpleActivity, val callback: () -> Unit) {
+class SlideshowDialog(val activity: BaseSimpleActivity, val callback: () -> Unit) {
     val view: View
 
     init {

app/src/main/kotlin/com/simplemobiletools/gallery/extensions/activity.kt

@@ -14,11 +14,13 @@ import com.bumptech.glide.load.resource.drawable.DrawableTransitionOptions
 import com.bumptech.glide.request.RequestOptions
 import com.google.gson.Gson
 import com.google.gson.reflect.TypeToken
+import com.simplemobiletools.commons.activities.BaseSimpleActivity
 import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.commons.helpers.*
 import com.simplemobiletools.gallery.BuildConfig
 import com.simplemobiletools.gallery.R
 import com.simplemobiletools.gallery.activities.SimpleActivity
+import com.simplemobiletools.gallery.dialogs.PickDirectoryDialog
 import com.simplemobiletools.gallery.helpers.NOMEDIA
 import com.simplemobiletools.gallery.models.Directory
 import com.simplemobiletools.gallery.models.Medium
@@ -89,7 +91,7 @@ fun AppCompatActivity.hideSystemUI() {
             View.SYSTEM_UI_FLAG_IMMERSIVE
 }
 
-fun SimpleActivity.addNoMedia(path: String, callback: () -> Unit) {
+fun BaseSimpleActivity.addNoMedia(path: String, callback: () -> Unit) {
     val file = File(path, NOMEDIA)
     if (file.exists())
         return
@@ -116,14 +118,14 @@ fun SimpleActivity.addNoMedia(path: String, callback: () -> Unit) {
     }
 }
 
-fun SimpleActivity.removeNoMedia(path: String, callback: (() -> Unit)? = null) {
+fun BaseSimpleActivity.removeNoMedia(path: String, callback: (() -> Unit)? = null) {
     val file = File(path, NOMEDIA)
     deleteFile(file) {
         callback?.invoke()
     }
 }
 
-fun SimpleActivity.toggleFileVisibility(oldFile: File, hide: Boolean, callback: ((newFile: File) -> Unit)? = null) {
+fun BaseSimpleActivity.toggleFileVisibility(oldFile: File, hide: Boolean, callback: ((newFile: File) -> Unit)? = null) {
     val path = oldFile.parent
     var filename = oldFile.name
     filename = if (hide) {
@@ -162,6 +164,29 @@ fun Activity.loadImage(path: String, target: MySquareImageView, horizontalScroll
     }
 }
 
+fun BaseSimpleActivity.tryCopyMoveFilesTo(files: ArrayList<File>, isCopyOperation: Boolean, callback: () -> Unit) {
+    if (files.isEmpty()) {
+        toast(R.string.unknown_error_occurred)
+        return
+    }
+
+    val source = if (files[0].isFile) files[0].parent else files[0].absolutePath
+    PickDirectoryDialog(this, source) {
+        copyMoveFilesTo(files, source.trimEnd('/'), it, isCopyOperation, true, callback)
+    }
+}
+
+fun BaseSimpleActivity.addTempFolderIfNeeded(dirs: ArrayList<Directory>): ArrayList<Directory> {
+    val directories = ArrayList<Directory>()
+    val tempFolderPath = config.tempFolderPath
+    if (tempFolderPath.isNotEmpty()) {
+        val newFolder = Directory(tempFolderPath, "", tempFolderPath.getFilenameFromPath(), 0, 0, 0, 0L)
+        directories.add(newFolder)
+    }
+    directories.addAll(dirs)
+    return directories
+}
+
 fun Activity.loadPng(path: String, target: MySquareImageView, cropThumbnails: Boolean) {
     val options = RequestOptions()
             .signature(path.getFileSignature())

app/src/main/kotlin/com/simplemobiletools/gallery/fragments/PhotoFragment.kt

@@ -7,7 +7,6 @@ import android.graphics.Color
 import android.graphics.Matrix
 import android.graphics.drawable.ColorDrawable
 import android.net.Uri
-import android.os.Build
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
@@ -302,7 +301,7 @@ class PhotoFragment : ViewPagerFragment() {
 
     override fun onDestroyView() {
         super.onDestroyView()
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1 && !activity!!.isDestroyed) {
+        if (activity?.isActivityDestroyed() == false) {
             Glide.with(context).clear(view.gif_view)
         }
     }

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

@@ -33,7 +33,7 @@
             android:text="@string/change_filters_underlined"
             android:visibility="gone"/>
 
-        <com.simplemobiletools.commons.views.MyScalableRecyclerView
+        <com.simplemobiletools.commons.views.MyRecyclerView
             android:id="@+id/directories_grid"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"

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

@@ -33,7 +33,7 @@
             android:text="@string/change_filters_underlined"
             android:visibility="gone"/>
 
-        <com.simplemobiletools.commons.views.MyScalableRecyclerView
+        <com.simplemobiletools.commons.views.MyRecyclerView
             android:id="@+id/media_grid"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"

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

@@ -7,7 +7,7 @@
     android:layout_height="wrap_content"
     android:paddingTop="@dimen/activity_margin">
 
-    <com.simplemobiletools.commons.views.MyScalableRecyclerView
+    <com.simplemobiletools.commons.views.MyRecyclerView
         android:id="@+id/directories_grid"
         android:layout_width="match_parent"
         android:layout_height="match_parent"

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

@@ -6,7 +6,7 @@
     android:layout_height="wrap_content"
     android:paddingTop="@dimen/activity_margin">
 
-    <com.simplemobiletools.commons.views.MyScalableRecyclerView
+    <com.simplemobiletools.commons.views.MyRecyclerView
         android:id="@+id/media_grid"
         android:layout_width="match_parent"
         android:layout_height="match_parent"

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

@@ -4,6 +4,8 @@
     android:id="@+id/dir_holder"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
+    android:clickable="true"
+    android:focusable="true"
     android:padding="1px">
 
     <com.simplemobiletools.gallery.views.MySquareImageView

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

@@ -5,6 +5,8 @@
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:paddingLeft="@dimen/small_margin"
+    android:clickable="true"
+    android:focusable="true"
     android:paddingTop="@dimen/small_margin">
 
     <com.simplemobiletools.gallery.views.MySquareImageView

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

@@ -4,6 +4,8 @@
     android:id="@+id/media_item_holder"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
+    android:clickable="true"
+    android:focusable="true"
     android:padding="1px">
 
     <com.simplemobiletools.gallery.views.MySquareImageView

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

@@ -4,6 +4,8 @@
     android:id="@+id/media_item_holder"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
+    android:clickable="true"
+    android:focusable="true"
     android:paddingLeft="@dimen/small_margin"
     android:paddingTop="@dimen/small_margin">
 

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_launcher_background"/>
+    <background android:drawable="@color/color_primary"/>
     <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
 </adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_launcher_background"/>
+    <background android:drawable="@color/color_primary"/>
     <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
 </adaptive-icon>

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

@@ -7,6 +7,4 @@
     <!-- Default colors -->
     <color name="default_text_color">@color/default_dark_theme_text_color</color>
     <color name="default_background_color">@color/default_dark_theme_background_color</color>
-
-    <color name="ic_launcher_background">@color/color_primary</color>
 </resources>