remember last used copy destination on "Select destination" picker -> "Other folder"

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

@@ -20,6 +20,7 @@ import com.simplemobiletools.gallery.pro.adapters.DirectoryAdapter
 import com.simplemobiletools.gallery.pro.extensions.*
 import com.simplemobiletools.gallery.pro.models.Directory
 import kotlinx.android.synthetic.main.dialog_directory_picker.view.*
+import java.io.File
 
 class PickDirectoryDialog(
     val activity: BaseSimpleActivity,
@@ -38,7 +39,7 @@ class PickDirectoryDialog(
     private var isGridViewType = activity.config.viewTypeFolders == VIEW_TYPE_GRID
     private var showHidden = activity.config.shouldShowHidden
     private var currentPathPrefix = ""
-    private val config = view.context.config
+    private val config = activity.config
     private val searchView = view.folder_search_view
     private val searchEditText = view.findViewById<EditText>(R.id.top_toolbar_search)
     private val searchViewAppBarLayout = view.findViewById<View>(R.id.top_app_bar_layout)
@@ -169,7 +170,8 @@ class PickDirectoryDialog(
 
     private fun showOtherFolder() {
         activity.hideKeyboard(searchEditText)
-        FilePickerDialog(activity, sourcePath, !isPickingCopyMoveDestination && !isPickingFolderForWidget, showHidden, true, true) {
+        FilePickerDialog(activity, getOtherFolderOpeningPath(), !isPickingCopyMoveDestination && !isPickingFolderForWidget, showHidden, true, true) {
+            config.lastCopyPath = it
             activity.handleLockedFolderOpening(it) { success ->
                 if (success) {
                     callback(it)
@@ -178,6 +180,24 @@ class PickDirectoryDialog(
         }
     }
 
+    private fun getOtherFolderOpeningPath(): String {
+        val lastCopyPath = config.lastCopyPath
+
+        val lastCopyPathExist = {
+            activity.getDoesFilePathExist(lastCopyPath)
+        }
+
+        val lastCopyPathVisible = {
+            showHidden || !lastCopyPath.split(File.separator).any { it.startsWith(".") && it.length > 1 }
+        }
+
+        return if (lastCopyPathExist() && lastCopyPathVisible()) {
+            lastCopyPath
+        } else {
+            sourcePath
+        }
+    }
+
     private fun gotDirectories(newDirs: ArrayList<Directory>) {
         if (allDirectories.isEmpty()) {
             allDirectories = newDirs.clone() as ArrayList<Directory>

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

@@ -363,6 +363,10 @@ class Config(context: Context) : BaseConfig(context) {
         get() = prefs.getString(LAST_FILEPICKER_PATH, "")!!
         set(lastFilepickerPath) = prefs.edit().putString(LAST_FILEPICKER_PATH, lastFilepickerPath).apply()
 
+    var lastCopyPath: String
+        get() = prefs.getString(LAST_COPY_PATH, "")!!
+        set(lastCopyPath) = prefs.edit().putString(LAST_COPY_PATH, lastCopyPath).apply()
+
     var tempSkipDeleteConfirmation: Boolean
         get() = prefs.getBoolean(TEMP_SKIP_DELETE_CONFIRMATION, false)
         set(tempSkipDeleteConfirmation) = prefs.edit().putBoolean(TEMP_SKIP_DELETE_CONFIRMATION, tempSkipDeleteConfirmation).apply()

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

@@ -56,6 +56,7 @@ const val HIDE_EXTENDED_DETAILS = "hide_extended_details"
 const val ALLOW_INSTANT_CHANGE = "allow_instant_change"
 const val WAS_NEW_APP_SHOWN = "was_new_app_shown_clock"
 const val LAST_FILEPICKER_PATH = "last_filepicker_path"
+const val LAST_COPY_PATH = "last_copy_path"
 const val TEMP_SKIP_DELETE_CONFIRMATION = "temp_skip_delete_confirmation"
 const val TEMP_SKIP_RECYCLE_BIN = "temp_skip_recycle_bin"
 const val BOTTOM_ACTIONS = "bottom_actions"