use the copy function of the Commons library

app/build.gradle

@@ -32,7 +32,7 @@ android {
 }
 
 dependencies {
-    compile 'com.simplemobiletools:commons:2.16.9'
+    compile 'com.simplemobiletools:commons:2.17.2'
     compile 'com.bignerdranch.android:recyclerview-multiselect:0.2'
     compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
 }

app/src/main/kotlin/com/simplemobiletools/filemanager/adapters/ItemsAdapter.kt

@@ -12,6 +12,7 @@ import com.bignerdranch.android.multiselector.SwappingHolder
 import com.bumptech.glide.Glide
 import com.simplemobiletools.commons.asynctasks.CopyMoveTask
 import com.simplemobiletools.commons.dialogs.ConfirmationDialog
+import com.simplemobiletools.commons.dialogs.FilePickerDialog
 import com.simplemobiletools.commons.dialogs.PropertiesDialog
 import com.simplemobiletools.commons.dialogs.RenameItemDialog
 import com.simplemobiletools.commons.extensions.formatSize
@@ -73,7 +74,8 @@ class ItemsAdapter(val activity: SimpleActivity, var mItems: MutableList<FileDir
                 R.id.cab_rename -> displayRenameDialog()
                 R.id.cab_properties -> showProperties()
                 R.id.cab_share -> shareFiles()
-                R.id.cab_copy_move -> displayCopyDialog()
+                R.id.cab_copy_to -> copyMoveTo(true)
+                R.id.cab_move_to -> copyMoveTo(false)
                 R.id.cab_delete -> askConfirmDelete()
                 else -> return false
             }
@@ -162,6 +164,22 @@ class ItemsAdapter(val activity: SimpleActivity, var mItems: MutableList<FileDir
         })
     }
 
+    private fun copyMoveTo(isCopyOperation: Boolean) {
+        val files = ArrayList<File>()
+        val positions = multiSelector.selectedPositions
+        positions.forEach { files.add(File(mItems[it].path)) }
+
+        val source = if (files[0].isFile) files[0].parent else files[0].absolutePath
+        FilePickerDialog(activity, source, false, config.showHidden, true) {
+            activity.copyMoveFilesTo(files, source, it, isCopyOperation, false) {
+                if (!isCopyOperation) {
+                    listener?.refreshItems()
+                }
+                actMode?.finish()
+            }
+        }
+    }
+
     private fun askConfirmDelete() {
         ConfirmationDialog(activity) {
             actMode?.finish()

app/src/main/res/menu/cab.xml

@@ -17,10 +17,13 @@
         android:title="@string/share"
         app:showAsAction="ifRoom"/>
     <item
-        android:id="@+id/cab_copy_move"
+        android:id="@+id/cab_copy_to"
-        android:icon="@drawable/ic_copy"
+        android:title="@string/copy_to"
-        android:title="@string/copy_move"
+        app:showAsAction="never"/>
-        app:showAsAction="ifRoom"/>
+    <item
+        android:id="@+id/cab_move_to"
+        android:title="@string/move_to"
+        app:showAsAction="never"/>
     <item
         android:id="@+id/cab_delete"
         android:icon="@drawable/ic_delete"