update commons to 2.21.15

Author: tibbi

app/build.gradle

@@ -32,7 +32,7 @@ android {
 }
 
 dependencies {
-    compile 'com.simplemobiletools:commons:2.21.11'
+    compile 'com.simplemobiletools:commons:2.21.15'
     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

@@ -24,7 +24,6 @@ import kotlinx.android.synthetic.main.list_item.view.*
 import java.io.File
 import java.util.*
 
-
 class ItemsAdapter(val activity: SimpleActivity, var mItems: MutableList<FileDirItem>, val listener: ItemOperationsListener?, val itemClick: (FileDirItem) -> Unit) :
         RecyclerView.Adapter<ItemsAdapter.ViewHolder>() {
 

app/src/main/kotlin/com/simplemobiletools/filemanager/fragments/ItemsFragment.kt

@@ -94,8 +94,8 @@ class ItemsFragment : Fragment(), ItemsAdapter.ItemOperationsListener {
                                 itemClicked(it)
                             }
                             addItemDecoration(RecyclerViewDivider(context))
+                            isDragSelectionEnabled = true
                         }
-                        items_list.isDragSelectionEnabled = true
                         items_fastscroller.setViews(items_list, items_swipe_refresh)
                         setupRecyclerViewListener()
                     } else {