allow sorting items by proper numeric values in their names

app/build.gradle

@@ -58,7 +58,7 @@ android {
 }
 
 dependencies {
-    implementation 'com.simplemobiletools:commons:5.28.24'
+    implementation 'com.simplemobiletools:commons:5.29.1'
     implementation 'com.github.Stericson:RootTools:df729dcb13'
     implementation 'com.github.Stericson:RootShell:1.6'
     implementation 'com.alexvasilkov:gesture-views:2.5.2'

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/dialogs/ChangeSortingDialog.kt

@@ -1,7 +1,9 @@
 package com.simplemobiletools.filemanager.pro.dialogs
 
+import android.view.View
 import androidx.appcompat.app.AlertDialog
 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.filemanager.pro.R
@@ -11,10 +13,16 @@ import kotlinx.android.synthetic.main.dialog_change_sorting.view.*
 class ChangeSortingDialog(val activity: BaseSimpleActivity, val path: String = "", val callback: () -> Unit) {
     private var currSorting = 0
     private var config = activity.config
-    private var view = activity.layoutInflater.inflate(R.layout.dialog_change_sorting, null)
+    private var view: View
 
     init {
-        view.sorting_dialog_use_for_this_folder.isChecked = config.hasCustomSorting(path)
+        currSorting = config.getFolderSorting(path)
+        view = activity.layoutInflater.inflate(R.layout.dialog_change_sorting, null).apply {
+            sorting_dialog_use_for_this_folder.isChecked = config.hasCustomSorting(path)
+
+            sorting_dialog_numeric_sorting.beVisibleIf(currSorting and SORT_BY_NAME != 0)
+            sorting_dialog_numeric_sorting.isChecked = currSorting and SORT_USE_NUMERIC_VALUE != 0
+        }
 
         AlertDialog.Builder(activity)
             .setPositiveButton(R.string.ok) { dialog, which -> dialogConfirmed() }
@@ -23,13 +31,18 @@ class ChangeSortingDialog(val activity: BaseSimpleActivity, val path: String = "
                 activity.setupDialogStuff(view, this, R.string.sort_by)
             }
 
-        currSorting = config.getFolderSorting(path)
         setupSortRadio()
         setupOrderRadio()
     }
 
     private fun setupSortRadio() {
         val sortingRadio = view.sorting_dialog_radio_sorting
+
+        sortingRadio.setOnCheckedChangeListener { group, checkedId ->
+            val isSortingByName = checkedId == sortingRadio.sorting_dialog_radio_name.id
+            view.sorting_dialog_numeric_sorting.beVisibleIf(isSortingByName)
+        }
+
         val sortBtn = when {
             currSorting and SORT_BY_SIZE != 0 -> sortingRadio.sorting_dialog_radio_size
             currSorting and SORT_BY_DATE_MODIFIED != 0 -> sortingRadio.sorting_dialog_radio_last_modified
@@ -62,6 +75,10 @@ class ChangeSortingDialog(val activity: BaseSimpleActivity, val path: String = "
             sorting = sorting or SORT_DESCENDING
         }
 
+        if (view.sorting_dialog_numeric_sorting.isChecked) {
+            sorting = sorting or SORT_USE_NUMERIC_VALUE
+        }
+
         if (view.sorting_dialog_use_for_this_folder.isChecked) {
             config.saveCustomSorting(path, sorting)
         } else {

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

@@ -83,12 +83,21 @@
             android:id="@+id/use_for_this_folder_divider"
             layout="@layout/divider" />
 
+        <com.simplemobiletools.commons.views.MyAppCompatCheckbox
+            android:id="@+id/sorting_dialog_numeric_sorting"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="@dimen/small_margin"
+            android:paddingTop="@dimen/normal_margin"
+            android:paddingBottom="@dimen/normal_margin"
+            android:text="@string/sort_numeric_parts" />
+
         <com.simplemobiletools.commons.views.MyAppCompatCheckbox
             android:id="@+id/sorting_dialog_use_for_this_folder"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:paddingTop="@dimen/activity_margin"
+            android:paddingTop="@dimen/normal_margin"
-            android:paddingBottom="@dimen/activity_margin"
+            android:paddingBottom="@dimen/normal_margin"
             android:text="@string/use_for_this_folder" />
 
     </LinearLayout>

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

@@ -0,0 +1,3 @@
+<resources>
+    <integer name="default_sorting">32769</integer>
+</resources>