show the warning at deleting a folder in red

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

@@ -23,6 +23,7 @@ import com.simplemobiletools.commons.views.FastScroller
 import com.simplemobiletools.commons.views.MyRecyclerView
 import com.simplemobiletools.gallery.pro.R
 import com.simplemobiletools.gallery.pro.activities.MediaActivity
+import com.simplemobiletools.gallery.pro.dialogs.ConfirmDeleteFolderDialog
 import com.simplemobiletools.gallery.pro.dialogs.ExcludeFolderDialog
 import com.simplemobiletools.gallery.pro.dialogs.PickMediumDialog
 import com.simplemobiletools.gallery.pro.extensions.*
@@ -399,10 +400,9 @@ class DirectoryAdapter(activity: BaseSimpleActivity, var dirs: ArrayList<Directo
                     R.string.move_to_recycle_bin_confirmation
                 }
 
-                var question = String.format(resources.getString(baseString), items)
+                val question = String.format(resources.getString(baseString), items)
                 val warning = resources.getQuantityString(R.plurals.delete_warning, itemsCnt, itemsCnt)
-                question += "\n\n$warning"
+                ConfirmDeleteFolderDialog(activity, question, warning) {
-                ConfirmationDialog(activity, question) {
                     deleteFolders()
                 }
             }

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

@@ -0,0 +1,31 @@
+package com.simplemobiletools.gallery.pro.dialogs
+
+import android.app.Activity
+import androidx.appcompat.app.AlertDialog
+import com.simplemobiletools.commons.extensions.setupDialogStuff
+import com.simplemobiletools.gallery.pro.R
+import kotlinx.android.synthetic.main.dialog_confirm_delete_folder.view.*
+
+class ConfirmDeleteFolderDialog(activity: Activity, message: String, warningMessage: String, val callback: () -> Unit) {
+    var dialog: AlertDialog
+
+    init {
+        val view = activity.layoutInflater.inflate(R.layout.dialog_confirm_delete_folder, null)
+        view.message.text = message
+        view.message_warning.text = warningMessage
+
+        val builder = AlertDialog.Builder(activity)
+                .setPositiveButton(R.string.yes) { dialog, which -> dialogConfirmed() }
+
+        builder.setNegativeButton(R.string.no, null)
+
+        dialog = builder.create().apply {
+            activity.setupDialogStuff(view, this)
+        }
+    }
+
+    private fun dialogConfirmed() {
+        dialog.dismiss()
+        callback()
+    }
+}

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

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/dialog_confirm_delete_folder_holder"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <com.simplemobiletools.commons.views.MyTextView
+        android:id="@+id/message"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingLeft="@dimen/big_margin"
+        android:paddingTop="@dimen/big_margin"
+        android:paddingRight="@dimen/big_margin"
+        android:textSize="@dimen/bigger_text_size"/>
+
+    <TextView
+        android:id="@+id/message_warning"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/message"
+        android:paddingLeft="@dimen/big_margin"
+        android:paddingTop="@dimen/big_margin"
+        android:paddingRight="@dimen/big_margin"
+        android:paddingBottom="@dimen/activity_margin"
+        android:textColor="@color/md_red_700"
+        android:textSize="@dimen/bigger_text_size"/>
+
+</RelativeLayout>