add a settings toggle for toggling recycle bin usage

app/src/main/kotlin/com/simplemobiletools/gallery/activities/SettingsActivity.kt

@@ -70,12 +70,13 @@ class SettingsActivity : SimpleActivity() {
         setupSkipDeleteConfirmation()
         updateTextColors(settings_holder)
         setupSectionColors()
+        setupUseRecycleBin()
     }
 
     private fun setupSectionColors() {
         val adjustedPrimaryColor = getAdjustedPrimaryColor()
         arrayListOf(visibility_label, videos_label, thumbnails_label, scrolling_label, fullscreen_media_label, security_label,
-                file_operations_label, extended_details_label).forEach {
+                file_operations_label, extended_details_label, recycle_bin_label).forEach {
             it.setTextColor(adjustedPrimaryColor)
         }
     }
@@ -409,4 +410,12 @@ class SettingsActivity : SimpleActivity() {
         ROTATE_BY_DEVICE_ROTATION -> R.string.screen_rotation_device_rotation
         else -> R.string.screen_rotation_aspect_ratio
     })
+
+    private fun setupUseRecycleBin() {
+        settings_use_recycle_bin.isChecked = config.useRecycleBin
+        settings_use_recycle_bin_holder.setOnClickListener {
+            settings_use_recycle_bin.toggle()
+            config.useRecycleBin = settings_use_recycle_bin.isChecked
+        }
+    }
 }

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

@@ -356,4 +356,8 @@ class Config(context: Context) : BaseConfig(context) {
     var groupBy: Int
         get() = prefs.getInt(GROUP_BY, GROUP_BY_NONE)
         set(groupBy) = prefs.edit().putInt(GROUP_BY, groupBy).apply()
+
+    var useRecycleBin: Boolean
+        get() = prefs.getBoolean(USE_RECYCLE_BIN, true)
+        set(useRecycleBin) = prefs.edit().putBoolean(USE_RECYCLE_BIN, useRecycleBin).apply()
 }

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

@@ -52,6 +52,7 @@ const val TEMP_SKIP_DELETE_CONFIRMATION = "temp_skip_delete_confirmation"
 const val BOTTOM_ACTIONS = "bottom_actions"
 const val WERE_FAVORITES_PINNED = "were_favorites_pinned"
 const val WAS_RECYCLE_BIN_PINNED = "was_recycle_bin_pinned"
+const val USE_RECYCLE_BIN = "use_recycle_bin"
 const val GROUP_BY = "group_by"
 
 // slideshow

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

@@ -941,5 +941,46 @@
                 android:text="@string/skip_delete_confirmation"/>
 
         </RelativeLayout>
+
+        <View
+            android:id="@+id/recycle_bin_divider"
+            android:layout_width="match_parent"
+            android:layout_height="1px"
+            android:background="@color/divider_grey"
+            android:importantForAccessibility="no"/>
+
+        <com.simplemobiletools.commons.views.MyTextView
+            android:id="@+id/recycle_bin_label"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="@dimen/bigger_margin"
+            android:layout_marginStart="@dimen/bigger_margin"
+            android:layout_marginTop="@dimen/activity_margin"
+            android:text="@string/recycle_bin"
+            android:textAllCaps="true"
+            android:textSize="@dimen/smaller_text_size"/>
+
+        <RelativeLayout
+            android:id="@+id/settings_use_recycle_bin_holder"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="@dimen/medium_margin"
+            android:background="?attr/selectableItemBackground"
+            android:paddingBottom="@dimen/activity_margin"
+            android:paddingLeft="@dimen/normal_margin"
+            android:paddingRight="@dimen/normal_margin"
+            android:paddingTop="@dimen/activity_margin">
+
+            <com.simplemobiletools.commons.views.MySwitchCompat
+                android:id="@+id/settings_use_recycle_bin"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:background="@null"
+                android:clickable="false"
+                android:paddingLeft="@dimen/medium_margin"
+                android:paddingStart="@dimen/medium_margin"
+                android:text="@string/move_items_to_trash_bin"/>
+
+        </RelativeLayout>
     </LinearLayout>
 </ScrollView>