properly handle custom sorting

app/src/main/kotlin/com/simplemobiletools/applauncher/adapters/LaunchersAdapter.kt

@@ -93,9 +93,8 @@ class LaunchersAdapter(activity: SimpleActivity, val launchers: ArrayList<AppLau
     override fun onActionModeCreated() {}
 
     override fun onActionModeDestroyed() {
-        isChangingOrder = false
+        if (isChangingOrder) {
             notifyDataSetChanged()
-
             launchers.forEachIndexed { index, appLauncher ->
                 appLauncher.order = index + 1
             }
@@ -105,6 +104,9 @@ class LaunchersAdapter(activity: SimpleActivity, val launchers: ArrayList<AppLau
             }
         }
 
+        isChangingOrder = false
+    }
+
     private fun changeOrder() {
         isChangingOrder = true
         notifyDataSetChanged()

app/src/main/kotlin/com/simplemobiletools/applauncher/models/AppLauncher.kt

@@ -16,7 +16,17 @@ data class AppLauncher(val id: Int, var title: String, val packageName: String,
     override fun compareTo(other: AppLauncher): Int {
         var result = when {
             sorting and SORT_BY_TITLE != 0 -> title.toLowerCase().compareTo(other.title.toLowerCase())
-            else -> order.compareTo(other.order)
+            else -> {
+                if (order > 0 && other.order == 0) {
+                    -1
+                } else if (order == 0 && other.order > 0) {
+                    1
+                } else if (order > 0 && other.order > 0) {
+                    order.compareTo(other.order)
+                } else {
+                    title.toLowerCase().compareTo(other.title.toLowerCase())
+                }
+            }
         }
 
         if (sorting and SORT_DESCENDING != 0) {