Fetch drafts on a background thread

app/src/main/kotlin/com/simplemobiletools/smsmessenger/adapters/ConversationsAdapter.kt

@@ -40,7 +40,9 @@ class ConversationsAdapter(
 
     init {
         setupDragListener(true)
+        ensureBackgroundThread {
             fetchDrafts(drafts)
+        }
         setHasStableIds(true)
 
         registerAdapterDataObserver(object : RecyclerView.AdapterDataObserver() {
@@ -314,13 +316,17 @@ class ConversationsAdapter(
     }
 
     fun updateDrafts() {
+        ensureBackgroundThread {
             val newDrafts = HashMap<Long, String?>()
             fetchDrafts(newDrafts)
             if (drafts.hashCode() != newDrafts.hashCode()) {
                 drafts = newDrafts
+                activity.runOnUiThread {
                     notifyDataSetChanged()
                 }
             }
+        }
+    }
 
     private fun setupView(view: View, conversation: Conversation) {
         view.apply {