Merge pull request #651 from yparitcher/history

refresh sms history based on oldest sms loaded, ignoring mms

app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/ThreadActivity.kt

@@ -520,7 +520,8 @@ class ThreadActivity : SimpleActivity() {
             return
         }
 
-        val dateOfFirstItem = messages.first().date
+        val firstItem = messages.first()
+        val dateOfFirstItem = firstItem.date
         if (oldestMessageDate == dateOfFirstItem) {
             allMessagesFetched = true
             return
@@ -530,12 +531,11 @@ class ThreadActivity : SimpleActivity() {
         loadingOlderMessages = true
 
         ensureBackgroundThread {
-            val firstItem = messages.first()
             val olderMessages = getMessages(threadId, true, oldestMessageDate)
                 .filter { message -> !messages.contains(message) }
 
             messages.addAll(0, olderMessages)
-            allMessagesFetched = olderMessages.size < MESSAGES_LIMIT || olderMessages.isEmpty()
+            allMessagesFetched = olderMessages.isEmpty()
             threadItems = getThreadItems()
 
             runOnUiThread {

app/src/main/kotlin/com/simplemobiletools/smsmessenger/extensions/Context.kt

@@ -135,6 +135,7 @@ fun Context.getMessages(
         .filter { it.participants.isNotEmpty() }
         .filterNot { it.isScheduled && it.millis() < System.currentTimeMillis() }
         .sortedWith(compareBy<Message> { it.date }.thenBy { it.id })
+        .takeLast(limit)
         .toMutableList() as ArrayList<Message>
 
     return messages