fix:去除集合长度判断，修复没会话UI界面显示开始对话Text

app/src/main/kotlin/com/secspace/sms/activities/MainActivity.kt

@@ -413,7 +413,7 @@ class MainActivity : SimpleActivity() {
 //            Log.e(TAG, " getNewConversations  privateContacts:${GsonUtil.parseListToJson(privateContacts)}")
         //获取系统SMS DB短信列表
         val conversations: java.util.ArrayList<Conversation> = getConversations(privateContacts = privateContacts)
-//            Log.e(TAG, " getNewConversations  获取系统SMS DB短信列表(脏数据) conversations:${GsonUtil.parseListToJson(conversations)}")
+            Log.e(TAG, " getNewConversations  获取系统SMS DB短信列表(脏数据) conversations:${GsonUtil.parseListToJson(conversations)}")
 
         //通过DB数据与cache对比threadID
         conversations.forEach { clonedConversation ->
@@ -503,7 +503,7 @@ class MainActivity : SimpleActivity() {
      */
     private fun setFirstConversationAndUpdateData(sortedConversations: ArrayList<Conversation>) {
         val hasPerMissionResult = this@MainActivity.hasPermission(PERMISSION_READ_CALL_LOG)
-        if (hasPerMissionResult) {
+        if (hasPerMissionResult && sortedConversations.isNotEmpty()) {
             val firstConversation = sortedConversations.first()//获取第一条未掩码会话
             Log.d(TAG, " MainActivity firstConversation()  获取第一条会话  =: ${GsonUtil.parseBeanToJson(firstConversation)}")
 
@@ -541,7 +541,6 @@ class MainActivity : SimpleActivity() {
     }
 
     private fun setupConversations(conversations: ArrayList<Conversation>, cached: Boolean = false) {
-        if (conversations.size == 0) return
 
         val sortedConversations = conversations.sortedWith(
             compareByDescending<Conversation> { config.pinnedConversations.contains(it.threadId.toString()) }