Merge branch 'master' into opt/all_transaction

Author: crossle

app/src/main/java/one/mixin/android/ui/home/ConversationListFragment.kt

@@ -177,7 +177,14 @@ class ConversationListFragment : LinkFragment() {
     private var enterJob: Job? = null
 
     companion object {
-        fun newInstance() = ConversationListFragment()
+        @Volatile
+        private var INSTANCE: ConversationListFragment? = null
+
+        fun getInstance(): ConversationListFragment {
+            return INSTANCE ?: synchronized(this) {
+                INSTANCE ?: ConversationListFragment().also { INSTANCE = it }
+            }
+        }
 
         const val TAG = "ConversationListFragment"
 

app/src/main/java/one/mixin/android/ui/home/MainActivity.kt

@@ -983,7 +983,7 @@ class MainActivity : BlazeBaseActivity() {
     }
 
     private val conversationListFragment by lazy {
-        ConversationListFragment()
+        ConversationListFragment.getInstance()
     }
 
     private val walletFragment by lazy {