diff --git a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/viewmodel/MainViewModel.kt b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/viewmodel/MainViewModel.kt
index f807970e..50076246 100644
--- a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/viewmodel/MainViewModel.kt
+++ b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/viewmodel/MainViewModel.kt
@@ -43,7 +43,7 @@ class MainViewModel(application: Application) : AndroidViewModel(application) {
     var subscriptionId: String = MmkvManager.settingsStorage.decodeString(AppConfig.CACHE_SUBSCRIPTION_ID, "").orEmpty()
 
     //var keywordFilter: String = MmkvManager.settingsStorage.decodeString(AppConfig.CACHE_KEYWORD_FILTER, "")?:""
-    var keywordFilter = ""
+    var  keywordFilter = ""
     val serversCache = mutableListOf<ServersCache>()
     val isRunning by lazy { MutableLiveData<Boolean>() }
     val updateListAction by lazy { MutableLiveData<Int>() }
@@ -153,7 +153,7 @@ class MainViewModel(application: Application) : AndroidViewModel(application) {
     }
 
     fun updateConfigViaSubAll(): Int {
-        if (subscriptionId.isNullOrEmpty()) {
+        if (subscriptionId.isEmpty()) {
             return AngConfigManager.updateConfigViaSubAll()
         } else {
             val subItem = MmkvManager.decodeSubscription(subscriptionId) ?: return 0
@@ -163,7 +163,7 @@ class MainViewModel(application: Application) : AndroidViewModel(application) {
 
     fun exportAllServer(): Int {
         val serverListCopy =
-            if (subscriptionId.isNullOrEmpty() && keywordFilter.isNullOrEmpty()) {
+            if (subscriptionId.isEmpty() && keywordFilter.isNullOrEmpty()) {
                 serverList
             } else {
                 serversCache.map { it.guid }.toList()
@@ -281,7 +281,7 @@ class MainViewModel(application: Application) : AndroidViewModel(application) {
     }
 
     fun removeAllServer() {
-        if (subscriptionId.isNullOrEmpty() && keywordFilter.isNullOrEmpty()) {
+        if (subscriptionId.isEmpty() && keywordFilter.isNullOrEmpty()) {
             MmkvManager.removeAllServer()
         } else {
             val serversCopy = serversCache.toList()
@@ -292,7 +292,7 @@ class MainViewModel(application: Application) : AndroidViewModel(application) {
     }
 
     fun removeInvalidServer() {
-        if (subscriptionId.isNullOrEmpty() && keywordFilter.isNullOrEmpty()) {
+        if (subscriptionId.isEmpty() && keywordFilter.isNullOrEmpty()) {
             MmkvManager.removeInvalidServer("")
         } else {
             val serversCopy = serversCache.toList()
@@ -394,4 +394,4 @@ class MainViewModel(application: Application) : AndroidViewModel(application) {
             }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/V2rayNG/app/src/main/res/values/attrs.xml b/V2rayNG/app/src/main/res/values/attrs.xml
index 0df1370f..52069cfb 100644
--- a/V2rayNG/app/src/main/res/values/attrs.xml
+++ b/V2rayNG/app/src/main/res/values/attrs.xml
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-
     <style name="TabLayoutTextStyle" parent="TextAppearance.Design.Tab">
         <item name="textAllCaps">false</item>
     </style>