diff --git a/app/src/main/java/com/pangbai/weblog/activity/MainActivity.java b/app/src/main/java/com/pangbai/weblog/activity/MainActivity.java
index 8c6e86f..4bab7df 100644
--- a/app/src/main/java/com/pangbai/weblog/activity/MainActivity.java
+++ b/app/src/main/java/com/pangbai/weblog/activity/MainActivity.java
@@ -458,8 +458,10 @@ void checkProcess(MenuItem item) {
     @Override
     protected void onDestroy() {
         //binding.editor.setEditorLanguage(null);
-        binding.editor.release();
-        markdown.destroyWebView();
+        if (binding!=null) {
+            binding.editor.release();
+            markdown.destroyWebView();
+        }
         super.onDestroy();
     }
 }