diff --git a/CloudKey/app/src/main/java/com/thankvinci/CloudKey/Fragment/FileManageFragment.java b/CloudKey/app/src/main/java/com/thankvinci/CloudKey/Fragment/FileManageFragment.java
index bd35de0..6bad4c7 100644
--- a/CloudKey/app/src/main/java/com/thankvinci/CloudKey/Fragment/FileManageFragment.java
+++ b/CloudKey/app/src/main/java/com/thankvinci/CloudKey/Fragment/FileManageFragment.java
@@ -1,9 +1,14 @@
 package com.thankvinci.CloudKey.Fragment;
 
+import android.app.ActionBar;
+import android.content.Intent;
 import android.os.Bundle;
 import android.os.Environment;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.EditText;
@@ -44,10 +49,31 @@ public class FileManageFragment extends Fragment {
     public FileManageFragment(){
         super(R.layout.filemanage_fragment);
     }
-
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        // TODO Auto-generated method stub
+        super.onCreateOptionsMenu(menu, inflater);
+        inflater.inflate(R.menu.fm_menu, menu);
+    }
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        // TODO Auto-generated method stub
+        switch (item.getItemId()) {
+            case R.id.flush:
+                loadDirectory();
+                break;
+            default:
+                break;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+    @Override
+    public void onRestart(Bundle ){}
     @Override
     public void onViewCreated(View view,Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
+        setHasOptionsMenu(true); //使fragment支持menu
+
         path_edit = getView().findViewById(R.id.path_name);
         directoryView = (RecyclerView)getView().findViewById(R.id.dir_list);
 
diff --git a/CloudKey/app/src/main/res/layout/activity_main.xml b/CloudKey/app/src/main/res/layout/activity_main.xml
index 01ca0c6..9695c37 100644
--- a/CloudKey/app/src/main/res/layout/activity_main.xml
+++ b/CloudKey/app/src/main/res/layout/activity_main.xml
@@ -6,18 +6,20 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     tools:context=".MainActivity">
+
     <androidx.fragment.app.FragmentContainerView
         android:id="@+id/nav_host_fragment"
         android:name="androidx.navigation.fragment.NavHostFragment"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         app:defaultNavHost="true"
-        app:navGraph="@navigation/nav_graph"/>
+        app:navGraph="@navigation/nav_graph" />
+
     <com.google.android.material.navigation.NavigationView
         android:id="@+id/nav_view"
         android:layout_width="wrap_content"
         android:layout_height="match_parent"
         android:layout_gravity="start"
         android:fitsSystemWindows="true"
-        app:menu="@menu/nav_menu"/>
+        app:menu="@menu/nav_menu" />
 </androidx.drawerlayout.widget.DrawerLayout>
\ No newline at end of file
diff --git a/CloudKey/app/src/main/res/menu/fm_menu.xml b/CloudKey/app/src/main/res/menu/fm_menu.xml
new file mode 100644
index 0000000..6bd4c97
--- /dev/null
+++ b/CloudKey/app/src/main/res/menu/fm_menu.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@+id/flush" android:title="刷新">刷新</item>
+</menu>
\ No newline at end of file
diff --git a/开发历程.md b/开发历程.md
index 48f60d6..826c928 100644
--- a/开发历程.md
+++ b/开发历程.md
@@ -325,4 +325,8 @@ FileHandler负责将获取到的md5码发到NetThread,然后将得到的密码
 
 改了一下原先的文件名排序,之前的文件名排序的返回值有问题导致文件排序一直是乱的
 
-实现解压后刷新布局
\ No newline at end of file
+实现解压后刷新布局
+
+**2021/6/13**
+
+给fmfragment添加菜单项用于刷新当前的页面,和从其他应用返回时刷新布局
\ No newline at end of file