diff --git a/app/src/main/java/io/github/chipppppppppp/lime/hooks/KeepUnread.java b/app/src/main/java/io/github/chipppppppppp/lime/hooks/KeepUnread.java
index 1c094ef3..c5b540ed 100644
--- a/app/src/main/java/io/github/chipppppppppp/lime/hooks/KeepUnread.java
+++ b/app/src/main/java/io/github/chipppppppppp/lime/hooks/KeepUnread.java
@@ -1,7 +1,7 @@
 package io.github.chipppppppppp.lime.hooks;
 
 import android.content.Context;
-import android.content.SharedPreferences;
+
 import android.graphics.Color;
 import android.graphics.drawable.GradientDrawable;
 import android.view.View;
@@ -11,6 +11,10 @@
 import android.widget.Switch;
 import android.widget.TextView;
 
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
 import de.robv.android.xposed.XC_MethodHook;
 import de.robv.android.xposed.XposedBridge;
 import de.robv.android.xposed.XposedHelpers;
@@ -32,12 +36,13 @@ public void hook(LimeOptions limeOptions, XC_LoadPackage.LoadPackageParam loadPa
                     protected void afterHookedMethod(MethodHookParam param) throws Throwable {
                         ViewGroup viewGroup = (ViewGroup) param.thisObject;
                         Context context = viewGroup.getContext();
-
-                        SharedPreferences prefs = context.getSharedPreferences(Constants.MODULE_NAME + "-options", Context.MODE_PRIVATE);
+                        context.getApplicationContext().createPackageContext(Constants.MODULE_NAME, Context.CONTEXT_IGNORE_SECURITY);
 
                         Context moduleContext = context.getApplicationContext().createPackageContext(Constants.MODULE_NAME, Context.CONTEXT_IGNORE_SECURITY);
                         String textKeepUnread = moduleContext.getResources().getString(R.string.switch_keep_unread);
 
+                        keepUnread = readStateFromFile(context);
+
                         RelativeLayout container = new RelativeLayout(context);
                         RelativeLayout.LayoutParams containerParams = new RelativeLayout.LayoutParams(
                                 RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
@@ -47,7 +52,6 @@ protected void afterHookedMethod(MethodHookParam param) throws Throwable {
                         background.setShape(GradientDrawable.RECTANGLE);
                         background.setColor(Color.parseColor("#06C755"));
                         background.setCornerRadii(new float[]{100, 100, 80, 30, 100, 100, 80, 30});
-
                         container.setBackground(background);
 
                         TextView label = new TextView(context);
@@ -66,11 +70,10 @@ protected void afterHookedMethod(MethodHookParam param) throws Throwable {
                                 RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
                         switchParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
                         switchParams.setMargins(0, 0, 40, 0);
-                        keepUnread = prefs.getBoolean("keep_unread", false);
                         switchView.setChecked(keepUnread);
                         switchView.setOnCheckedChangeListener((buttonView, isChecked) -> {
                             keepUnread = isChecked;
-                            prefs.edit().putBoolean("keep_unread", isChecked).apply();
+                            saveStateToFile(context, isChecked);
                         });
 
                         container.addView(switchView, switchParams);
@@ -79,7 +82,6 @@ protected void afterHookedMethod(MethodHookParam param) throws Throwable {
                     }
                 }
         );
-
         XposedHelpers.findAndHookMethod(
                 loadPackageParam.classLoader.loadClass(Constants.MARK_AS_READ_HOOK.className),
                 Constants.MARK_AS_READ_HOOK.methodName,
@@ -93,4 +95,26 @@ protected void beforeHookedMethod(MethodHookParam param) throws Throwable {
                 }
         );
     }
+    private void saveStateToFile(Context context, boolean state) {
+        String filename = "keep_unread_state.txt";
+        try (FileOutputStream fos = context.openFileOutput(filename, Context.MODE_PRIVATE)) {
+            fos.write((state ? "1" : "0").getBytes());
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+    private boolean readStateFromFile(Context context) {
+        String filename = "keep_unread_state.txt";
+        try (FileInputStream fis = context.openFileInput(filename)) {
+            int c;
+            StringBuilder sb = new StringBuilder();
+            while ((c = fis.read()) != -1) {
+                sb.append((char) c);
+            }
+            return "1".equals(sb.toString());
+        } catch (IOException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
 }