diff --git a/app/src/main/java/fr/ralala/hexviewer/ApplicationCtx.java b/app/src/main/java/fr/ralala/hexviewer/ApplicationCtx.java
index 49a2002..ef8af97 100644
--- a/app/src/main/java/fr/ralala/hexviewer/ApplicationCtx.java
+++ b/app/src/main/java/fr/ralala/hexviewer/ApplicationCtx.java
@@ -61,6 +61,7 @@ public class ApplicationCtx extends Application {
   private boolean mSequential = false;
   private String mDefaultMemoryThreshold;
   private boolean mDefaultPartialOpenButWholeFileIsOpened;
+  private Configuration mConfiguration = null;
 
   @Override
   public void onCreate() {
@@ -153,6 +154,16 @@ public void onCreate() {
     setApplicationLanguage(mLanguage);
   }
 
+  public void setConfiguration(Configuration cfg) {
+    mConfiguration = cfg;
+  }
+
+  public Configuration getConfiguration() {
+    if (mConfiguration == null)
+      mConfiguration = getResources().getConfiguration();
+    return mConfiguration;
+  }
+
   public Queue<String> getLogBuffer() {
     if (mLogs == null)
       mLogs = new CircularFifoQueue<>(CIRCULAR_BUFFER_DEPTH);
diff --git a/app/src/main/java/fr/ralala/hexviewer/ui/activities/AbstractBaseMainActivity.java b/app/src/main/java/fr/ralala/hexviewer/ui/activities/AbstractBaseMainActivity.java
index 7aacd71..b827163 100644
--- a/app/src/main/java/fr/ralala/hexviewer/ui/activities/AbstractBaseMainActivity.java
+++ b/app/src/main/java/fr/ralala/hexviewer/ui/activities/AbstractBaseMainActivity.java
@@ -4,6 +4,7 @@
 import android.app.SearchManager;
 import android.content.Context;
 import android.content.pm.PackageManager;
+import android.content.res.Configuration;
 import android.os.Build;
 import android.os.Bundle;
 import android.text.InputType;
@@ -12,6 +13,7 @@
 import android.widget.SearchView;
 
 import androidx.activity.OnBackPressedCallback;
+import androidx.annotation.NonNull;
 import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.app.ActivityCompat;
@@ -84,7 +86,7 @@ protected void onCreate(final Bundle savedInstanceState) {
         Manifest.permission.WRITE_EXTERNAL_STORAGE,
         Manifest.permission.READ_EXTERNAL_STORAGE
       }, 1);
-    
+
     getOnBackPressedDispatcher().addCallback(this, new OnBackPressedCallback(true) {
       @Override
       public void handleOnBackPressed() {
@@ -93,6 +95,17 @@ public void handleOnBackPressed() {
     });
   }
 
+  /**
+   * Called by the system when the device configuration changes while your activity is running.
+   *
+   * @param newConfig The new device configuration. This value cannot be null.
+   */
+  @Override
+  public void onConfigurationChanged(@NonNull Configuration newConfig) {
+    super.onConfigurationChanged(newConfig);
+    mApp.setConfiguration(newConfig);
+  }
+
   protected void setSearchView(MenuItem si) {
     // Searchable configuration
     SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
diff --git a/app/src/main/java/fr/ralala/hexviewer/ui/activities/LineUpdateActivity.java b/app/src/main/java/fr/ralala/hexviewer/ui/activities/LineUpdateActivity.java
index 2f8152d..36090b8 100644
--- a/app/src/main/java/fr/ralala/hexviewer/ui/activities/LineUpdateActivity.java
+++ b/app/src/main/java/fr/ralala/hexviewer/ui/activities/LineUpdateActivity.java
@@ -128,7 +128,8 @@ protected void onCreate(final Bundle savedInstanceState) {
 
     mEtInputHex = findViewById(R.id.etInputHex);
     mTilInputHex = findViewById(R.id.tilInputHex);
-    if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) {
+    Configuration cfg = mApp.getConfiguration();
+    if (cfg.orientation == Configuration.ORIENTATION_LANDSCAPE) {
       mEtInputHex.setTextSize(mApp.getListSettingsLineEditLandscape().getFontSize());
     } else {
       mEtInputHex.setTextSize(mApp.getListSettingsLineEditPortrait().getFontSize());
@@ -233,6 +234,7 @@ public void onDestroy() {
   @Override
   public void onConfigurationChanged(@NonNull Configuration newConfig) {
     super.onConfigurationChanged(newConfig);
+    mApp.setConfiguration(newConfig);
     mAdapterSource.notifyDataSetChanged();
     mAdapterResult.notifyDataSetChanged();
     // Checks the orientation of the screen
diff --git a/app/src/main/java/fr/ralala/hexviewer/ui/activities/LogsActivity.java b/app/src/main/java/fr/ralala/hexviewer/ui/activities/LogsActivity.java
index 8111317..6432023 100644
--- a/app/src/main/java/fr/ralala/hexviewer/ui/activities/LogsActivity.java
+++ b/app/src/main/java/fr/ralala/hexviewer/ui/activities/LogsActivity.java
@@ -2,12 +2,14 @@
 
 import android.content.Context;
 import android.content.Intent;
+import android.content.res.Configuration;
 import android.os.Bundle;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 
+import androidx.annotation.NonNull;
 import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.AppCompatActivity;
 
@@ -37,6 +39,7 @@ public class LogsActivity extends AppCompatActivity {
   private CircularFifoQueue<String> mCfq = null;
   private String mContent = null;
   private ListView mLogs = null;
+  private ApplicationCtx mApp = null;
 
   /**
    * Starts an activity.
@@ -55,7 +58,7 @@ public static void startActivity(final Context c) {
   public void onCreate(final Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_logs);
-    ApplicationCtx app = (ApplicationCtx) getApplicationContext();
+    mApp = (ApplicationCtx) getApplicationContext();
 
     ActionBar actionBar = getSupportActionBar();
     if (actionBar != null) {
@@ -65,7 +68,7 @@ public void onCreate(final Bundle savedInstanceState) {
 
     mLogs = findViewById(R.id.logs);
 
-    mCfq = (CircularFifoQueue<String>) app.getLogBuffer();
+    mCfq = (CircularFifoQueue<String>) mApp.getLogBuffer();
     final String[] lines = mCfq.toArray(new String[]{});
     final StringBuilder sb = new StringBuilder();
     for (final String s : lines)
@@ -76,6 +79,17 @@ public void onCreate(final Bundle savedInstanceState) {
       R.layout.listview_simple_row, R.id.label1, lines));
   }
 
+  /**
+   * Detects the configuration changed.
+   *
+   * @param newConfig The new device configuration.
+   */
+  @Override
+  public void onConfigurationChanged(@NonNull Configuration newConfig) {
+    super.onConfigurationChanged(newConfig);
+    mApp.setConfiguration(newConfig);
+  }
+
   /**
    * Called when the options menu is created.
    *
diff --git a/app/src/main/java/fr/ralala/hexviewer/ui/activities/MainActivity.java b/app/src/main/java/fr/ralala/hexviewer/ui/activities/MainActivity.java
index 1d37ba7..c6d10c8 100644
--- a/app/src/main/java/fr/ralala/hexviewer/ui/activities/MainActivity.java
+++ b/app/src/main/java/fr/ralala/hexviewer/ui/activities/MainActivity.java
@@ -82,6 +82,7 @@ protected void onCreate(final Bundle savedInstanceState) {
     ApplicationCtx.addLog(this, "Main", "Application started with language: '" +
       ((ApplicationCtx) getApplicationContext()).getApplicationLanguage(this) + "'");
 
+    mApp.setConfiguration(getResources().getConfiguration());
     mUnDoRedo = new UnDoRedo(this);
 
     mPopup = new MainPopupWindow(this, mUnDoRedo, this::onPopupItemClick);
@@ -311,6 +312,7 @@ public void refreshTitle() {
   @Override
   public void onConfigurationChanged(@NonNull Configuration newConfig) {
     super.onConfigurationChanged(newConfig);
+    mApp.setConfiguration(newConfig);
     if (mPayloadPlainSwipe.isVisible()) {
       mPayloadPlainSwipe.refresh();
     } else if (mPayloadHexHelper.isVisible())
diff --git a/app/src/main/java/fr/ralala/hexviewer/ui/activities/PartialOpenActivity.java b/app/src/main/java/fr/ralala/hexviewer/ui/activities/PartialOpenActivity.java
index f69ccb4..710b022 100644
--- a/app/src/main/java/fr/ralala/hexviewer/ui/activities/PartialOpenActivity.java
+++ b/app/src/main/java/fr/ralala/hexviewer/ui/activities/PartialOpenActivity.java
@@ -2,6 +2,7 @@
 
 import android.content.Context;
 import android.content.Intent;
+import android.content.res.Configuration;
 import android.graphics.Typeface;
 import android.os.Bundle;
 import android.text.Editable;
@@ -20,6 +21,7 @@
 import android.widget.TextView;
 
 import androidx.activity.result.ActivityResultLauncher;
+import androidx.annotation.NonNull;
 import androidx.annotation.StringRes;
 import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.AppCompatActivity;
@@ -236,6 +238,17 @@ protected void onCreate(final Bundle savedInstanceState) {
     evaluateSize();
   }
 
+  /**
+   * Called by the system when the device configuration changes while your activity is running.
+   *
+   * @param newConfig The new device configuration. This value cannot be null.
+   */
+  @Override
+  public void onConfigurationChanged(@NonNull Configuration newConfig) {
+    super.onConfigurationChanged(newConfig);
+    ((ApplicationCtx) getApplicationContext()).setConfiguration(newConfig);
+  }
+
   /**
    * Called when the options menu is clicked.
    *
diff --git a/app/src/main/java/fr/ralala/hexviewer/ui/activities/RecentlyOpenActivity.java b/app/src/main/java/fr/ralala/hexviewer/ui/activities/RecentlyOpenActivity.java
index b5775d7..28ca38a 100644
--- a/app/src/main/java/fr/ralala/hexviewer/ui/activities/RecentlyOpenActivity.java
+++ b/app/src/main/java/fr/ralala/hexviewer/ui/activities/RecentlyOpenActivity.java
@@ -2,6 +2,7 @@
 
 import android.content.Context;
 import android.content.Intent;
+import android.content.res.Configuration;
 import android.os.Bundle;
 import android.view.MenuItem;
 
@@ -100,6 +101,17 @@ protected void onCreate(final Bundle savedInstanceState) {
     setTitle(getString(R.string.action_recently_open_title));
   }
 
+  /**
+   * Called by the system when the device configuration changes while your activity is running.
+   *
+   * @param newConfig The new device configuration. This value cannot be null.
+   */
+  @Override
+  public void onConfigurationChanged(@NonNull Configuration newConfig) {
+    super.onConfigurationChanged(newConfig);
+    mApp.setConfiguration(newConfig);
+  }
+
   /**
    * Called when the options item is clicked (home).
    *
diff --git a/app/src/main/java/fr/ralala/hexviewer/ui/adapters/HexTextArrayAdapter.java b/app/src/main/java/fr/ralala/hexviewer/ui/adapters/HexTextArrayAdapter.java
index b1e69af..d86d157 100644
--- a/app/src/main/java/fr/ralala/hexviewer/ui/adapters/HexTextArrayAdapter.java
+++ b/app/src/main/java/fr/ralala/hexviewer/ui/adapters/HexTextArrayAdapter.java
@@ -113,7 +113,7 @@ private void applyUpdated(final TextView tv, final LineEntry fd) {
    */
   protected String getTextAccordingToUserConfig(final String text) {
     String txt;
-    Configuration cfg = getContext().getResources().getConfiguration();
+    Configuration cfg = mApp.getConfiguration();
     if (mUserConfigLandscape != null && cfg.orientation == Configuration.ORIENTATION_LANDSCAPE && mUserConfigLandscape.isDataColumnNotDisplayed())
       txt = text.substring(0, mApp.getNbBytesPerLine() == SysHelper.MAX_BY_ROW_16 ? SysHelper.MAX_BYTES_ROW_16 : SysHelper.MAX_BYTES_ROW_8);
     else if (mUserConfigPortrait != null && cfg.orientation == Configuration.ORIENTATION_PORTRAIT && mUserConfigPortrait.isDataColumnNotDisplayed())
diff --git a/app/src/main/java/fr/ralala/hexviewer/ui/adapters/LineUpdateHexArrayAdapter.java b/app/src/main/java/fr/ralala/hexviewer/ui/adapters/LineUpdateHexArrayAdapter.java
index 7c09908..ca73107 100644
--- a/app/src/main/java/fr/ralala/hexviewer/ui/adapters/LineUpdateHexArrayAdapter.java
+++ b/app/src/main/java/fr/ralala/hexviewer/ui/adapters/LineUpdateHexArrayAdapter.java
@@ -200,7 +200,7 @@ View inflateView(final View convertView) {
    * @param tv TextView
    */
   private void applyUserConfig(final TextView tv) {
-    Configuration cfg = getContext().getResources().getConfiguration();
+    Configuration cfg = mApp.getConfiguration();
     ListSettings landscape = mApp.getListSettingsLineEditLandscape();
     ListSettings portrait = mApp.getListSettingsLineEditPortrait();
     if (landscape != null && cfg.orientation == Configuration.ORIENTATION_LANDSCAPE) {
diff --git a/app/src/main/java/fr/ralala/hexviewer/ui/adapters/SearchableListArrayAdapter.java b/app/src/main/java/fr/ralala/hexviewer/ui/adapters/SearchableListArrayAdapter.java
index 050df57..dc33fe5 100644
--- a/app/src/main/java/fr/ralala/hexviewer/ui/adapters/SearchableListArrayAdapter.java
+++ b/app/src/main/java/fr/ralala/hexviewer/ui/adapters/SearchableListArrayAdapter.java
@@ -17,6 +17,7 @@
 import java.util.List;
 import java.util.Set;
 
+import fr.ralala.hexviewer.ApplicationCtx;
 import fr.ralala.hexviewer.models.LineEntries;
 import fr.ralala.hexviewer.models.LineEntry;
 import fr.ralala.hexviewer.ui.adapters.config.UserConfig;
@@ -208,7 +209,7 @@ public void addAll(@NonNull Collection<? extends LineEntry> collection) {
    * @param tv TextView
    */
   protected void applyUserConfig(final TextView tv) {
-    Configuration cfg = getContext().getResources().getConfiguration();
+    Configuration cfg = ((ApplicationCtx) getContext().getApplicationContext()).getConfiguration();
     if (mUserConfigLandscape != null && cfg.orientation == Configuration.ORIENTATION_LANDSCAPE) {
       tv.setTextSize(mUserConfigLandscape.getFontSize());
       ViewGroup.LayoutParams lp = tv.getLayoutParams();
diff --git a/app/src/main/java/fr/ralala/hexviewer/ui/utils/UIHelper.java b/app/src/main/java/fr/ralala/hexviewer/ui/utils/UIHelper.java
index e86aded..999d6c4 100644
--- a/app/src/main/java/fr/ralala/hexviewer/ui/utils/UIHelper.java
+++ b/app/src/main/java/fr/ralala/hexviewer/ui/utils/UIHelper.java
@@ -32,6 +32,7 @@
 import com.google.android.material.snackbar.Snackbar;
 import com.google.android.material.textfield.TextInputLayout;
 
+import fr.ralala.hexviewer.ApplicationCtx;
 import fr.ralala.hexviewer.R;
 import fr.ralala.hexviewer.models.FileData;
 import fr.ralala.hexviewer.ui.adapters.config.UserConfig;
@@ -147,7 +148,8 @@ public static int getTextWidth(final Context context, final UserConfig landscape
     TextView tv = new TextView(context);
     tv.setText(text);
     tv.setTypeface(monospace);
-    Configuration cfg = context.getResources().getConfiguration();
+    ApplicationCtx app = (ApplicationCtx) context.getApplicationContext();
+    Configuration cfg = app.getConfiguration();
     if (landscape != null && cfg.orientation == Configuration.ORIENTATION_LANDSCAPE) {
       fontSize = landscape.getFontSize();
     } else if (portrait != null) {
diff --git a/app/src/main/java/fr/ralala/hexviewer/utils/SysHelper.java b/app/src/main/java/fr/ralala/hexviewer/utils/SysHelper.java
index 8d872fc..819a13e 100644
--- a/app/src/main/java/fr/ralala/hexviewer/utils/SysHelper.java
+++ b/app/src/main/java/fr/ralala/hexviewer/utils/SysHelper.java
@@ -17,6 +17,7 @@
 import java.util.Map;
 import java.util.concurrent.atomic.AtomicBoolean;
 
+import fr.ralala.hexviewer.ApplicationCtx;
 import fr.ralala.hexviewer.R;
 import fr.ralala.hexviewer.models.LineEntry;
 
@@ -68,8 +69,8 @@ public static boolean isRTL(final View view) {
    * @return boolean
    */
   public static boolean isRTL(final Context context) {
-    final Configuration config = context.getResources().getConfiguration();
-    return config.getLayoutDirection() == View.LAYOUT_DIRECTION_RTL;
+    Configuration cfg = ((ApplicationCtx) context.getApplicationContext()).getConfiguration();
+    return cfg.getLayoutDirection() == View.LAYOUT_DIRECTION_RTL;
   }
 
   /**