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 48a1bdf5..b1ad88e3 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
@@ -199,7 +199,7 @@ public boolean onCreateOptionsMenu(final Menu menu) {
   private void updateEditEmptyMenu() {
     if (mEditEmptyMenu != null) {
       mEditEmptyMenu.setVisible(!FileData.isEmpty(mFileData) && mPayloadHexHelper.getAdapter().getEntries().getItems().isEmpty());
-      if(mEditEmptyMenu.isVisible()) {
+      if (mEditEmptyMenu.isVisible()) {
         mPayloadHexHelper.getAdapter().displayTitle();
       }
     }
@@ -394,7 +394,7 @@ public void onItemClick(AdapterView<?> parent, View view, int position, long id)
     if (e == null)
       return;
     if (mPayloadPlainSwipe.isVisible()) {
-      UIHelper.toast(this, getString(R.string.error_not_supported_in_plain_text));
+      UIHelper.showErrorDialog(this, R.string.error_title, R.string.error_not_supported_in_plain_text);
       return;
     }
 
@@ -536,7 +536,7 @@ private void popupActionOpen(boolean sequential) {
    */
   private void popupActionSave() {
     if (FileData.isEmpty(mFileData)) {
-      UIHelper.toast(this, getString(R.string.open_a_file_before));
+      UIHelper.showErrorDialog(this, R.string.error_title, getString(R.string.open_a_file_before));
       return;
     }
     new TaskSave(this, this).execute(new TaskSave.Request(mFileData,
@@ -549,7 +549,7 @@ private void popupActionSave() {
    */
   private void popupActionSaveAs() {
     if (FileData.isEmpty(mFileData)) {
-      UIHelper.toast(this, getString(R.string.open_a_file_before));
+      UIHelper.showErrorDialog(this, R.string.error_title, getString(R.string.open_a_file_before));
       return;
     }
     mLauncherSave.startActivity();
diff --git a/app/src/main/java/fr/ralala/hexviewer/ui/launchers/LauncherOpen.java b/app/src/main/java/fr/ralala/hexviewer/ui/launchers/LauncherOpen.java
index 3ccf3e6e..b0f9bef2 100644
--- a/app/src/main/java/fr/ralala/hexviewer/ui/launchers/LauncherOpen.java
+++ b/app/src/main/java/fr/ralala/hexviewer/ui/launchers/LauncherOpen.java
@@ -7,6 +7,7 @@
 
 import androidx.activity.result.ActivityResultLauncher;
 import androidx.activity.result.contract.ActivityResultContracts;
+
 import fr.ralala.hexviewer.ApplicationCtx;
 import fr.ralala.hexviewer.R;
 import fr.ralala.hexviewer.models.FileData;
@@ -35,7 +36,7 @@ public class LauncherOpen {
 
   public LauncherOpen(MainActivity activity, LinearLayout mainLayout) {
     mActivity = activity;
-    mApp = (ApplicationCtx)activity.getApplicationContext();
+    mApp = (ApplicationCtx) activity.getApplicationContext();
     mMainLayout = mainLayout;
     register();
   }
@@ -60,7 +61,7 @@ private void register() {
               if (FileHelper.takeUriPermissions(mActivity, data.getData(), false)) {
                 processFileOpen(new FileData(mActivity, data.getData(), false, 0L, 0L));
               } else
-                UIHelper.toast(mActivity, String.format(mActivity.getString(R.string.error_file_permission), FileHelper.getFileName(mApp, data.getData())));
+                UIHelper.showErrorDialog(mActivity, R.string.error_title, String.format(mActivity.getString(R.string.error_file_permission), FileHelper.getFileName(mApp, data.getData())));
             } else {
               Log.e(getClass().getSimpleName(), "Null data!!!");
               mApp.setSequential(false);
@@ -96,7 +97,7 @@ public void processFileOpen(final FileData fd, final String oldToString, final b
       else
         r.run();
     } else {
-      UIHelper.toast(mActivity, mActivity.getString(R.string.error_filename));
+      UIHelper.showErrorDialog(mActivity, R.string.error_title, mActivity.getString(R.string.error_filename));
     }
   }
 }
diff --git a/app/src/main/java/fr/ralala/hexviewer/ui/launchers/LauncherRecentlyOpen.java b/app/src/main/java/fr/ralala/hexviewer/ui/launchers/LauncherRecentlyOpen.java
index 21d6b566..3fa33b88 100644
--- a/app/src/main/java/fr/ralala/hexviewer/ui/launchers/LauncherRecentlyOpen.java
+++ b/app/src/main/java/fr/ralala/hexviewer/ui/launchers/LauncherRecentlyOpen.java
@@ -34,7 +34,7 @@ public class LauncherRecentlyOpen {
   private ActivityResultLauncher<Intent> activityResultLauncherRecentlyOpen;
 
   public LauncherRecentlyOpen(MainActivity activity) {
-    mApp = (ApplicationCtx)activity.getApplicationContext();
+    mApp = (ApplicationCtx) activity.getApplicationContext();
     mActivity = activity;
     register();
   }
@@ -52,14 +52,14 @@ private void processIntentData(Intent data) {
     long endOffset = data.getLongExtra(RecentlyOpenActivity.RESULT_END_OFFSET, 0L);
     final FileData fd = new FileData(mActivity, uri, false, startOffset, endOffset);
     final String oldToString;
-    if(data.hasExtra(RecentlyOpenActivity.RESULT_OLD_TO_STRING))
+    if (data.hasExtra(RecentlyOpenActivity.RESULT_OLD_TO_STRING))
       oldToString = data.getStringExtra(RecentlyOpenActivity.RESULT_OLD_TO_STRING);
     else
       oldToString = null;
     if (FileHelper.isFileExists(mActivity.getContentResolver(), uri)) {
       processFile(fd, uri, oldToString);
     } else {
-      UIHelper.toast(mActivity, String.format(mActivity.getString(R.string.error_file_not_found), FileHelper.getFileName(mApp, uri)));
+      UIHelper.showErrorDialog(mActivity, R.string.error_title, String.format(mActivity.getString(R.string.error_file_not_found), FileHelper.getFileName(mApp, uri)));
       mApp.getRecentlyOpened().remove(fd);
       FileHelper.releaseUriPermissions(mActivity, uri);
     }
@@ -68,7 +68,7 @@ private void processIntentData(Intent data) {
   private void processFile(final FileData fd, final Uri uri, final String oldToString) {
     if (FileHelper.hasUriPermission(mActivity, uri, true)) {
       final Runnable r = () -> {
-        if(fd.getEndOffset() > fd.getRealSize())
+        if (fd.getEndOffset() > fd.getRealSize())
           mApp.setSequential(true);
         mActivity.getLauncherOpen().processFileOpen(fd, oldToString, true);
       };
@@ -78,7 +78,7 @@ private void processFile(final FileData fd, final Uri uri, final String oldToStr
       } else
         r.run();
     } else {
-      UIHelper.toast(mActivity, String.format(mActivity.getString(R.string.error_file_permission), FileHelper.getFileName(mApp, uri)));
+      UIHelper.showErrorDialog(mActivity, R.string.error_title, String.format(mActivity.getString(R.string.error_file_permission), FileHelper.getFileName(mApp, uri)));
       mApp.getRecentlyOpened().remove(fd);
     }
   }
diff --git a/app/src/main/java/fr/ralala/hexviewer/ui/launchers/LauncherSave.java b/app/src/main/java/fr/ralala/hexviewer/ui/launchers/LauncherSave.java
index 219e8fb1..6f1abb6a 100644
--- a/app/src/main/java/fr/ralala/hexviewer/ui/launchers/LauncherSave.java
+++ b/app/src/main/java/fr/ralala/hexviewer/ui/launchers/LauncherSave.java
@@ -96,7 +96,8 @@ private void processFileSaveWithDialog(final Uri uri) {
   private void processFileSave(final Uri uri, final String filename) {
     DocumentFile sourceDir = DocumentFile.fromTreeUri(mActivity, uri);
     if (sourceDir == null) {
-      UIHelper.toast(mActivity, mActivity.getString(R.string.uri_exception));
+      UIHelper.showErrorDialog(mActivity, R.string.error_title,
+          mActivity.getString(R.string.uri_exception) + ": '" + uri.toString() + "'");
       Log.e(getClass().getSimpleName(), "1 - Uri exception: '" + uri + "'");
       return;
     }
@@ -122,8 +123,9 @@ private void processFileSave(final Uri uri, final String filename) {
     } else {
       DocumentFile dFile = sourceDir.createFile("application/octet-stream", filename);
       if (dFile == null) {
-        UIHelper.toast(mActivity, mActivity.getString(R.string.uri_exception));
-        Log.e(getClass().getSimpleName(), "2 - Uri exception: '" + uri + "'");
+        UIHelper.showErrorDialog(mActivity, R.string.error_title,
+            mActivity.getString(R.string.uri_exception) + ": '" + filename + "'");
+        Log.e(getClass().getSimpleName(), "2 - Uri exception: '" + uri + "', filename: '" + filename + "'");
       } else {
         FileData fd = new FileData(mActivity, dFile.getUri(), false);
         mActivity.setFileData(fd);
diff --git a/app/src/main/java/fr/ralala/hexviewer/ui/tasks/TaskOpen.java b/app/src/main/java/fr/ralala/hexviewer/ui/tasks/TaskOpen.java
index bf2a3a47..57aef813 100644
--- a/app/src/main/java/fr/ralala/hexviewer/ui/tasks/TaskOpen.java
+++ b/app/src/main/java/fr/ralala/hexviewer/ui/tasks/TaskOpen.java
@@ -59,7 +59,7 @@ public TaskOpen(final Activity activity,
                   final HexTextArrayAdapter adapter,
                   final OpenResultListener listener, final String oldToString, final boolean addRecent) {
     super(activity, true);
-    mApp = (ApplicationCtx)activity.getApplicationContext();
+    mApp = (ApplicationCtx) activity.getApplicationContext();
     mMemoryMonitor = new MemoryMonitor(mApp.getMemoryThreshold(), 2000);
     mContext = activity;
     mContentResolver = activity.getContentResolver();
@@ -93,11 +93,11 @@ public void onPostExecute(final Result result) {
     super.onPostExecute(result);
     mMemoryMonitor.stop();
     if (mLowMemory.get())
-      UIHelper.toast(mContext, mContext.getString(R.string.not_enough_memory));
+      UIHelper.showErrorDialog(mContext, R.string.error_title, mContext.getString(R.string.not_enough_memory));
     else if (isCancelled())
       UIHelper.toast(mContext, mContext.getString(R.string.operation_canceled));
     else if (result.exception != null)
-      UIHelper.toast(mContext, mContext.getString(R.string.exception) + ": " + result.exception);
+      UIHelper.showErrorDialog(mContext, R.string.error_title, mContext.getString(R.string.exception) + ": " + result.exception);
     else {
       if (result.listHex != null) {
         mAdapter.setStartOffset(result.startOffset);
@@ -130,10 +130,10 @@ public void onCancelled() {
   }
 
   private void processRead(final FileData fd,
-                              final List<LineEntry> list,
-                              final Result result,
-                              long totalSequential,
-                              int maxLength) throws IOException {
+                           final List<LineEntry> list,
+                           final Result result,
+                           long totalSequential,
+                           int maxLength) throws IOException {
     boolean first = true;
     int reads;
     boolean forceBreak = false;
@@ -155,7 +155,7 @@ private void processRead(final FileData fd,
         result.exception = iae.getMessage();
         forceBreak = true;
       }
-      if(forceBreak)
+      if (forceBreak)
         break;
     }
   }
@@ -188,8 +188,8 @@ public Result doInBackground(ContentResolver contentResolver, FileData fd) {
         /* prepare result */
         if (result.exception == null) {
           result.listHex = list;
-          if(!mCancel.get()) {
-            if(mOldToString != null)
+          if (!mCancel.get()) {
+            if (mOldToString != null)
               mApp.getRecentlyOpened().remove(mOldToString);
             if (mAddRecent)
               mApp.getRecentlyOpened().add(fd);
diff --git a/app/src/main/java/fr/ralala/hexviewer/ui/tasks/TaskSave.java b/app/src/main/java/fr/ralala/hexviewer/ui/tasks/TaskSave.java
index 93336bf2..7775784a 100644
--- a/app/src/main/java/fr/ralala/hexviewer/ui/tasks/TaskSave.java
+++ b/app/src/main/java/fr/ralala/hexviewer/ui/tasks/TaskSave.java
@@ -94,11 +94,11 @@ public void onPostExecute(final Result result) {
           Log.e(this.getClass().getSimpleName(), "File delete error");
         }
       }
-      UIHelper.toast(mContext, mContext.getString(R.string.operation_canceled));
+      UIHelper.showErrorDialog(mContext, R.string.error_title, mContext.getString(R.string.operation_canceled));
     } else if (result.exception == null)
       UIHelper.toast(mContext, mContext.getString(R.string.save_success));
     else
-      UIHelper.toast(mContext, mContext.getString(R.string.exception) + ": " + result.exception);
+      UIHelper.showErrorDialog(mContext, R.string.error_title, mContext.getString(R.string.exception) + ": " + result.exception);
     if (mListener != null)
       mListener.onSaveResult(result.fd, result.exception == null && !isCancelled(), result.runnable);
   }
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 29ba80d3..c101d209 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
@@ -172,6 +172,28 @@ public static void showErrorDialog(final Context context, CharSequence title, St
         .setPositiveButton(android.R.string.ok, (dialog, whichButton) -> dialog.dismiss()).show();
   }
 
+  /**
+   * Displays an error dialog.
+   *
+   * @param context The Android context.
+   * @param title   The dialog title.
+   * @param message The dialog message.
+   */
+  public static void showErrorDialog(final Context context, int title, String message) {
+    showErrorDialog(context, context.getString(title), message);
+  }
+
+  /**
+   * Displays an error dialog.
+   *
+   * @param context The Android context.
+   * @param title   The dialog title.
+   * @param message The dialog message.
+   */
+  public static void showErrorDialog(final Context context, int title, int message) {
+    showErrorDialog(context, context.getString(title), context.getString(message));
+  }
+
   /**
    * Returns the view associated with a position
    *