From 5c655e769c71674422302e1f9c1ee3e4c4d7bc8d Mon Sep 17 00:00:00 2001
From: OneWay <info@oneway.asia>
Date: Tue, 6 Oct 2026 09:42:54 +0800
Subject: [PATCH] fix(settings): skip the startup scan when dictionaries are
 already loaded

A second activity instance (PROCESS_TEXT) ran the full directory scan
again, and the main screen stayed blank until the scan finished. The
repository is a process-wide singleton: when it already holds
dictionaries, mark them up to date and load preferences immediately.
---
 .../com/example/research/ui/settings/SettingsViewModel.kt  | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/com/example/research/ui/settings/SettingsViewModel.kt b/app/src/main/java/com/example/research/ui/settings/SettingsViewModel.kt
index 0f86e1d..a9647c8 100644
--- a/app/src/main/java/com/example/research/ui/settings/SettingsViewModel.kt
+++ b/app/src/main/java/com/example/research/ui/settings/SettingsViewModel.kt
@@ -280,7 +280,12 @@ class SettingsViewModel(
         var scanCompleted = false
         viewModelScope.launch {
             try {
-                scanCompleted = scanDirectoryInternal(preferencesManager.dictionaryPath) is OperationResult.Success
+                scanCompleted = if (localDictionaryRepository.dictionaries.value.isEmpty()) {
+                    scanDirectoryInternal(preferencesManager.dictionaryPath) is OperationResult.Success
+                } else {
+                    dictionaryStatus.value = DictionaryStatus.UpToDate
+                    false
+                }
             } catch (e: Exception) {
                 android.util.Log.e("SettingsViewModel", "Initial scan failed", e)
                 dictionaryStatus.value = if (localDictionaryRepository.dictionaries.value.isEmpty()) {