Fix DB import/export issue

Author: Isira-Seneviratne

app/src/main/java/org/schabi/newpipe/settings/BackupRestoreSettingsFragment.java

@@ -16,7 +16,6 @@
 import androidx.activity.result.contract.ActivityResultContracts;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import androidx.core.content.ContextCompat;
 import androidx.preference.Preference;
 import androidx.preference.PreferenceManager;
 
@@ -39,7 +38,6 @@
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.Locale;
-import java.util.Objects;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 
@@ -69,8 +67,8 @@ public void onAttach(@NonNull final Context context) {
     @Override
     public void onCreatePreferences(@Nullable final Bundle savedInstanceState,
                                     @Nullable final String rootKey) {
-        final var dbDir = Objects.requireNonNull(ContextCompat.getDataDir(requireContext()))
-                .toPath();
+        final var dbDir = requireContext().getDatabasePath(BackupFileLocator.FILE_NAME_DB).toPath()
+                .getParent();
         manager = new ImportExportManager(new BackupFileLocator(dbDir));
 
         importExportDataPathKey = getString(R.string.import_export_data_path);

app/src/main/java/org/schabi/newpipe/settings/export/ImportExportManager.kt

@@ -10,7 +10,7 @@ import java.io.IOException
 import java.io.ObjectOutputStream
 import java.util.zip.ZipOutputStream
 import kotlin.io.path.createDirectories
-import kotlin.io.path.deleteExisting
+import kotlin.io.path.deleteIfExists
 import org.schabi.newpipe.streams.io.SharpOutputStream
 import org.schabi.newpipe.streams.io.StoredFileHelper
 import org.schabi.newpipe.util.ZipHelper
@@ -77,9 +77,9 @@ class ImportExportManager(private val fileLocator: BackupFileLocator) {
         val success = ZipHelper.extractFileFromZip(file, name, fileLocator.db)
 
         if (success) {
-            fileLocator.dbJournal.deleteExisting()
-            fileLocator.dbWal.deleteExisting()
-            fileLocator.dbShm.deleteExisting()
+            fileLocator.dbJournal.deleteIfExists()
+            fileLocator.dbWal.deleteIfExists()
+            fileLocator.dbShm.deleteIfExists()
         }
 
         return success