Bugfix: crash when exporting zero tracks.

Fixes #2285
2026-02-21 14:40:17 +01:00
1 changed files with 12 additions and 4 deletions
@@ -167,8 +167,11 @@ public class ExportActivity extends AbstractActivity {
            new Thread(() -> {
                directoryFiles = ExportUtils.getAllFiles(ExportActivity.this, documentFile.getUri());
                runOnUiThread(() -> {
-                    createExportTasks(allInOneFile);
+                    if (createExportTasks(allInOneFile)) {
                        nextExport(null);
+                    } else {
+                        onExportEnded();
+                    }
                });
            }).start();
        } else {
@@ -217,8 +220,12 @@ public class ExportActivity extends AbstractActivity {
        exportTasks.clear();
    }

-    private void createExportTasks(boolean allInOneFile) {
+    private boolean createExportTasks(boolean allInOneFile) {
        List<Track> tracks = contentProviderUtils.getTracks();
+        if (tracks.isEmpty()) {
+            return false;
+        }
+
        exportTasks = new ArrayList<>();
        if (allInOneFile) {
            String filename = "OpenTracks-Backup";
@@ -227,6 +234,7 @@ public class ExportActivity extends AbstractActivity {
            exportTasks.addAll(tracks.stream().map(it -> new ExportTask(null, trackFileFormat, List.of(it.id()))).toList());
        }
        trackExportTotalCount = exportTasks.size();
+        return true;
    }

    /**
@@ -391,7 +399,7 @@ public class ExportActivity extends AbstractActivity {

        /**
         * Try to resolve the conflict if user gave the info needed.
-         * Otherwise shows the buttons and views needed to gives the user the possibility of take a decision.
+         * Otherwise, shows the buttons and views needed to gives the user the possibility of take a decision.
         *
         * @return true if it could resolve the conflict or false otherwise.
         */