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  1. Qt
  2. QTBUG-72227

QFileSystemWatcher reacts only once on file change

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: P2: Important P2: Important
    • 5.12
    • 5.11.2
    • Core: Filesystem watching
    • None
    • Linux/X11

      Catching file change in following way:

          QFileSystemWatcher watcher;
    QFileInfo file(url.toLocalFile());
    watcher.addPath(file.absoluteFilePath());
    connect(&watcher, &QFileSystemWatcher::fileChanged, this, &MyClass::mySlot);

      slot receives signal only once, then QFileSystemWatcher does not react on any file change. To catch file changes use following workaround - added following lines:

          qmlWatcher.addPath(file.absolutePath());
    connect(&watcher, &QFileSystemWatcher::directoryChanged, this, &MyClass::mySlot);

      In this case able to catch all further file modifications.

        1. qtbug-72227.7z
          1 kB
          Kai Köhne
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            thiago Thiago Macieira
            jirauser39314 user-45b5b (Inactive)
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              Created:
              Updated:
              Resolved:

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