How to avoid RFD file dialogs hanging egui?

[pozix604]

The file_dialog example in the egui repository uses rfd to display a file dialog. Unfortunately, it also hangs the app:

It seems the only way to avoid this is to use async Rust. Does anyone have an example of how this is done?

[pozix604]

Never mind, solved it by running rfd in a separate thread:

let path = std::sync::Arc::clone(&self.open_file);
std::thread::spawn(move || {
    *path.lock().unwrap() = rfd::FileDialog::new()
        .set_directory("/")
        .pick_file()
        .map(std::path::PathBuf::from);
});