Trait WritableFolderPicker 

pub trait WritableFolderPicker {
    // Required method
    fn pick(&self) -> PickerFuture<Result<Option<String>, FilePickerError>>;

    // Provided method
    fn take_resumed_pick(&self) -> Option<String> { ... }
}

Presents the system “pick a writable folder” UI. Platform-provided (Android); desktop/web use the built-in backend.

Required Methods

fn pick(&self) -> PickerFuture<Result<Option<String>, FilePickerError>>

Resolves to the durable handle string, or None if the user cancelled.

Provided Methods

fn take_resumed_pick(&self) -> Option<String>

Reclaims a grant whose result arrived after the composition that requested it was torn down. On Android the activity (and the native app) can be destroyed and recreated while the SAF picker is in front, so a folder picked at that moment would otherwise be lost; the app drains this on startup to recover it. Returns the recovered durable handle, usually None. Backends that never lose a result keep the default.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors