rememberOpenDocumentTreeLauncher

actual fun rememberOpenDocumentTreeLauncher(onTreeUriSelect: (CommonUri?) -> Unit): () -> Unit(source)

Returns a launcher that prompts the user to pick a directory. The callback receives a tree URI, or null if the user cancelled.

Distinct from rememberSaveFileLauncher because a tree URI grants access to the picked directory's contents, which a single-document URI does not. Needed where the app must inspect a volume before writing to it — for example reading a UF2 bootloader's INFO_UF2.TXT to confirm which board it is and that the volume really is a bootloader drive.

@Composable

expect fun rememberOpenDocumentTreeLauncher(onTreeUriSelect: (CommonUri?) -> Unit): () -> Unit(source)

Returns a launcher that prompts the user to pick a directory. The callback receives a tree URI, or null if the user cancelled.

Distinct from rememberSaveFileLauncher because a tree URI grants access to the picked directory's contents, which a single-document URI does not. Needed where the app must inspect a volume before writing to it — for example reading a UF2 bootloader's INFO_UF2.TXT to confirm which board it is and that the volume really is a bootloader drive.

@Composable

actual fun rememberOpenDocumentTreeLauncher(onTreeUriSelect: (CommonUri?) -> Unit): () -> Unit(source)

JVM — Opens a native dialog to pick a directory.