This library is written in Jetpack Compose and is mainly for file selection.FileSelector supports the selection of files, folders and multi-selected files, folders, and supports the return to the previous level of directories
You usually use ActivityResultContracts when you use Jetpack Compose for file selection, for example you can use OpenDocument for file selection, OpenDocumentTree for folder selection, and so on. However, the author has some different requirements in the ordinary use of ActivityResultContracts. For example, I need to go to a certain path (external storage Music directory, etc.) to select certain files (apk files, etc.), which are not fully satisfied by ActivityResultContracts.
FileSelector is a Compose function, and you can put it in any Compose function, such as the Dialog or Activity layout.
First you need to make sure you have permission to browse your path. Such as external storage root directory, the Android 6.0 need to request the WRITE_EXTERNAL_STORAGE, Android 10 you can set up the requestLegacyExternalStorage nodes, Android 11 more than you need to get the ACTION_MANAGE_APP_ALL_FILES_ACCESS_PERMISSION and so on. Demo simply sets targetSdk to 29 for convenience and uses accompanist's permissions library to request permissions.
The FileSelector function needs to pass FileSelectorData, onClose callback, and onSelectedPaths callback.
FileSelectorData is a data class, and the rootPath field is the root directory you want to select; isSelectFile specifies whether to select a file or a folder. By default, true selects a file, and false selects a folder. isMultiple Indicates whether to select multiple. The default value is false. fileType indicates the fileType you want to select, such as "apk" for apk files, only if isSelectFile = true.
data class FileSelectorData(
val rootPath: String,
val isSelectFile: Boolean = true,
val isMultiple: Boolean = false,
val fileType: String = ""
)onClose is a function type argument that is called back when it clicks the close button.
onSelectedPaths is a function type parameter that is called back when the confirm button is clicked, where you can get the collection of selected files or folders.
