How to extract the file name from URI returned from Intent.ACTION_GET_CONTENT?

Question

I am using 3rd party file manager to pick a file (PDF in my case) from the file system.

This is how I launch the activity:

Intent i         


        

Answer 1

For Kotlin, You can use something like this :

object FileUtils {

   fun Context.getFileName(uri: Uri): String?
        = when (uri.scheme) {
            ContentResolver.SCHEME_FILE -> File(uri.path).name
            ContentResolver.SCHEME_CONTENT -> getCursorContent(uri)
            else -> null
        }

    private fun Context.getCursorContent(uri: Uri): String? 
        = try {
            contentResolver.query(uri, null, null, null, null)?.let { cursor ->
                cursor.run {
                    if (moveToFirst()) getString(getColumnIndex(OpenableColumns.DISPLAY_NAME))
                    else null
                }.also { cursor.close() }
            }
        } catch (e : Exception) { null }