从 Android 11 开始，上述解决方案将不起作用，您可以尝试使用此解决方案来获取数据。
/**
* Call to fetch all media on device, it but be called synchronously since function is called on a background thread
*/
private fun fetchGalleryImages(
context: Context,
offset: Int,
limit: Int
): List<MediaItem> {
val galleryImageUrls = mutableListOf<MediaItem>()
try {
if (EasyPermissions.hasPermissions(
context,
Manifest.permission.WRITE_EXTERNAL_STORAGE
)
) {
// Define the columns that will be fetched
val projection = arrayOf(
MediaStore.Files.FileColumns._ID,
MediaStore.Files.FileColumns.DATA,
MediaStore.Files.FileColumns.DATE_ADDED,
MediaStore.Files.FileColumns.MEDIA_TYPE,
MediaStore.Files.FileColumns.MIME_TYPE,
MediaStore.Files.FileColumns.TITLE,
MediaStore.Video.Media.DURATION
)
val selection =
"${MediaStore.Files.FileColumns.MEDIA_TYPE} = ? OR ${MediaStore.Files.FileColumns.MEDIA_TYPE} = ?"
val selectionArgs = arrayOf(
MediaStore.Files.FileColumns.MEDIA_TYPE_IMAGE.toString(),
MediaStore.Files.FileColumns.MEDIA_TYPE_VIDEO.toString()
)
/**
* Change the way to fetch Media Store
*/
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
// Get All data in Cursor by sorting in DESC order
context.contentResolver.query(
contentUri(),
projection,
Bundle().apply {
// Limit & Offset
putInt(ContentResolver.QUERY_ARG_LIMIT, limit)
putInt(ContentResolver.QUERY_ARG_OFFSET, offset)
// Sort function
putStringArray( // <-- This should be an array. I spent a whole day trying to figure out what I was doing wrong
ContentResolver.QUERY_ARG_SORT_COLUMNS,
arrayOf(MediaStore.Files.FileColumns.DATE_MODIFIED)
)
putInt(
ContentResolver.QUERY_ARG_SORT_DIRECTION,
ContentResolver.QUERY_SORT_DIRECTION_DESCENDING
)
// Selection
putString(ContentResolver.QUERY_ARG_SQL_SELECTION, selection)
putStringArray(
ContentResolver.QUERY_ARG_SQL_SELECTION_ARGS,
selectionArgs
)
}, null
)
} else {
val sortOrder =
"${MediaStore.Files.FileColumns.DATE_MODIFIED} DESC LIMIT $limit OFFSET $offset"
// Get All data in Cursor by sorting in DESC order
context.contentResolver.query(
contentUri(),
projection,
selection,
selectionArgs,
sortOrder
)
}?.use { cursor ->
while (cursor.moveToNext()) {
galleryImageUrls.add(
MediaItem(
cursor.getLong(cursor.getColumnIndex(MediaStore.Files.FileColumns._ID)),
ContentUris.withAppendedId(
contentUri(),
cursor.getLong(cursor.getColumnIndex(MediaStore.Files.FileColumns._ID))
),
cursor.getString(cursor.getColumnIndex(MediaStore.Files.FileColumns.DATA)),
cursor.getStringOrNull(cursor.getColumnIndex(MediaStore.Files.FileColumns.MIME_TYPE)),
cursor.getLongOrNull(cursor.getColumnIndex(MediaStore.Video.Media.DURATION))
)
)
}
}
}
} catch (ex: Exception) {
ex.printStackTrace()
}
return galleryImageUrls
}