I have a DocumentFile
defined in following two ways:
DocumentFile documentFile;
Uri documentFileUri;
I can delete a document file from the sd card via following methods:
documentFile.delete();
DocumentsContract.deleteDocument(contentResolver, documentFileUri);
But non of the above methods will delete the corresponding entry from the MediaStore
.
What's the correct way to handle that? If I use the ContentProvider
for deleting a local file, it will remove the File
AND the row from the database (contentResolver.delete(localFileUri, null, null);
). I would expect the same to happen if I use the DocumentsContract
but it does not happen...
What I want
I want to instandly update the MediaStore
. Normally I would call contentResolver.delete(documentFileUri, null, null);
but this will fail with an exception that says, that the uri does not support deletions...
Question
Is there a more efficiant way to do it than my workaround?
Workaround
Currently I use following function to instantly update the media store after I deleted a DocumentFile
:
public static boolean updateAfterChangeBlocking(String path, int timeToWaitToRecheckMediaScanner)
{
final AtomicBoolean changed = new AtomicBoolean(false);
MediaScannerConnection.scanFile(StorageManager.get().getContext(),
new String[]{path}, null,
new MediaScannerConnection.OnScanCompletedListener() {
public void onScanCompleted(String path, Uri uri) {
changed.set(true);
}
});
while (!changed.get()) {
try {
Thread.sleep(timeToWaitToRecheckMediaScanner);
} catch (InterruptedException e) {
return false;
}
}
return true;
}
As fatboy pointed out, the behaviour is by design - documented in this google issue: https://issuetracker.google.com/issues/138887165
Solution:
There probably is no better solution than what I already posted in my question than following:
DocumentFile
object or with it's URI
and DocumentsContract.deleteDocument
MediaScannerConnection.scanFile(...)
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