Thank you for your interest.
after I renamed a folder. I did re-scanning by sending broadcast intent as
below.
Context applicationContext = MyApplication.*getInstance*
().getApplicationContext();
applicationContext.sendBroadcast(*new* Intent(Intent.*
ACTION_MEDIA_SCANNER_SCAN_FILE*,
and then, delete former folder name in database as below.
*public* *boolean* deleteFolder(String folderPath){
*boolean* isSuccessful = *false*;
Cursor cursor = *null*;
String selection;
DELETE_FOLDER : {
//1. Get folder '_id' list.(with duplicated one).
ArrayList<Integer> folderIdList = *new*ArrayList<Integer>();
String[] projection = {
FileSchema.Columns.*_ID*
};
selection = FileSchema.Columns.*DATA* + " = \"" +
folderPath + "\"";
cursor = SqliteWrapper.*query*(getContext(),
getContentResolver(), FileSchema.*getContentUri*("external"), projection,
selection, *null*, *null*);
*if*(cursor != *null* && cursor.moveToFirst() &&
cursor.getCount() > 0){
*int* dataIndex = cursor.getColumnIndex(FileSchema.Columns.*
_ID*);
*do* {
folderIdList.add(cursor.getInt(dataIndex));
} *while* ( cursor.moveToNext() );
cursor.close();
} *else* {
isSuccessful = *false*;
*break* DELETE_FOLDER;
}
//2. Delete folders in DB.
*while* ( folderIdList.isEmpty() == *false* ) {
*int* folderId = folderIdList.remove(0);
*int* numberOfDeleted =
SqliteWrapper.*delete*(getContext(),
getContentResolver(), FileSchema.*getContentUri*("external"), "_id=\""
+Integer.*toString*(folderId)+"\"", *null*);
*if* (numberOfDeleted < 0) {
isSuccessful = *false*;
*break* DELETE_FOLDER;
}
}
//3. Delete files in DB.
selection = FileSchema.Columns.*DATA* + " LIKE \"" +
folderPath + "/%\"";
*int* numberOfDeleted =
SqliteWrapper.*delete*(getContext(),
getContentResolver(), FileSchema.*getContentUri*("external"), selection, *
null*);
*if*(numberOfDeleted < 0){
isSuccessful = *false*;
*break* DELETE_FOLDER;
}
//4. Success!
isSuccessful = *true*;
*break* DELETE_FOLDER;
}
*return* isSuccessful;
}
On Wednesday, July 4, 2012 1:58:22 AM UTC+9, Mark Murphy (a Commons Guy)
wrote:
>
> How did you do the "re-scanning"?
>
> On Tue, Jul 3, 2012 at 12:53 PM, Hyuck <[email protected]> wrote:
> > Hi All,
> >
> > I have develop a kind of file manager app. recently, I have met a
> strange
> > behavior of media scanner.
> > There was a folder(A) with some media files in it. and I renamed the
> folder
> > name to B.
> > However, after a re-scanning , there is still folder A, and the folder
> have
> > media files which have 0bytes.
> > is there anyone who have this kind of problem? if so, please give me
> some
> > advise. it would be much appreciated.
> >
> > Hyuck.
> >
> > --
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>
>
>
> --
> Mark Murphy (a Commons Guy)
> http://commonsware.com | http://github.com/commonsguy
> http://commonsware.com/blog | http://twitter.com/commonsguy
>
> _The Busy Coder's Guide to Android Development_ Version 3.7 Available!
>
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