Re: [android-developers] Re: ContentResolver insert return null on 4.3

The solution for this issue is to query the Database, instead of insert to it, I posted the full solution with code to this issue in my blog:

http://androidwarzone.blogspot.co.il/2013/08/media-play-and-share-to-youtube-breaks.html

Eli

On Fri, Aug 2, 2013 at 11:20 PM, Eli Hasson <hasson.eli@gmail.com> wrote:

Yep,

Looks like I found the issue:

08-02 23:11:54.524: E/SQLiteDatabase(11214): Error inserting bucket_id=1643208667 media_type=3 title=out.mp4 storage_id=65537 mime_type=video/mp4 date_modified=1375474313 _display_name=out.mp4 date_added=1375474314 parent=1184 _size=325469 format=12299 _data=/storage/emulated/0/compressed/out.mp4 bucket_display_name=compressed

08-02 23:11:54.524: E/SQLiteDatabase(11214): android.database.sqlite.SQLiteConstraintException: column _data is not unique (code 19)

The thing is, Google changed the functionality of the insert, seems that column data must be unique.

Eli

On Fri, Aug 2, 2013 at 11:02 PM, Nobu Games <dev.nobu.games@gmail.com> wrote:

Is there anything in log cat related to MediaStore?

On Friday, August 2, 2013 2:43:17 PM UTC-5, eli wrote:

Thanks for your answer, I just entered hard coded values there to make the code more clear, this is not the issue.

Eli

On Aug 2, 2013 10:29 PM, "Nobu Games" <dev.nob...@gmail.com> wrote:

Sorry Eli,

I should have read your code more carefully. You're hard-coding file paths in that insert request which is bad practice. You cannot assume that there paths like "/sdcard/..." on all Android devices. They can be named completely differently depending on device / manufacturer and especially on Jelly Bean there's  something like a "virtual file system" for supporting multiple user accounts and these file paths look totally different.

You should make use of the context.getExternalStorage(...) and related methods (also look into the Environment class).

Maybe the hard-coded file path is the problem there?

On Friday, August 2, 2013 2:20:50 PM UTC-5, eli wrote:

It always return null on 4.3, and works perfectly on all other versions.

On Aug 2, 2013 10:13 PM, "Nobu Games" <dev.nob...@gmail.com> wrote:

I just had a quick peek at the API level 14 source code and it looks like there are two possible reasons for that problem:

1. The actual ContentProvider the ContentResolver connected to returns null on insert (for whatever reason, that is a mystery)
2. A RemoteException was thrown during the insert operation. The exception is caught by the ContentResolver and it returns just null instead. The reason for that is (according to the source code comment) that the process / app is about to die anyway.

Other ContentResolver methods behave exactly the same. Also the query methods. It can - without a warning - just return null, even though it works in your tests a million times.

You therefore need to check the result for null and come up with a strategy for coping with that problem, like scheduling a re-query or checking if your activity is about to be finished.

On Friday, August 2, 2013 12:29:31 PM UTC-5, eli wrote:

This code works on all Android versions except on 4.3:

                           ContentValues content = new ContentValues(4);

           content.put(Video.VideoColumns.TITLE, "vid.mp4");

           content.put(Video.VideoColumns.DATE_ADDED,

           System.currentTimeMillis() / 1000);

           content.put(Video.Media.MIME_TYPE, "video/mp4");

           content.put(MediaStore.Video.Media.DATA, "/sdcard/vid.mp4");

           ContentResolver resolver = getContentResolver();

           Uri uri = resolver.insert(MediaStore.Video.Media.EXTERNAL_CONTENT_URI,

           content);

On 4.3 uri is null.

Can someone help?

Thanks,

Eli

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