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Can't slide some photos on tablet

A

adaviel

Lurker
I have an Asus ME173X tablet with 4.2.2

If I take photos with the built-in camera, they end up in a DCIM/Camera folder. If I visit that in file manager, and open a photo in one of the suggested apps, I can view consecutive photos by sliding. I get a choice of File Manager, Gallery, ASUS Studio or Photo.

If I copy photos from a real camera into the same folder, I can view them but not slide to the next.

If I copy photos to a folder on removable SD card, none of them will slide.
At least, not in Photo or Gallery, but today I can slide them if I use File Manager. I am fairly sure that a couple of days ago they would not slide in File Manager, either.

Is there some kind of indexing program running in the background ? Is there anything special about the builtin camera app that makes slidable photos ?

This is rather annoying, because viewing photos is one of the few things that the tablet is actually good for, in my opinion (far better than my phone, easier to pass around than a laptop)
 
Make sure the file format of the photos that you are putting onto your SD card are the same format as those pictures taken buy the tablet.
 
sreum said:
Make sure the file format of the photos that you are putting onto your SD card are the same format as those pictures taken buy the tablet.
Click to expand...
What do you mean format ?
They are all JPEGs, and they display OK in any app. It's just the sliding that fails.
 
adaviel said:
What do you mean format ?
They are all JPEGs, and they display OK in any app. It's just the sliding that fails.
Click to expand...

yeah, like jpeg......... What happens if you move them from the working file, to another location then back to the working file?
 
Yes, I can save them to SD. I can't specify the folder, it creates a new one MicroSD/DCIM/Camera. Those, I can slide.

If I overwrite photos in the DCIM folder with ones from my camera, they still slide.

There's a good chance there's some indexer running - I copied photos over wifi to the tablet with scp and/or moved them and copied them in the shell over ssh, because that's so much easier with a real keyboard. But if I use the file manager on the tablet to move them, it looks like they get indexed and will slide. So I need some way to index them manually, preferably from the shell, that does not involve messing around with a stylus touching hundreds of little boxes on screen.
 
Not over write them, if you remove them completely and then put them right back to the same location what happens? It's a little hard to diagnose with out being right there, that's why I'm asking.
 
The main reason is simply because you're using the File Manager to view photos. Similar thing happens on Windows actually. Open up a photo and it can show the entire set of photos in the folder by pressing next. If you add another photo in the folder (but do not close the open photo viewer), no matter how many times you press next, the new photo won't show.

What you should do when you want to look at photos is to go to app drawer and select gallery. No need to open up File Manager. In fact you can use your device fine even without file manager.
 
sreum said:
Not over write them, if you remove them completely and then put them right back to the same location what happens? It's a little hard to diagnose with out being right there, that's why I'm asking.
Click to expand...
If I remove a photo, it disappears immediately from the file manager view. If I open a different photo and slide, it depends on the app. In file manager, it is not there. In "photo" (Google+ I think), it is still there. In Asus photo, it says "damaged photo". In Gallery, it says "no thumbnail".
If I replace the photo, it reappears the same as before
 
Try on more thing, move both a non working photo and working photo to a computer. Then check out the properties on the computer of both photos. See if there is anything different between the two. Even compare the pictures data sizes.
 
chanchan05 said:
What you should do when you want to look at photos is to go to app drawer and select gallery. No need to open up File Manager. In fact you can use your device fine even without file manager.
Click to expand...

Most of the photos from my camera are missing from gallery. I don't know how to run the indexer. It's also a bit confusing to use - some of the sort-by-time categories are using the date I'd copied the file, not the creation date from EXIF.
 
sreum said:
Try on more thing, move both a non working photo and working photo to a computer. Then check out the properties on the computer of both photos. See if there is anything different between the two. Even compare the pictures data sizes.
Click to expand...
Well, yes, of course they are different. But I don't think that's relevant. The pictures display OK, it's not like I'm trying to display a TIFF or RAW photo. It's just the gallery indexing which I suspect is tied to the inability to slide from one to the next.
 
chanchan05 said:
Try downloading and using Quickpic from the Play Store as your main gallery.
Click to expand...
Thanks, that works. Looks like it scans the entire device by default.

I'd still like to know why the default gallery app won't work properly, but it's probably not worth wasting any more time on.
 
adaviel said:
Well, yes, of course they are different. But I don't think that's relevant. The pictures display OK, it's not like I'm trying to display a TIFF or RAW photo. It's just the gallery indexing which I suspect is tied to the inability to slide from one to the next.
Click to expand...

Actually it can be relevant
 
sreum said:
Actually it can be relevant
Click to expand...
Well, yes - the indexer and the viewer are two different programs. The indexer I wrote for my website will only handle JPEGs for instance. But trying to isolate something out of the hundreds of different possible parameters seems futile, when the basic problem seems to be that the indexer is not running in the first place unless a photo arrives by some particular method, such as being created by the internal camera. I presume that somewhere on the tablet there's a process listening for an event "photo arrived" and that sftp/scp is not triggering it. But that's just my guess.
 
I found a similar problem on my new Samsung tablet when accessing photos from the desktop computer on my LAN via WiFi. This was using the Asus File Manager to select photos. However, by switching to the ES File Explorer, I found I could easily view all the photos in a folder by a simple side swipe.
When selecting the first photo, with no photo image apps (such as Gallery) set as default viewer, I believe that ES File Explorer uses its own image browser, and this does permit 'swiping'.
 
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