Android: can i update automatically a GalleryView?

I have a gallery that shows images from the sdcard; i would like to automatically populate it when the user adds new images in sdcard. Is there a way to do it?

Actually i make a loop in the filesystem to select image names; i don't use the ContentProvider because i've seen that if the user does not go to t开发者_StackOverflowhe Gallery app, thumbnails are not refreshed.

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You can use Handler/Thread to run it automatically