How to associate alternative app to stock Gallery app when launched from stock Camera app I am running Android on a Samsung Galaxy SIII Neo (Android KitKat 4.4.2). I would like the stock Camera application to launch a different application than the stock Gallery application when the small square icon in the upper-right hand corner of the camera screen is clicked. Presumably, the stock Gallery app is opened via an intent, and I would like to associate a different app with the intent used to open the stock Galley app from the Camera app. I tried going to Settings -&gt; General -&gt; Application manager -&gt; ALL and for both the stock Camera app and the stock Gallery app it says that there are No defauts set.

The reason I would like to launch another app instead of the Gallery app from the Camera app is so that I can use an app capable of adding EXIF data (which would allow me to enter EXIF memos alongside any picture's EXIF data).

How can I accomplish this?
the answer is you can't ,because the "preview" button action is hard coded in the stock camera app as a link to the right activity in the stock gallery app it sends an intent with the path to the jpeg image to the stock gallery ,the link is not an intent that can be received  by third party apps ,even if you try deleting the stock gallery app the preview button will have no action and in some phones your camera app will force close.