Update:
I can take browse through settings of the camera and I can also take some pictures, but as the shutter button is not showing I have to take the picture with the volume key.
Aside from the shutter button there are few others icons missing, so I guess I have to find more apks and lib files related to the camera. I might try tomorrow because I'm going to sleep now.
I'll have a look. Right now it's not working for me because it ask em to download extra data and when I try some Samsung Hub or something different show me an error.
By the way I guess the app is just a barcode scanner. Am I wrong?
I have it working now, but I did it after lot of trial & error (deleting apks, copying apks, libs..), so I won't upload anything till I'm sure about what files I used and deleted to make it work.
Thanks for the multiwindow link
I'll try it tomorrow
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