Question: Every time I run my app in Xcode on the iOS Simulator, the folders in the project navigation pane all reset to just showing the closed top-level folders. 

I then have to re-drill-down to the code, opening all the folders on the way; but then when I run the app again we're back to square one.

There's presumably a really obvious settings button somewhere that I'm missing and have hit by accident, as I don't recall it doing this in the past. Can anyone point me towards it?

Answer: 
I would recommend to use [Picasso](http://square.github.io/picasso/) library from Square. And [PhotoView](https://github.com/chrisbanes/PhotoView) for image zooming.
Thanks a lot to all for all of ur answers. 

I thought that I should use inJustDecodeBounds option and load resized bitmap, but In need a fresh view to this problem of more experienced persons. 

I also thought about using Universal Image Loader for loading and caching large images and something like ScaleImageView for Zooming it. 

There is [something](http://developer.android.com/reference/android/graphics/BitmapRegionDecoder.html) that can solve my problem. Load bitmap partially.