After asking help about a zooming feature for big images ( Speed up zoom feature in ImageView ) Ashton Engberg replies with the great Ion library that allows you to use the Deep Zoom feature.
Really a good library, although for multiple reasons (mainly because the architecture of my app is already fixed and really hard to change) I want only the deep zoom feature and not all the connection stuff.
Anyone could help me to isolate that feature from everything else? Until now my efforts were pointless, even for building the Ion library.
Any hint, even really small, is appreciated.
The Android Arsenal is your friend.
(unless you're a huge fan of another Premier League team and have an aversion to anything with "Arsenal" in the name, in which case the Android Arsenal is not your friend, but still is a useful site)
Searching the Arsenal for zoom turns up a few libraries offering pinch-to-zoom capabilities. Of those, the one that seems closest to "Deep Zoom", off the cuff, is Subsampling Zoom Image View, in that it is designed to deal with very large images. Though if your image is already pre-tiled, TileView may be a better choice.