Screenshots for Ingress is an integrated glyph hacking helper app for Ingress, the popular augmented reality massively multiplayer online role-playing mobile game for Android.
Screenshots for Ingress works as a simple floating application that displays the last few screenshots taken. It can therefore be useful for glyph hacking in Ingress game (in Portal view long-touch the Hack button).
On stock phones press the usual screenshot trigger combination (simultaneously press for a second or two one of: power + volume down, or power + home). Unfortunately this method can be too slow, use screenshots only for one or two glyphs and your brain for the rest.
On rooted phones screenshots can be taken programmatically much faster just by touching the floating icon. Make sure you have working binaries /system/xbin/su and /system/bin/screencap.
Long-touch the floating icon to remove the screenshots and shrink the window.