Custom iOS Floating Button -

i've been looking around on internet , there doesn't seem in way of conversation (or i'm asking wrong question - i'm new @ objective-c , ios both) creating custom assistive touch-like button in ios.

i access app launcher application , float button let me go said launcher anywhere in app. floating assistive touch button scheme seems perfect - has made that?

[edit]

in response meaningful questions - wasn't clear enough (again, apologies - inexperienced here).

i have 3 apps: app gatherer, app target 01, app target 02.

app gatherer able launch multiple apps via url. once that, , new app opens, i'm wondering if can have floating button can moved around , clicked seperate ui of target app assistive touch button. purpose of floating button me out of target apps - it's totally separate - gatherer app.

i don't have implementation - i'm trying map out , see if it's possible. in wrong place ask that?

when u open app using url appgatherer. in target app there 1 way of going appgatherer , using url again time opening appgatherer. custom floating button have implemented inside apptarget , when person clicks button appgatherer opened via url scheme. there no other way around. cant have floating universal button. have implement floating button inside every apptarget application seperately. plus goes without saying button have implemented in every seperate view have within apptargt application.

and in order make floating button need keep above other views plus handle dragging within ondrag methods , etc.