ios - UIScreenEdgePanGestureRecognizer never fires action -

i'm trying detect continued dragging past bottom of screen. tried using uipangesturerecognizer, stops firing finger reaches edge of screen, except @ top. i'm trying uiscreenedgepangesturerecognizer, although gesturerecognizer delegate method shouldreceivetouch fires, designated selector gesture never fires. appreciated.

this code in viewdidload:

uiscreenedgepangesturerecognizer *selectscreenedgedrag = [[uiscreenedgepangesturerecognizer alloc] initwithtarget:self action:@selector(screenedgeselect:)]; [selectscreenedgedrag setedges:uirectedgebottom]; selectscreenedgedrag.delegate = self; [self.view addgesturerecognizer:selectscreenedgedrag]; 

delegate methods:

- (void)screenedgeselect:(uiscreenedgepangesturerecognizer *)gesture {     nslog(@"screenedgeselect"); }  - (bool)gesturerecognizer:(uigesturerecognizer *)gesturerecognizer shouldrecognizesimultaneouslywithgesturerecognizer:(uigesturerecognizer *)othergesturerecognizer {     nslog(@"shouldrecognizesimultaneouslywithgesturerecognizer");     return yes; }  - (bool)gesturerecognizer:(uigesturerecognizer *)gesturerecognizer shouldreceivepress:(uipress *)press {     nslog(@"shouldreceivepress");     return yes; }  - (bool)gesturerecognizer:(uigesturerecognizer *)gesturerecognizer shouldreceivetouch:(nonnull uitouch *)touch {     nslog(@"shouldreceivetouch");     return yes; }  - (bool)gesturerecognizer:(uigesturerecognizer *)gesturerecognizer shouldberequiredtofailbygesturerecognizer:(uigesturerecognizer *)othergesturerecognizer{   return no; } 

what doing wrong?

thanks.

it never fires because set edges property uirectedgebottom , collides system control center. whenever i'm trying swipe bottom edge control center showing up. if set edges uirectedgeleft or uirectedgeright work fine.

if still need use bottom-edge gesture here options have (as far know):

• you can hide status bar (uistatusbar): in case code work expected. having status bar hidden, control center not showing automatically. instead small arrow displayed @ bottom edge giving users possibility open settings if want to. should careful 'cause according apple's guidelines:

think twice before permanently hiding status bar.

• you can ask users disable control center in ios settings. but, guess, annoyed must such hard work :(

hope info useful.