uigesturerecognizer - Unable to detect swipe position from bottom to top in iOS -

i have tried code gesture not detect.

 uiswipegesturerecognizer *mswipeuprecognizer = [[uiswipegesturerecognizer alloc] initwithtarget:self action:@selector(up_downbtn_waytosalon)];  [mswipeuprecognizer setdirection:uiswipegesturerecognizerdirectionup];  [self.duration_distanceview addgesturerecognizer:mswipeuprecognizer]; 

first off, need pass gesture recognizer selector, otherwise can't determine state of gesture.

other first check if view has userinteractionenabled yes, i'm guessing view doesn't user interaction.