ios - With UIPanGestureRecognizer, is there a way to only act so often, like after x many pixels were panned? -

right uipangesturerecognizer recognizes every single pan, great , necessary, i'm using sliding gesture increase , decrease variable's value, within method want act every often. if increment 1 every time it's detected value goes far fast.

is there way like, every 10 pixels of panning this, or similar?

you're looking translationinview:, tells how far pan has progressed , can tested against minimum distance. solution doesn't cover case go , forth in 1 direction in amount equal minimum distance, if that's important scenario it's not hard add.

#define kminimumpandistance 100.0f  uipangesturerecognizer *recognizer; cgpoint lastrecognizedinterval;  - (void)viewdidload {     [super viewdidload];      recognizer = [[uipangesturerecognizer alloc] initwithtarget:self action:@selector(didrecognizepan:)];     [self.view addgesturerecognizer:recognizer]; }  - (void)didrecognizepan:(uipangesturerecognizer*)sender {     cgpoint thisinterval = [recognizer translationinview:self.view];      if (abs(lastrecognizedinterval.x - thisinterval.x) > kminimumpandistance ||         abs(lastrecognizedinterval.y - thisinterval.y) > kminimumpandistance) {          lastrecognizedinterval = thisinterval;          // add method call here     } }