NSObject+Debounce.h

@interface NSObject (Debounce)

- (void)debounce:(SEL)action delay:(NSTimeInterval)delay;

- (void)debounce:(SEL)action object:(id)obj delay:(NSTimeInterval)delay;

@end

NSObject+Debounce.m

@implementation NSObject (Debounce)
  
- (void)debounce:(SEL)action object:(id)obj delay:(NSTimeInterval)delay
{
  __weak typeof(self) weakSelf = self;
  [NSObject cancelPreviousPerformRequestsWithTarget:weakSelf selector:action object:obj];
  [weakSelf performSelector:action withObject:obj afterDelay:delay];
}

- (void)debounce:(SEL)action delay:(NSTimeInterval)delay
{
  [self debounce:action object:nil delay:delay];
}

@end

NSObject+Debounce.podspec.json

{
  "name": "NSObject+Debounce",
  "version": "1.0.0",
  "summary": "Debounce selector for specific delay",
  "homepage": "https://gist.github.com/berzniz/8618806",
  "license": "MIT",
  "authors": "berzniz",
  "source": {
    "git": "https://gist.github.com/misterwell/3d12ee490a8c9e7cc6393bbc796e08c5",
    "commit": "3d12ee490a8c9e7cc6393bbc796e08c5"
  },
  "platforms": {
    "ios": "6.0"
  },
  "source_files": [
    "*.{h,m}"
  ],
  "requires_arc": true
}