Xcode Objective-C | iOS: delay function / NSTimer help?

Question

So I\'m developing my first iOS application and I need help..

Simple program for now, I have about 9 buttons and when I press the first button, or any button, I just wan

Answer 1

int64_t delayInSeconds = 0.6;
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
     do something to the button(s)
});