Pulse Effect (Objective C)

As the name describes pulse effect works similar to movement of your pulse. You might have come accross this effect while recording a sound in many applications. For this just add the below method in UIUtils class and pass

UIView - on which you want to apply this effect

Size - size in float , to which extend you want the view to expand

Duration - time, how fast you want the animation to be performed

Code:

+ (void) addPulseEffectOn:(UIView*)view toSize:(float)value withDuration:(float)duration

{    

    CABasicAnimation *pulseAnimation = [CABasicAnimation animationWithKeyPath:@"transform.scale"];

    pulseAnimation.duration = duration;

    pulseAnimation.toValue = [NSNumber numberWithFloat:value];;

    pulseAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];

    pulseAnimation.autoreverses = YES;

    pulseAnimation.repeatCount = FLT_MAX;

    

    [view.layer addAnimation:pulseAnimation forKey:nil];

} 

Now call this method in Life Cycle Method of View like 

Code:

- (void) viewWillAppear:(BOOL)animated

{

    [super viewWillAppear:YES];

    

    [UIUtils addPulseEffectOn:self.pulseEffectView toSize:1.1 withDuration:1];

}