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iOS Component For Creating A Pulsing Animation.
Objective-C Ruby
branch: master

README.md

PulsingHalo

iOS Component For Creating A Pulsing Animation. It allows you to create single halo or multiple halos.

Great For:

  • Beacons for iBeacon
  • Map Annotations

How to use

  1. Add PulsingHaloLayer.h,m into your project
  2. Initiate and add to your view.

Single halo

PulsingHaloLayer *halo = [PulsingHaloLayer layer];
halo.position = self.view.center;
[self.view.layer addSublayer:halo];

Multiple halos

//you can specify the number of halos by initial method or by instance property "haloLayerNumber"
MultiplePulsingHaloLayer *multiLayer = [[MultiplePulsingHaloLayer alloc] initWithHaloLayerNum:3 andStartInterval:1];
multiLayer.position = self.view.center;
[multiLayer buildSublayers];
[self.view.layer addSublayer:multiLayer];

Install with CocoaPods

Add Podfile.

pod "PulsingHalo"

And

$ pod install

Customization

radius

Use radius property.

self.halo.radius = 240.0;

color

Use backgroundColor property.

UIColor *color = [UIColor colorWithRed:0.7
                                 green:0.9
                                  blue:0.3
                                 alpha:1.0];

self.halo.backgroundColor = color.CGColor;

animation duration

Use animationDuration or pulseInterval property.

animation repeat count

Initialize using initWithRepeatCount: method, or set repeatCount property. The default value is INFINITY.

animation key values and times

Use properties fromValueForRadius, fromValueForAlpha and keyTimeForHalfOpacity.

enable/disable timing function for animation

Use property useTimingFunction

Demo

You can try to change the radius and color properties with demo app.

Special Thanks

Inspired by SVPulsingAnnotationView.

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