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

Add PulsingHaloLayer.h,m into your project
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.

woshizilong/PulsingHalo

PulsingHalo