From 045ee21f6a8a924c02827eccd63499fa92dd1372 Mon Sep 17 00:00:00 2001
From: shu223 <shuichi0526@gmail.com>
Date: Sun, 15 Jan 2017 17:52:35 -0800
Subject: [PATCH] added a property to disable resume

---
 PulsingHalo/PulsingHaloLayer.h |  6 ++++++
 PulsingHalo/PulsingHaloLayer.m | 23 +++++++++++------------
 2 files changed, 17 insertions(+), 12 deletions(-)

diff --git a/PulsingHalo/PulsingHaloLayer.h b/PulsingHalo/PulsingHaloLayer.h
index 733d09f..0fac2d5 100644
--- a/PulsingHalo/PulsingHaloLayer.h
+++ b/PulsingHalo/PulsingHaloLayer.h
@@ -67,6 +67,12 @@
  */
 @property (nonatomic, assign) NSTimeInterval startInterval;
 
+/**
+ *  When this value is true, the halo will be automatically resumed after entering foreground.
+ *
+ *	The default value of this property is YES.
+ */
+@property (nonatomic, assign) BOOL shouldResume;
 
 - (void)start;
 
diff --git a/PulsingHalo/PulsingHaloLayer.m b/PulsingHalo/PulsingHaloLayer.m
index d309fb0..dcf6dd3 100644
--- a/PulsingHalo/PulsingHaloLayer.m
+++ b/PulsingHalo/PulsingHaloLayer.m
@@ -70,11 +70,8 @@ - (void)onDidEnterBackground:(NSNotification *)notification {
 }
 
 - (void)onWillEnterForeground:(NSNotification *)notification {
-    NSLog(@"effect:%@, superlayer:%@, effect.superlayer:%@", self.effect, self.superlayer, self.effect.superlayer);
-    [self addSublayer:self.effect];
-    [self.prevSuperlayer insertSublayer:self atIndex:self.prevLayerIndex];
-    if (self.prevAnimation) {
-        [self.effect addAnimation:self.prevAnimation forKey:@"pulse"];
+    if (self.shouldResume) {
+        [self _resume];
     }
 }
 
@@ -97,7 +94,6 @@ - (void)setBackgroundColor:(CGColorRef)backgroundColor {
 }
 
 - (void)setRadius:(CGFloat)radius {
-    
     _radius = radius;
     
     CGFloat diameter = self.radius * 2;
@@ -107,7 +103,6 @@ - (void)setRadius:(CGFloat)radius {
 }
 
 - (void)setPulseInterval:(NSTimeInterval)pulseInterval {
-    
     _pulseInterval = pulseInterval;
     
     if (_pulseInterval == INFINITY) {
@@ -116,20 +111,17 @@ - (void)setPulseInterval:(NSTimeInterval)pulseInterval {
 }
 
 - (void)setHaloLayerNumber:(NSInteger)haloLayerNumber {
-    
     _haloLayerNumber = haloLayerNumber;
     self.instanceCount = haloLayerNumber;
     self.instanceDelay = (self.animationDuration + self.pulseInterval) / haloLayerNumber;
 }
 
 - (void)setStartInterval:(NSTimeInterval)startInterval {
-    
     _startInterval = startInterval;
     self.instanceDelay = startInterval;
 }
 
 - (void)setAnimationDuration:(NSTimeInterval)animationDuration {
-
     _animationDuration = animationDuration;
     
     self.instanceDelay = (self.animationDuration + self.pulseInterval) / self.haloLayerNumber;
@@ -145,6 +137,7 @@ - (void)setRepeatCount:(float)repeatCount {
 #pragma mark - Private
 
 - (void)_setupDefaults {
+    _shouldResume = YES;
     _fromValueForRadius = 0.0;
     _keyTimeForHalfOpacity = 0.2;
     _animationDuration = 3;
@@ -159,7 +152,6 @@ - (void)_setupDefaults {
 }
 
 - (void)_setupAnimationGroup {
-    
     CAAnimationGroup *animationGroup = [CAAnimationGroup animation];
     animationGroup.duration = self.animationDuration + self.pulseInterval;
     animationGroup.repeatCount = self.repeatCount;
@@ -187,12 +179,19 @@ - (void)_setupAnimationGroup {
     self.animationGroup.delegate = self;
 }
 
+- (void)_resume {
+    [self addSublayer:self.effect];
+    [self.prevSuperlayer insertSublayer:self atIndex:self.prevLayerIndex];
+    if (self.prevAnimation) {
+        [self.effect addAnimation:self.prevAnimation forKey:@"pulse"];
+    }
+}
+
 
 // =============================================================================
 #pragma mark - CAAnimationDelegate
 
 - (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag {
-
     if ([self.effect.animationKeys count]) {
         [self.effect removeAllAnimations];
     }