diff --git a/SSPullToRefresh/SSPullToRefreshDefaultContentView.m b/SSPullToRefresh/SSPullToRefreshDefaultContentView.m
index c29c957..6112c3b 100644
--- a/SSPullToRefresh/SSPullToRefreshDefaultContentView.m
+++ b/SSPullToRefresh/SSPullToRefreshDefaultContentView.m
@@ -20,24 +20,24 @@ - (id)initWithFrame:(CGRect)frame {
 	if ((self = [super initWithFrame:frame])) {
 		CGFloat width = self.bounds.size.width;
 
-		_statusLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0f, 14.0f, width, 20.0f)];
+		_statusLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 14.0, width, 20.0)];
 		_statusLabel.autoresizingMask = UIViewAutoresizingFlexibleWidth;
-		_statusLabel.font = [UIFont boldSystemFontOfSize:14.0f];
+		_statusLabel.font = [UIFont boldSystemFontOfSize:14.0];
 		_statusLabel.textColor = [UIColor blackColor];
 		_statusLabel.backgroundColor = [UIColor clearColor];
 		_statusLabel.textAlignment = NSTextAlignmentCenter;
 		[self addSubview:_statusLabel];
 
-		_lastUpdatedAtLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0f, 34.0f, width, 20.0f)];
+		_lastUpdatedAtLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 34.0, width, 20.0)];
 		_lastUpdatedAtLabel.autoresizingMask = UIViewAutoresizingFlexibleWidth;
-		_lastUpdatedAtLabel.font = [UIFont systemFontOfSize:12.0f];
+		_lastUpdatedAtLabel.font = [UIFont systemFontOfSize:12.0];
 		_lastUpdatedAtLabel.textColor = [UIColor lightGrayColor];
 		_lastUpdatedAtLabel.backgroundColor = [UIColor clearColor];
 		_lastUpdatedAtLabel.textAlignment = NSTextAlignmentCenter;
 		[self addSubview:_lastUpdatedAtLabel];
 
         _activityIndicatorView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
-		_activityIndicatorView.frame = CGRectMake(30.0f, 25.0f, 20.0f, 20.0f);
+		_activityIndicatorView.frame = CGRectMake(30.0, 25.0, 20.0, 20.0);
 		[self addSubview:_activityIndicatorView];
 	}
 	return self;
diff --git a/SSPullToRefresh/SSPullToRefreshSimpleContentView.m b/SSPullToRefresh/SSPullToRefreshSimpleContentView.m
index 930ef2b..cafbfb9 100644
--- a/SSPullToRefresh/SSPullToRefreshSimpleContentView.m
+++ b/SSPullToRefresh/SSPullToRefreshSimpleContentView.m
@@ -20,16 +20,16 @@ - (id)initWithFrame:(CGRect)frame {
 	if ((self = [super initWithFrame:frame])) {
 		CGFloat width = self.bounds.size.width;
 
-		_statusLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0f, 14.0f, width, 20.0f)];
+		_statusLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 14.0, width, 20.0)];
 		_statusLabel.autoresizingMask = UIViewAutoresizingFlexibleWidth;
-		_statusLabel.font = [UIFont boldSystemFontOfSize:14.0f];
+		_statusLabel.font = [UIFont boldSystemFontOfSize:14.0];
 		_statusLabel.textColor = [UIColor blackColor];
 		_statusLabel.backgroundColor = [UIColor clearColor];
 		_statusLabel.textAlignment = NSTextAlignmentCenter;
 		[self addSubview:_statusLabel];
 
 		_activityIndicatorView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
-		_activityIndicatorView.frame = CGRectMake(30.0f, 25.0f, 20.0f, 20.0f);
+		_activityIndicatorView.frame = CGRectMake(30.0, 25.0, 20.0, 20.0);
 		[self addSubview:_activityIndicatorView];
 	}
 	return self;
@@ -38,8 +38,8 @@ - (id)initWithFrame:(CGRect)frame {
 
 - (void)layoutSubviews {
 	CGSize size = self.bounds.size;
-	self.statusLabel.frame = CGRectMake(20.0f, roundf((size.height - 30.0f) / 2.0f), size.width - 40.0f, 30.0f);
-	self.activityIndicatorView.frame = CGRectMake(roundf((size.width - 20.0f) / 2.0f), roundf((size.height - 20.0f) / 2.0f), 20.0f, 20.0f);
+	self.statusLabel.frame = CGRectMake(20.0, round((size.height - 30.0) / 2.0), size.width - 40.0, 30.0);
+	self.activityIndicatorView.frame = CGRectMake(round((size.width - 20.0) / 2.0), round((size.height - 20.0) / 2.0), 20.0, 20.0);
 }
 
 
@@ -50,28 +50,28 @@ - (void)setState:(SSPullToRefreshViewState)state withPullToRefreshView:(SSPullTo
 		case SSPullToRefreshViewStateReady: {
 			self.statusLabel.text = NSLocalizedString(@"Release to refresh", nil);
 			[self.activityIndicatorView startAnimating];
-			self.activityIndicatorView.alpha = 0.0f;
+			self.activityIndicatorView.alpha = 0.0;
 			break;
 		}
 
 		case SSPullToRefreshViewStateNormal: {
 			self.statusLabel.text = NSLocalizedString(@"Pull down to refresh", nil);
-			self.statusLabel.alpha = 1.0f;
+			self.statusLabel.alpha = 1.0;
 			[self.activityIndicatorView stopAnimating];
-			self.activityIndicatorView.alpha = 0.0f;
+			self.activityIndicatorView.alpha = 0.0;
 			break;
 		}
 
 		case SSPullToRefreshViewStateLoading: {
-			self.statusLabel.alpha = 0.0f;
+			self.statusLabel.alpha = 0.0;
 			[self.activityIndicatorView startAnimating];
-			self.activityIndicatorView.alpha = 1.0f;
+			self.activityIndicatorView.alpha = 1.0;
 			break;
 		}
 
 		case SSPullToRefreshViewStateClosing: {
 			self.statusLabel.text = nil;
-			self.activityIndicatorView.alpha = 0.0f;
+			self.activityIndicatorView.alpha = 0.0;
 			break;
 		}
 	}
diff --git a/SSPullToRefresh/SSPullToRefreshView.h b/SSPullToRefresh/SSPullToRefreshView.h
index e874cdd..94e8449 100644
--- a/SSPullToRefresh/SSPullToRefreshView.h
+++ b/SSPullToRefresh/SSPullToRefreshView.h
@@ -156,13 +156,13 @@ typedef NS_ENUM(NSUInteger, SSPullToRefreshViewStyle) {
  animate down the pull to refresh view to show that it's loading.
  */
 - (void)startLoadingAndExpand:(BOOL)shouldExpand animated:(BOOL)animated;
-- (void)startLoadingAndExpand:(BOOL)shouldExpand animated:(BOOL)animated completion:(void(^)())block;
+- (void)startLoadingAndExpand:(BOOL)shouldExpand animated:(BOOL)animated completion:(void(^)(void))block;
 
 /**
  Call this when you finish loading.
  */
 - (void)finishLoading;
-- (void)finishLoadingAnimated:(BOOL)animated completion:(void(^)())block;
+- (void)finishLoadingAnimated:(BOOL)animated completion:(void(^)(void))block;
 
 /**
  Manually update the last updated at time. This will automatically get called when the pull to refresh view finishes laoding.
diff --git a/SSPullToRefresh/SSPullToRefreshView.m b/SSPullToRefresh/SSPullToRefreshView.m
index dd35173..24a9cb0 100644
--- a/SSPullToRefresh/SSPullToRefreshView.m
+++ b/SSPullToRefresh/SSPullToRefreshView.m
@@ -48,7 +48,7 @@ - (void)setState:(SSPullToRefreshViewState)state {
 			[delegate pullToRefreshViewDidFinishLoading:self];
 		}
 	} else if (!wasLoading && _state == SSPullToRefreshViewStateLoading) {
-		[self _setPullProgress:1.0f];
+		[self _setPullProgress:1.0];
 		if ([delegate respondsToSelector:@selector(pullToRefreshViewDidStartLoading:)]) {
 			[delegate pullToRefreshViewDidStartLoading:self];
 		}
@@ -58,7 +58,7 @@ - (void)setState:(SSPullToRefreshViewState)state {
 
 - (void)setExpanded:(BOOL)expanded {
 	_expanded = expanded;
-	[self _setContentInsetTop:expanded ? self.expandedHeight : 0.0f];
+	[self _setContentInsetTop:expanded ? self.expandedHeight : 0.0];
 }
 
 
@@ -138,7 +138,7 @@ - (void)layoutSubviews {
 	}
 
 	CGRect contentFrame;
-	contentFrame.origin.x = roundf((size.width - contentSize.width) / 2.0f);
+	contentFrame.origin.x = round((size.width - contentSize.width) / 2.0);
 	contentFrame.size = contentSize;
 	switch (self.style) {
 		case SSPullToRefreshViewStyleScrolling:
@@ -156,7 +156,7 @@ - (void)layoutSubviews {
 #pragma mark - Initializer
 
 - (id)initWithScrollView:(UIScrollView *)scrollView delegate:(id<SSPullToRefreshViewDelegate>)delegate {
-	CGRect frame = CGRectMake(0.0f, 0.0f - scrollView.bounds.size.height, scrollView.bounds.size.width,
+	CGRect frame = CGRectMake(0.0, 0.0 - scrollView.bounds.size.height, scrollView.bounds.size.width,
 							  scrollView.bounds.size.height);
 	if ((self = [super initWithFrame:frame])) {
 		for (UIView *view in self.scrollView.subviews) {
@@ -169,7 +169,7 @@ - (id)initWithScrollView:(UIScrollView *)scrollView delegate:(id<SSPullToRefresh
 		self.scrollView = scrollView;
 		self.delegate = delegate;
 		self.state = SSPullToRefreshViewStateNormal;
-		self.expandedHeight = 70.0f;
+		self.expandedHeight = 70.0;
 		self.defaultContentInset = scrollView.contentInset;
 
 		// Add to scroll view
@@ -194,7 +194,7 @@ - (void)startLoadingAndExpand:(BOOL)shouldExpand animated:(BOOL)animated {
 	[self startLoadingAndExpand:shouldExpand animated:animated completion:nil];
 }
 
-- (void)startLoadingAndExpand:(BOOL)shouldExpand animated:(BOOL)animated completion:(void(^)())block {
+- (void)startLoadingAndExpand:(BOOL)shouldExpand animated:(BOOL)animated completion:(void(^)(void))block {
 	// If we're not loading, this method has no effect
     if (self.state == SSPullToRefreshViewStateLoading) {
 		return;
@@ -209,7 +209,7 @@ - (void)finishLoading {
 	[self finishLoadingAnimated:YES completion:nil];
 }
 
-- (void)finishLoadingAnimated:(BOOL)animated completion:(void(^)())block {
+- (void)finishLoadingAnimated:(BOOL)animated completion:(void(^)(void))block {
 	// If we're not loading, this method has no effect
     if (self.state != SSPullToRefreshViewStateLoading) {
 		return;
@@ -270,8 +270,8 @@ - (void)_setContentInsetTop:(CGFloat)topInset {
 	}
 
 	// If scrollView is on top, scroll again to the top (needed for scrollViews with content > scrollView).
-	if (self.scrollView.contentOffset.y <= 0.0f) {
-		[self.scrollView scrollRectToVisible:CGRectMake(0.0f, 0.0f, 1.0f, 1.0f) animated:NO];
+	if (self.scrollView.contentOffset.y <= 0.0) {
+		[self.scrollView scrollRectToVisible:CGRectMake(0.0, 0.0, 1.0, 1.0) animated:NO];
 	}
 
 	// Tell the delegate
@@ -335,7 +335,7 @@ - (void)_setPullProgress:(CGFloat)pullProgress {
 	}
 
 	// Ensure the value is between 0 and 1 (or higher if they keep pulling)
-	pullProgress = fmaxf(0.0f, pullProgress);
+	pullProgress = fmax(0.0, pullProgress);
 
 	// Notify the content view
 	[self.contentView setPullProgress:pullProgress];
@@ -372,7 +372,7 @@ - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(N
 			[self _setPullProgress:-y / self.expandedHeight];
 			
 			// Dragged enough to refresh
-			if (y > -self.expandedHeight && y < 0.0f) {
+			if (y > -self.expandedHeight && y < 0.0) {
 				self.state = SSPullToRefreshViewStateNormal;
 			}
 		// Scroll view is normal
@@ -386,7 +386,7 @@ - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(N
 			}
 		// Scroll view is loading
 		} else if (self.state == SSPullToRefreshViewStateLoading) {
-            CGFloat insetAdjustment = y < 0 ? fmaxf(0, self.expandedHeight + y) : self.expandedHeight;
+            CGFloat insetAdjustment = y < 0 ? fmax(0, self.expandedHeight + y) : self.expandedHeight;
 			[self _setContentInsetTop:self.expandedHeight - insetAdjustment];
 		}
 		return;