Fixed Issue #32, and Added a new progress view.

Classes/NavigationController/UINavigationController+M13ProgressViewBar.h

@@ -36,5 +36,17 @@
 - (void)cancelProgress;
 /**Wether or not the progress bar is showing.*/
 - (BOOL)isShowingProgressBar;
+/**
+ The primary color of the progress bar if you do not want it to be the same as the UINavigationBar's tint color. If set to nil, the UINavigationBar's tint color will be used.
+ 
+ @param primaryColor The color to set.
+ */
+- (void)setPrimaryColor:(UIColor *)primaryColor;
+/**
+ The secondary color of the progress bar, if nil, the secondary color will be the barTintColor.
+ 
+ @param secondaryColor The color to set.
+ */
+- (void)setSecondaryColor:(UIColor *)secondaryColor;
 
 @end

Classes/NavigationController/UINavigationController+M13ProgressViewBar.m

@@ -17,6 +17,8 @@
 static char indeterminateKey;
 static char indeterminateLayerKey;
 static char isShowingProgressKey;
+static char primaryColorKey;
+static char secondaryColorKey;
 
 @implementation UINavigationController (M13ProgressViewBar)
 
@@ -156,6 +158,9 @@ - (void)updateProgressWithInterfaceOrientation:(UIInterfaceOrientation)interface
 	{
 		progressView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 0, 2.5)];
 		progressView.backgroundColor = self.navigationBar.tintColor;
+        if ([self getPrimaryColor]) {
+            progressView.backgroundColor = [self getPrimaryColor];
+        }
         progressView.clipsToBounds = YES;
         [self setProgressView:progressView];
 	}
@@ -243,11 +248,32 @@ - (void)drawIndeterminateWithInterfaceOrientation:(UIInterfaceOrientation)interf
         //Start the image context
         UIGraphicsBeginImageContextWithOptions(CGSizeMake(stripeWidth * 4.0, stripeWidth * 4.0), NO, [UIScreen mainScreen].scale);
         //Fill the background
+        if ([self getPrimaryColor]) {
+            [[self getPrimaryColor] setFill];
+        } else {
         [self.navigationBar.tintColor setFill];
+        }
         UIBezierPath *fillPath = [UIBezierPath bezierPathWithRect:CGRectMake(0, 0, stripeWidth * 4.0, stripeWidth * 4.0)];
         [fillPath fill];
         //Draw the stripes
-        [self.navigationBar.barTintColor setFill];
+        //Set the stripe color
+        if ([self getSecondaryColor]) {
+            [[self getSecondaryColor] setFill];
+        } else {
+            CGFloat red;
+            CGFloat green;
+            CGFloat blue;
+            CGFloat alpha;
+            [self.navigationBar.barTintColor getRed:&red green:&green blue:&blue alpha:&alpha];
+            //System set the tint color to a close to, but not non-zero value for each component. 
+            if (alpha > .05) {
+                [self.navigationBar.barTintColor setFill];
+            } else {
+                [[UIColor whiteColor] setFill];
+            }
+
+        }
+
         for (int i = 0; i < 4; i++) {
             //Create the four inital points of the fill shape
             CGPoint bottomLeft = CGPointMake(-(stripeWidth * 4.0), stripeWidth * 4.0);
@@ -423,4 +449,27 @@ - (BOOL)isShowingProgressBar
     return objc_getAssociatedObject(self, &isShowingProgressKey);
 }
 
+- (void)setPrimaryColor:(UIColor *)primaryColor
+{
+    objc_setAssociatedObject(self, &primaryColorKey, primaryColor, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
+    [self getProgressView].backgroundColor = primaryColor;
+    [self setIndeterminate:[self getIndeterminate]];
+}
+
+- (UIColor *)getPrimaryColor
+{
+    return objc_getAssociatedObject(self, &primaryColorKey);
+}
+
+- (void)setSecondaryColor:(UIColor *)secondaryColor
+{
+    objc_setAssociatedObject(self, &secondaryColorKey, secondaryColor, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
+    [self setIndeterminate:[self getIndeterminate]];
+}
+
+- (UIColor *)getSecondaryColor
+{
+    return objc_getAssociatedObject(self, &secondaryColorKey);
+}
+
 @end

Classes/ProgressViews/M13ProgressViewLetterpress.h

@@ -0,0 +1,47 @@
+//
+//  M13ProgressViewLetterpress.h
+//  M13ProgressSuite
+//
+//  Created by Brandon McQuilkin on 4/28/14.
+//  Copyright (c) 2014 Brandon McQuilkin. All rights reserved.
+//
+
+#import "M13ProgressView.h"
+
+typedef enum {
+    M13ProgressViewLetterpressPointShapeSquare,
+    M13ProgressViewLetterpressPointShapeCircle
+} M13ProgressViewLetterpressPointShape;
+
+@interface M13ProgressViewLetterpress : M13ProgressView
+/**@name Properties*/
+/**
+ The number of grid points in each direction.
+ */
+@property (nonatomic, assign) CGPoint numberOfGridPoints;
+/**
+ The shape of the grid points.
+ */
+@property (nonatomic, assign) M13ProgressViewLetterpressPointShape pointShape;
+/**
+ The amount of space between the grid points.
+ */
+@property (nonatomic, assign) CGFloat pointSpacing;
+/**
+ The size of the notch to carve out on one side.
+ */
+@property (nonatomic, assign) CGSize notchSize;
+/**
+ The spring constant that defines the amount of "spring" the progress view has in its animation.
+ */
+@property (nonatomic, assign) CGFloat springConstant;
+/**
+ The constant that determines how long the progress view "bounces" for.
+ */
+@property (nonatomic, assign) CGFloat dampingCoefficient;
+/**
+ The constant that determines how much the springConstant and dampingCoefficent affect the animation.
+ */
+@property (nonatomic, assign) CGFloat mass;
+
+@end