added background color to navigation bar progress view

Author: Ilya Velilyaev

Classes/NavigationController/UINavigationController+M13ProgressViewBar.h

@@ -50,5 +50,11 @@
  @param secondaryColor The color to set.
  */
 - (void)setSecondaryColor:(UIColor *)secondaryColor;
+/**
+ The background color of the progress bar, if nil, the background color will be the clearColor.
+ 
+ @param background The color to set.
+ */
+- (void)setBackgroundColor:(UIColor *)backgroundColor;
 
 @end

Classes/NavigationController/UINavigationController+M13ProgressViewBar.m

@@ -20,6 +20,8 @@
 static char isShowingProgressKey;
 static char primaryColorKey;
 static char secondaryColorKey;
+static char backgroundColorKey;
+static char backgroundViewKey;
 
 @implementation UINavigationController (M13ProgressViewBar)
 
@@ -91,8 +93,8 @@ - (void)animateProgress:(CADisplayLink *)displayLink
 - (void)finishProgress
 {
     UIView *progressView = [self getProgressView];
-
-    if (progressView) {
+    UIView *backgroundView = [self getBackgroundView];
+    if (progressView && backgroundView) {
         dispatch_async(dispatch_get_main_queue(), ^{
             [UIView animateWithDuration:0.1 animations:^{
                 CGRect progressFrame = progressView.frame;
@@ -101,8 +103,11 @@ - (void)finishProgress
             } completion:^(BOOL finished) {
                 [UIView animateWithDuration:0.5 animations:^{
                     progressView.alpha = 0;
+                    backgroundView.alpha = 0;
                 } completion:^(BOOL finished) {
                     [progressView removeFromSuperview];
+                    [backgroundView removeFromSuperview];
+                    backgroundView.alpha = 1;
                     progressView.alpha = 1;
                     [self setTitle:nil];
                     [self setIsShowingProgressBar:NO];
@@ -115,14 +120,18 @@ - (void)finishProgress
 - (void)cancelProgress
 {
     UIView *progressView = [self getProgressView];
-    
-    if (progressView) {
+    UIView *backgroundView = [self getBackgroundView];
+
+    if (progressView && backgroundView) {
         dispatch_async(dispatch_get_main_queue(), ^{
             [UIView animateWithDuration:0.5 animations:^{
                 progressView.alpha = 0;
+                backgroundView.alpha = 0;
             } completion:^(BOOL finished) {
                 [progressView removeFromSuperview];
+                [backgroundView removeFromSuperview];
                 progressView.alpha = 1;
+                backgroundView.alpha = 1;
                 [self setTitle:nil];
                 [self setIsShowingProgressBar:NO];
             }];
@@ -154,9 +163,11 @@ - (UIInterfaceOrientation)currentDeviceOrientation
 - (void)showProgress
 {
     UIView *progressView = [self getProgressView];
+    UIView *backgroundView = [self getBackgroundView];
 
     [UIView animateWithDuration:.1 animations:^{
         progressView.alpha = 1;
+        backgroundView.alpha = 1;
     }];
 
     [self setIsShowingProgressBar:YES];
@@ -182,6 +193,19 @@ - (void)updateProgressWithInterfaceOrientation:(UIInterfaceOrientation)interface
         [self setProgressView:progressView];
 	}
 
+    //Create background view if it doesn't exist
+    UIView *backgroundView = [self getBackgroundView];
+    if (!backgroundView)
+    {
+        backgroundView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 0, 2.5)];
+        backgroundView.backgroundColor = [UIColor clearColor];
+        if ([self getBackgroundColor]) {
+            backgroundView.backgroundColor = [self getBackgroundColor];
+        }
+        backgroundView.clipsToBounds = YES;
+        [self setBackgroundView:backgroundView];
+    }
+    
     //Calculate the frame of the navigation bar, based off the orientation.
     UIView *topView = self.topViewController.view;
     CGSize screenSize;
@@ -209,6 +233,7 @@ - (void)updateProgressWithInterfaceOrientation:(UIInterfaceOrientation)interface
 
     //Check if the progress view is in its superview and if we are showing the bar.
     if (progressView.superview == nil && [self isShowingProgressBar]) {
+        [self.navigationBar addSubview:backgroundView];
         [self.navigationBar addSubview:progressView];
     }
 
@@ -222,7 +247,7 @@ - (void)updateProgressWithInterfaceOrientation:(UIInterfaceOrientation)interface
         //Calculate the width of the progress view
         progressView.frame = CGRectMake(0, height - 2.5, width, 2.5);
     }
-    
+    backgroundView.frame = CGRectMake(0, height - 2.5, width, 2.5);
 }
 
 - (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
@@ -437,6 +462,17 @@ - (UIView *)getProgressView
     return objc_getAssociatedObject(self, &progressViewKey);
 }
 
+- (void)setBackgroundView:(UIView *)view
+{
+    objc_setAssociatedObject(self, &backgroundViewKey, view, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
+}
+
+- (UIView *)getBackgroundView
+{
+    return objc_getAssociatedObject(self, &backgroundViewKey);
+}
+
+
 - (void)setIndeterminate:(BOOL)indeterminate
 {
     objc_setAssociatedObject(self, &indeterminateKey, [NSNumber numberWithBool:indeterminate], OBJC_ASSOCIATION_RETAIN_NONATOMIC);
@@ -488,4 +524,15 @@ - (UIColor *)getSecondaryColor
     return objc_getAssociatedObject(self, &secondaryColorKey);
 }
 
+- (void)setBackgroundColor:(UIColor *)backgroundColor
+{
+    objc_setAssociatedObject(self, &backgroundColorKey, backgroundColor, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
+    [self setIndeterminate:[self getIndeterminate]];
+}
+
+- (UIColor *)getBackgroundColor
+{
+    return objc_getAssociatedObject(self, &backgroundColorKey);
+}
+
 @end

M13ProgressSuite/M13ProgressViewBarNavigationControllerViewController.m

@@ -33,6 +33,7 @@ - (void)viewDidLoad
 {
     [self.navigationController showProgress];
     [super viewDidLoad];
+    [self.navigationController setBackgroundColor:[UIColor blackColor]];
 	// Do any additional setup after loading the view.
 }