Add some custom function

Example/GBKUIButtonProgressViewExample/GBKUIButtonProgressViewExample/ViewController.m

@@ -26,6 +26,9 @@ - (void)viewDidLoad {
     [self.downloadButton addTarget:self action:@selector(downloadButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
     self.downloadButton.initialTitle = @"Download";
     self.downloadButton.completeTitle = @"Open";
+
+//    [self.downloadButton setProgressWithCustomColor:[UIColor redColor]];
+//    [self.downloadButton setViewWithCustomAttributeDictionary:@{GBKBorderColorAttributeName:[UIColor orangeColor]}];
 }
 
 -(void)downloadButtonPressed:(id)sender {

GBKUIButtonProgressView/GBKUIButtonProgressView.h

@@ -8,6 +8,9 @@
 
 #import <UIKit/UIKit.h>
 
+static NSString * const GBKBorderColorAttributeName = @"GBKBorderColorAttributeName";
+static NSString * const GBKProgessColorAttributeName = @"GBKProgessColorAttributeName";
+
 @interface GBKUIButtonProgressView : UIView
 
 @property (strong, nonatomic) NSString *completeTitle;
@@ -25,5 +28,7 @@
 - (void)setProgress:(CGFloat)progress animated:(BOOL)animated withCompletion:(void(^)())completion;
 - (void)addTarget:(id)target action:(SEL)action forControlEvents:(UIControlEvents)controlEvents;
 
-
+//custom
+- (void)setViewWithCustomAttributeDictionary:(NSDictionary *)dict;
+- (void)setProgressWithCustomColor:(UIColor *)progressColor;
 @end

GBKUIButtonProgressView/GBKUIButtonProgressView.m

@@ -31,6 +31,7 @@ @interface GBKUIButtonProgressView()
 @property (strong, nonatomic) CAShapeLayer *arc;
 
 @property (nonatomic) float expandDuration;
+@property (strong,nonatomic) UIColor *progressColor;	
 
 // initial -> shrinking -> progressing -> expanding -> completed
 @property (assign, nonatomic) GBKUIButtonProgressState state;
@@ -180,7 +181,7 @@ - (void) createArcView {
     UIBezierPath *path = [UIBezierPath bezierPathWithArcCenter:self.arcContainer.center radius:radius-0.5 startAngle:DEGREES_TO_RADIANS(270) endAngle:DEGREES_TO_RADIANS(269) clockwise:YES];
     self.arc.path = path.CGPath;
     self.arc.fillColor = [UIColor clearColor].CGColor;
-    self.arc.strokeColor = self.tintColor.CGColor;
+    self.arc.strokeColor = self.progressColor.CGColor;
     self.arc.lineWidth = strokeWidth;
 
     self.arc.strokeStart = 0;
@@ -367,6 +368,14 @@ -(BOOL)isComplete {
     return self.state == GBKUIButtonProgressCompleted || self.state == GBKUIButtonProgressExpandingToComplete;
 }
 
+-(UIColor *)progressColor{
+
+    if (_progressColor) {
+        return _progressColor;
+    }
+    return self.tintColor;
+}
+
 #pragma mark - Event Handling Notifications
 
 - (IBAction)eventTouchUp:(id)sender {
@@ -391,4 +400,18 @@ - (void)animateTouchDown {
     [GBKUIButtonAnimations applyTouchDownAnimationForView:self];
 }
 
+#pragma mark - Custom Methods
+
+- (void)setViewWithCustomAttributeDictionary:(NSDictionary *)dict{
+
+    if (dict[GBKBorderColorAttributeName]) {
+        UIColor *borderColor = dict[GBKBorderColorAttributeName];
+        self.borderView.layer.borderColor = borderColor.CGColor;
+    }
+}
+
+
+- (void)setProgressWithCustomColor:(UIColor *)progressColor{
+    self.progressColor = progressColor;
+}
 @end