Adds customisation for button: corner radius, border color, border width

Source/UIScrollView+EmptyDataSet.h

@@ -88,7 +88,7 @@ NS_ASSUME_NONNULL_BEGIN
  *
  *  @return image animation
  */
-- (nullable CAAnimation *)imageAnimationForEmptyDataSet:(UIScrollView *)scrollView;
+- (nullable CAAnimation *) imageAnimationForEmptyDataSet:(UIScrollView *) scrollView;
 
 /**
  Asks the data source for the title to be used for the specified button state.
@@ -155,6 +155,30 @@ NS_ASSUME_NONNULL_BEGIN
  */
 - (CGFloat)spaceHeightForEmptyDataSet:(UIScrollView *)scrollView;
 
+/**
+ Asks the data source for the button's border width. Default is 0.
+
+ @param scrollView A scrollView subclass object informing the delegate.
+ @return The button's border width.
+ */
+- (CGFloat)buttonBorderWidthForEmptyDataSet:(UIScrollView *)scrollView;
+
+/**
+ Asks the data source for the color of the border. Default is clear.
+
+ @param scrollView A scrollView subclass object informing the delegate.
+ @return The button's border color.
+ */
+- (CGColorRef)buttonBorderColorForEmptyDataSet:(UIScrollView *)scrollView;
+
+/**
+ Asks the data source for the corner radius of the button. Default is 0.
+
+ @param scrollView A scrollView subclass object informing the delegate.
+ @return The button's corner radius.
+ */
+- (CGFloat)buttonBorderCornerRadiusForEmptyDataSet:(UIScrollView *)scrollView;
+
 @end
 
 
@@ -281,3 +305,4 @@ NS_ASSUME_NONNULL_BEGIN
 #undef DZNEmptyDataSetDeprecated
 
 NS_ASSUME_NONNULL_END
+

Source/UIScrollView+EmptyDataSet.m

@@ -245,6 +245,33 @@ - (UIImage *)dzn_buttonBackgroundImageForState:(UIControlState)state
     return nil;
 }
 
+- (CGFloat)dzn_buttonBorderWidth {
+    CGFloat width = 0.0;
+
+    if (self.emptyDataSetSource && [self.emptyDataSetSource respondsToSelector:@selector(buttonBorderWidthForEmptyDataSet:)])
+        width = [self.emptyDataSetSource buttonBorderWidthForEmptyDataSet:self];
+
+    return width;
+}
+
+- (CGColorRef)dzn_buttonBorderColor {
+    CGColorRef color = [UIColor clearColor].CGColor;
+
+    if (self.emptyDataSetSource && [self.emptyDataSetSource respondsToSelector:@selector(buttonBorderColorForEmptyDataSet:)])
+        color = [self.emptyDataSetSource buttonBorderColorForEmptyDataSet:self];
+
+    return color;
+}
+
+- (CGFloat)dzn_buttonCornerRadius {
+    CGFloat radius = 0.0;
+
+    if (self.emptyDataSetSource && [self.emptyDataSetSource respondsToSelector:@selector(buttonBorderCornerRadiusForEmptyDataSet:)])
+        radius = [self.emptyDataSetSource buttonBorderCornerRadiusForEmptyDataSet:self];
+
+    return radius;
+}
+
 - (UIColor *)dzn_dataSetBackgroundColor
 {
     if (self.emptyDataSetSource && [self.emptyDataSetSource respondsToSelector:@selector(backgroundColorForEmptyDataSet:)]) {
@@ -513,6 +540,30 @@ - (void)dzn_reloadEmptyDataSet
                 [view.button setAttributedTitle:[self dzn_buttonTitleForState:UIControlStateHighlighted] forState:UIControlStateHighlighted];
                 [view.button setBackgroundImage:[self dzn_buttonBackgroundImageForState:UIControlStateNormal] forState:UIControlStateNormal];
                 [view.button setBackgroundImage:[self dzn_buttonBackgroundImageForState:UIControlStateHighlighted] forState:UIControlStateHighlighted];
+
+                view.button.layer.masksToBounds = YES;
+                [view.button sizeToFit];
+
+                [view.button addConstraint:[NSLayoutConstraint constraintWithItem:view.button
+                                                                        attribute:NSLayoutAttributeWidth
+                                                                        relatedBy:NSLayoutRelationEqual
+                                                                           toItem:nil
+                                                                        attribute:NSLayoutAttributeNotAnAttribute
+                                                                       multiplier:1
+                                                                         constant:view.button.frame.size.width + 60]];
+
+                [view.contentView addConstraint:[NSLayoutConstraint constraintWithItem:view.button
+                                                                             attribute:NSLayoutAttributeCenterX
+                                                                             relatedBy:NSLayoutRelationEqual
+                                                                                toItem:view.contentView
+                                                                             attribute:NSLayoutAttributeCenterX
+                                                                            multiplier:1
+                                                                              constant:0]];
+
+                view.button.layer.borderWidth = [self dzn_buttonBorderWidth];
+                view.button.layer.borderColor = [self dzn_buttonBorderColor];
+                view.button.layer.cornerRadius = [self dzn_buttonCornerRadius];
+                view.button.tintColor = [UIColor colorWithCGColor:[self dzn_buttonBorderColor]];
             }
         }