Issue 71:

Feature request: Shadow support for handles
TomThorpe · Dec 4, 2018 · 2658bfb · 2658bfb
1 parent 9049257
commit 2658bfb
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Showing 3 changed files with 56 additions and 0 deletions.
diff --git a/Example/RangeSliderDemo/ViewController.m b/Example/RangeSliderDemo/ViewController.m
@@ -29,6 +29,10 @@ - (void)viewDidLoad {
     self.rangeSlider.maxValue = 200;
     self.rangeSlider.selectedMinimum = 50;
     self.rangeSlider.selectedMaximum = 150;
+
+    self.rangeSlider.shadowRadius = 2;
+    self.rangeSlider.shadowOpacity = 0.75;
+
     [self.rangeSlider addTarget:self action:@selector(logControlEvent:) forControlEvents:UIControlEventValueChanged];
 
     //currency range slider
@@ -58,6 +62,10 @@ - (void)viewDidLoad {
     NSNumberFormatter *customFormatter = [[NSNumberFormatter alloc] init];
     customFormatter.positiveSuffix = @"B";
     self.rangeSliderCustom.numberFormatterOverride = customFormatter;
+
+    self.rangeSliderCustom.shadowRadius = 3;
+    self.rangeSliderCustom.shadowOpacity = 0.5;
+
 }
 
 - (void)didReceiveMemoryWarning {

diff --git a/Pod/Classes/TTRangeSlider.h b/Pod/Classes/TTRangeSlider.h
@@ -193,4 +193,15 @@ typedef NS_ENUM(NSInteger, LabelPosition) {
  */
 @property (nonatomic, assign) LabelPosition labelPosition;
 
+/**
+ *Set radius of the shadow for handle. Also used for setting shadow offset value
+ */
+
+@property (nonatomic, assign) IBInspectable CGFloat shadowRadius;
+
+/**
+ *Set the opacity of the shadow for handle
+ */
+@property (nonatomic, assign) IBInspectable float shadowOpacity;
+
 @end
diff --git a/Pod/Classes/TTRangeSlider.m b/Pod/Classes/TTRangeSlider.m
@@ -692,6 +692,43 @@ -(void)setBarSidePadding:(CGFloat)barSidePadding {
     [self updateLabelPositions];
 }
 
+- (void)setShadowRadius:(CGFloat)shadowRadius {
+    _shadowRadius = shadowRadius;
+    _shadowOpacity = 1.0;
+
+    [self.leftHandle removeFromSuperlayer];
+
+    self.leftHandle.shadowOffset = CGSizeMake(0.0, self.shadowRadius);
+    self.leftHandle.shadowRadius = self.shadowRadius;
+    self.leftHandle.shadowColor = self.tintColor.CGColor;
+
+    [self.layer addSublayer:self.rightHandle];
+
+    self.rightHandle.shadowOffset = CGSizeMake(0.0, _shadowRadius);
+    self.rightHandle.shadowRadius = _shadowRadius;
+    self.rightHandle.shadowColor = self.tintColor.CGColor;
+
+    [self.layer addSublayer:self.rightHandle];
+}
+
+- (void)setShadowOpacity:(float)shadowOpacity {
+    _shadowOpacity = shadowOpacity;
+
+    [self.leftHandle removeFromSuperlayer];
+
+    self.leftHandle.shadowOffset = CGSizeMake(0.0, self.shadowRadius);
+    self.leftHandle.shadowOpacity = self.shadowOpacity;
+    self.leftHandle.shadowColor = self.tintColor.CGColor;
+
+    [self.layer addSublayer:self.rightHandle];
+
+    self.rightHandle.shadowOffset = CGSizeMake(0.0, _shadowRadius);
+    self.rightHandle.shadowOpacity = _shadowOpacity;
+    self.rightHandle.shadowColor = self.tintColor.CGColor;
+
+    [self.layer addSublayer:self.rightHandle];
+}
+
 #pragma mark - UIAccessibility
 
 - (BOOL)isAccessibilityElement