Update to Swift 4.2 and update podspec version to 4.2

HEXColor.xcodeproj/project.pbxproj

@@ -486,7 +486,7 @@
 				SKIP_INSTALL = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
@@ -509,7 +509,7 @@
 				PRODUCT_NAME = HEXColor;
 				SKIP_INSTALL = YES;
 				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};

HEXColorTests/HEXColorTests.swift

@@ -343,6 +343,22 @@ class HEXColorTests: XCTestCase {
             }
         }
     }
+
+    // MARK: - Hex string output for red/green/blue color
+    func testXX() {
+        do {
+            let redString = try UIColor.red.hexStringThrows(true)
+            XCTAssertEqual(redString, UIColor.red.hexString(true))
+
+            let greenString = try UIColor.green.hexStringThrows(false)
+            XCTAssertEqual(greenString, UIColor.green.hexString(false))
+
+            let blueString = try UIColor.blue.hexStringThrows()
+            XCTAssertEqual(blueString, UIColor.blue.hexString())
+        } catch {
+            XCTAssertTrue(false)
+        }
+    }
 }
 
 extension UIColor {

README.md

@@ -43,7 +43,7 @@ Simply add the following lines to your `Podfile`:
 # required by CocoaPods 0.36.0.rc.1 for Swift Pods
 use_frameworks! 
 
-pod 'UIColor_Hex_Swift', '~> 4.0.2'
+pod 'UIColor_Hex_Swift', '~> 4.2.0'
 ```
 
 Then import it where you use it:
@@ -58,7 +58,7 @@ import UIColor_Hex_Swift
 Simply add the following line to your `Cartfile`:
 
 ```ruby
-github "yeahdongcn/UIColor-Hex-Swift" >= 4.0.2
+github "yeahdongcn/UIColor-Hex-Swift" >= 4.2.0
 ```
 
 Then add the HexColor.framework to your frameworks list in the Xcode project.

UIColor_Hex_Swift.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "UIColor_Hex_Swift"
-  s.version      = "4.0.2"
+  s.version      = "4.2.0"
   s.summary      = "Convenience method for creating autoreleased color using RGBA hex string."
   s.homepage     = "https://github.com/yeahdongcn/UIColor-Hex-Swift"
   s.license      = { :type => 'MIT', :file => 'LICENSE' }