Add SPM Support & Dark Mode Support

Package.swift

@@ -0,0 +1,33 @@
+// swift-tools-version:5.5
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "SwiftPullToRefresh",
+    platforms: [
+        .macOS(.v10_14),
+        .iOS(.v11)
+    ],
+    products: [
+        // Products define the executables and libraries a package produces, and make them visible to other packages.
+        .library(
+            name: "SwiftPullToRefresh",
+            targets: ["SwiftPullToRefresh"]),
+    ],
+    dependencies: [
+        // Dependencies declare other packages that this package depends on.
+        // .package(url: /* package url */, from: "1.0.0"),
+    ],
+    targets: [
+        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
+        // Targets can depend on other targets in this package, and on products in packages this package depends on.
+        .target(
+            name: "SwiftPullToRefresh",
+            dependencies: []),
+        .testTarget(
+            name: "SwiftPullToRefreshTests",
+            dependencies: ["SwiftPullToRefresh"]),
+    ],
+    swiftLanguageVersions: [.v5]
+)

Sources/SwiftPullToRefresh/Extensions/UIActivityIndicatorViewStyle+Extensions.swift

@@ -0,0 +1,20 @@
+//
+//  UIActivityIndicatorViewStyle+Extensions.swift
+//  
+//
+//  Created by Brandon Stillitano on 22/12/21.
+//
+
+import Foundation
+import UIKit
+
+extension UIActivityIndicatorView.Style {
+    /// Version safe method of access `UIActivityIndicatorView.Style.medium`. On versions prior to iOS 13.0 this will return `.gray`.
+    static var systemMedium: UIActivityIndicatorView.Style {
+        if #available(iOS 13.0, *) {
+            return .medium
+        } else {
+            return .gray
+        }
+    }
+}

Sources/SwiftPullToRefresh/Extensions/UIColor+Extensions.swift

@@ -0,0 +1,20 @@
+//
+//  UIColor+Extensions.swift
+//  SwiftPullToRefresh
+//
+//  Created by Brandon Stillitano on 22/12/21.
+//  Copyright © 2021 Brandon Stillitano. All rights reserved.
+//
+
+import UIKit
+
+extension UIColor {
+    /// Version safe method of access `UIColor.label`. On versions prior to iOS 13.0 this will return `.black`.
+    static var systemLabel: UIColor {
+        if #available(iOS 13.0, *) {
+            return .label
+        } else {
+            return .black
+        }
+    }
+}

SwiftPullToRefresh/GIFHeader.swift → Sources/SwiftPullToRefresh/GIFHeader.swift

@@ -66,7 +66,7 @@ class GIFHeader: RefreshView {
 
 }
 
-protocol AnimatedImage: class {
+protocol AnimatedImage: AnyObject {
     var size: CGSize { get }
     var frameCount: Int { get }
 

SwiftPullToRefresh/GIFTextHeader.swift → Sources/SwiftPullToRefresh/GIFTextHeader.swift

@@ -15,7 +15,7 @@ class GIFTextHeader: GIFHeader {
     private lazy var label: UILabel = {
         let label = UILabel()
         label.font = UIFont.systemFont(ofSize: 14)
-        label.textColor = UIColor.black.withAlphaComponent(0.8)
+        label.textColor = UIColor.systemLabel.withAlphaComponent(0.8)
         return label
     }()
 

SwiftPullToRefresh/IndicatorView.swift → Sources/SwiftPullToRefresh/IndicatorView.swift

@@ -21,13 +21,13 @@ class IndicatorView: RefreshView {
 
         let layer = CAShapeLayer()
         layer.path = path.cgPath
-        layer.strokeColor = UIColor.black.withAlphaComponent(0.8).cgColor
+        layer.strokeColor = UIColor.systemLabel.withAlphaComponent(0.8).cgColor
         layer.lineWidth = 2
         layer.lineCap = .round
         return layer
     }()
 
-    let indicator = UIActivityIndicatorView(style: .gray)
+    let indicator = UIActivityIndicatorView(style: .systemMedium)
 
     private let isHeader: Bool
 

Sources/SwiftPullToRefresh/SwiftPullToRefresh.swift

@@ -0,0 +1,6 @@
+public struct SwiftPullToRefresh {
+    public private(set) var text = "Hello, World!"
+
+    public init() {
+    }
+}

SwiftPullToRefresh/TextAutoFooter.swift → Sources/SwiftPullToRefresh/TextAutoFooter.swift

@@ -15,7 +15,7 @@ class TextAutoFooter: IndicatorAutoFooter {
     private lazy var label: UILabel = {
         let label = UILabel()
         label.font = UIFont.systemFont(ofSize: 14)
-        label.textColor = UIColor.black.withAlphaComponent(0.8)
+        label.textColor = UIColor.systemLabel.withAlphaComponent(0.8)
         return label
     }()
 

SwiftPullToRefresh/TextView.swift → Sources/SwiftPullToRefresh/TextView.swift

@@ -15,7 +15,7 @@ class TextView: IndicatorView {
     private lazy var label: UILabel = {
         let label = UILabel()
         label.font = UIFont.systemFont(ofSize: 14)
-        label.textColor = UIColor.black.withAlphaComponent(0.8)
+        label.textColor = UIColor.systemLabel.withAlphaComponent(0.8)
         return label
     }()
 

SwiftPullToRefresh.podspec

@@ -1,15 +1,16 @@
 Pod::Spec.new do |s|
   s.name         = "SwiftPullToRefresh"
-  s.version      = "3.1.1"
+  s.version      = "3.1.2"
   s.summary      = "An easy way to implement pull-to-refresh feature based on UIScrollView extension, written in Swift 5."
   s.description  = <<-DESC
                     An easy way to implement pull-to-refresh feature based on UIScrollView extension, written in Swift 5. Provide default style header and footer controls which you can directly use in your project, and also support for customization. GIF is also supported.
                    DESC
+
   s.homepage     = "https://github.com/WXGBridgeQ/SwiftPullToRefresh"
   s.license      = "MIT"
   s.author       = { "Leo Zhou" => "[email protected]" }
   s.platform     = :ios, "8.0"
   s.swift_version = "5.0"
   s.source       = { :git => "https://github.com/WXGBridgeQ/SwiftPullToRefresh.git", :tag => "#{s.version}" }
-  s.source_files = "SwiftPullToRefresh/*.{swift}"
+  s.source_files = "Sources/SwiftPullToRefresh/**/*.{swift}"
 end