Adding Swift Package Manager support

Package.swift

@@ -0,0 +1,16 @@
+// swift-tools-version:5.0
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+import PackageDescription
+
+let package = Package(
+    name: "SoundWave",    
+    platforms: [
+      .iOS(.v10)
+    ],
+    products: [        
+        .library(name: "SoundWave", targets: ["SoundWave"]),
+    ],
+    targets: [     
+        .target(name: "SoundWave", path: "SoundWave/Classes"),
+    ]
+)

README.md

@@ -46,6 +46,12 @@ github "bastienFalcou/SoundWave"
 
 Run `$ carthage update` to build the framework and drag the built `SoundWave.framework` into your Xcode project.
 
+### Swift Package Manager
+
+[Swift Package Manager](https://swift.org/package-manager/) is a tool for managing the distribution of Swift code.
+
+In Xcode choose File | Swift Packages | Add package depedency and enter https://github.com/bastienFalcou/SoundWave.
+
 ## Usage
 
 Check out the demo app for an example. It contains the following demos: record sound and display metering levels on the fly, play sound afterwards, resize view, change colors and multiple other properties.

SoundWave/Classes/AudioVisualizationView.swift

@@ -8,7 +8,7 @@
 import AVFoundation
 import UIKit
 
-public class AudioVisualizationView: BaseNibView {
+public class AudioVisualizationView: UIView {
 	public enum AudioVisualizationMode {
 		case read
 		case write
@@ -62,6 +62,8 @@ public class AudioVisualizationView: BaseNibView {
 
 	private var playChronometer: Chronometer?
 
+    private let traversalView = UIView()
+
 	public var meteringLevels: [Float]? {
 		didSet {
 			if let meteringLevels = self.meteringLevels {
@@ -92,12 +94,28 @@ public class AudioVisualizationView: BaseNibView {
 
 	override public init(frame: CGRect) {
 		super.init(frame: frame)
+
+        setup()
 	}
 
 	required public init?(coder aDecoder: NSCoder) {
 		super.init(coder: aDecoder)
+
+        setup()
 	}
 
+    private func setup() {
+        traversalView.translatesAutoresizingMaskIntoConstraints = false
+        addSubview(traversalView)
+
+        NSLayoutConstraint.activate([
+            traversalView.heightAnchor.constraint(equalToConstant: 1),
+            traversalView.leadingAnchor.constraint(equalTo: leadingAnchor),
+            traversalView.trailingAnchor.constraint(equalTo: trailingAnchor),
+            traversalView.centerYAnchor.constraint(equalTo: centerYAnchor)
+        ])
+    }
+
 	override public func draw(_ rect: CGRect) {
 		super.draw(rect)