Merge pull request #3 from JoshHrach/DurationProperty

Added property to change rotation period
JoshHrach · Jun 2, 2020 · 9656adc · 9656adc
2 parents 48570b5 + 82e1f8f
commit 9656adc
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Showing 2 changed files with 17 additions and 11 deletions.
diff --git a/Sources/ActivityIndicatorView/ActivityIndicatorView.swift b/Sources/ActivityIndicatorView/ActivityIndicatorView.swift
@@ -5,11 +5,18 @@ import SwiftUI
  A view that shows that a task is in progress.
  */
 public struct ActivityIndicatorView: View {
+    /// Background color behind the indicator. This appears in a circle behind the activity view.
     private var backgroundColor: Color
+    /// The color of the activity indicator. This is in a gradient that fades to `.white`.
     private var foregroundColor: Color
 
+    /// Total number of dashes visible in the indicator.
     private var totalDashes = 12
 
+    /// Time to complete a single revolution. In seconds.
+    private(set) var period: Double
+
+    /// Radial offset. State property used to animate the view.
     @State private var radialOffset: Double = 0
 
     private var dashViews: some View {
@@ -29,20 +36,23 @@ public struct ActivityIndicatorView: View {
      
      - parameter backgroundColor: The background color behind the indicator. This will appear in a circle behind the view. If none is set, defaults to `.clear`.
      - parameter foregroundColor: The color of the activity indicator. If none is set, defaults to `.gray`.
+     - parameter period: How long it takes for the view to complete one complete rotation. In seconds. Defaults to `1`.
      */
-    public init(backgroundColor: Color = .clear, foregroundColor: Color = .gray) {
+    public init(backgroundColor: Color = .clear, foregroundColor: Color = .gray, period: Double = 1) {
         self.backgroundColor = backgroundColor
         self.foregroundColor = foregroundColor
+        self.period = period
     }
 
+
     public var body: some View {
         ZStack {
             Circle()
                 .fill(backgroundColor)
 
             AngularGradient(gradient: .init(colors: [.white, foregroundColor]), center: .center)
                 .rotationEffect(.degrees(radialOffset))
-                .animation(Animation.linear(duration: 1).repeatForever(autoreverses: false))
+                .animation(Animation.linear(duration: period).repeatForever(autoreverses: false))
                 .mask(self.dashViews)
         }
         .scaledToFit()

diff --git a/Tests/ActivityIndicatorViewTests/ActivityIndicatorViewTests.swift b/Tests/ActivityIndicatorViewTests/ActivityIndicatorViewTests.swift
@@ -2,14 +2,10 @@ import XCTest
 @testable import ActivityIndicatorView
 
 final class ActivityIndicatorViewTests: XCTestCase {
-    func testExample() {
-        // This is an example of a functional test case.
-        // Use XCTAssert and related functions to verify your tests produce the correct
-        // results.
-        XCTAssertEqual(ActivityIndicatorView().text, "Hello, World!")
+    func testDurationSetting() {
+        let duration: Double = 2
+        let view = ActivityIndicatorView(period: duration)
+
+        XCTAssert(view.period == duration)
     }
-
-    static var allTests = [
-        ("testExample", testExample),
-    ]
 }