Merge pull request Jinxiansen#24 from SpRoom/master

# Added `lottery`.

Author: Jinxiansen

Example/.DS_Store

@@ -7,6 +7,8 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		36F7ED9F2465231100CF20CB /* LotteryView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 36F7ED9E2465231100CF20CB /* LotteryView.swift */; };
+		36F7EDA12465265200CF20CB /* LotteryControl.swift in Sources */ = {isa = PBXBuildFile; fileRef = 36F7EDA02465265200CF20CB /* LotteryControl.swift */; };
 		4132A45E22AD561500A8DBBE /* GroupPage.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4132A45D22AD561500A8DBBE /* GroupPage.swift */; };
 		4132A46022AD624700A8DBBE /* SectionPage.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4132A45F22AD624700A8DBBE /* SectionPage.swift */; };
 		4132A46322AD709300A8DBBE /* Color+Ext.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4132A46222AD709300A8DBBE /* Color+Ext.swift */; };
@@ -51,6 +53,8 @@
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
+		36F7ED9E2465231100CF20CB /* LotteryView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LotteryView.swift; sourceTree = "<group>"; };
+		36F7EDA02465265200CF20CB /* LotteryControl.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LotteryControl.swift; sourceTree = "<group>"; };
 		4132A45D22AD561500A8DBBE /* GroupPage.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = GroupPage.swift; sourceTree = "<group>"; };
 		4132A45F22AD624700A8DBBE /* SectionPage.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SectionPage.swift; sourceTree = "<group>"; };
 		4132A46222AD709300A8DBBE /* Color+Ext.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Color+Ext.swift"; sourceTree = "<group>"; };
@@ -107,6 +111,15 @@
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
+		36F7ED9D246522E000CF20CB /* Lottery */ = {
+			isa = PBXGroup;
+			children = (
+				36F7ED9E2465231100CF20CB /* LotteryView.swift */,
+				36F7EDA02465265200CF20CB /* LotteryControl.swift */,
+			);
+			path = Lottery;
+			sourceTree = "<group>";
+		};
 		4132A46122AD700F00A8DBBE /* Container */ = {
 			isa = PBXGroup;
 			children = (
@@ -223,6 +236,7 @@
 		4196ABE522AA24B4008B8FD2 /* Page */ = {
 			isa = PBXGroup;
 			children = (
+				36F7ED9D246522E000CF20CB /* Lottery */,
 				4160444F22B2985D0052CAFC /* SpecialPage */,
 				41FE99ED22AADF7C008135A0 /* Text */,
 				41FE99EE22AADF8E008135A0 /* Image */,
@@ -350,7 +364,9 @@
 				41E4DCD022B4B4FF00F78522 /* ActionSheetPage.swift in Sources */,
 				4196ABC822A97AB1008B8FD2 /* AppDelegate.swift in Sources */,
 				4161B33222AB6D3400CD5A1B /* ForEachPage.swift in Sources */,
+				36F7EDA12465265200CF20CB /* LotteryControl.swift in Sources */,
 				41977FF522ACA74600FD47FE /* WebImagePage.swift in Sources */,
+				36F7ED9F2465231100CF20CB /* LotteryView.swift in Sources */,
 				4196ABE722AA268A008B8FD2 /* TextFieldPage.swift in Sources */,
 				4161B32722AB68F600CD5A1B /* HStackPage.swift in Sources */,
 				D74985BC231634DA00C4D46D /* Window+Ext.swift in Sources */,

Example/Example.xcodeproj/project.pbxproj

@@ -13,6 +13,11 @@ struct ContentView : View {
     var body: some View {
         NavigationView {
             List {
+                Section(header: Text("Animation")) {
+                    NavigationLink(destination: LotteryView()) {
+                        PageRow(title: "LotteryView", subTitle: "Rotation Lottery")
+                    }
+                }
                 Section(header: Text("特殊视图")) {
                     NavigationLink(destination: WebViewPage()) {
                         PageRow(title: "WebView", subTitle: "用于展示一个打开的网页")

Example/Example/ContentView.swift

@@ -0,0 +1,23 @@
+//
+//  LotteryControl.swift
+//  Example
+//
+//  Created by xj on 2020/5/8.
+//  Copyright © 2020 晋先森. All rights reserved.
+//
+
+import Foundation
+
+class LotteryControl: ObservableObject {
+    @Published var rotation = 0.0
+    var index = 8
+    var angle: Double {
+        360 / Double(index)
+    }
+       init() {
+           print("init runed")
+           Timer.scheduledTimer(withTimeInterval: 0.1, repeats: true) { (timer) in
+               self.rotation += 30
+           }
+       }
+}

Example/Example/Page/Lottery/LotteryControl.swift

@@ -0,0 +1,36 @@
+//
+//  LotteryView.swift
+//  Example
+//
+//  Created by xj on 2020/5/8.
+//  Copyright © 2020 晋先森. All rights reserved.
+//
+
+import SwiftUI
+
+struct LotteryView: View {
+
+   @ObservedObject var control = LotteryControl()
+    
+    let colors = [Color.red, .black, .gray, .green, .blue, .orange, .yellow, .purple]
+
+    var body: some View {
+        ZStack {
+            ForEach(0..<control.index, id: \.self) { idx in
+                Path { path in
+                            path.move(to: CGPoint(x: 150, y: 150))
+                    path.addArc(center: CGPoint(x: 150, y: 150), radius: 150, startAngle: Angle(degrees: Double(idx) * self.control.angle), endAngle: Angle(degrees: Double(idx+1) * self.control.angle), clockwise: false)
+                            path.addLine(to: CGPoint(x: 150, y: 150))
+                }.fill(self.colors[idx%self.colors.count])
+            }
+        }.frame(width: 300, height: 300, alignment: .center).rotationEffect(.degrees(control.rotation))
+    }
+}
+
+struct LotteryView_Previews: PreviewProvider {
+    
+    static var previews: some View {
+        LotteryView().frame(width: 300, height: 300, alignment: .center)
+    }
+}
+