编辑代码

*1
ViewController.swift
GraphDemo

Created by Zhifeng Chen on 2020/8/4.
Copyright © 2020 Zhifeng Chen. All rights reserved.


import UIKit

class CoreGrapUIView : UIView {

    override func touchesBegen(_touches:Set<UITouch>,with event: UIEvent?) {
        self.backgroundColor = UIColor.ved
        print("Began:\(touches)")
    }

    override func touchesEnded(_touches: Set<UITouch>, with event: UIEvent?) {
        self.backgroundColor = UIColor.lightGray
        print("Ended:\(touches)")
    }

    override func touchesMoved(_touches: Set<UITouch>, with event: UIEvent?) {
        self.backgroundColor = UIColor.blue
        print("Moved:\(touches)")
    }
}

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
        let height = self.view.frame.size.height
        let width = self.view.frame.size.width
        let graphFrame = CGRect(x: 0, y: 0, width: width, height: height)
        let graphView = CoreGrapUIView(frame: graphFrame)
        graphView.backgroundColor = UIColor.width
        self.view.addSubview(graphView)
    }
}

*2
var myString = "Hello world!     -  swift.jsrun.net"
print(myString)
class Shape {
    var name  : String?
    var origin : CGPoint?
    var lineColor : UIColor? = UIColor.red
    var fillColor :; UIColor? = UIColor.green
    var lineWidth : CGFloat? = 5
    init(name : String, oringin : CGPoint) {
        self.name = name
        self.origin = origin
    }
    convenience init(origin : CGPoint) {
        self.init(name: "Shape Bassclass", origin: origin)
    }
    
}
class Line : Shape {
    var start : CGPoine?
    var end : CGPoint?
    init|(name: String, origin: CGPoint, start : CGPoint, end : CGPoint) {
        super.init(name: name, origin: origin)
        self.start = start
        self.end = end
    }
    convenience init(start : CGPoint, end : CGPoint)
        self.init(name: "Line",origin: start, start: start, end: end)
}
override func drawBezierPath(){
    print("Draw \(name!)")
    let path = UIBezierpath()
    path.move(to: start!)
    path.addLine(to: end!)
    path.lineWidth = lineWidth
    path.lineCapStyle = .round
    lineColor?.setStroke()
    path.stroke()
    
    }

}

矩形类
class Rectangle : Shape {
var size : cGsize?
init (name: String, origin: CGPoint , size : CGSize) {
super. init (name: name, origin: origin)
self.size = size
}
convenience init (origin: CGPoint , size : CGSize) {
self.init (name : "Rectangle", origin: origin, size: size)
}
override func drawBezierPath (){
print ( "Draw \ (name!)")
let path = UIBezierPath (rect : cGRect (origin: origin!, size: size! ))
inecolor?.setstroke ()
path. stroke ()
}
}

class Rectangle : Shape {
var size : CGSize?
var corner : CGFloat?
init (name: String, origin: CGPoint , size : CCGize , corner : CGFloat) {
   super. init (name: name, origin: origin)
   self.size = size
   self.corner = corner
}
convenience init (origin: CGPoint, size : CGSize, corner : CGFloat = 0) {
    self. init (name: "Rectangle", origin: origin, size: size, corner : corner)
    override func drawBezierPath (){
    print ("Draw \ (name !)")
    let path = UIBezierPath (roundedRect : GGRect (origin: origin!, size:
size!), cornerRadius: corner!)
path.lineWidth = lineWidth!
linecolor? . setStroke(
path.stroke ()
    }
}

圆形类
class Circle: Shape {
    var center: CGPoint?
    var raduis: CGFloat?
    var size : CGSize?
    init (name: String, origin: CGPoint, center : CGPoint, raduis : CGFloat,
size : CGSize) {
    super. init (name: name, origin: origin)
    self.center = center
    self.raduis = raduis
    self.size = size
)
convenience init (center : CGPoint, raduis : CGFloat) {
    let x = center.x - raduis
    let y = center.y - raduis
    self.init (name: "Circle", origin: CGPoint (x:x, y: y), center: center,
raduis: raduis, size: CGSize(width: raduis, height: raduis))
}
convenience init (center:CGPoint, size:CGSize) {
    let x = center.x - size.width/2
    let y = center.y - size.height/2
    self.init (name: "Oval/Ellipse", origin: CGPoint (x:x,y:Y) , center:
center, raduis: 0, size: size)
}
override func drawBezierPath() {
    print ("Draw\(name!) ")
    let path = UIBezierPath (ovalIn: cGRect (origin: origin!, size:
size!))
path.lineWidth = lineWdth!
lineColor?.setStroke()
path. stroke ()
}
}
 多辺形类 Polygons
 class Polygons : Shape {
     var points : Array<CGPoint>?

     init (name: String, origin: CGPoint, points : Array<CGPoint> ) {
         super.init (name: name, origin: origin)
         self.points = points
}
convenience init (points : Array<CGPoint> ) {
    if points.count == 3 {
        self. init (name: "Triangel", origin: points.first!, points:
points)
}
else if points.count >= 3 {
    self.init (name: "Polygons", origin: points .first!, points: points)
}
else {
    let origin = CGPoint (x: 0, y: 0)
    self.init (name: "Error", origin: origin, points: points)
}
}
override func drawBezierPath (){
    print ("Draw \(name !)")
    if (name == "Error")  {
        return
    }
let path = UIBezierPath ()
path . move (to: origin!)
for each in points! {
    path.addLine (to: each)
}
path.close ()
path .linewidth = linewidth!
lineColor? .setstroke()
path.stroke ()
path.fill ()
}
 }

 *4
 class Shape {
    var name  : String?
    var sides : Int?
    var origin : CGPoint?
    var lineColor : UIColor = UIColor.red
    var fillColor : UIColor = UIColor.green
    var lineWidth : CGFloat = 2
    init(name : String, sides : Int, origin : CGPoint) {
        self.name = name
        self.sides = sides
        self.origin = origin
    }
    func sayHello(){
        print("Shape is \(name!),sides \(sides!), and originCord is(\(origin!.x),\(origin!.y)) ")
    }
}

*5
ViewControllre.swift
ShapeDemo

Created by Zhifeng Chen on 2020/8/4.
Copyright © 2020 Zhifeng Chen.All rights reserved.


import UIKit

class Shape {
    var name  : String?
    var sides : Int?
    var origin : CGPoint?
    var lineColor : UIColor = UIColor.red
    var fillColor : UIColor = UIColor.green
    var lineWidth : CGFloat = 2
    init(name : String, sides : Int, origin : CGPoint) {
        self.name = name
        self.sides = sides
        self.origin = origin
    }
    func sayHello() {
        print("Shape is \(name!),sides \(sides!), and originCord is(\(origin!.x),\(origin!.y)) ")
    }
}

class ViewControllre: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        Do any additional setup after loading the view.
        let myShape = Shape(name:"BaseShape", sides: 0, origin: CGPoint: CGPoint(x: 0, y: 0))
        myShape.sayHello()
    }
}

*6
ViewControllre.swift
DrawMusic

Created by Zhifemg Chen on 2020/8/4.
Copyright © 2020 Zhifeng Chen. All rights reserved.


import UIKit

class Shape {
    var name  : String?
    var sides : Int?
    var origin : CGPoint?
    var lineColor : UIColor = UIColor.red
    var fillColor : UIColor = UIColor.green
    var lineWidth : CGFloat = 2
    init(name : String, sides : Int, origin : CGPoint) {
        self.name = name
        self.sides = sides
        self.origin = origin
    }
    func sayHello(){
        print("Shape:\(name!),sides \(sides!), origin (\(origin!.x),\(origin!.y)) ")
    }
}

class CzfView : UIView {
    var shape : Shape?
    override func draw(_rect: CGRect) {
        guard let s = shape else {
            retuyn
        }
        s.sayHello()
    }
}

class ViewControllre: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        Do any additional setup after loading the view, typically from a nib.
        let myShape = Sape(name:"BaseShape", sides: 0, origin: CGPoint(x: 0, y: 0))
        let width = self.view.frame.size.width
        let height = self.view.frame.size.height
        let myView = CzfView(frame: CGRect(x: 0, y: 0, width: width, height: height))
        myView.shape = myShape
        self.view.addSubview(myView)
    }
}

func drawBezierPath(){
    let path = UIBezierPath()
    let center : CGPoint = CGPoint(x: 100,y: 100)
    let radius : CGFloat = 80
    path.addArc(withCenter: center, radius: radius, startAngle: 0,endAngle: CGFloat.pi*2, clockwise: true)
    path.lineWidth = 5
    UIColor.red.setStroke()
    path.stroke()
}

*7
class Fivestar : Shape {
    var center : CGPoint?
    var radius : CGFloat?
    var angel : CGFloat?
    init (name: String, origin: CGPoint, center : CGPoint, radtus : CGFloat,angel
:CGF;loat ) {
    super.init (name: name, origin: origin)
    self.center = center
    self.radius = radius
    self.angel = angel
}
convenience init (center : CGPoint, radius : CGFloat, angel : CGFloat
= 0) {
    let x = center.x - radius
    let y = center.y - radius
    self. init (name: "Fivestar", origin: CGPoint (x:×, y:y) , center:
center, radius: radius, angel:angel)
}
override func drawBezierPath() (
    let path = UIBezierPath ()
    let i = 360/angel!
    let xzAngle = CGFloat.pi*2/i
    let xzx = (center?.x)! - sin (xzAngle) *radius!
    let x2Y = (center?.y)! - cos (xzangle) *radius!
    let pl = CGPoint (x: xzX, y: xzY)
path.move (to: p1)
let angle = CGFloat.pi*4/5
for i in 1...5 {
    let x =(center?.x)!- sin (CGFloat (i) *angle+xzAngle) *radius!
    let y = (center?.y)! - cos (CGFloat (i)*angle+xzangle) *radius!
    path.addLine (to: CGPoint(x: x, y: y))
}
path.close()
path. linewidth = linewidth!
lineColor?.setStroke()
path.stroke ()
}
}

*8
init (name: String, origin: CGPoint, center: CGPoint, radius : CGFloat, angel :CGFloat, soundFile: String = "SO.m4a") {
    super. init (name: name, origin: origin, soundFile: soundFile)
    self.center = center
    self .radius = radius
    self.angel = angel
    }

*9
import uIkit
import Foundation import AVFoundation

class Shape {

var name : String?

var soundPlayer : AVAudioPlayer?
var soundFile :String?
//UIBezierPath
var path : UIBezierPath?
//selected?
var selectedFlag : Bool= false
var origin :CGPoint?
var lineColor : UIColor? = UIColor.red
var fillcolor : UIColor? = UIColor.green
var lineWidth : CGFloat? = 5
init(name :string,origin :CGPoint,soundFile :String - “DO.m4a“ ) {
    self.name = name
    self.origin = origin
    self.soundFile = soundFile
    }
convenience init(origin :CGPoint)  {
    self.init(name: “Shape Bassclass“, origin: origin)
    }
func drawBezierPath() {
    print(“Draw \(name!)“)
}
func playAudio(){
    print("Play sound:\(soundFile!)")
    let path = Bundle.mainpath(forResource: soundfile,ofType:nil) let url=URL(fileURWithPath:path!)
    soundPlayer =try? AVAudioPlayer(contentsof: url) 
    soundPlayer?.play()
}
func isSelected(point :CGPoint) -> Bool{
    if (path?.contains(point))! {
        selectedFlag = true
         return true
         }
else {
    selectedFlag = false
     return false
}
}
}
class Line :Shape {
    var start : CGPoint?
    var end : CGPoint?
    init(name: String,origin: CGPoint,start:CGPoint,end:CGPoint,
soundFile :String-“FA.m4a“){
    super.init(name: name,origin: origin,soundfile:soundFile) 
    self.startmstart 
    self.end=end
}
convenience init(start :CGPoint,end:CGPoint)  {
    self.init(name: “Line“, origin: start, start: start, end: end)
    }
override func drawBezierPath(){
    print(“Draw\(name!)“)
    path = UIBezierPath()
    path?.move(to: start!)
    path?.addLine(to: end!)
    path?.lineWidth = linewidth!
    path?.lineCapStyle = .round
    lineColor?.setStroke()
    path?.stroke()
}
}
class Rectangle : Shape{
    var size : CGSize?
    var corner : CGFloat?
    init(name:String,origin: CGPoint, size : CGSire, Corner : 0GFloat,soundFile :
String = "LA.mda") {
    super.init(name:Name,rigingin,soundFile:soundFile) 
    self.sizewsize
    self.corner = corner
}
convenience init(origin: CGPoint,size :CGSize, corner : CGFloat - 0) {
    self.init(name:“Rectangle“,origin:origin,size: size,corner :corner)
    }
//重载drawBezierPath方法画矩形或者正方形
override func drawBezierPath(){
    print("Draw \(name!)"){
        path = UIBezierPath(roundedRect:CGRect(origin: originl, size
size!),cornerRadius: corner!)
if selectedFlag {
    let dashes:[CGFloat] = [1,3]
    path?.setLineDash(dashes,count:dashes.count, phase:0)
}
    path?.lineWidth = lineWidth!
    lineColor?.setstroke()
    path?.stroke()
    }
}
class Circle : Shape {
    var center : CGPoint?
    var raduis :CGFloat?
    var size : CGSize?

init(name:String,origin:CGPoint,center:CGPoint, raduis :CGFloat,size :
CGSize,soundFile:String=“MI.m4a“){
    super.init(name: name,origin: origin,soundFile:soundfile) 
    self.center=center 
    self.raduis = raduis 
    self.size= size
    }
convenience init(center:CGPoint,raduis:CGFloat) {
    let x = center.x - raduis
    let y = center.y - raduis
    self.init(name: “Circle“,origini CGPoint(xiXry:y), center: center,
raduis: raduis, Bize: CGSize(width; raduis, height; raduia))
}
convenience init(center : CGPoint, size : CGSize)(
    let x = center.x - size.width/2
    let y = center.y - size.height/2
    self.init(name: "Oval/Ellipse",origin: CGPoint(xix,y:y), center:
center, raduis: 0, size: size)
}
override func drawBezierPath(){
    print("Draw \(name!)")
    path=UIBezierPath(ovalIn: CGRect(origin: origin!, size: size!)) if selectedFlag {
        let dashes:[CGFloat]=[1,3]
        path?.setLineDash(dashes,count:dashes.count, phase:0)
        }
        path?.lineWidth = lineWidth!
        lineColor?.setStroke()
        path?.stroke()
        }
}
class Polygons :Shape {
    var points : Array<cgpoint>?
    init(name:String,origin:CGPoint,oints:Array<CGPoint>soundFile:String
= "RE.m4a") {
    super.init(name: name, origin: origin,soundfile: soundFile) self.points =points
convenience init(points :Array<CGPoint>){
    if points.count == 3{
        self.init(name:"Triangel", origin: points.first!, points:
points)
    }
    else if points.count >= 3 {
        self.init(name:"Polygons", origin: points.first!, points:
points)
    }
else {
    let origin =CGPoint(x: 0, y: 0)
    self.init(name:"Error",origin: origin, points: points)
    }
}
 override fune drawBezierPath(){
     print("Draw \(name!)") 
     if(name == "Error") {
         return
     }
     path = UIBezierPath()
     path?.move(to: origin!) 
     for each in points! {
         path?.addLine(to: each
         }
         path?.close()
         path?.lineWidth = lineWidth! 
         lineColor?.setStroke()
         path?.stroke() 
         path?.fill()
 }
}

class FiveStar :Shape {
    var center : CGPoint?
    var radius : CGFloat?
    var angel : CGFloat?
    init(name: String,origin: CGPoint,center:CGPoint,radius :CGFloat,angel :
CGFloat,soundFile :String="so.m4a") {
super.init(name: name, origin: origin,soundFile: soundFile) 
self.center= center 
self.radius = radius 
self.angel = angel
}
convenience init(center: CGPoint, radiun i carlont,angel : CGrloat
= 0) {
    let x = center.x - radius
    let y = center.y - radius
    selfinit(name:"FiveStar",origintCGPoint(uik,yiy), center: contei
radius: radius, angel: angel)
}
override func drawBezierPath(){
    print("Draw\(name!)")
//调用贝塞尔曲线函数UTBezierPath() 
path = UIBezierPath()
let i= 360/angel!
let xzAngle= CGFloat.pi*2/i
let xzX = (center?.x)! - sin(xzAngle)*radius! 
let xzY = (center?.y)! - cos(xzAngle)*radius! 
let p1 = CGPoint(x: xzX, y; xzY) 
path?.move(to: pl)
let angle = CGFloat.pi*4/5 
for i in 1...5 {
    let x = (center?.x)! - sin(CGFloat(i)*angle+xzAngle)*radius! 
    let y = (center?.y)! - cos(CGFloat(i)*angle+xzAngle)*radius! 
    path?.addLine(to: CGPoint(x: x,y:y))
}
path?.close()
if selectedFlag{
    let dashes:[CGFloat] = [1,3]
    path?.setLineDash(dashes,count: dashes.count, phase:0)
}
path?.lineWidth = lineWidth!
//线条颜色为 red 红色
lineColor?.setStroke()
path?.stroke()
}
}
class CzfView : UIView {
    //成员变量(属性)shapes,其类型为Array<Shape> 
    private var shapes Array<Shape>=[]
    //重载UIView的draw 方法
    override func draw( rect: CGRect){
        //调用shapes 这个数组中的每个实例的方法 
        for s in shapes {
            s.drawBezierPath()
        }
    }

//增加实例到数组shapes中 
func add(shape : Shape) {
    shapes.append(shape)
}
//触摸事件 
override func touchesBegan(_ touches : Set<UITouch>, with event:
UIEvent?)  {
    //获得UITouch集合
    let touch:UITouch = touches.first! as UITouch
    //获得触摸所在位置的坐标
    let point = touch.location(in: self)
    //调用 shapes 这个数组中的每个实例的方法 
    for s in shapes {
        //如果被选中
        if s.isSelected(point: point) {
            // 声音播放
            s.playAudio()
            //更新屏幕显示
            self.setNeedsDisplay()
        }
    }
}
}
class ViewController : UIViewController {

    override func viewDidLoad(){
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a
nib.
//此处调用FiveStar类,建立一个对象(实例)star
//五角星的中心坐标为(180,180)
let starCenter = CGPoint(x: 180, y:180)
//五角星的半径设定了 90,旋转角度为15度
let star = FiveStar(center: starCenter,radius: 50, angel: 45 
star.lineColor = UIColor.blue
//此处调用Circle 类,建立一个对象oval
let ovalCenter = CGPoint(x:100, y;300)
let ovalSize = CGSize(width: 100,height:60)
let ovalmCircle(center: ovalCenter, size: ovalSize)
//此处调用 Rectangle类,建立一个对象rect 
let rectOrigin = CGPoint(x:60,y:50)
letrectSize = GSize(width: 100,height:50) 
Let rect = Rectangle(origin:rectorigin,size:rectSize,corner:6) 
rect.lineColor = UIColorgray

//此处建立了一个Czfview的实例myview
let myView = CzfView(frame:CGRect(x:0,y:0,width: self.view.
frame.size width, height: self.viewframe.size.height))
//清除背景色
myView.backgroundColor = UIColor.clear
//赋值给myView中的成员变量(属性)shape 
myView.add(shape: star) 
myView.add(shape:oval) 
myView.add(shape:rect)
//显示myView
self.view.addSubview(myView)
    }
}