五
5.2.1 定义一个Shape类
class Shape{
var name : String?
var sides : Int?
var origin : CGPoint?
var lineColor : UIColor= UIColor.red
var fillColor : UIColor=UIColor.green
var lineWidth : CGPLoat=2
init(name : String, sides:Int,origin: CGPoint){
self.naem=name
self.sides=sides
self.origin=origin
}
func sayHello(){
print("Shape is \(name!),sides \(sides!),and originCord is (\origin!.x),\(origin!.y)")
}
}
5.2.2 实例化Shape类
class Shape{
var name : String?
var sides : Int?
var origin : CGPoint?
var lineColor : UIColor= UIColor.red
var fillColor : UIColor=UIColor.green
var lineWidth : CGPLoat=2
init(name : String, sides:Int,origin: CGPoint){
self.naem=name
self.sides=sides
self.origin=origin
}
func sayHello(){
print("Shape is \(name!),sides \(sides!),and originCord is (\origin!.x),\(origin!.y)")
}
}
class ViewController: UIViewController{
override func viewDidLoad(){
super.viewDidLoad()
let myShape =Shape(name:"BaseShape",sides:0, origin: CGPoint(x: 0,y:0))
myShape.sayHello()
}
}
5.2.3 重载UIView中的Draw函数
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 : CGPLoat=2
init(name : String, sides:Int,origin: CGPoint){
self.naem=name
self.sides=sides
self.origin=origin
}
func sayHello(){
print("Shape is \(name!),sides \(sides!),and originCord is (\origin!.x),\(origin!.y)")
}
}
class CzfView: UIView{
var shape : Shape?
override func draw(_rect: CGRect){
guard let s =shape else{
return
}
s.sayHello()
}
}
class ViewController: UIViewController{
override func viewDidLoad(){
super.viewDidLoad()
let myShape =Shape(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()
}
class Fivestar :Shape (
//五角星和正五边形较为类似//中心坐标
var center : CGPoint?//半径
var radius : cGFloat?//旋转的角度
var angel : GFloat?//构造器
init(name:String,origin: CGPoint,center: CGPoint, radius :CGPloat,ang
:CGFloat ){
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=centery-radius
self.init(name:"FiveStar", origin: CGPoint(x:x,y:y), center:
center, radius: radius, angel: angel)
leti-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:p1)
let angle=CGFloat.pi*4/5 for i in 1...5 {
letx=(center?.x)!- sin(CGFloat(i)*angle+xzAngle)*radiu let y=(center?.y)!-cos(CGFloat(i)*angle+xzAngle) *radius! path.addLine(to:CGPoint(x:xy:Y))
path.close()
path.lineWidth = lineWidth!
lineColor?.setStroke()
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
}
import uIkit
import Foundation import AVFoundation
class Shape {
var name : String?
var soundPlayer : AVAudioPlayer?
var soundFile :String?
var path : UIBezierPath?
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)
}
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!)")
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!
lineColor?.setStroke()
path?.stroke()
}
}
class CzfView : UIView {
private var shapes Array<Shape>=[]
override func draw( rect: CGRect){
for s in shapes {
s.drawBezierPath()
}
}
func add(shape : Shape) {
shapes.append(shape)
}
override func touchesBegan(_ touches : Set<UITouch>, with event:
UIEvent?) {
let touch:UITouch = touches.first! as UITouch
let point = touch.location(in: self)
for s in shapes {
if s.isSelected(point: point) {
s.playAudio()
self.setNeedsDisplay()
}
}
}
}
class ViewController : UIViewController {
override func viewDidLoad(){
super.viewDidLoad()
nib.
let starCenter = CGPoint(x: 180, y:180)
let star = FiveStar(center: starCenter,radius: 50, angel: 45
star.lineColor = UIColor.blue
let ovalCenter = CGPoint(x:100, y;300)
let ovalSize = CGSize(width: 100,height:60)
let ovalmCircle(center: ovalCenter, size: ovalSize)
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
let myView = CzfView(frame:CGRect(x:0,y:0,width: self.view.
frame.size width, height: self.viewframe.size.height))
myView.backgroundColor = UIColor.clear
myView.add(shape: star)
myView.add(shape:oval)
myView.add(shape:rect)
self.view.addSubview(myView)
}
}