用程式設計國旗圖案

這次的作業是要用程式來繪製國旗，畫了以下的幾種範例：

1. 首先，先依照範例繪製了一個日本國旗：

import UIKit

var japan = CGRect (x: 0, y: 0, width:200, height:134)

let japanBackGroundView = UIView(frame: japan)

japanBackGroundView.backgroundColor = UIColor (red:255/255, green:255/255, blue:255/255, alpha:1)

japan = CGRect(x:(japanBackGroundView.frame.width — 106)/2, y: (japanBackGroundView.frame.height — 106)/2, width:106, height:106)

let japanCircleView = UIView(frame:japan)

japanCircleView.backgroundColor = UIColor(red: 1,green: 0, blue: 0, alpha: 1)

japanBackGroundView.addSubview(japanCircleView)

japanCircleView.layer.cornerRadius = 53

japanCircleView.clipsToBounds = true

japanBackGroundView

2. 再來仿照日本國旗，畫出帛琉國旗

比較不一樣的地方在於，帛琉國旗的圓圈是比較偏左邊的，所以在座標上有動了一點小調整

var palau = CGRect (x: 0, y: 0, width:400, height:250)

let palauBackGroundView = UIView(frame: palau)

palauBackGroundView.backgroundColor = UIColor (red:0, green:0.6, blue:1, alpha:1)

palau = CGRect(x: 100, y: 50, width: 150, height: 150)

let palauCircleView = UIView(frame:palau)

palauCircleView.backgroundColor = UIColor(red:1, green:1, blue:0, alpha:1)

palauBackGroundView.addSubview(palauCircleView)

palauCircleView.layer.cornerRadius = 75

palauCircleView.clipsToBounds = true

palauBackGroundView

3. 法國國旗

今年才去過法國，所以就按照Peter的範例，繪製了一個法國國旗

var france = CGRect (x:0, y:0, width:300, height:200)

let franceBarWidth = france.width/3

let franceBackgroundView = UIView(frame:france)

let freedomBlue = UIView(frame: CGRect(x:0, y:0, width:franceBarWidth, height:franceBackgroundView.frame.height))

freedomBlue.backgroundColor = UIColor(red:0, green:85/255, blue:164/255, alpha:1)

franceBackgroundView.addSubview(freedomBlue)

let equalityWhite = UIView(frame:freedomBlue.frame.offsetBy(dx:franceBarWidth, dy:0))

equalityWhite.backgroundColor = UIColor(red:1, green:1, blue:1, alpha:1)

franceBackgroundView.addSubview(equalityWhite)

let universalLoveRed = UIView(frame:equalityWhite.frame.offsetBy(dx: franceBarWidth, dy: 0))

universalLoveRed.backgroundColor = UIColor(red: 250/255, green: 60/255, blue: 50/255, alpha: 1)

franceBackgroundView.addSubview(universalLoveRed)

4. 跟法國很像，只是直的變成橫的，畫個俄羅斯國旗吧

去年才去過，是一個令人會想再去一次的國家

var russia = CGRect(x:0, y:0, width:300, height:200)

let russiaBarHeight = russia.height/3

let russiaBackgroundView = UIView(frame:russia)

let russiaWhite = UIView(frame: CGRect(x:0, y:0, width:russiaBackgroundView.frame.width, height:russiaBarHeight))

russiaWhite.backgroundColor = UIColor(red:1,green:1, blue:1, alpha:1)

russiaBackgroundView.addSubview(russiaWhite)

let russiaBlue = UIView(frame:russiaWhite.frame.offsetBy(dx:0, dy:russiaBarHeight))

russiaBlue.backgroundColor = UIColor(red:0, green:0.2784, blue:0.7294, alpha:1)

russiaBackgroundView.addSubview(russiaBlue)

let russiaRed = UIView(frame:russiaBlue.frame.offsetBy(dx: 0, dy:russiaBarHeight))

russiaRed.backgroundColor = UIColor(red:0.835, green:0.169, blue:0.118, alpha:1)

russiaBackgroundView.addSubview(russiaRed)

5. 最後，看到Peter稱讚南韓國旗很厲害，那就來畫個北韓吧

金小胖萬歲！！！

北韓國旗分成五層：

(1) 底層藍色長方形

(2) 倒數第二層白色長方形

(3) 紅色長方形

(4) 白色圓形

(5) 紅色星形

import UIKit

var northKorea = CGRect(x:0, y:0, width:200, height:100)

let northKoreaBackgroundView = UIView(frame:northKorea)

northKoreaBackgroundView.backgroundColor = UIColor(red:0.0082, green:0.3251, blue:2/3, alpha:1)

northKorea = CGRect(x:0, y:16, width:200, height:68)

let northKoreaWhiteRect = UIView(frame: northKorea)

northKoreaWhiteRect.backgroundColor = UIColor(red:1, green:1, blue:1, alpha:1)

northKoreaBackgroundView.addSubview(northKoreaWhiteRect)

northKorea = CGRect(x:0, y:20, width:200, height:60)

let northKoreaRedRect = UIView(frame: northKorea)

northKoreaRedRect.backgroundColor = UIColor(red:0.929, green:0.11, blue:0.153, alpha:1)

northKoreaBackgroundView.addSubview(northKoreaRedRect)

northKorea = CGRect(x:134/3, y:28, width:44, height:44)

let northKoreaWhiteCircle = UIView(frame:northKorea)

northKoreaWhiteCircle.backgroundColor = UIColor(red:1, green:1, blue:1, alpha:1)

northKoreaBackgroundView.addSubview(northKoreaWhiteCircle)

northKoreaWhiteCircle.layer.cornerRadius = 22

northKoreaWhiteCircle.clipsToBounds = true

northKoreaBackgroundView

let path = UIBezierPath()

path.move(to: CGPoint(x:66.67, y:28.49))

path.addLine(to: CGPoint(x:61.85, y:43.33))

path.addLine(to: CGPoint(x:46.22, y:43.376))

path.addLine(to: CGPoint(x:58.84, y:52.59))

path.addLine(to: CGPoint(x:54.028, y:67.417))

path.addLine(to: CGPoint(x:66.7, y:58.257))

path.addLine(to: CGPoint(x:79.352, y:67.437))

path.addLine(to: CGPoint(x:74.67, y:52.565))

path.addLine(to: CGPoint(x:87.134, y:43.38))

path.addLine(to: CGPoint(x:71.78, y:43.26))

path.close()

let northKoreaStarView = UIView(frame: northKoreaBackgroundView.frame)

northKoreaStarView.backgroundColor = UIColor(red:0.929, green:0.11, blue:0.153, alpha:1)

let starShapeLayer = CAShapeLayer()

starShapeLayer.path = path.cgPath

northKoreaStarView.layer.mask = starShapeLayer

northKoreaBackgroundView.addSubview(northKoreaStarView)