紙娃娃練習App
範例使用UI元件：ImageView、segment control。
按下segment control觸發action以更換選擇的部位outlet圖片。
程式碼如下：
import UIKit
// 音樂效果套件
import AVFoundation
class paperDollViewController: UIViewController {
@IBOutlet weak var hairImageView: UIImageView!
@IBOutlet weak var faceImageView: UIImageView!
@IBOutlet weak var clothImageView: UIImageView!
@IBOutlet var changeSegments:[UISegmentedControl]!
//AVPlayerLooper 重複播放
var looper:AVPlayerLooper?
override func viewDidLoad() {
super.viewDidLoad()
// AVPlayerLooper 重複播放
if let url = Bundle.main.url(forResource: “赤心無疆”, withExtension: “mp3”)
{
// 生成 AVQueuePlayer 物件
let player = AVQueuePlayer()
// 利用 AVPlayerItem 生成要播放的音樂
let playerItem = AVPlayerItem(url: url)
// 生成 AVPlayerLooper，傳入剛剛生成的 player & item。到時候 AVPlayerLooper 將讓 item 重覆播放。
looper = AVPlayerLooper(player: player, templateItem: playerItem)
// 開始播放音樂(停止播放為 player.pause())
player.play()
}
}
@IBAction func changeSegment(_ sender: UISegmentedControl) {
let choiceNum = sender.selectedSegmentIndex
var imageName: String!
switch sender {
case changeSegments[0]:
switch choiceNum {
case 0:
imageName = “hair1”
case 1:
imageName = “hair2”
case 2:
imageName = “hair3”
case 3:
imageName = “hair4”
case 4:
imageName = “hair5”
case 5:
imageName = “hair6”
default: break
}
hairImageView.image = UIImage(named: imageName)
case changeSegments[1]:
switch choiceNum {
case 0:
imageName = “face1”
case 1:
imageName = “face2”
case 2:
imageName = “face3”
case 3:
imageName = “face4”
case 4:
imageName = “face5”
case 5:
imageName = “face6”
default: break
}
faceImageView.image = UIImage(named: imageName)
case changeSegments[2]:
switch choiceNum {
case 0:
imageName = “cloth1”
case 1:
imageName = “cloth2”
case 2:
imageName = “cloth3”
case 3:
imageName = “cloth4”
case 4:
imageName = “cloth5”
case 5:
imageName = “cloth6”
default: break
}
clothImageView.image = UIImage(named: imageName)
default:
break
}}}
