rocket is going up

//

//  ViewController.swift

//  hustle-mode

//

//  Created by dwang on 08/11/2017.

//  Copyright ? 2017 dwang. All rights reserved.

//

import UIKit

import AVFoundation

class ViewController: UIViewController {

    @IBOutlet weak var darkBlueBG: UIImageView!

    @IBOutlet weak var powerBtn: UIButton!

    @IBOutlet weak var cloudHolder: UIView!

    @IBOutlet weak var rocket: UIImageView!

    @IBOutlet weak var hustleLbl: UILabel!

    @IBOutlet weak var onLbl: UILabel!

    var player:AVAudioPlayer!

    override func viewDidLoad() {

        super.viewDidLoad()

        let path = Bundle.main.path(forResource: "hustle-on", ofType: "mp3")!

        let url = URL(fileURLWithPath:path)

        do{

            player = try AVAudioPlayer(contentsOf: url)

            player.prepareToPlay()

        }catch let error as NSError{

            print(error.description)

        }

        // Do any additional setup after loading the view, typically from a nib.

    }

    @IBAction func powerBtnPressed(_ sender: Any) {

        cloudHolder.isHidden = false

        darkBlueBG.isHidden = true

        powerBtn.isHidden = true

        player.play()

        UIView.animate(withDuration: 2.3, animations:{

            self.rocket.frame = CGRect(x: 0, y: 20, width: 264, height: 324)

        }){(finished) in

            self.hustleLbl.isHidden = false

            self.onLbl.isHidden = false

        }

    }

}

rocket is going up

原文：http://www.cnblogs.com/systembighunter/p/7806205.html