DAY 26 『 AVPlayerViewController - 播放影片 』

今天要分享的是，如何用 AVPlayerViewController 显示影片

成品：
{%youtube wCKodbvifQM %}

快速介绍 AVFoundation、AVKit：

• AVFoundation：
  处理基於时间的视听媒体。
  可以轻松播放、创建和编辑 QuickTime 电影和 MPEG-4 文件，支援 HLS ( HTTP Live Streaming 媒体传输协议 )，并在应用程序中构建强大的媒体功能。

• AVKit：
  基於 AVFoundation 框架，提供播放影片内容的介面、建立媒体播放服务。
  主要包含 AVPictureInPictureController、AVPlayViewController

在 project 加入影片档

从 storyboard 设计画面

由於 AVPlayerViewController 来自 AVKit，因此必须import AVKit
此外 AVKit 基於 AVFoundation 框架，因此必须import AVFoundation

在 @IBAction 设定 AVPlayerViewController 的播放影片，因为有三个 Button ，因此用 switch 判断按到哪一个 Button 。

@IBAction func didTapButton (btn: UIButton){
    switch btn {
    case btn1:
        let player1 = AVPlayer(url: URL(fileURLWithPath: Bundle.main.path(forResource: "151", ofType: "mov")!))
        let vc1 = AVPlayerViewController()
        vc1.player = player1
        present(vc1, animated: true)
    case btn2:
        let player2 = AVPlayer(url: URL(fileURLWithPath: Bundle.main.path(forResource: "152", ofType: "mov")!))
        let vc2 = AVPlayerViewController()
        vc2.player = player2
        present(vc2, animated: true)
    default:
        let player3 = AVPlayer(url: URL(fileURLWithPath: Bundle.main.path(forResource: "swag", ofType: "mov")!))
        let vc3 = AVPlayerViewController()
        vc3.player = player3
        present(vc3, animated: true)
    }
}

forResource: "影片名称"
ofType: "档案格式"

附上完整程序码

import UIKit
import AVKit
import AVFoundation

class MainVC: UIViewController {
    
    @IBOutlet weak var btn1: UIButton!
    @IBOutlet weak var btn2: UIButton!
    @IBOutlet weak var btn3: UIButton!

    override func viewDidLoad() {
        super.viewDidLoad()
        self.navigationController?.setNavigationBarHidden(true, animated: false) // 隐藏指示条
    }

    @IBAction func didTapButton (btn: UIButton){
        switch btn {
        case btn1:
            let player1 = AVPlayer(url: URL(fileURLWithPath: Bundle.main.path(forResource: "151", ofType: "mov")!))
            let vc1 = AVPlayerViewController()
            vc1.player = player1
            present(vc1, animated: true)
        case btn2:
            let player2 = AVPlayer(url: URL(fileURLWithPath: Bundle.main.path(forResource: "152", ofType: "mov")!))
            let vc2 = AVPlayerViewController()
            vc2.player = player2
            present(vc2, animated: true)
        default:
            let player3 = AVPlayer(url: URL(fileURLWithPath: Bundle.main.path(forResource: "swag", ofType: "mov")!))
            let vc3 = AVPlayerViewController()
            vc3.player = player3
            present(vc3, animated: true)
        }
    }
}

这样就完成显示影片啦！明天会分享新的实作，敬请期待！