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【Swift】AVPlayerの再生と一時停止を切り替える

Last updated at Posted at 2021-11-03

Swiftで導入したAVPlayerの再生と一時停止を切り替える方法。

今回はUIButtonで再生と一時停止を切り替える方法を書きます。

実装コード

モジュールを導入

import UIKit
import AVFoundation

変数・定数の定義

var videoPlayer: AVPlayer!

enum AVStatus {
    case playing
    case stoped
}
var av_status : AVStatus = .stoped

let switchbutton = UIButton()

AVPlayerの設定

guard let path = Bundle.main.path(forResource: "sample", ofType: "mp4") else {
    fatalError("動画が見つかりませんでした")
}
let fileURL = URL(fileURLWithPath: path)
let avAsset = AVURLAsset(url: fileURL)
let playerItem: AVPlayerItem = AVPlayerItem(asset: avAsset)

// AVPlayerの作成
videoPlayer = AVPlayer(playerItem: playerItem)

// AVPlayerを追加
let layer = AVPlayerLayer()
layer.videoGravity = AVLayerVideoGravity.resizeAspect
layer.player = videoPlayer
layer.frame = view.bounds
view.layer.addSublayer(layer)

再生・一時停止ボタンの設置

switchbutton.backgroundColor = UIColor.black
switchbutton.setTitle("再生する", for: UIControl.State.normal)
switchbutton.addTarget(self, action: #selector(onButtonTapped), for: UIControl.Event.touchUpInside)
view.addSubview(switchbutton)

*位置やサイズはお好みで設定してください。

ボタンタップの処理

@objc func onButtonTapped(){
    
    if av_status == .playing{
        switchbutton.setTitle("一時停止", for: UIControl.State.normal)
        videoPlayer.pause()
        av_status = .stoped
    }
    else{
        switchbutton.setTitle("再生中", for: UIControl.State.normal)
        videoPlayer.play()
        av_status = .playing
    }
}

参考

Swiftのお役立ち情報

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