BFRecordScreenKit/Example/BFRecordScreenKit/VideoExportController.swift

//
//  VideoExportController.swift
//  BFRecordScreenKit_Example
//
//  Created by 胡志强 on 2021/11/25.
//  Copyright © 2021 CocoaPods. All rights reserved.
//

import Foundation
import BFRecordScreenKit
import BFUIKit
import UIKit
import AVFoundation

class VideoExportController: BFBaseViewController{
    
    var videoAsset : AVURLAsset?
    
    lazy var progressView : UIView = {
        let v = UIView(frame: CGRect(x: 0, y: navHeadImageView!.bottomY, width: 0, height: 10))
        v.backgroundColor = .red
        return v
    }()
    
    lazy var progressL : UILabel = {
        let la = UILabel(frame: CGRect(x: 0, y: navHeadImageView!.bottomY, width: cScreenWidth, height: 10))
        la.textColor = .white
        la.textAlignment = .center
        la.text = "0%"
        la.font = UIFont.systemFont(ofSize: 8)
        return la
    }()
    
    lazy var export : BFRecordExport = {
        let export = BFRecordExport()
        
        export.progress = {[weak self] progress in
            self?.progressView.frame = CGRect(x: 0, y: self?.navHeadImageView?.bottomY ?? 0, width: (cScreenWidth) * CGFloat(progress), height: 10)
            self?.progressL.text = String(format: "%d%%", Int(progress*100))
        }
        export.exportCompletion = {[weak self] (error, url) in
            guard let strongSelf = self else {
                return
            }
            
            if let fileUrl = url {
                DispatchQueue.main.async {
                    let item = AVPlayerItem(url: fileUrl)
                    let avplayer = AVPlayer(playerItem: item)
                    let playerLayer = AVPlayerLayer(player: avplayer)
                    playerLayer.frame = CGRect(x: 10, y: strongSelf.progressView.bottomY, width: cScreenWidth - 20, height: cScreenHeigth - strongSelf.progressView.bottomY - 10)
                    strongSelf.view.layer.addSublayer(playerLayer)
                    avplayer.play()
                }
            }
        }
        return export
    }()
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        showNavigation()
    }
    
    override func backBtnClick() {
        export.cancelExport()
        super.backBtnClick()
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        view.backgroundColor = .black
        navHeadImageView?.backgroundColor = .black
        leftButton(image: nil, imageName: nil, tintColor: UIColor.white)
        
        let backV = UIView(frame: CGRect(x: 0, y: navHeadImageView!.bottomY, width: cScreenWidth, height: 10))
        backV.backgroundColor = .gray
        view.addSubview(backV)
        view.addSubview(progressView)
        view.addSubview(progressL)

        export.startExprot()
    }
}