iOS开发之ReplayKit录屏

介绍

• iOS 中使用RPScreenRecorder进行专门的录屏操作。
• 开始录屏时会弹出授权对话框，录制过程中是无感的，停止录制之后可以弹出录制的预览界面，然后可以保存到相册。
• 录屏的同时可以录制麦克风的声音与摄像头的内容。
• 需要导入ReplayKit模块。

案例

import ReplayKit
import UIKit

class ViewController: UIViewController {
    // 显示摄像头
    var cameraView: UIView?

    override func viewDidLoad() {
        super.viewDidLoad()

        navigationItem.rightBarButtonItem = UIBarButtonItem(title: "开始录屏",
                                                            style: .plain,
                                                            target: self,
                                                            action: #selector(startRecording))
    }

    @objc func startRecording() {
        guard RPScreenRecorder.shared().isAvailable else { return }
        // 获取RPScreenRecorder
        let recorder = RPScreenRecorder.shared()
        // 开启麦克风
        recorder.isMicrophoneEnabled = true
        // 开启摄像头
        recorder.isCameraEnabled = true
        // 摄像头类型（前、后摄像头）
        recorder.cameraPosition = .front
        // 开始录制
        recorder.startRecording { [unowned self] error in
            if let error = error {
                print(error.localizedDescription)
            } else {
                self.navigationItem.rightBarButtonItem = UIBarButtonItem(title: "停止录屏",
                                                                         style: .plain,
                                                                         target: self,
                                                                         action: #selector(self.stopRecording))
                // 设置摄像头
                guard let cameraView = recorder.cameraPreviewView else { return }
                cameraView.frame = CGRect(x: 0, y: 0, width: 300, height: 300)
                cameraView.center = view.center
                view.addSubview(cameraView)
                self.cameraView = cameraView
            }
        }
    }

    @objc func stopRecording() {
        let recorder = RPScreenRecorder.shared()
        // 停止录制
        recorder.stopRecording { [unowned self] preview, _ in
            self.navigationItem.rightBarButtonItem = UIBarButtonItem(title: "开始录屏",
                                                                     style: .plain,
                                                                     target: self,
                                                                     action: #selector(self.startRecording))
            if let preview = preview {
                // 设置代理
                preview.previewControllerDelegate = self
                self.present(preview, animated: true)
            }
        }
        cameraView?.removeFromSuperview()
    }
}

extension ViewController: RPPreviewViewControllerDelegate {
    // MARK: 完成预览
    func previewControllerDidFinish(_ previewController: RPPreviewViewController) {
        dismiss(animated: true)
    }
}

注意：需要在真机运行测试。