124 lines
4.1 KiB
Swift
124 lines
4.1 KiB
Swift
import UIKit
|
|
import WebRTC
|
|
|
|
public protocol VideoPreviewDelegate : AnyObject {
|
|
func cameraDidConfirmTurningOn()
|
|
}
|
|
|
|
class VideoPreviewVC: UIViewController, CameraManagerDelegate {
|
|
weak var delegate: VideoPreviewDelegate?
|
|
|
|
lazy var cameraManager: CameraManager = {
|
|
let result = CameraManager()
|
|
result.delegate = self
|
|
return result
|
|
}()
|
|
|
|
// MARK: UI Components
|
|
private lazy var renderView: RenderView = {
|
|
let result = RenderView()
|
|
return result
|
|
}()
|
|
|
|
private lazy var fadeView: UIView = {
|
|
let result = UIView()
|
|
let height: CGFloat = 64
|
|
var frame = UIScreen.main.bounds
|
|
frame.size.height = height
|
|
let layer = CAGradientLayer()
|
|
layer.frame = frame
|
|
layer.colors = [ UIColor(hex: 0x000000).withAlphaComponent(0.4).cgColor, UIColor(hex: 0x000000).withAlphaComponent(0).cgColor ]
|
|
result.layer.insertSublayer(layer, at: 0)
|
|
result.set(.height, to: height)
|
|
return result
|
|
}()
|
|
|
|
private lazy var closeButton: UIButton = {
|
|
let result = UIButton(type: .custom)
|
|
let image = UIImage(named: "X")!.withTint(.white)
|
|
result.setImage(image, for: UIControl.State.normal)
|
|
result.set(.width, to: 60)
|
|
result.set(.height, to: 60)
|
|
result.addTarget(self, action: #selector(cancel), for: UIControl.Event.touchUpInside)
|
|
return result
|
|
}()
|
|
|
|
private lazy var confirmButton: UIButton = {
|
|
let result = UIButton(type: .custom)
|
|
let image = UIImage(named: "Check")!.withTint(.white)
|
|
result.setImage(image, for: UIControl.State.normal)
|
|
result.set(.width, to: 60)
|
|
result.set(.height, to: 60)
|
|
result.addTarget(self, action: #selector(confirm), for: UIControl.Event.touchUpInside)
|
|
return result
|
|
}()
|
|
|
|
private lazy var titleLabel: UILabel = {
|
|
let result = UILabel()
|
|
result.text = "Preview"
|
|
result.textColor = .white
|
|
result.font = .boldSystemFont(ofSize: Values.veryLargeFontSize)
|
|
result.textAlignment = .center
|
|
return result
|
|
}()
|
|
|
|
// MARK: Lifecycle
|
|
override func viewDidLoad() {
|
|
super.viewDidLoad()
|
|
view.backgroundColor = .black
|
|
setUpViewHierarchy()
|
|
cameraManager.prepare()
|
|
}
|
|
|
|
func setUpViewHierarchy() {
|
|
// Preview video view
|
|
view.addSubview(renderView)
|
|
renderView.translatesAutoresizingMaskIntoConstraints = false
|
|
renderView.pin(to: view)
|
|
// Fade view
|
|
view.addSubview(fadeView)
|
|
fadeView.translatesAutoresizingMaskIntoConstraints = false
|
|
fadeView.pin([ UIView.HorizontalEdge.left, UIView.VerticalEdge.top, UIView.HorizontalEdge.right ], to: view)
|
|
// Close button
|
|
view.addSubview(closeButton)
|
|
closeButton.translatesAutoresizingMaskIntoConstraints = false
|
|
closeButton.pin(.left, to: .left, of: view)
|
|
closeButton.center(.vertical, in: fadeView)
|
|
// Confirm button
|
|
view.addSubview(confirmButton)
|
|
confirmButton.translatesAutoresizingMaskIntoConstraints = false
|
|
confirmButton.pin(.right, to: .right, of: view)
|
|
confirmButton.center(.vertical, in: fadeView)
|
|
// Title label
|
|
view.addSubview(titleLabel)
|
|
titleLabel.translatesAutoresizingMaskIntoConstraints = false
|
|
titleLabel.center(.vertical, in: closeButton)
|
|
titleLabel.center(.horizontal, in: view)
|
|
}
|
|
|
|
override func viewDidAppear(_ animated: Bool) {
|
|
super.viewDidAppear(animated)
|
|
cameraManager.start()
|
|
}
|
|
|
|
override func viewWillDisappear(_ animated: Bool) {
|
|
super.viewWillDisappear(animated)
|
|
cameraManager.stop()
|
|
}
|
|
|
|
// MARK: Interaction
|
|
@objc func confirm() {
|
|
delegate?.cameraDidConfirmTurningOn()
|
|
self.dismiss(animated: true, completion: nil)
|
|
}
|
|
|
|
@objc func cancel() {
|
|
self.dismiss(animated: true, completion: nil)
|
|
}
|
|
|
|
// MARK: CameraManagerDelegate
|
|
func handleVideoOutputCaptured(sampleBuffer: CMSampleBuffer) {
|
|
renderView.enqueue(sampleBuffer: sampleBuffer)
|
|
}
|
|
}
|