ios - 在相机预览 View 上添加按钮[快速相机库]

在我的Swift应用程序中，我正在使用该库来构建自定义摄像机：https://github.com/bwearley/BESwiftCamera

在我的视图控制器中：

var camera:BESwiftCamera!
    override func viewDidAppear(animated: Bool) {
        super.viewDidAppear(animated)
        self.attachCamera()
    }

    func attachCamera() {
        do {
            try self.camera.start()
        } catch BESwiftCameraErrorCode.CameraPermission {
            self.showCameraPermissionAlert()
        } catch BESwiftCameraErrorCode.MicrophonePermission {
            self.showMicrophonePermissionAlert()
        } catch {
            self.showUnknownErrorAlert()
        }
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        let screenRect = UIScreen.mainScreen().bounds

        // Configure Camera
        self.camera = BESwiftCamera(withQuality: AVCaptureSessionPresetHigh, position: .Rear, videoEnabled: true)
        self.camera.attachToViewController(self, withFrame: CGRectMake(0,0,screenRect.size.width,screenRect.size.height))
    ...
    }

这很好。但是，问题在于它加载了我在情节提要中针对该特定视图的元素（按钮）。如何在相机预览视图上加载情节提要板元素？

最佳答案

更新库中的行

https://github.com/bwearley/BESwiftCamera/blob/master/BESwiftCamera/BESwiftCamera.swift#L139

    vc.view.addSubview(self.view)

至

    vc.view.insertSubview(self.view, atIndex: 0)