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Configure Overlays

VideoEditor SDK supports several configuration options for the OverlayToolController allowing flexible adaptation to different needs and use cases. For a detailed explanation of how to configure different editor views, refer to this guide.

initialOverlayIntensity#

The default intensity of filters is set to 100% (1.0). In this example, we only want to have 50% (0.5) intensity. Since showOverlayIntensitySlider is set to false, the filters will always be applied with a fixed intensity of 50%.

showOverlayIntensitySlider#

By default, the editor will show the slider to change the intensity of the selected filter. In our example, the slider should not be shown since we only want a specific intensity to be applied.

File:
import UIKit
import VideoEditorSDK


class VideoOverlaysConfigurationSwift: Example, VideoEditViewControllerDelegate {
  override func invokeExample() {
    // Create a `Video` from a URL to a video in the app bundle.
    let video = Video(url: Bundle.main.url(forResource: "Skater", withExtension: "mp4")!)


    // Create a `Configuration` object.
    let configuration = Configuration { builder in
      // Configure the `OverlayToolController` which lets the user
      // place overlays on top of the video.
      builder.configureOverlayToolController { options in
        // By default the editor has an initial overlay intensity of
        // 100% (1). For this example it only uses 50% (0.5).
        options.initialOverlayIntensity = 0.5


        // By default the editor shows a slider to let the user change
        // the intensity of an overlay. For this example this is disabled.
        // Thereby the overlays will always have an intensity of 50% (0.5)
        // since we applied this with the `initialOverlayIntensity`.
        options.showOverlayIntensitySlider = false
      }
    }


    // Create and present the video editor. Make this class the delegate of it to handle export and cancelation.
    let videoEditViewController = VideoEditViewController(videoAsset: video, configuration: configuration)
    videoEditViewController.delegate = self
    videoEditViewController.modalPresentationStyle = .fullScreen
    presentingViewController?.present(videoEditViewController, animated: true, completion: nil)
  }


  // MARK: - VideoEditViewControllerDelegate


  func videoEditViewControllerShouldStart(_ videoEditViewController: VideoEditViewController, task: VideoEditorTask) -> Bool {
    // Implementing this method is optional. You can perform additional validation and interrupt the process by returning `false`.
    true
  }


  func videoEditViewControllerDidFinish(_ videoEditViewController: VideoEditViewController, result: VideoEditorResult) {
    // The user exported a new video successfully and the newly generated video is located at `result.output.url`. Dismissing the editor.
    presentingViewController?.dismiss(animated: true, completion: nil)
  }


  func videoEditViewControllerDidFail(_ videoEditViewController: VideoEditViewController, error: VideoEditorError) {
    // There was an error generating the video.
    print(error.localizedDescription)
    // Dismissing the editor.
    presentingViewController?.dismiss(animated: true, completion: nil)
  }


  func videoEditViewControllerDidCancel(_ videoEditViewController: VideoEditViewController) {
    // The user tapped on the cancel button within the editor. Dismissing the editor.
    presentingViewController?.dismiss(animated: true, completion: nil)
  }
}