将 arkit 快照直接保存到照片库 swift 4

Question

下面我的代码部分拍摄了 arkit 的快照并将其放置在图像视图中。我正在尝试将其删除，然后从拍照并自动将其保存到照片库，而无需先将其放在图像视图中。

    @IBOutlet var cryMeARiver: UIImageView!
@IBOutlet weak var augmentedRealityView: ARSCNView!

 @IBAction func place(_ sender: Any) {
//THIS LINE OF THE CODE BELOW SAVES THE SNAPSHOT TO THE IMAGEVIEW
cryMeARiver.image = augmentedRealityView.snapshot()
}

Answer 1

由于snapshot函数returns一个UIImage很容易保存到IOS Photo Library.

开始之前，您需要确保在 info.plist 中设置了以下键：

  <key>NSPhotoLibraryUsageDescription</key>
  <string>To Save Your ARKit Scenes</string>

然后你可以像这样调用你的函数：

 @IBAction func saveScreenhot(){

        //1. Create A Snapshot
        let snapShot = self.augmentedRealityView.snapshot()

        //2. Save It The Photos Album
        UIImageWriteToSavedPhotosAlbum(snapShot, self, #selector(image(_:didFinishSavingWithError:contextInfo:)), nil)

 }

记得当然要使用回调方法来检查进程是否成功：

@objc func image(_ image: UIImage, didFinishSavingWithError error: Error?, contextInfo: UnsafeRawPointer) {

    if let error = error {
        print("Error Saving ARKit Scene \(error)")
    } else {
        print("ARKit Scene Successfully Saved")
    }
}

希望对您有所帮助...

将 arkit 快照直接保存到照片库 swift 4

save arkit snapshot directly to photo gallery swift 4

ios

save

swift4

arkit

photo-gallery