保存已创建的实时照片 [英] Saving Already Created Live Photos

问题描述

我有一些实时照片创建JPEG和MOV文件，现在我想将它们导入应用程序，允许用户将实时照片保存到他们的照片库。我怎么能这样做呢？

I've got some live photos created JPEG and MOV files, now i want to import them into the app that would allow the user to save the live photos to their photo library. How can i go about doing this?

我看过这个： https://github.com/genadyo/LivePhotoDemoSwift 这基本上允许您录制视频并将其转换为实时照片。但是因为我已经创建了实时照片，我可以立即将它们保存到相机胶卷中还是我需要遵循不同的路线？

I've looked into this: https://github.com/genadyo/LivePhotoDemoSwift Which basically allows you to record video and turn it into a live photo. But since i've already created the "live photos", can i save them to the camera roll right away or do i need to follow a different route?

推荐答案

您可以使用 PHLivePhoto.requestLivePhotoWithResourceFileURLs 从LivePhoto中的单独元素创建LivePhoto，然后您就可以将其保存到库中。

You can create a LivePhoto from separate elements from a LivePhoto by using PHLivePhoto.requestLivePhotoWithResourceFileURLs, you will then be able to save it to the library.

func makeLivePhotoFromItems(imageURL: NSURL, videoURL: NSURL, previewImage: UIImage, completion: (livePhoto: PHLivePhoto) -> Void) {
    PHLivePhoto.requestLivePhotoWithResourceFileURLs([imageURL, videoURL], placeholderImage: previewImage, targetSize: CGSizeZero, contentMode: PHImageContentMode.AspectFit) {
        (livePhoto, infoDict) -> Void in
        if let lp = livePhoto {
            completion(livePhoto: lp)
        }
    }
}

makeLivePhotoFromItems(imgURL, videoURL: movURL, previewImage: prevImg) { (livePhoto) -> Void in
    // "livePhoto" is your PHLivePhoto object, save it/use it here
}

您将需要JPEG文件URL，MOV文件URL和预览图像（通常只是JPEG或更轻的版本）。

You will need the JPEG file URL, the MOV file URL, and a "preview" image (which is usually just the JPEG or a lighter version of it).

在游乐场中工作的完整示例​​此处。

Full example working in a Playground here.

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