Save Generated Gif to Camera Roll

Save generated GIF to camera roll?

I found the issue was that I was unable to actually grab the GIF from the file. I switched from using CGImageDestinationCreateWithURL to CGImageDestinationCreateWithData and used a CFMutableDataRef to hold the Gif data. I don't know why, but that made saving to camera roll with writeImageDataToSavedPhotosAlbum work.

How to save gif added image to camera roll?

I solved my problem taking 25 screenshots of gif added imageview using Timer. I added these 25 screenshots to UIImage array and convert it to them video, finally saved to the photo library as a video.

class MainViewController: UIViewController {
  private var gifImages: [UIImage] = []
  private var gifTimer: Timer?

  UIBarButtonItem(barButtonSystemItem: .save,
                            target: self,
                            action: #selector(fireTimer))

 @objc func fireTimer() {
        scheduledTimerWithTimeInterval()
    }

 private func scheduledTimerWithTimeInterval(){
        gifTimer = Timer.scheduledTimer(timeInterval: 1.0, target: self, selector: #selector(saveEmojiAddedImage), userInfo: nil, repeats: true)
   }

  //MARK: - SaveEmojiAddedImage
  //Final Image
  @objc private func saveEmojiAddedImage() {
       UIGraphicsBeginImageContextWithOptions(parentView.frame.size, true, 0.0)
       parentView.drawHierarchy(in: parentView.bounds, afterScreenUpdates: true)            guard let image = UIGraphicsGetImageFromCurrentImageContext() else { return }
        UIGraphicsEndImageContext()
        if isGIFAdded {
            self.gifImages.append(image)
            indicator.startAnimating()
            view.isUserInteractionEnabled = false
            print("Gif Images Count: \(gifImages.count)")
            if gifImages.count == 25 {
                self.stopTimer()
                indicator.stopAnimating()
                view.isUserInteractionEnabled = true
            }
        }
    }


    func stopTimer() {
        if gifTimer != nil {
            gifTimer!.invalidate()
            gifTimer = nil
            DispatchQueue.global(qos: .background).async {
                DispatchQueue.main.async {
                    self.createVideo()
                }
            }
        }
    }

Create video using 25 screenshots of imageview

 func createVideo()  {
  let settings = CXEImagesToVideo.videoSettings(codec: AVVideoCodecType.h264.rawValue, width: (gifImages[0].cgImage?.width)!, height: (gifImages[0].cgImage?.height)!)
  let movieMaker = CXEImagesToVideo(videoSettings: settings)
  movieMaker.createMovieFrom(images: gifImages){ (fileURL:URL) in
      if self.isSaveVideo {
         PHPhotoLibrary.shared().performChanges({
         PHAssetChangeRequest.creationRequestForAssetFromVideo(atFileURL: fileURL)
           }) { saved, error in
                self.gifImages.removeAll()
                if saved {
                     self.gifImages.removeAll()
                     DispatchQueue.main.async {
                        self.presentAlert(withTitle: "Successful", message: "GIF saved successfully")
                     }
                  } else {
                     DispatchQueue.main.async {
                         self.presentAlert(withTitle: "Error", message: "")
                      }
                    }
                }
            } else {
                self.gifImages.removeAll()
                self.videoFileURL = fileURL
            }
        }
    }
}

Saving gif file created from screenshots to camera roll

Sadly this can't be solved. The reason for this is that Photos app can't (at the present) display animated GIFs and it only displays one frame from the GIF as a static image. That doesn't mean though that the gif wasn't saved properly. I haven't tried your code but everything seems Ok.

There's a way of testing this. In Messages app (for example) GIFs are being played correctly, so if you share the GIF image from Photos app via ActivityController, select Message and then send it to yourself, you should see animated GIF image in Messages app.

How to write animated GIF to iOS camera roll?

Create an ALAssetLibrary instance. Use this method with your NSData: writeImageDataToSavedPhotosAlbum:metadata:completionBlock:

Reference

Saving an animated gif from AppData to photo album - iOS 11

add frameworks foundation and photos

#import <Foundation/Foundation.h>
#import <Photos/Photos.h>

int saveGifToGallery(const char *path0){

    NSString *path = [NSString stringWithUTF8String:path0];
    NSData *data = [NSData dataWithContentsOfFile:path];
    [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
        PHAssetResourceCreationOptions *options = [[PHAssetResourceCreationOptions alloc] init];
        [[PHAssetCreationRequest creationRequestForAsset] addResourceWithType:PHAssetResourceTypePhoto data:data options:options];
    } completionHandler:^(BOOL success, NSError * _Nullable error) {
        NSLog(@"：%d",success);
    }];

    return 1;

}

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