Get last image from Photos.app?

Question

I have seen other apps do it where you can import the last photo from the Photos app for quick use but as far as I know, I only know how to get A image and not the last (mos

Answer 1

Xamarin.iOS version of accepted answer (how to get last image) including all notices from other answers:

  private void ChooseLastTakenPictureImplementation()
    {
        var library = new ALAssetsLibrary();
        // Enumerate just the photos and videos group by using ALAssetsGroupSavedPhotos.
        library.Enumerate(ALAssetsGroupType.SavedPhotos, (ALAssetsGroup assetsGroup, ref bool stop) =>
            {
                if (stop || assetsGroup == null)
                {
                    return;
                }
                //Xamarin does not support ref parameters in nested lamba expressions
                var lambdaStop = false;
                //Check that the group has more than one picture
                if (assetsGroup.Count > 0)
                {
                    // Within the group enumeration block, filter to enumerate just photos.
                    assetsGroup.SetAssetsFilter(ALAssetsFilter.AllPhotos);
                    // Chooses the photo at the last index
                    assetsGroup.Enumerate(NSEnumerationOptions.Reverse, (ALAsset result, int index, ref bool innerStop) =>
                        {
                            // The end of the enumeration is signaled by asset == nil.
                            if (result != null)
                            {
                                var representation = result.DefaultRepresentation;
                                var latestPhoto = new UIImage(representation.GetImage(), representation.Scale, (UIImageOrientation)representation.Orientation);
                                // Stop the enumerations
                                lambdaStop = innerStop = true;
                                // Do something interesting with the AV asset.
                                HandleImageAutoPick(latestPhoto);
                            }
                        });
                    stop = lambdaStop;
                    return;
                }
                else
                {
                    //Handle this special case where user has no pictures
                }
            }, error =>
            {
                // Typically you should handle an error more gracefully than this.
                Debug.WriteLine(error.Description);
            });
    }