partial void ShowPHImagePicker(NSObject sender)
{
var config = new PHPickerConfiguration
{
Filter = PHPickerFilter.ImagesFilter,
SelectionLimit = 0
};
var picker = new PHPickerViewController(config)
{
ModalPresentationStyle = UIModalPresentationStyle.Popover,
Delegate = new PickerDelegate(imagePreview)
};
var popPC = picker.PopoverPresentationController;
popPC.PermittedArrowDirections = UIPopoverArrowDirection.Any;
popPC.SourceView = uiImagePickerButton;
popPC.SourceRect = uiImagePickerButton.Bounds;
ShowViewController(picker, this);
}
static async Task <IEnumerable <IMediaFile> > PlatformPickAsync(int selectionLimit, params MediaFileType[] types)
{
var vc = GetCurrentUIViewController();
var isVideo = types.Contains(MediaFileType.Video);
var isImage = types.Contains(MediaFileType.Image);
var tcs = new TaskCompletionSource <IEnumerable <IMediaFile> >();
if (HasOSVersion(14))
{
var config = new PHPickerConfiguration();
config.SelectionLimit = selectionLimit;
if (!(isVideo && isImage))
{
config.Filter = isVideo
? PHPickerFilter.VideosFilter
: PHPickerFilter.ImagesFilter;
}
pickerRef = new PHPickerViewController(config)
{
Delegate = new PHPickerDelegate(tcs)
};
}
else
{
var sourceType = UIImagePickerControllerSourceType.PhotoLibrary;
if (!UIImagePickerController.IsSourceTypeAvailable(sourceType))
{
throw new FeatureNotSupportedException();
}
var availableTypes = UIImagePickerController.AvailableMediaTypes(sourceType);
isVideo = isVideo && availableTypes.Contains(UTType.Movie);
isImage = isImage && availableTypes.Contains(UTType.Image);
if (!(isVideo || isImage))
{
throw new FeatureNotSupportedException();
}
pickerRef = new UIImagePickerController
{
SourceType = sourceType,
AllowsEditing = false,
AllowsImageEditing = false,
Delegate = new PhotoPickerDelegate(tcs),
MediaTypes = isVideo && isImage
? new string[] { UTType.Movie, UTType.Image }
: new string[] { isVideo?UTType.Movie : UTType.Image }
};
}
if (pickerRef.PresentationController != null)
{
pickerRef.PresentationController.Delegate = new PresentatControllerDelegate(tcs);
}
if (DeviceInfo.Idiom == DeviceIdiom.Tablet && pickerRef.PopoverPresentationController != null && vc.View != null)
{
pickerRef.PopoverPresentationController.SourceRect = vc.View.Bounds;
}
await vc.PresentViewControllerAsync(pickerRef, true);
var result = await tcs.Task;
pickerRef?.Dispose();
pickerRef = null;
return(result);
}
