public void PhotoLibraryDidChange(PHChange changeInstance)
{
// Call might come on any background queue. Re-dispatch to the main queue to handle it.
DispatchQueue.MainQueue.DispatchAsync(() => {
// Check if there are changes to the asset we're displaying.
PHObjectChangeDetails changeDetails = changeInstance.GetObjectChangeDetails(Asset);
if (changeDetails == null)
{
return;
}
// Get the updated asset.
// TODO: check return type. Catch! ObjectAfterChanges should be PHObject instead of NSObject https://bugzilla.xamarin.com/show_bug.cgi?id=35540
Asset = (PHAsset)changeDetails.ObjectAfterChanges;
if (Asset != null)
{
FavoriteButton.Title = Asset.Favorite ? "♥︎" : "♡";
}
// If the asset's content changed, update the image and stop any video playback.
if (changeDetails.AssetContentChanged)
{
UpdateImage();
playerLayer?.RemoveFromSuperLayer();
playerLayer = null;
}
});
}
public void PhotoLibraryDidChange(PHChange changeInstance)
{
// Call might come on any background queue. Re-dispatch to the main queue to handle it.
DispatchQueue.MainQueue.DispatchAsync(() =>
{
// Check if there are changes to the asset we're displaying.
PHObjectChangeDetails changeDetails = changeInstance.GetObjectChangeDetails(Asset);
if (changeDetails == null)
{
return;
}
// Get the updated asset.
var assetAfterChanges = changeDetails.ObjectAfterChanges as PHAsset;
if (assetAfterChanges == null)
{
return;
}
Asset = (PHAsset)assetAfterChanges;
if (Asset != null)
{
FavoriteButton.Title = Asset.Favorite ? "♥︎" : "♡";
}
// If the asset's content changed, update the image and stop any video playback.
if (changeDetails.AssetContentChanged)
{
UpdateContent();
playerLayer?.RemoveFromSuperLayer();
playerLayer = null;
playerLooper = null;
}
});
}
