private void TryDisposePlayer()
{
if (_player != null)
{
try
{
_videoLayer.RemoveObserver(this, new NSString("videoRect"), _videoLayer.Handle);
_videoLayer.RemoveFromSuperLayer();
_player.CurrentItem?.RemoveObserver(this, new NSString("loadedTimeRanges"), _player.Handle);
_player.CurrentItem?.RemoveObserver(this, new NSString("status"), _player.Handle);
_player.CurrentItem?.RemoveObserver(this, new NSString("duration"), _player.Handle);
_player.RemoveObserver(this, new NSString("rate"), RateObservationContext.Handle);
_player.RemoveTimeObserver(_periodicTimeObserverObject);
_player.RemoveAllItems();
}
finally
{
_itemFailedToPlayToEndTimeNotification?.Dispose();
_playbackStalledNotification?.Dispose();
_didPlayToEndTimeNotification?.Dispose();
_videoLayer?.Dispose();
_player?.CurrentItem?.Dispose();
_player?.Dispose();
_player = 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.
// 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;
}
});
}
void RemovePlayerLayer()
{
if (playerLayer != null)
{
playerLayer.Player.Pause();
playerLayer.RemoveFromSuperLayer();
playerLayer.Dispose();
}
}
private void stopPlaying(Object sender, EventArgs ea)
{
_player.Pause();
_playerLayer.RemoveFromSuperLayer();
//remove subviews
foreach (var view in this.View.Subviews)
{
view.RemoveFromSuperview();
}
this.btnDonePlaying.TouchUpInside -= stopPlaying;
}
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;
}
});
}
