public void RemoveRecognizer(BaseNativeGestureRecognizer recognizer)
{
NativeRecognizers.Remove(recognizer);
if (GroupRecognizers.Contains(recognizer.Recognizer))
{
GroupRecognizers.Remove(recognizer.Recognizer);
}
}
public void Destroy()
{
TargetView.PropertyChanged -= Recognizer_View_PropertyChanged;
UnInitialize();
//remove any remaining gesture recognizers;
var recognizersToRemove = NativeRecognizers.ToArray();
foreach (var recognizer in recognizersToRemove)
{
RemoveRecognizer(recognizer);
}
}
public void AddRecognizer(BaseNativeGestureRecognizer nativeRecognizer)
{
NativeRecognizers.Add(nativeRecognizer);
if (nativeRecognizer.Recognizer.View != TargetView)
{
throw new InvalidOperationException("tried to add recognizer to gesture coordinator that is associated with a different view");
}
nativeRecognizer.NativeView = _nativeView;
var formsRecognizer = nativeRecognizer.Recognizer;
if (formsRecognizer.IsConsumingTouchesInParallel && formsRecognizer.View is Xamarin.Forms.Layout <Xamarin.Forms.View> )
{
GroupRecognizers.Add(formsRecognizer);
}
}