Senders differ on gesture EventArgs

[jknaudt21]

Depending on what kind of gesture you use, if you listen for the event associated with the gesture (for example DragStarting or Tapped) you either get the GestureRecognizer as the sender or the view in which the GestureRecognizer is inside of.

This is not a bug - but it is inconsistent. For example, if I listen for the Tapped event, the sender is going to be the view. If I listen for drag-related events (DragStarting, DragOver, DragLeave), I will get the DragGestureRecognizer.

This means that in certain scenarios, you can just cast your sender as a View while in others you have to do (sender as Element).Parent if you want to access the view that sent the event.

A simple way to illustrate this is using a blank app pasting the following:

In the xaml:

    <StackLayout>
        <Label Background="AliceBlue" Text="Tap Me!">
            <Label.GestureRecognizers>
                <TapGestureRecognizer Tapped="OnTap"/>
            </Label.GestureRecognizers>
        </Label>
        <Label Background="LightGreen" Text="Drag Me!">
            <Label.GestureRecognizers>
                <DragGestureRecognizer DragStarting="OnDragStart"/>
            </Label.GestureRecognizers>
        </Label>
    </StackLayout>

In the code behind:

		private void OnTap(object sender, TappedEventArgs e)
		{
			Console.WriteLine("I got tapped");
		}

		private void OnDragStart(object sender, DragStartingEventArgs e)
		{
			Console.WriteLine("I got dragged");
		}

Put a break point in each method and observe who the sender is after a gesture is executed. When OnTap gets called, the sender will be the Label element. When OnDragStart is called, the sender will be the DragGestureRecognizer

Shouldn't this behavior be standardized?