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Question by FernandoGBR · Oct 04, 2017 at 05:53 PM · drag-and-drop

OnEndDrag + OnDrop issue

I have two kind of game objects to make a drag and drop. A slot object, which implements IDropHandler A draggable object, which implements IBeginDragHandler, IDragHandler, IEndDragHandler

The problem is the following:

  • If I set the blockRaycasts of the draggable object to true (as it is by default), the OnDrop event does not triggers in the slot object. I think this is the expected behaviour.

  • BUT... if i set the blockraycast to false, then i get the onDrop event on the slot item, but not the onEndDrag on the draggable item, in which i set back the raycasts and other stuff. I think this is not the expected behaviour.

The questions:

  • Is this the expected behaviour for both of my examples?

  • If it is, can the draggable item know by itself that the OnDrop has happened in the slot item without needing to inform him from the OnDrop in the slot item?

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Answer by mohsansaleem · Jan 03, 2018 at 10:32 AM

Add Canvas Group to the Selected Object. By default, the SelectedObject would by the object from where drag has started(Only if there is a Button Component on that GameObject). You can assign some other object in OnDragStart

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eventData.selectedObject = m_DraggingIcon;

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