This project demonstrates the use of the new, in Flutter 1.20

Last update: May 19, 2021

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Overview

Know where you drag & drop!

This project demonstrates the use of the new, in Flutter 1.20, onAcceptWithDetails callback on DragTarget. It enables you to determine the coordinates of the drop.

Before Flutter 1.20, these coordinates were only available from the Draggable.onDragEnd(details) callback. Getting the drop coordinates (say, for use in painting in/around your DragTarget) was:

awkward if the Draggable did not have the same parent as your DragTarget; you would have to store the coordinates somewhere and notify another widget where to find them.
impossible if the Draggable no longer exists when the drop occurs. For example, if a panel containing the Draggable animates off-screen before the user drops the feedback widget.

The example shows usage to paint the last drop position on the DragTarget.

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Comments

how to get position if dragtarget is list

if Dragtarget is listview then when drop the item how can we put that item on that index on which that item dragged.

for example. if dragitem 5 is dragged to list(DragTarget)'s item at 1st index then this item 5 will be at index 1 as its dropped on it.

opened by mehtahardikr 2

Owner

Daniel Iglesia

GitHub

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