Comments on: Drag and Drop in Flex

By: HerrCann

HerrCann — Thu, 10 Jul 2008 00:02:20 +0000

@rich:

“The cursors are also just styles of the DragManager class.”

I have an AIR application. I want to set the drag cursors as they appear in the http://www.adobe.com/devnet/flex/quickstart/adding_drag_and_drop coins example. How do I accomplish this? :S I’ve tried doing the following:

var dragInitiator:Image = new Image();
dragInitiator.source = draggedImg.icon;
dragInitiator.cursorManager.setCursor(customCursor, CursorManagerPriority.HIGH, 0, 0);

but it keeps on using the “windowish” ones instead of the Cursor I declared with:

[Bindable]
[Embed("/img/cc.png")]
private var customCursor:Class;

Any help is appreciated.

By: jwopitz

jwopitz — Thu, 24 Jan 2008 16:33:26 +0000

alright so nearly 6 months have passed, but I finally got around to redoing the thing and have a lib for drag n' drop. You can read the post here and the project resides here

By: Simple drag n’ drop for Flex (ala iGoogle) « jwopitz - flex/flash exploration

Thu, 24 Jan 2008 16:29:29 +0000

[...] the web and came across an old comment I had left on someone else’s blog.Â You can read that here.Â Then they emailed me asked if I had examples.Â After trudging around a bit I found em.Â Dusty [...]

By: rich

rich — Mon, 13 Aug 2007 17:46:09 +0000

Ian – another good point…however in my case that’s all that was needed. I specifically didn’t need items being dragged outside the container it was in.

By: Ian

Ian — Mon, 13 Aug 2007 04:51:01 +0000

The problem with using start/stop drag is that the item you’re dragging may get clipped by its container – the drag manager handles display much further up the chain so the item being dragged is always visible – plus it gives pointer cues indicating when and where you can release the dragged item…

By: Tink

Tink — Fri, 10 Aug 2007 19:18:50 +0000

Yep its pretty easy to cusomize, but the nicest thing is that you are also passing data around, not just visual items.

By: rich

rich — Fri, 10 Aug 2007 17:01:31 +0000

yeah, i’m realizing now that it say right in the DragManager documentation that it’s all about the data:

The DragManager class manages drag and drop operations, which let you move data from one place to another in a Flex application.

@5566: wow, i have been using flex for a while and love it….i’m not sure how you can be anti-flex.

Anyway, the ‘translucency’ of the image being dragged is simply passed as a parameter to the DragManager.doDrag().

The cursors are also just styles of the DragManager class.

By: 5566

5566 — Fri, 10 Aug 2007 10:24:55 +0000

as an anti-flex flash lover, I seriously doubt whether the effects flex offered really worth all the trouble. I believe the DragManager is just a class using startDrag and stopDrag. It’s beautifully done, but problems rise when designers ask, “can we make it more translucent when dragging it? And can we remove the cross when dragging to a wrong place? or at least let’s change the red cross to yellow one?”

By: Tink

Tink — Fri, 10 Aug 2007 08:55:19 +0000

The Flex DnD handles drop areas, icons, and drop effects unlike startDrag which just dargs your item as you required.

I have an old example here

http://www.tink.ws/blog/simple-flex-20-drag-example/

By: rich

rich — Fri, 10 Aug 2007 03:05:55 +0000

That’s true, and a good point. Like I mentioned in my post, I was only interested in draggin an image around…all that setup just to do that was overkill.

Sure, I’ll check out that framework, i think it’d be interesting…shoot it over whenever you can.