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flex：能够拖放影片剪辑

发布于 2024-11-04 17:52:27 字数 117 浏览 5 评论 0原文

为了改善用户体验，我们希望能够拥有旋转轮的动画影片剪辑，并能够将其拖放到定义区域的任何位置。

我们已将旋转轮构建为 SWC 文件。

我们如何进行拖放。我见过的例子只满足图像的丢失。再次感谢

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手心的温暖 2024-11-11 17:52:27

要使用 Flex 类进行拖放，您需要将该 movieClip 包装在 UIComponent;其中包含与拖放相关的所有事件。

这里有一些好的说明。要复制相关部分：

使组件可拖动
添加 MouseEvent.MOUSE_DOWN 监听器
确定拖动发起者并将其移交给 DragManager
要启动拖放操作，您需要
组件的 MouseEvent
拖拽。

public function makeDraggable( component:IUIComponent ):void
{
   // a mouseDown event will start the drag
   component.addEventListener( MouseEvent.MOUSE_DOWN, beginDrag );
}

public function beginDrag( mouseEvent:MouseEvent ):void
{
   // the drag initiator is the object being dragged (target of the mouse event)
   var dragInitiator:IUIComponent = mouseEvent.currentTarget as IUIComponent;

   // the drag source contains data about what's being dragged
   var dragSource:DragSource = new DragSource();

   // ask the DragManger to begin the drag
   DragManager.doDrag( dragInitiator, dragSource, mouseEvent, null );
}

To use the Flex classes for drag and drop you'll need to wrap that movieClip in an a UIComponent; which has all the events related to drag and drop.

Here are some good instructions. To copy the relevant pieces:

Make a Component Draggable
Add listener for MouseEvent.MOUSE_DOWN
Determine drag initiator and hand-off to DragManager
To kick off a drag-n-drop, you'll need
a MouseEvent for the component to be
dragged.

public function makeDraggable( component:IUIComponent ):void
{
   // a mouseDown event will start the drag
   component.addEventListener( MouseEvent.MOUSE_DOWN, beginDrag );
}

public function beginDrag( mouseEvent:MouseEvent ):void
{
   // the drag initiator is the object being dragged (target of the mouse event)
   var dragInitiator:IUIComponent = mouseEvent.currentTarget as IUIComponent;

   // the drag source contains data about what's being dragged
   var dragSource:DragSource = new DragSource();

   // ask the DragManger to begin the drag
   DragManager.doDrag( dragInitiator, dragSource, mouseEvent, null );
}

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