如此简单的Flex拖动效果

<mx:Panel title="Select activities" layout="horizontal">

        <mx:VBox width="50%">

            <mx:Label text="Available activities"/>

            <mx:List

                id="srclist" width="100%" height="100"

                allowMultipleSelection="true"                

                dragEnabled="true"

                dropEnabled="true"

                dragMoveEnabled="true"

            />

        </mx:VBox>

        <mx:VBox width="50%">

            <mx:Label text="Activities I enjoy"/>

            <mx:List  

                id="destlist" width="100%" height="100"

                dropEnabled="true"

                dragEnabled="true"

                allowMultipleSelection="true"

                dragMoveEnabled="true"

            />

        </mx:VBox>

    </mx:Panel>