Adding drag and drop support to Jtree

问题

i want to add drag and drop support to my JTree application

i hav a created a custom DefaultMutableTreeNode subclass

hav a default TreeCellRenderer

what all things do i need to add and where?

回答1:

The easiest way is to
1. Call tree.setDragEnabled(true)
2. set tree.transferHandler

There's a tutorial at: http://java.sun.com/docs/books/tutorial/uiswing/dnd/intro.html

You create a subclass of TransferHandler where you implement

canImport(JComponent comp, DataFlavor[] transferFlavors)

and

importData(JComponent comp, Transferable t) 

回答2:

I found this also useful

https://blogs.oracle.com/CoreJavaTechTips/entry/adding_drop_support_to_jtree

来源：https://stackoverflow.com/questions/1526291/adding-drag-and-drop-support-to-jtree