Package com.google.gwt.user.client.ui

## Interface TreeListener

- All Superinterfaces:
    `java.util.EventListener`

      @Deprecated
      public interface TreeListener
      extends java.util.EventListener

  Deprecated.
  Use `SelectionHandler`, `OpenHandler`, and `CloseHandler` instead
  Event listener interface for tree events.

- - ### Method Summary

    All Methods Instance Methods Abstract Methods Deprecated Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `onTreeItemSelected​(TreeItem item)` | Deprecated. use `SelectionHandler.onSelection(com.google.gwt.event.logical.shared.SelectionEvent)` instead
    `void` | `onTreeItemStateChanged​(TreeItem item)` | Deprecated. use `OpenHandler.onOpen(com.google.gwt.event.logical.shared.OpenEvent)` and/or `CloseHandler.onClose(com.google.gwt.event.logical.shared.CloseEvent)`

- - ### Method Detail

    - #### onTreeItemSelected

          @Deprecated
          void onTreeItemSelected​(TreeItem item)

      Deprecated.
      use `SelectionHandler.onSelection(com.google.gwt.event.logical.shared.SelectionEvent)` instead
      Fired when a tree item is selected.
      Parameters:
        `item` - the item being selected.

    - #### onTreeItemStateChanged

          @Deprecated
          void onTreeItemStateChanged​(TreeItem item)

      Deprecated.
      use `OpenHandler.onOpen(com.google.gwt.event.logical.shared.OpenEvent)` and/or `CloseHandler.onClose(com.google.gwt.event.logical.shared.CloseEvent)`
      Fired when a tree item is opened or closed.
      Parameters:
        `item` - the item whose state is changing.