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

## Interface AcceptsOneWidget

- All Known Subinterfaces:
    `HasOneWidget`
  All Known Implementing Classes:
    `CustomScrollPanel`, `DeckLayoutPanel`, `DecoratedPopupPanel`, `DecoratorPanel`, `DialogBox`, `FocusPanel`, `FormPanel`, `LazyPanel`, `LoggingPopup`, `PopupPanel`, `ResizeLayoutPanel`, `ScrollPanel`, `SimpleLayoutPanel`, `SimplePanel`

      public interface AcceptsOneWidget

  Implemented by displays that can be given accept an `IsWidget` to show.

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `setWidget​(IsWidget w)` | Set the only widget of the receiver, replacing the previous widget if there was one.

- - ### Method Detail

    - #### setWidget

          void setWidget​(IsWidget w)

      Set the only widget of the receiver, replacing the previous widget if there was one.
      Parameters:
        `w` - the widget, or `null` to remove the widget
      See Also:
        `SimplePanel`