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# NCWidgetController

An object used to specify whether a Today widget has content to display.

```
class NCWidgetController
```

## Overview

The `NCWidgetController` class defines an object that both a Today widget and the containing app that delivers the widget can use to specify whether the widget has content to display. Because this class helps a widget and its containing app coordinate the display of the widget’s content, a widget that doesn’t communicate with its containing app is unlikely to use this class.

Typically, a widget appears in the Today view when it has content to display. If a currently running widget no longer has content to display, it can get a widget controller and set the flag in the [`setHasContent(_:forWidgetWithBundleIdentifier:)`](/documentation/NotificationCenter/NCWidgetController/setHasContent(_:forWidgetWithBundleIdentifier:)) method to `false`. If the containing app later determines that there is content this widget should display, the app can get a widget controller and update the flag, even while the widget isn’t running.

The `NCWidgetController` class should not be subclassed.

## Topics

### Getting a Widget Controller

[`widgetController()`](/documentation/NotificationCenter/NCWidgetController/widgetController())

Returns a widget controller used to specify whether a widget has content to display.

### Specifying the Presence of Content

[`setHasContent(_:forWidgetWithBundleIdentifier:)`](/documentation/NotificationCenter/NCWidgetController/setHasContent(_:forWidgetWithBundleIdentifier:))

Sets whether the specified widget has content to display.

### Type Methods

[`default()`](/documentation/NotificationCenter/NCWidgetController/default())


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