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# init(contentListWithViewController:)

Creates a split view item that represents a content list for the specified view controller.

```
convenience init(contentListWithViewController viewController: NSViewController)
```

## Discussion

You use a content list to display information like the Mail app’s list of messages or the Notes app’s list of notes.

Content lists use standard system default values for these properties:

- [`minimumThickness`](/documentation/AppKit/NSSplitViewItem/minimumThickness), [`maximumThickness`](/documentation/AppKit/NSSplitViewItem/maximumThickness), and [`automaticMaximumThickness`](/documentation/AppKit/NSSplitViewItem/automaticMaximumThickness) use the standard system defaults for content lists
- [`preferredThicknessFraction`](/documentation/AppKit/NSSplitViewItem/preferredThicknessFraction) uses the standard fraction for content lists (`0.28` if an adjacent sidebar is visible, `0.33` if not)

---

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