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# CAScrollLayer

A layer that displays scrollable content larger than its own bounds.

```
class CAScrollLayer
```

## Overview

The [`CAScrollLayer`](/documentation/QuartzCore/CAScrollLayer) class is a subclass of [`CALayer`](/documentation/QuartzCore/CALayer) that simplifies displaying a portion of a layer. The extent of the scrollable area of the [`CAScrollLayer`](/documentation/QuartzCore/CAScrollLayer) is defined by the layout of its sublayers. The visible portion of the layer content is set by specifying the origin as a point or a rectangular area of the contents to be displayed. [`CAScrollLayer`](/documentation/QuartzCore/CAScrollLayer) does not provide keyboard or mouse event-handling, nor does it provide visible scrollers.

## Topics

### Scrolling constraints

[`scrollMode`](/documentation/QuartzCore/CAScrollLayer/scrollMode)

Defines the axes in which the layer may be scrolled.

### Scrolling the layer

[`scroll(to:)`](/documentation/QuartzCore/CAScrollLayer/scroll(to:)-37q0p)

Changes the origin of the receiver to the specified point.

[`scroll(to:)`](/documentation/QuartzCore/CAScrollLayer/scroll(to:)-782vd)

Scroll the contents of the receiver to ensure that the rectangle is visible.

### Constants

[Scroll Modes](/documentation/QuartzCore/scroll-modes)

These constants describe the supported scroll modes used by the [`scrollMode`](/documentation/QuartzCore/CAScrollLayer/scrollMode) property.


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