Class (BackForwardCacheOptions)

Implements a BackForwardCacheOptions object to set back-forward cache options of the Web component.

NOTE

The initial APIs of this module are supported since API version 9. Updates will be marked with a superscript to indicate their earliest API version.

The initial APIs of this class are supported since API version 12.

The sample effect is subject to the actual device.

System capability: SystemCapability.Web.Webview.Core

Attributes

Name	Type	Read-Only	Optional	Description
size¹²⁺	number	No	No	The maximum number of pages that can be cached in a Web component. The default value is 1, and the maximum value is 50. If this parameter is set to 0 or a negative value, the back-forward cache is disabled. The Web component reclaims the cache for memory pressure.
timeToLive¹²⁺	number	No	No	The time that a Web component allows a page to stay in the back-forward cache. If this parameter is set to 0 or a negative value, the back-forward cache is disabled. Default value: 600 Unit: second