com.facebook.litho.annotations

Annotation Type ShouldUpdate

@Retention(value=SOURCE)
public @interface ShouldUpdate

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
boolean	onMount Note: This should only be set in the context of MountSpec.

Element Detail

onMount

public abstract boolean onMount

Note: This should only be set in the context of MountSpec. Will be ignored for LayoutSpec types.

Returns:

If this is true and this MountSpec is pureRender the mount process will check shouldComponentUpdate before unmounting/mounting in place and only update the content if necessary. If this is false instead, the mount process will only rely on the information provided by the layout process. As a rule of thumb this should only be set to true when for a Component the cost of calling Mount/Unmount greatly exceeds the cost of calling ShouldUpdate.

Default:

false