Possible Values

Any

Matches any transition.

InFront

Matches if the page is in front of, or will be in front of, the active page.

Behind

Matches if the page is behind, or will be behind, the active page.

ToActive

Matches only when the page is becoming the active one.

ToInactive

Matches only when the page is becoming an inactive one.

ToBack

Matches when the page is becoming inactive and moving behind the active one.

FromBack

Matches when the page is becoming active and moving from behind the active one.

ToFront

Matches when the page is becoming inactive and moving in front of the active one.

FromFront

Matches when the page is becoming active and moving from in front of the active one.