LAYOUT ANIMATION PANEL

摘要

Layout animation that automatically plays in response to a change in layout on UI platforms that typically require animations to be defined prior to the layout being calculated is provided. Developers are enabled to specify how one or more elements should animate via animation values that are relative to an unknown initial layout and an unknown final layout. When a property change event that triggers animation of an element occurs, the initial layout and the final layout of the element and its child elements are calculated. The animations are then scheduled to interpolate the changes in layout.

主权项

1. A computer-implemented method of animating a computer-generated display element, the method comprising:
receiving an indication of a property change of a user interface element; calculating an initial layout and a final layout of the property change; identifying changes of child elements in response to the property change; identifying one or more animations defined on the child elements; and scheduling the defined animations of the user interface element and the child elements for play.