| 摘要 |
A presenter system framework and methods performed by such framework are described for hosting a set of presenters that facilitate maintaining layouts for application views assigned a set of graphical elements. The presenter system provides a base presenter class and a set of interface methods, performed by a presentation engine, for creating and integrating an extensible set of presenter classes for handling various graphical element data types during a layout operation within a specified view. The presenter system enables application user interface developers to implement complex display layout operations through calls to the presentation engine. Examples of such complex display layout operations include: pagination, partial calculation, incremental calculation, multiple tries, chaining of layout features/operations.
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