XF支持的每个平台都有其自己的打印机制. XF不提供任何跨平台打印的抽象.您将需要为每一层编写打印逻辑，并使用 DependencyService (或其他一些DI引擎).

Every platform XF supports has it's own mechanism for printing. XF does not provide any abstractions for printing in a cross-platform manner. You will need to write printing logic for each layer and expose it to XF using DependencyService (or some other DI engine).